Delphi 4 & VB.NET, don't play nice??

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 - 1
 - Transparency, ASP.NET, and GDI+ I am trying to create graphics with GDI+ that include transparency. However, the transparency never seems to show up, even though my colors have an alpha value of 0. How can I generate a graphic that is completely transparent in certain areas (so that the web page background shows through)? I save my graphics as gif files. I would appreciate, if possible, a simple example so that I can see the code. Thanks. -- Nathan Sokalski njsokalski@hotmail.com http://www.nathansokalski.com/ Tag: Delphi 4 & VB.NET, don't play nice?? Tag: 101236
 - 2
 - How to shut down my windows service Hello. I've created a windows service application. I am also creating a UI for it. I want to add a "Stop Service" button in my UI app, but am unsure how to code the shut down within the service app. Call Dispose()? Thanks in advance, Mike Tag: Delphi 4 & VB.NET, don't play nice?? Tag: 101235
 - 3
 - Can't get IIS to run ASP 1.1 Every time I open up a web application in Visual Studio, I get the following error message: Visual Studio .NET has detected that the specified web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications or services. Not surprisingly, I'm unable to run any of my ASP.NET web applications. Every time I try to open one of my application's web forms in IE or Firefox, the browser wants to open the file with Visual Studio, which I think is symptomatic of the ASP.NET engine not bothering to generate the appropriate web pages dynamically. However, I believe that I do have ASP.NET 1.1 installed -- it's listed (along with ASP.NET 1.0) in my Add/Remove Programs control panel, for example. Does anybody have some ideas of how I can get my applications running? Thanks a lot, Jay Tag: Delphi 4 & VB.NET, don't play nice?? Tag: 101233
 - 4
 - process.WaitForExit() problem on framework 2.0 beta Hello I have a programm that executes other processes. Everything was fine with framework 1.1. Now i have tested the assembly (still build with VS2003, framework 1.1) on the framework 2.0 beta. Unfortunatly in some cases, the method "process.WaitForExit()" waits infinite. When the process exits, it does not affect the WaitForExit method. If i replace the WaitForExit method with an interop call to kernel32.dll -> WaitForSingleObject it works perfectly again. Berni [System.Runtime.InteropServices.DllImport("kernel32.dll")] private static extern int WaitForSingleObject(IntPtr hHandle, uint dwMilliseconds); ... //this.process.WaitForExit(); WaitForSingleObject(this.process.Handle, 0xFFFFFFFF); Tag: Delphi 4 & VB.NET, don't play nice?? Tag: 101231
 - 5
 - Inserting/Adding objects to Collections Hello I am trying read from a xml file, pull the values in a object and then add the object to an ArrayList. I am using a 'while' loop to move through each node in the xml file and pulling the required values as needed and setting them to the relevant property within my object. The reading of the xml file works as it should. I get a problem when I try to add the object that I created to the arraylist. It seems to be adding each one, but when I view the results of the list, it shows the last object passed in for each object stored within the Arraylist. Here is the code that is giving me issues: public ArrayList readXMLClient(string path, string xPathEx) { XmlDocument document = new XmlDocument(); document.Load(path); XPathNavigator navigator = document.CreateNavigator(); int i = document.DocumentElement.ChildNodes.Count; int j = 0; ClientData objClientData = new ClientData(); ArrayList objArrayList = new ArrayList(); try { XPathNodeIterator _clientCode = navigator.Select(xPathEx + "/ClientCode"); XPathNodeIterator _clientName = navigator.Select(xPathEx + "/ClientName"); XPathNodeIterator _clientDetails = navigator.Select( xPathEx + "/ClientDetails"); while (_clientCode.MoveNext() && _clientName.MoveNext() && _clientDetails.MoveNext()) { objClientData.clientCode = _clientCode.Current.Value.ToString(); objClientData.clientName = _clientName.Current.Value.ToString(); objClientData.clientDetails = _clientDetails.Current.Value.ToString(); objArrayList.Insert(j,objClientData); j++; } } catch(Exception ex) { } return objArrayList; } Any help would be great. Thanking you in advance Vish Tag: Delphi 4 & VB.NET, don't play nice?? Tag: 101225
 - 6
 - Too many pending asynchronous disk write causes spurious errors I am using the asynchronous I/O model to receive data over a socket, and asynchronously write the incoming data to a disk file using FileStream. So long as the pending writes have not yet completed I continue to allocate more read buffers. As a result I can get a backlog of about 250 disk writes (1K buffers, because that is the max size the receiver will give me). During the course of a 50 MB transfer I get about 6 of these errors: 07:42:50.14 System.IndexOutOfRangeException: Probable I/O race condition detected while copying memory. The I/O package is not thread safe by default. In multithreaded applications, a stream must be accessed in a thread-safe way, such as a thread-safe wrapper returned by TextReader's or TextWriter's Synchronized methods. This also applies to classes like StreamWriter and StreamReader. 07:42:50.14 at System.Buffer.InternalBlockCopy(Array src, Int32 srcOffset, Array dst, Int32 dstOffset, Int32 count) 07:42:50.14 at System.IO.FileStream.BeginWrite(Byte[] array, Int32 offset, Int32 numBytes, AsyncCallback userCallback, Object stateObject) 07:42:50.14 at ODP.NMServe.DataChannelSession.ReceiveHandler(IAsyncResult ar) I am obviously doing SOMETHING wrong. I was thinking the FileSystem.BeginWrite was supposed to be safe to work from in the thread pool utilized by the socket read completions. And that there was safe FIFO queueing of requests. The FileStream was opened with the asynchronous option TRUE. I am not sure what the error messages are looking for, what I need to change to avoid this. The disk I am writing to is an SCSI RAID 5 disk array. This runs on a dual processor W2K box. Thanks for any pointers Best regards - Lee Gillie Tag: Delphi 4 & VB.NET, don't play nice?? Tag: 101224
 - 7
 - Disk file write performance Seeking some hints from a real framework asynchronous I/O ru of gu. I am trying to find the absolute fastest way to write binary data to disk files in VB.NET. I am working on an FTP server. In my development testing I have found that I can receive about 60 mbits/sec over the socket data connection using asynchronous reads, with the file writing disabled. When I try to incorporate asynchronous disk writing with FileStream it bogs down to about 4.5 mbits/sec. So I start with only three, but I allocate extra data buffers as needed to keep feeding the socket reads as fast as the system will take them, and obviously not reuse the buffers until the asynchronous disk write completes, and I find my buffer pool grows to about 250 (i.e. up to 250 pending asynchronous disk writes at any one moment). I/O buffers are 1K each. File transfers are about 50 MB. Thanks for any pointers Best regards - Lee Gillie Tag: Delphi 4 & VB.NET, don't play nice?? Tag: 101222
