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- Previous
  - 1
    - Connection delay after upgrade to .NET 1.1 When making a socket connection to a server from a client using the new .NET Framework version 1.1 in a Web Application, we are getting a severe delay in the granting of the socket connection. We did not get this using the previous version of .NET (1.0...). The delay is between 1 and several minutes long. Finally, after the delay, the socket connection is made with no abnormal messages. Then, as long as that IE remains up, we can dis-connect and re-connect as many times as we want with no delays at all. Any and all comments would be greatly appreciated. Tag: Bringing back previous instance Tag: 54020
  - 2
    - Getting Started on .NET I have an experience of more than 2 yrs on VB6.0 & ASP2.0. I would like to know how do I get myself started on the .NET platform. Are there any books that I may need to refer? Also, do I need to learn all the three languages- C#, ASP.NET & VB.NET right away? Tag: Bringing back previous instance Tag: 54018
  - 3
    - HttpWebRequest, transfer-encoding? I need to post some data to a server. As I understand it (which is not to say I do understand it) I should be able to include a "transfer-encoding:" header of say- gzip, then gzip my content before posting. Since it is a transfer-encoding, I assume any half decent web server should be able to automatically ungzip it before passing it on to whatever app needs to handle it. Is this assumption correct? If so, does .NET support gzip transfer encoding or do I need an external library, program, etc. If external is necessary, where should I look. Regards, Erin -=Universal Subscriber=- Tag: Bringing back previous instance Tag: 54013
  - 4
    - Why does Microsoft have such a hard time understanding what they say? You know there is a difference between the Microsoft .NET Framework and the Microsoft .NET Framework SDK. Besides the fact that the former is 20 some MB and the latter is some 100MB there is a difference you know. But not according to this page: http://support.microsoft.com/?scid=kb;en-us;306160 This command near the bottom: N:\dotnetframework\dotnetfx.exe /t:c:\temp /c:"msiexec.exe /i c:\temp\netfx.msi REINSTALL=ALL ReinstallMODE=vomus" has not a damn thing to do with the Microsoft .NET Framework SDK. This is a reinstallation of the Microsoft .NET Framework which is NOT the Microsoft .NET Framework SDK as the title of this article says. To me this is like the misunderstanding of Microsoft Outlook and Microsoft Outlook Express. Why does Microsoft have such a hard time understanding what they say? And finally is there a repair for the Microsoft .NET Framework SDK not to be confused with the Microsoft .NET Framework? Thanks. -- George Hester __________________________________ Tag: Bringing back previous instance Tag: 54012
  - 5
    - .Net Framework and Sharepoint Server I was just wondering if .Net Framework would interfere with stuff in a Sharepoint Server? Because in our IIS server, we are getting a 404 on a smart client app that we are trying to deploy. We tried 3 other IIS servers (development), and it seemed to work. It is just that one server (Release) which gives us a 404. Any Ideas? Thanks. Tag: Bringing back previous instance Tag: 54011
  - 6
    - HRESULT 80004005 Event Type: Error Event Source: ASP.NET 1.0.3705.0 Event Category: None Event ID: 1082 Date: 8/11/2003 Time: 9:50:10 AM User: N/A Computer: MyComputer Description: aspnet_wp.exe could not be started. HRESULT for the failure: 80004005 The .NET Framework has been just fine for months. I tried installing and using one of the Fabrikam Office XP solutions. They worked (didn't actually) poorly and so tried to remove them. Now this is the condition of my Framework. I've tried uninstalling and reinstalling and uninstalling and reinstalling and uninstalling and reinstalling and uninstalling and reinstalling and uninstalling and reinstalling and uninstalling and reinstalling and uninstalling and reinstalling and uninstalling and reinstalling and uninstalling and reinstalling and uninstalling and reinstalling and uninstalling and reinstalling and uninstalling and reinstalling and uninstalling and reinstalling and uninstalling and reinstalling and no go. Any ideas? http://support.microsoft.com/default.aspx?scid=kb;en-us;306518 -- George Hester __________________________________ Tag: Bringing back previous instance Tag: 54006
  - 7