 - 8
 - Exception on Machine Without Visual Studio .Net Installed I have created a mixed mode (managed + native) application that links to a mixed mode dll. It runs fine on all XP machines with Visual Studio .Net installed, but on other machines with the .Net framework installed but not Visual Studio, it displays a pop-up window entitled "Common Runtime Debugging Services," and the unhelpful message: "Application has generated an exception that could not be handled." This happens when the application gets to the managed-code wrapper of a function (C++) that initializes the dll (__crt_dll_initialize) . The error is triggered just before it enters the crt-initializing wrapper function. It won't display a message-box window placed within the function but before the initialization. Try-catch does not catch the error. Depends.exe show no missing or problematic module. The error also is triggered when 0 is assigned to a pointer to a managed class of the dll. Any suggestion would be appreciated. -- sunrat Tag: Delphi 4 & VB.NET, don't play nice?? Tag: 101220
 - 9
 - Uninstall 2005 Beta 2 and reinstall 2003 Hi all, I've uninstalled Visual Studio .Net 2005 Beta 2 and need to reinstall Visual Studio .Net 2003 but I get an error that the .Net Framework 1.1 and J# redistributable packages cannot be installed. Is there a tool to clean up the mess the Beta leaves behind? Thanks, Ivan Tag: Delphi 4 & VB.NET, don't play nice?? Tag: 101219
 - 10
 - General GDI+ Error. I have the following code and when I use it to split a tiff file in seperate tiff files I receive a general gdi+ error. I have no clue what is going wrong. From http://www.codeproject.com/csharp/TiffManager.asp Code: using System; using System.IO; using System.Drawing; using System.Drawing.Imaging; using System.Collections; /// <summary> /// Summary description for TiffManager. /// </summary> public class TiffManager : IDisposable { private string _ImageFileName; private int _PageNumber; private Image image; private string _TempWorkingDir; public TiffManager(string imageFileName) { this._ImageFileName=imageFileName; image=Image.FromFile(_ImageFileName); GetPageNumber(); } public TiffManager() { } /// <summary> /// Read the image file for the page number. /// </summary> private void GetPageNumber() { Guid objGuid=image.FrameDimensionsList[0]; FrameDimension objDimension=new FrameDimension(objGuid); //Gets the total number of frames in the .tiff file _PageNumber=image.GetFrameCount(objDimension); return; } /// <summary> /// Read the image base string, /// Assert(GetFileNameStartString(@"c:\test\abc.tif"),"abc") /// </summary> /// <param name="strFullName"></param> /// <returns></returns> private string GetFileNameStartString(string strFullName) { int posDot=_ImageFileName.LastIndexOf("."); int posSlash=_ImageFileName.LastIndexOf(@"\"); return _ImageFileName.Substring(posSlash+1,posDot-posSlash-1); } /// <summary> /// This function will output the image to a TIFF file with specific compression format /// </summary> /// <param name="outPutDirectory">The splited images' directory</param> /// <param name="format">The codec for compressing</param> /// <returns>splited file name array list</returns> public ArrayList SplitTiffImage(string outPutDirectory,EncoderValue format) { string fileStartString=outPutDirectory+"\\"+GetFileNameStartString(_ImageFileName); ArrayList splitedFileNames=new ArrayList(); try { Guid objGuid=image.FrameDimensionsList[0]; FrameDimension objDimension=new FrameDimension(objGuid); //Saves every frame as a separate file. Encoder enc=Encoder.Compression; int curFrame=0; for (int i=0;i<_PageNumber;i++) { image.SelectActiveFrame(objDimension,curFrame); EncoderParameters ep=new EncoderParameters(1); ep.Param[0]=new EncoderParameter(enc,(long)format); ImageCodecInfo info=GetEncoderInfo("image/tiff"); //Save the master bitmap string fileName=string.Format("{0}{1}.TIF",fileStartString,i.ToString()); image.Save(fileName,info,ep); splitedFileNames.Add(fileName); curFrame++; } } catch (Exception) { throw; } return splitedFileNames; } /// <summary> /// This function will join the TIFF file with a specific compression format /// </summary> /// <param name="imageFiles">string array with source image files</param> /// <param name="outFile">target TIFF file to be produced</param> /// <param name="compressEncoder">compression codec enum</param> public void JoinTiffImages(string[] imageFiles,string outFile,EncoderValue compressEncoder) { try { //If only one page in the collection, copy it directly to the target file. if (imageFiles.Length==1) { File.Copy(imageFiles[0],outFile,true); return; } //use the save encoder Encoder enc=Encoder.SaveFlag; EncoderParameters ep=new EncoderParameters(2); ep.Param[0]=new EncoderParameter(enc,(long)EncoderValue.MultiFrame); ep.Param[1] = new EncoderParameter(Encoder.Compression,(long)compressEncoder); Bitmap pages=null; int frame=0; ImageCodecInfo info=GetEncoderInfo("image/tiff"); foreach(string strImageFile in imageFiles) { if(frame==0) { pages=(Bitmap)Image.FromFile(strImageFile); //save the first frame pages.Save(outFile,info,ep); } else { //save the intermediate frames ep.Param[0]=new EncoderParameter(enc,(long)EncoderValue.FrameDimensionPage); Bitmap bm=(Bitmap)Image.FromFile(strImageFile); pages.SaveAdd(bm,ep); } if(frame==imageFiles.Length-1) { //flush and close. ep.Param[0]=new EncoderParameter(enc,(long)EncoderValue.Flush); pages.SaveAdd(ep); } frame++; } } catch (Exception) { throw; } return; } /// <summary> /// This function will join the TIFF file with a specific compression format /// </summary> /// <param name="imageFiles">array list with source image files</param> /// <param name="outFile">target TIFF file to be produced</param> /// <param name="compressEncoder">compression codec enum</param> public void JoinTiffImages(ArrayList imageFiles,string outFile,EncoderValue compressEncoder) { try { //If only one page in the collection, copy it directly to the target file. if (imageFiles.Count==1) { File.Copy((string)imageFiles[0],outFile,true); return; } //use the save encoder Encoder enc=Encoder.SaveFlag; EncoderParameters ep=new EncoderParameters(2); ep.Param[0]=new EncoderParameter(enc,(long)EncoderValue.MultiFrame); ep.Param[1] = new EncoderParameter(Encoder.Compression,(long)compressEncoder); Bitmap pages=null; int frame=0; ImageCodecInfo info=GetEncoderInfo("image/tiff"); foreach(string strImageFile in imageFiles) { if(frame==0) { pages=(Bitmap)Image.FromFile(strImageFile); //save the first frame pages.Save(outFile,info,ep); } else { //save the intermediate frames ep.Param[0]=new EncoderParameter(enc,(long)EncoderValue.FrameDimensionPage); Bitmap bm=(Bitmap)Image.FromFile(strImageFile); pages.SaveAdd(bm,ep); bm.Dispose(); } if(frame==imageFiles.Count-1) { //flush and close. ep.Param[0]=new EncoderParameter(enc,(long)EncoderValue.Flush); pages.SaveAdd(ep); } frame++; } } catch (Exception ex) { #if DEBUG