    - Screen capture? Under VB6, it was fairly straightforward to get a screenshot. For instance, the following code: Public Function ScreenshotBits(hWnd As Long, Optional compress As Boolean = True) As Byte() Dim bitmap_info As BITMAPINFO Dim pixels() As Byte Dim Size As Long Dim dc As Long dc = GetDC(hWnd) Dim memDC As Long memDC = CreateCompatibleDC(dc) Dim r As RECT GetClientRect hWnd, r ' Prepare the bitmap description. With bitmap_info.bmiHeader .biSize = 40 .biWidth = r.Right - r.Left ' Use negative height to scan top-down. .biHeight = r.Top - r.Bottom .biPlanes = 1 .biBitCount = 32 .biCompression = BI_RGB End With Dim bm As Long Dim ptr As Long bm = CreateDIBSection(dc, bitmap_info, DIB_PAL_COLORS, ptr, 0, 0) Dim oldbm As Long oldbm = SelectObject(memDC, bm) BitBlt memDC, 0, 0, r.Right - r.Left, r.Bottom - r.Top, dc, 0, 0, SRCCOPY ' Copy the bitmap's data. Size = (r.Right - r.Left) * (r.Bottom - r.Top) * 4 ReDim pixels(0 To Size - 1) GetDIBits dc, bm, 0, r.Bottom - r.Top, pixels(0), bitmap_info, DIB_PAL_COLORS If compress Then Dim z As New clsZLib z.CompressByte pixels End If SelectObject memDC, oldbm DeleteObject memDC DeleteObject bm ScreenshotBits = pixels End Function How do I duplicate this functionality in VB.NET? That is, I could import all the API calls and do almost the exact same code, but the .NET framwork abstracts tons of things that were previously the realm of API calls. Is there a .NET way to do this? ~BenDilts( void ); Tag: Bringing back previous instance Tag: 54003
  - 8
    - MDI + KEY DOWN EVEN problem Hi, I am working with MDI form in .NET, In a child form i am unable to move the cursor to previous control using the Shift + Tab combination in Keycode Event procedure. Even i set the tabStop property to false for all controls. It is working fine when it shows as a normal form (Non MDI). The problem occurded only when it shows as a MDI child. Kindly let me the problem Regards, GOVIND. Tag: Bringing back previous instance Tag: 53992
  - 9
    - How do I write to a private folder? Hi all, I am trying to write a stand alone C# Console program with .NET framework. The program will create a folder in a existing folder. The existing folder is set with "Make this folder private" and "Encrypt contents to secure data". I tried LogonUser, Impersonate, AddPermission to PermissionSet but none of them work. The error is "Access to ... is denied" eventhough I run the program in the same account that I used to create the folder. I dont have any problem to create to any other folders without the private and encrypt setting. I am using Windows XP, NTFS and the existing folder is created in user profile directory. Please help. TIA Hung Nguyen Tag: Bringing back previous instance Tag: 53989
  - 10
    - documents of MSIL & CLR? Hi, I am a C# developer and want to study deeply about the .NET internals, MSIL and CLR. Where can I find reference documents about them? For example, reference to all operation instructions of intermediate language, and file organization of a .NET assembler. I believe there should be documents about those areas, but could not find them in my MSDN Library(July 2k3) Very thanks, weixiang Tag: Bringing back previous instance Tag: 53981
  - 11
    - "Automation server cannot create Object" Hi, I get a error when i open or create a new project in .Net. "Automation server Cannot create Object". What's the reason and how do i rectify it. Thanks Jayant Tag: Bringing back previous instance Tag: 53977
  - 12
    - Multiple Debugging sessions Hi, I was wondering if it is possible to have multiple debugging sessions? When I try to have someone else run another session I get an error message: Error while trying to run project: Unable to start debugging on the web server. A debugger is already attached. Would you like to disable future attempts to debug ASP.NET pages for this project? We are running .dot framework version 1 and using Visual Studio 2002. Has anyone got any ideas or done this. Cheers, Russell Tag: Bringing back previous instance Tag: 53974
  - 13
    - reflection - discover control's properties. Hi. I would like to be able to iterate recursively through a web page, and for every control on the page, chech if it has "CssClass" property and to be able to change it. How can this be done? Thanks Roy Tag: Bringing back previous instance Tag: 53971
  - 14
    - JIT For those of you coding windows Application under the framework you must noticed that forms take a performance hit loading the first time. This is because of JIT, I was able to fix this behavior by using ngen.exe, but then I don't get the same optimization JIT gives me and it is a headache for installations (negen has to be called right after the installation). According to Microsoft, a function gets JIT to native code the first time it is accessed. Is it possible to tell the framework to JIT certain functions at runtime without actually calling the functions? Basically, I would like to pre-JIT some of my functions so they don't experience a performance hit the first time they are called. Is this possible? Tag: Bringing back previous instance Tag: 53963
  - 15