Console.WriteLine(ex.Message); #endif throw; } return; } /// <summary> /// Remove a specific page within the image object and save the result to an output image file. /// </summary> /// <param name="pageNumber">page number to be removed</param> /// <param name="compressEncoder">compress encoder after operation</param> /// <param name="strFileName">filename to be outputed</param> /// <returns></</returns> public void RemoveAPage(int pageNumber,EncoderValue compressEncoder,string strFileName) { try { //Split the image files to single pages. ArrayList arrSplited=SplitTiffImage(this._TempWorkingDir,compressEncoder); //Remove the specific page from the collection string strPageRemove=string.Format("{0}\\{1}{2}.TIF",_TempWorkingDir,GetFileNameStartString(this._ImageFileName),pageNumber); arrSplited.Remove(strPageRemove); JoinTiffImages(arrSplited,strFileName,compressEncoder); } catch(Exception) { throw; } return; } /// <summary> /// Getting the supported codec info. /// </summary> /// <param name="mimeType">description of mime type</param> /// <returns>image codec info</returns> private ImageCodecInfo GetEncoderInfo(string mimeType) { ImageCodecInfo[] encoders=ImageCodecInfo.GetImageEncoders(); for (int j=0;j<encoders.Length;j++) { if (encoders[j].MimeType==mimeType) return encoders[j]; } throw new Exception( mimeType + " mime type not found in ImageCodecInfo" ); } /// <summary> /// Return the memory steam of a specific page /// </summary> /// <param name="pageNumber">page number to be extracted</param> /// <returns>image object</returns> public Image GetSpecificPage(int pageNumber) { MemoryStream ms=null; Image retImage=null; try { ms=new MemoryStream(); Guid objGuid=image.FrameDimensionsList[0]; FrameDimension objDimension=new FrameDimension(objGuid); image.SelectActiveFrame(objDimension,pageNumber); image.Save(ms,ImageFormat.Bmp); retImage=Image.FromStream(ms); return retImage; } catch (Exception) { ms.Close(); retImage.Dispose(); throw; } } /// <summary> /// Convert the existing TIFF to a different codec format /// </summary> /// <param name="compressEncoder"></param> /// <returns></returns> public void ConvertTiffFormat(string strNewImageFileName,EncoderValue compressEncoder) { //Split the image files to single pages. ArrayList arrSplited=SplitTiffImage(this._TempWorkingDir,compressEncoder); JoinTiffImages(arrSplited,strNewImageFileName,compressEncoder); return; } /// <summary> /// Image file to operate /// </summary> public string ImageFileName { get { return _ImageFileName; } set { _ImageFileName=value; } } /// <summary> /// Buffering directory /// </summary> public string TempWorkingDir { get { return _TempWorkingDir; } set { _TempWorkingDir=value; } } /// <summary> /// Image page number /// </summary> public int PageNumber { get { return _PageNumber; } } #region IDisposable Members public void Dispose() { image.Dispose(); System.GC.SuppressFinalize(this); } #endregion } Tag: Delphi 4 & VB.NET, don't play nice?? Tag: 101217
 - 11
 - Custom Class - Different Instances Hello, I have a custom component class that I created that will basically save x amount of "objects." Once x + 1 object pops in, the oldest one falls off. It works great as I have it. In my test web page I create a Static object and use the New to create a new instance of it. If I don't use the Static, nothing is remembered. The only problem is, when I start a second page, I expect it to have a NEW instance of the class but the numbers stored show up the same. How do I get it to always create a New instance. Am I missing the public, private, protected, internal - modifiers in the wrong position? Please help. - - - - - - - Class File: using System; using System.ComponentModel; using System.Collections; using System.Diagnostics; namespace NASQLStatements { public class ThingsRemembered : System.ComponentModel.Component { private System.ComponentModel.Container components = null; private int iThingsToRemember; protected internal ArrayList aThings; public ThingsRemembered(System.ComponentModel.IContainer container) { container.Add(this); InitializeComponent(); aThings = new ArrayList(2); } public ThingsRemembered() { InitializeComponent(); aThings = new ArrayList(2); } public ThingsRemembered(int iCapacity) { InitializeComponent(); aThings = new ArrayList(iCapacity); } public ThingsRemembered(System.ComponentModel.IContainer container, int iCapacity) { container.Add(this); InitializeComponent(); aThings = new ArrayList(iCapacity); } protected override void Dispose( bool disposing ) { if( disposing ) { if(components != null) { components.Dispose(); } } base.Dispose( disposing ); iThingsToRemember = 0; aThings.Clear(); // delete all items aThings.TrimToSize(); // resize the array to system default } #region Component Designer generated code private void InitializeComponent() { components = new System.ComponentModel.Container(); } #endregion public int ThingsToRemember { get { return iThingsToRemember; } set { iThingsToRemember = value; aThings.Capacity = iThingsToRemember; // size the array } // set } // ThingsToRemember - Property - Read/Write public bool AddAThing(object oThing) { try { if(aThings.Count == aThings.Capacity) { aThings.RemoveAt(0); // remove the oldest one } // if there are already the maximum number of items in the array aThings.Add(oThing); // add the new one return true; } catch(Exception e) { sLastError = e.ToString(); return false; } // try-catch errors } // AddAThing - Method public string LastError { get { return sLastError; } } // LastError - Property - Read Only public object LastThing() { return aThings[aThings.Count - 1]; } // LastThing - Method public object FirstThing() { return aThings[0]; } // FirstThing - Method public ArrayList AllThings { get { return aThings; } } // AllThings - Property - Read Only } } - - - - - - - Test File: using System; using System.Collections; using System.ComponentModel; using System.Data; using System.Drawing; using System.Web; using System.Web.SessionState; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.HtmlControls; using NASQLStatements; namespace TestThings { public class WebForm1 : System.Web.UI.Page { protected System.Web.UI.WebControls.Button cmndAddThing; protected System.Web.UI.WebControls.Button cmndShowThings; protected System.Web.UI.WebControls.Label lablThings; private static NASQLStatements.ThingsRemembered oStuff = new NASQLStatements.ThingsRemembered(); private void Page_Load(object sender, System.EventArgs e) { if(!Page.IsPostBack) { oStuff.ThingsToRemember = 5; lablThings.Text = oStuff.AllThings.Capacity.ToString() + " " + oStuff.AllThings.Count.ToString(); } // if this is the first time to the page } #region Web Form Designer generated code override protected void OnInit(EventArgs e) { InitializeComponent(); base.OnInit(e); } private void InitializeComponent() { this.cmndAddThing.Click += new System.EventHandler(this.cmndAddThing_Click); this.cmndShowThings.Click += new System.EventHandler(this.cmndShowThings_Click); this.cmndError.Click += new System.EventHandler(this.cmndError_Click); this.Load += new System.EventHandler(this.Page_Load); } #endregion private void cmndShowThings_Click(object sender, System.EventArgs e) { lablThings.Text = "" + oStuff.AllThings.Capacity.ToString() + " "; for(int iPos = oStuff.AllThings.Count - 1; iPos >= 0; iPos--) { lablThings.Text += oStuff.AllThings[iPos].ToString() + "<hr>"; } // for each item } private void cmndAddThing_Click(object sender, System.EventArgs e) { Random rRandom = new Random(DateTime.Now.Millisecond); int iValue = rRandom.Next(1, 1000); lablThings.Text += " " + oStuff.AddAThing(iValue).ToString(); } } } As you can see, in the Test file I declare the Class as private static and do a NEW. I assumed the New is necessary so it can create a New instance of it. If it take out the Static modifier, nothing works and no random numbers are stored. If I leave it in, it will remember the number (5) I have told it. But so will each new web page I bring up and point to that page. Please help. -- Thanx, Kevin Tag: Delphi 4 & VB.NET, don't play nice?? Tag: 101212
 - 12
 - COM exception Error after Installing windows 2003 service pack 1 Hi, I developed an ASP.NET Web application and 3rd party COM component is used in this application(Not using COM+, so component is not available in Component Services). This code was working fine before migrating to Windows 2003 SP1. But I am getting the following error after migrating to Windows 2003 SP1 when creating an COM component in ASP.NET (C# Web Services). However, it is working fine in C# application after migrating to Windows SP1. Thanks -Amar Tag: Delphi 4 & VB.NET, don't play nice?? Tag: 101210
 - 13
 - Passing Array using Reflection Hi , Can anybody help me why this code is failing? I am passing an array using reflection. using System; using System.Reflection; using System.Collections; namespace ReflectionTest { public class M { public void Method(string[] x) { Console.WriteLine(x[0]); //x ="Changed value"; } [STAThread] public static void Main() { Hashtable h = new Hashtable(); h.Add("ABC", "Initial value"); //Set initial value h.Add("BCD", "Second value"); //Set second value Type t = typeof(M); M m = (M)Activator.CreateInstance(t);//Create instance of M Type [] p = new Type[2]; p[0] = Type.GetType("System.String");//typeof(ref string) p[1] = Type.GetType("System.String");//typeof(ref string) MethodInfo mi = t.GetMethod("Method", p);//Get the method Object [] ps = {h["ABC"],h["BCD"]}; //Create param array mi.Invoke(m,ps); Console.WriteLine(h["ABC"]); //**output is "Initial value" Console.WriteLine(ps[0].ToString()); } } } Thanks in advance. - Vignesh Tag: Delphi 4 & VB.NET, don't play nice?? Tag: 101209
 - 14
 - using web pages in web custom control Hi, I want to use web pages(*.aspx) in web control.Can any one tell me how it is possible. Thanks in advance. Tag: Delphi 4 & VB.NET, don't play nice?? Tag: 101206
 - 15
 - DirectoryInfo.Getfiles does not return all files in folder I've got a little routine that relies on DirectroyInfo.GetFiles to return a list of all the files in a specified folder. The folder happens to contain well over 2800 XML files, yet DirectoryInfo.Getfiles is only returning 305 of them. This has totally stumped me and proving to be a show-stopper! Any ideas Tag: Delphi 4 & VB.NET, don't play nice?? Tag: 101205
 - 16
 - Check if mms:// or rtsp:// url exists (url not broken) Hello, I need to verify if mms:// or rtsp:// urls exists. I do like this for http:// : public static bool GetPage(String url) { try { // Creates an HttpWebRequest for the specified URL. HttpWebRequest myHttpWebRequest = (HttpWebRequest)WebRequest.Create(url); // Sends the HttpWebRequest and waits for a response. HttpWebResponse myHttpWebResponse = (HttpWebResponse)myHttpWebRequest.GetResponse(); if (myHttpWebResponse.StatusCode == HttpStatusCode.OK) return true; // Releases the resources of the response. myHttpWebResponse.Close(); } catch(WebException e) { Console.WriteLine("\r\nWebException Raised. The following error occured : {0}",e.Status); } catch(Exception e) { Console.WriteLine("\nThe following Exception was raised : {0}",e.Message); } return false; } If I replace mms:// by http:// , I can check the url. But the same code doesn't work for rtsp protocols. I apreciate any help to learn how to request a mms:// and rtsp:// file.(just need to check if the url is not broken) Thanks in advance for your help. *** Sent via Developersdex http://www.developersdex.com *** Tag: Delphi 4 & VB.NET, don't play nice?? Tag: 101201
 - 17
 - Finding out if an exception occurred in a finally block. (.NET 2.0) Hi. Since my situation is a little complex I have simplified it for this post. I start a database transaction. Do some work with it in a try-finally block, and in the finally block I dispose resources. I would like to in my finally block detect if we are leaving because of the code actually just leaving the block (normally or through a return statement) or an exception occurred. If we are leaving normally I want to commit the transaction, and if we are leaving because an exception is thrown, I want to abort the transaction. SqlConnection conn = CreateNewOpenConnection(...) try { SqlTransaction trans = conn.BeginTransaction() // do work } finally { if (exception occurred) trans.Rollback(); else trans.Commit(); trans.Dispose(); conn.Dispose(); } Is this possible. I'm using the .NET framework 2.0 Thanks in advance, Peter Strøiman Tag: Delphi 4 & VB.NET, don't play nice?? Tag: 101199
 - 18
 - Imports VS Namespace.Namespace2.Class1 Item #1: Project Reference > DLLClass1 Project Properties > Imports > Namespace.Namespace2 - In Code Behind: * Dim NewClass1 As New Class1 Item #2: Project Reference > DLLClass1 - In Code Behind: * Dim NewClass1 As New Namespace.Namespace2.Class1 * What will be better? Item #1 or #2?, Does MS have an article for this? (I need proof for this matter, about their performance, advantages and disadvantages.) Thanks in Advance! Tag: Delphi 4 & VB.NET, don't play nice?? Tag: 101191
 - 19
 - GC problem Hi, I am setting System.Threading.Thread.CurrentPrincipal to a Windows pricipal before I go ahead call methods to process, sometimes cross assembly. The problem I am facing is that intermittently the WindowsPrincipal object within seems to be garbage collected because I get "Handle is invalid" sometimes.I tried setting GC.KeepAlive (System.Threading.Thread.CurrentPrincipal) post setting the value in CurrentPrincipal variable. It did not help the cause. Is there something amiss in what I am doing here? Thanks in advance, Madhu Tag: Delphi 4 & VB.NET, don't play nice?? Tag: 101187
 - 20
 - system.runtime.interopservices.comexception Hi, My application was working fine on windows 2003 server. after installing Service pack 1, in my application COM component try to access a folder on c: and getting error "system.runtime.interopservices.comexception" Message = " The server throw an exceptions". Would appreciate any suggestions to resolve this issue. Tag: Delphi 4 & VB.NET, don't play nice?? Tag: 101186
 - 21
 - system.runtime.interopservices.comexception hi, I are getting an error while my .Net application try to creat a com object, This error getting after installation of windows 2003 service pack 1. The issue was not repeated after uninstalling the service pack 1. The error is "system.runtime.interopservices.comexception" and "server threw an error". Did anybody face this issue? Would appreciate any suggestions to resolve this issue. Tag: Delphi 4 & VB.NET, don't play nice?? Tag: 101185
 - 22
 - dotnetfx deployment program. Hi, I have an Install project which a service. I am using the setup.exe which checks for the presence of the framework and deploys it if it is missing so the install Project is set to . My install package has been working quite happily for some months on the Development machine. However it has now started giving the error message: 'MyService install Setup has failed. If the problem persists, please contact Product Support.' The msi package is OK because if I execute it directly it performs the installation OK. Looking inside setup.exe and dotnetfx.exe with a text editor shows that the message is present in dotnetfx.exe only. So I ran up another install which installs an application using the same setup.exe and dotnetfx.exe This went OK i.e. The setup stepped through to calling the msi file. So the only difference I can see is that the first project is installing a service while the second is installing an application. I restate that this was all working and has suddenly stopped. Has anybody struck anything similiar? thanks Bob Tag: Delphi 4 & VB.NET, don't play nice?? Tag: 101182
 - 23
 - Port .Net 1.0 application to Windows Server 2003 Hi, We have a complex application (C#, EnterpriseServices (COM+), MSMQ, etc). Application was developed with .Net Framework 1.0 and running on Windows 2000 with SP3. We need to port it to Windows 2003. By default, Windows 2003 has .Net Framework 1.1 installed. Initiall we were planning an application upgrade to 1.1. But later decided to try to install .Net Framework 1.0 on Windows 2003 server and try to port it the way it is now. Is it doable? I don't see why not. I was reading different sources and I didn't find any reasonings why not. Can you let me know, please. Second issue for the same problem: an applicaiton server, that is going to be running a COM+ components is like I said Windows 2003. I installed a component on it, extracted a proxy and installed that proxy to the test machine from which I tried to run a strip-down version of the same application (only test machine issies calls to the database thru COM= component.). I receive the following error message: The activation for CLSID {070CE8EA-70F6-4E7C-8E73-A902507E811F} failed because remote activations for COM+ are disabled. To enable this functionality use the Configure Your Server wizard and select the Web Application Server role. The application is desctop, no web interface. Why does it need to be configured for the Web Application Server role? Is it a Windows 2003 issue? We prepared the server just as we did before with Windows 2000. Any input is welcome. Tha nk you in advance. Tag: Delphi 4 & VB.NET, don't play nice?? Tag: 101180
 - 24
 - Getting Process ID of a created ActiveX object Hi, I'm using C# to create an AutoCAD object in this manner.. private AcadApplication acadApp; const string acad2004ProgID = "AutoCAD.Application.16"; acadApp = (AcadApplication)System.Runtime.InteropServices.Marshal.GetActiveObject(acad2004ProgID); and that works fine... now what I want to be able to do is get the Process ID of that autocad object so I can do things like Killing it or whatever using commands from System.Diagnostics Is there any way to obtain the Process ID of that autocad object without having to use any strange workarounds? Thanks, Himanshu Tag: Delphi 4 & VB.NET, don't play nice?? Tag: 101177
 - 25
 - N Tier Architecture ? Hi 1. I am in process of designing N-Tier Application using ASP.NET. Can anyone guide me the right material or microsoft guidelines document which I can used in designing the N-Tier application. 2. I would also like to know whether to use Web Services or .Net Remoting in designing N-Tier application 3. General 3 Tier architecture has 3 Tier : Presentation Layer , Business Layer and Database Layer How this 3 layers are seperated out in N-Tier architecture. Help would be very much appreciated. Thanks Silent Ocean Tag: Delphi 4 & VB.NET, don't play nice?? Tag: 101176
- Next
 - 1
 - DRAWIMAGE() -> TONS OF PAGE FAULTS! Originally, I thought this was due to DoubleBuffer, but ran some further experiments and discovered that page faults occur when calling DrawImage(). For example, create 2 images about 800x800, then call DrawImage to copy from to the other (on say a mouse click). Notice about 600+ page faults occur each time (the larger the area, the greater the number of page faults). I have an application that calls DrawImage() once a second to update the main screen, so after a few days, the page fault count is monsterous. I swear this bogs down my system too. Anyone else have this problem? Any solutions? Can someone report this as a DEFECT. Thanks, Steve Tag: Delphi 4 & VB.NET, don't play nice?? Tag: 101175
 - 2
 - How To: Custom Performance Counters with intervals other than 1 second? I want to implement a custom performance counter for monitoring errors in my application. However, the correct rate is not exceptions per second! (If my app is throwing multiple exceptions per second, then the last thing I need to be doing is writing custom performance counters!) I want to implement a counter that has a period of 1 hour. What is the right way (or best way) to do this? I figure out one way, but I had to implement all the code and not use any of the methods in the Diagnostics namespace (other than just setting the raw value of my counter). I don't think that is the right way to do it. Although all the framework code seems to assume periodicity of 1 sec, I have a feeling I should be able to use the framework methods and obtain rates per hour -- I just need some help figuring out the way to go about it. Thanks Tag: Delphi 4 & VB.NET, don't play nice?? Tag: 101174
 - 3
 - How to create a blind and dumb window? I need a topmost window that does not recive keyboard neither the mouse input and is never activated and never gets focus. What is the solution? Thanks JH Tag: Delphi 4 & VB.NET, don't play nice?? Tag: 101171
 - 4
 - HttpWebRequest and Multi Threaded apps Question Hi, Im in the process of writing a program that crawls a website. Im using the HttpWebRequest and HttpWebResponse classed to get content. To make my application more scalable, my application is multithreaded, with each thread making a different request. One problem Ive ran into is that when writing the response stream to the filesystem, from the HttpWebResponse.GetResponseStream() method, if the response is of a sufficient size, it blocks all other other executing threads. If this exceeds the timeout, then all the other threads that are in the process of making a Web Request time out. Ive taken every effort to ensure that my application is not locking, I was wondering if given the scenario that Ive listed, would using Asynchronous Web Requests be more efficient? Ive not worked with them before so Id be grateful of your opinions. Cheers, Mark Tag: Delphi 4 & VB.NET, don't play nice?? Tag: 101168
 - 5
 - reverse polymorphism Class A extends Control and creates a "new" Size property hiding Size from the Control class. A method M from another class (not related to A or Control) has a parameter of type Control. Question: If an A object is passed to M, is there a way to call Size from A instead of Size from Control ? Tag: Delphi 4 & VB.NET, don't play nice?? Tag: 101165
 - 6
 - Dynamically calling methods on an object Guys, I would like to dynamically add methods to a .NET object when calling through reflection / COM interop. I think the IExpando interface may be suited but can't find any documentation / samples on this. Any ideas or resources I can look at? Cheers Matt Tag: Delphi 4 & VB.NET, don't play nice?? Tag: 101162
 - 7
 - Convert BinaryString into int? Hello, I have some binarystrings in the registry (from an older j++ app) that I need to convert at runtime to ints. What is the best practice for this? In J++ you could just call Integer.ParseInt(val, 2); I've tried Convert.ToUInt32(object, int) but I can't get the compiler to believe that is a valid overload; it keeps complaining that it can't convert an int to an IFormatProvider, which is a different overload. Is that convert function broken? Is there another way to do this or am I just screwed? Keith Tag: Delphi 4 & VB.NET, don't play nice?? Tag: 101160
 - 8
 - Issue with MMC in VS.NET Dear all, I am facing a frustrating problem in trying to make sense of an existing MMC Snapin developed using Visual Studio .NET by You-Know-Who. Well, the project type for the Snapin is a Class Library. Once I build the solution from visual Studio .NET, the solution consisting of the Class Library and the Packager, will churn out a .MSC file.. All this is working fine.. I am supposed to enhance this project and I must add that I have no prior experience in developing or debugging MMC Snapins in .NET. Since I have not developed this project, I have really no clue as to how to go about getting into a debug environment for this project. Can anyone please help?? An attempt to debug would say that the project is of class library type and therefore cannot be debugged directly.... I need to be able to debug to make sense of how this one works... Any help would be really appreciated.. Thanks and regards, Varkey Tag: Delphi 4 & VB.NET, don't play nice?? Tag: 101154
 - 9
 - Java Null VS .NET Null In Java, creating a class that represents a tuple in a database is relatively simple because if you have a field for, lets say, "Quantity" that is an integer, you can set it to null. Since .NET uses a stack for these Value Types, the integer (Int32) has an initial value of 0 and you can't set it to null. So, what's the best way to approach this without having to jump through a bunch of programmatic hoops? These are a couple of ways I've though of. 1) Create a constant that represents a null Int32, et and use that value (problem: you'd have to constantly check that value if you're doing calculations) 2) Make all of your properties be objects. That way you could set the property to an integer, or a null (or DBNull.Value). (problem: performance hit from boxing and potential errors when doing calculations) 3) Have a property for the field and then have an ancillary property names "FieldXIsNull" (problem: classes get bulky and you end up having to check the IsNull constantly) So, what are the best ways to approach this? Side Note, I'd like to stay away from using datasets because they're big memory hogs. If I can have a class that I can instantiate that keeps track of real values, I'll get better memory usage. As far as the overhead of coding all of these classes, I can use/create code generators for that. Tag: Delphi 4 & VB.NET, don't play nice?? Tag: 101152
 - 10
 - MyClass2 = MyClass1 -> ByRef???? Hi, I have 2 instances of a user-defined class. When I do a cls2 = cls1, and I change a property of cls2, this property is also changed in my cls1!! Does anybody know what the reason of this is? and how I can prevent it? Thanks, Pieter I'm using VB.NET 2003. This is my sample code: Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Dim cls1 As New clsMyClass Dim cls2 As clsMyClass cls2 = Nothing cls2 = cls1 MessageBox.Show(cls1.Icon Is Nothing) Dim bmp As New Bitmap(20, 20, Imaging.PixelFormat.Format32bppPArgb) cls2.Icon = bmp MessageBox.Show(cls1.Icon Is Nothing) End Sub Public Class clsMyClass Private m_Icon As Bitmap Public Property Icon() As Bitmap Get Return m_Icon End Get Set(ByVal Value As Bitmap) m_Icon = Value End Set End Property End Class Tag: Delphi 4 & VB.NET, don't play nice?? Tag: 101145
 - 11
 - Port .Net 1.0 application to Windows Server 2003 Hi, We have a complex application (C#, EnterpriseServices (COM+), MSMQ, etc). Application was developed with .Net Framework 1.0 and running on Windows 2000 with SP3. We need to port it to Windows 2003. By default, Windows 2003 has .Net Framework 1.1 installed. Initiall we were planning an application upgrade to 1.1. But later decided to try to install .Net Framework 1.0 on Windows 2003 server and try to port it the way it is now. Is it doable? I don't see why not. I was reading different sources and I didn't find any reasonings why not. Can you let me know, please. Second issue for the same problem: an applicaiton server, that is going to be running a COM+ components is like I said Windows 2003. I installed a component on it, extracted a proxy and installed that proxy to the test machine from which I tried to run a strip-down version of the same application (only test machine issies calls to the database thru COM= component.). I receive the following error message: The activation for CLSID {070CE8EA-70F6-4E7C-8E73-A902507E811F} failed because remote activations for COM+ are disabled. To enable this functionality use the Configure Your Server wizard and select the Web Application Server role. The application is desctop, no web interface. Why does it need to be configured for the Web Application Server role? Is it a Windows 2003 issue? We prepared the server just as we did before with Windows 2000. Any input is welcome. Tha nk you in advance. Tag: Delphi 4 & VB.NET, don't play nice?? Tag: 101139
 - 12
 - How to Learn .net and vb.net i want to learn .net and vb.net in a propare steps, How to proceed in this. If you can provide learning steps for .net it will be really helpful for me Thanks in advance Venkat Tag: Delphi 4 & VB.NET, don't play nice?? Tag: 101134
 - 13
 - Why is the ArrayList IEnumerator so much slower than it's IList in From the tests that I have done it appears the ArrayList IEnumerator is about three times slower than using it's IList indexer. I would think they should be roughly the same. Is there a reason they're not? -- Thanks, Nick Tag: Delphi 4 & VB.NET, don't play nice?? Tag: 101133
 - 14
 - Icon problem I'm developping an apps which would manage 2 file type (I could foresee so far). I would like to provide each of them with its icon. Now, in the "Good Old Win32 days" (which I never practice ;-) I could just embed Icon resource in my app, with a negative index, and register with windows shell API my file extension and icon index in my exe file. Now the question is... how could I do that in .NET? It looks like I will have only one icon possible, the app icon :-( -- If you're in a war, instead of throwing a hand grenade at the enemy, throw one of those small pumpkins. Maybe it'll make everyone think how stupid war is, and while they are thinking, you can throw a real grenade at them. Jack Handey. Tag: Delphi 4 & VB.NET, don't play nice?? Tag: 101132
 - 15
 - Socket.BeginConnect timeout Is there any way to abort a connection attempt after a few seconds if it does not succeed? When I call the BeginConnect method, if the remote endpoint does not exist, it waits something like 20 seconds before returning an exception. Somehow I would like to start a timer when the BeginConnect method is called, and if it elapses before the connection is established, to abort the pool thread that is executing the callback. How can I do this? Clark Tag: Delphi 4 & VB.NET, don't play nice?? Tag: 101131
 - 16
 - Versions of .NET runtime Hello, I've installed the .NET framework v2.0 beta 2 on my computer, but when I try to install SharpDevelop or other softwares, I still get a message "You must have .NET framework v1.1" ... Does someone know why ? Can't the 2.0 runtime execute 1.1 apps ? Thank you :) Olivier -- Ceci est une signature automatique de MesNews. Site : http://mesnews.no-ip.com Tag: Delphi 4 & VB.NET, don't play nice?? Tag: 101127
 - 17
 - .NET Framework 1.1 Service Pack 2 Hi, Can someone tell me when .NET Framework 1.1 Service Pack 2 will be available? Cheers. Tag: Delphi 4 & VB.NET, don't play nice?? Tag: 101125
 - 18
 - customer experience improvement program -- how to get rid of it? Hi, I recently installed dotnet 2.0 beta 2 Framework SDK and it has installed the "visual studio customer experience improvement program" which sits, as an icon, on my taskbar (near the clock, I forget what that part of the taskbar is called). I've clicked 'no I don't want to participate' but the icon remains. How do I get rid of it, is there a service to switch off?, and how do I stop it reloading again. Thanks, MS Tag: Delphi 4 & VB.NET, don't play nice?? Tag: 101123
 - 19
 - Get image (BMP) of any visible window? Hello all, I was wondering if it was possible to get a snapshot of any currently visible window running in Windows? In other words, if I have Notepad running, given a window's title (e.g. "Notepad") , can I get an image (BMP, GIF, etc) of Notepad's window? Any pointers as to how this may be done would be greatly appreciated. Thanks in advance. Cheers, Diego Tag: Delphi 4 & VB.NET, don't play nice?? Tag: 101118
 - 20
 - Common menu system for all forms Hi all, Need urgently, I am doing a pocket pc application in vb.net and sql server. In the pocket pc application there are three forms . form1, form2 , form3. The menu is on form1 and when you click the menu item on form1 form 2 is opened on form1 with menu at bottom of form2 . that is overlapping form1 and form2 . This logic is working . The is code i am using in form1 to open form2 on form1. form2 = New form2 Me.Controls.Add(Me.form2 ) form2 .BringToFront() form2 .Visible = True There is a button in form2 when we click on that it opens form3 but it should open on form1 . That is overlapping form3 and form1 . I mean a common menu system for all the forms. How to write code in form2 for form3 to open on form1. Tag: Delphi 4 & VB.NET, don't play nice?? Tag: 101106
 - 21
 - Trace I can't seem to get Trace to write to a file unless I explicitly call Trace.Close() at the end of my app. My log files don't flush until I close this. Is there a way to view the trace output files during application running without needing to call Trace.Close()? Or does it auto-flush after a certain threshold is reached? Tag: Delphi 4 & VB.NET, don't play nice?? Tag: 101104
 - 22
 - asp to asp.net input string error Welcome back amitbadgi | Logout | Faq Knowledge Discovery Keys COMPUTER PROGRAMMING, DATA MINING, STATISTICS, ARTIFICIAL INTELLIGENCE * Settings * Photos * Lists * MVPs * Forums * Blogs * Home ASP.NET Started by amitbadgi at 08-09-2005 22:07. Topic has 0 replies. Knowledge Disc... =BB NET Framework, ... =BB ASP.NET =BB asp to asp.net input string error Print Search Search Disable E-mail Replies Sort Posts: Yesterday, 22:07 amitbadgi is not online. Last active: 8/2/2005 3:47:26 PM amitbadgi Top 50 Posts Joined on 06-16-2005 Bronze Member asp to asp.net input string error Thread Status: Reply Quote While converting an asp to asp.net i am getting teh foll error, Exception Details: System.FormatException: Input string was not in a correct format. Source Error: Line 188: do until rs_user.eof Line 189: 'if (IsDBNull(current_dept.Value) <> true) then Line 190: if (current_dept <> rs_user.Fields.Item("department").value)then Line 191: response.Write("<tr><td colspan=3D""7""> " & (rs_user.Fields.Item("deptname").Value) & "</td></tr>")Line 192: current_dept =3D (rs_user.Fields.Item("department").Value) Source File: C:\Documents and Settings\amit\WebSite1\list_users.aspx Line: 190 Stack Trace: [FormatException: Input string was not in a correct format.] Microsoft.VisualBasic.CompilerServices.Conversions.ParseDouble(String Value, NumberFormatInfo NumberFormat) +211 Microsoft.VisualBasic.CompilerServices.Conversions.ToDouble(String Value, NumberFormatInfo NumberFormat) +74[InvalidCastException: Conversion from string "" to type 'Double' is not valid.] Microsoft.VisualBasic.CompilerServices.Conversions.ToDouble(String Value, NumberFormatInfo NumberFormat) +218 Microsoft.VisualBasic.CompilerServices.Operators.CompareObject2(Object Left, Object Right, Boolean TextCompare) +3020 Microsoft.VisualBasic.CompilerServices.Operators.ConditionalCompareObjectNo= tEqual(Object Left, Object Right, Boolean TextCompare) +25 ASP.list_users_aspx.__Render__control1(HtmlTextWriter __w, Control parameterContainer) in C:\Documents and Settings\amit\WebSite1\list_users.aspx:190 System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +98 System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +20 System.Web.UI.Page.Render(HtmlTextWriter writer) +27 System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +53 System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +280 System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +24 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +8878 =20 Thankyou Tag: Delphi 4 & VB.NET, don't play nice?? Tag: 101102
 - 23
 - asp to asp.net operation not allowed when object is closed Hello guys I am getting this error while converting an asp applicayion to asp.net Exception Details: System.Runtime.InteropServices.COMException: Operation is not allowed when the object is closed. Source Error: Line 168: rs = Server.CreateObject("ADODB.recordset")Line 169: Line 170: If Not rs.EOF ThenLine 171: ' If Not rs.EOFLine 172: Do While Not rs.EOF Source File: C:\Documents and Settings\amit\WebSite1\reports\default.aspx Line: 170 Stack Trace: [COMException (0x800a0e78): Operation is not allowed when the object is closed.] Microsoft.VisualBasic.CompilerServices.LateBinding.LateGet(Object o, Type objType, String name, Object[] args, String[] paramnames, Boolean[] CopyBack) +965 Microsoft.VisualBasic.CompilerServices.NewLateBinding.LateGet(Object Instance, Type Type, String MemberName, Object[] Arguments, String[] ArgumentNames, Type[] TypeArguments, Boolean[] CopyBack) +193727 ASP.default_aspx.__Render__control1(HtmlTextWriter __w, Control parameterContainer) in C:\Documents and Settings\amit\WebSite1\reports\default.aspx:170 System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +98 System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +20 System.Web.UI.Page.Render(HtmlTextWriter writer) +27 System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +53 System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +280 System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +24 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +8878 Thanks in advance, -------------------------------------------------------------------------------- Tag: Delphi 4 & VB.NET, don't play nice?? Tag: 101101
 - 24
 - asp to asp.net syntax error I am gettign this error while converting an asp application to asp.net , its a query syntax error, Exception Details: System.Runtime.InteropServices.COMException: Syntax error in query expression 'id =System.__ComObject'. Source Error: Line 191: counter = 1Line 192: for i = 0 to ubound(emaillist)Line 193: rs_email = conn.execute("select * from tblusers where id =" & emaillist(i))Line 194: tolist = tolist & rs_email("email") & ";"Line 195: Source File: C:\Documents and Settings\amit\WebSite1\email_form.aspx Line: 193 Stack Trace: [COMException (0x80040e14): Syntax error in query expression 'id =System.__ComObject'.] Microsoft.VisualBasic.CompilerServices.LateBinding.LateGet(Object o, Type objType, String name, Object[] args, String[] paramnames, Boolean[] CopyBack) +973 Microsoft.VisualBasic.CompilerServices.NewLateBinding.LateGet(Object Instance, Type Type, String MemberName, Object[] Arguments, String[] ArgumentNames, Type[] TypeArguments, Boolean[] CopyBack) +153 ASP.email_form_aspx.__Render__control1(HtmlTextWriter __w, Control parameterContainer) in C:\Documents and Settings\amit\WebSite1\email_form.aspx:193 System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +98 System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +20 System.Web.UI.Page.Render(HtmlTextWriter writer) +27 System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +53 System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +280 System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +24 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +8879 Tag: Delphi 4 & VB.NET, don't play nice?? Tag: 101100
 - 25
 - data type mismatch error I am getting the following error while converting an asp application to asp.net Exception Details: System.Runtime.InteropServices.COMException: Data type mismatch in criteria expression. Source Error: Line 233: Line 234: rs = Server.CreateObject("ADODB.recordset") Line 235: rs.open(" Select * From tblEvent WHERE date_of_event = '" & currenttime & " ' ", conn, 1, 3) Line 236: 'response.Write(sql1) Line 237: Source File: C:\Documents and Settings\amit\WebSite1\calendar.aspx Line: 235 Stack Trace: [COMException (0x80040e07): Data type mismatch in criteria expression.] Microsoft.VisualBasic.CompilerServices.LateBinding.InternalLateCall(Object o, Type objType, String name, Object[] args, String[] paramnames, Boolean[] CopyBack, Boolean IgnoreReturn) +776 Microsoft.VisualBasic.CompilerServices.NewLateBinding.LateCall(Object Instance, Type Type, String MemberName, Object[] Arguments, String[] ArgumentNames, Type[] TypeArguments, Boolean[] CopyBack, Boolean IgnoreReturn) +193987 ASP.calendar_aspx.__Render__control1(HtmlTextWriter __w, Control parameterContainer) in C:\Documents and Settings\amit\WebSite1\calendar.aspx:235 System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +98 System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +20 System.Web.UI.Page.Render(HtmlTextWriter writer) +27 System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +53 System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +280 System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +24 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +8878 Tag: Delphi 4 & VB.NET, don't play nice?? Tag: 101099

Hello all, Im stumpped.

I have a small app i wrote in VB.NET which takes in a file name, and a bunch
of other params, runs the file with the params, and then exits.
At the end of the program, it can optionally echo back all the params it
received in a msgbox.

When the app is run from a command-line, it works beautifully. The report
runs, then when you close it, the msgbox pops up with the params that were
passed into my launcher program.
HOWever.... we have another application, written in Delphi 4, which attempts
to run the same command line as we tried running manually. When it is run
from the Delphi app, the msgbox with the params never pops up. The Delphi
app is shelling out to my app using the delphi command WinExec().

Is there some weird interaction between Delphi 4 and VB.NET or the .NET
framework in general, that would prevent this msgbox from showing up???
Im truly stumpped, and really need to figure a way to get around this.

Thanks in advance,
- Arthur Dent.

Top

Re: Delphi 4 & VB.NET, don't play nice?? by Rick

Rick
Thu Aug 11 16:46:49 CDT 2005

I would guess that looking in the Delphi newsgroups would be more helpful.

"Arthur Dent" <hitchhikersguideto-news@yahoo.com> wrote in message
news:%237y8aQqnFHA.3656@TK2MSFTNGP09.phx.gbl...
> Hello all, Im stumpped.
>
> I have a small app i wrote in VB.NET which takes in a file name, and a
> bunch of other params, runs the file with the params, and then exits.
> At the end of the program, it can optionally echo back all the params it
> received in a msgbox.
>
> When the app is run from a command-line, it works beautifully. The report
> runs, then when you close it, the msgbox pops up with the params that were
> passed into my launcher program.
> HOWever.... we have another application, written in Delphi 4, which
> attempts to run the same command line as we tried running manually. When
> it is run from the Delphi app, the msgbox with the params never pops up.
> The Delphi app is shelling out to my app using the delphi command
> WinExec().
>
> Is there some weird interaction between Delphi 4 and VB.NET or the .NET
> framework in general, that would prevent this msgbox from showing up???
> Im truly stumpped, and really need to figure a way to get around this.
>
> Thanks in advance,
> - Arthur Dent.
>

Top