    - GetLastError Hi, I'm quite new to the .net framework and try to port some old code to csharp. In my code I have a call to a Win32 API function which returns error information by setting the last Win32 error code. I found a GetLastWin32Error() in the Marshal class which seems to do what GetLastError() did. Can anyone tell me how to get a string from the returned error code? In Win32 API code I used FormatMessage(), in Delphi SysErrorMessage(). Anything similar in the .net class library? thanks, Nick Tag: Bringing back previous instance Tag: 53962
  - 16
    - Installation of Visual Studio Addin Hello, I'm actually trying to develop an ASP Parser addin for Visual Studio, and have some problem deploying it. When i try to deploy it on a machine where i didn't compile the project the addin fails to load when visual studio loads. There is an error and it proposes to uninstall the addin. When i scanned the registry while compiling or installing i remarked that the registry was modified only at compil time. So perhaps these registry settings(COM settings), are missing on target machine. Any idea, anyone? Tag: Bringing back previous instance Tag: 53961
  - 17
    - Hosting as assembly in IE Hi, It is said that an assembly host can be 1.Shell, 2. ASP.NET(IIS) and 3.IE brower. I'm familiar with 1 and 2. Can sb tell me HOW TO.., for case 3 with possibly few examples ? TIA Kishore Tag: Bringing back previous instance Tag: 53959
  - 18
    - sockets and proxy Settings Hi, I am writing a client in C# which uses the system.net.sockets namespace and the scoket class to connect toa remote server. I would like this client to work on machines that use a proxy server to connect to the internet. How do i advice the socket about what proxy settings to use? Thanks/Regards Sanket Gupta Sanket Gupta F-26/112/7 Rohini Delhi-110085 India sanket@tsucorp.net tel: mobile: 91-11-27931935 91-9810197671 Powered by Plaxo Want a signature like this? Tag: Bringing back previous instance Tag: 53957
  - 19
    - HttpWebRequest question All, How can I determine at runtime if a URL I'm going to requires a client cert. The only thing I am able to get is the 403 Forbidden? Erin Tag: Bringing back previous instance Tag: 53955
  - 20
    - ICertificatePolicy question. All, I've implemented a class that inherits the ICertificatePolicy interface. I then set ServicePointManager.CertificatePolicy = this. In my CheckValidationResult(), I log server cert info and return true. Now say for example, the CN name on the server cert does not match the site name, my CheckValidationResult() function is called. After returning true, if I go to the same site- my CheckValidationResult() is not called again. I assume because I returned true, and it has cached that information. My question is can I change this behavior so it will always call my CheckValidationResult() on each new request, if there is a cert problem? I've checked ServicePointManger and ServicePoint but do not see any method that would clear, flush, reset, etc. this information. Regards Erin. Tag: Bringing back previous instance Tag: 53954
  - 21
    - XML Text Reader/Writer and Boolean When I write out a boolean with the text writer, it writes out 'False'. When I try and read it in, using XmlConvert.ToBoolean, it errors out because it is expecting 'false' (all lower case). Is this a known bug? Thanks Tag: Bringing back previous instance Tag: 53950
  - 22
    - asp.net on xp home Hi, I want to install and learn the ASP.Net starter kits. I have Windows XP machine and Visual Studio 2002. Is it possible? Thanks... Tag: Bringing back previous instance Tag: 53948
  - 23
    - Use Class Library in Unmanaged Code I have created a class library by C#. Then I want to use it in MFC / Win32 program. This is my class public interface IShowDialog { string Caption { set; } void ShowDialogOut(); } public class ShowDialog : IShowDialog { private string _strCaption; public ShowDialog() { } public string Caption { set { _strCaption = value; } } public void ShowDialogOut() { System.Windows.Forms.MessageBox.Show(_strCaption); } } The following is the code in the client. ATL::CComPtr<ShowDialogLib::IShowDialog> pShowDialog; HRESULT hr = pShowDialog.CoCreateInstance(L"ShowDialogLib.ShowDialog"); if (FAILED(hr)) AfxMessageBox("Error in Loading ShowDialogLib.dll"); else { pShowDialog->put_Caption(L"Hello World"); pShowDialog->ShowDialogOut(); pShowDialog.Release(); } My question is when I use pShowDialog->put_Caption(L"Hello World"), the message box will show nothing. But if I use CString str = "Hello World"; pShowDialog->put_Caption(str.AllocSysString()); The message box can show the text "Hello World". I want to know why does it behave like that? -- My C++ and C# ( Traditional Chinese ) Web Site : www.franzwong.com Tag: Bringing back previous instance Tag: 53945
  - 24
    - programming under version1 and running under version 1.1 or 2 if I code using Visual Studio (2002) using framework v1.0 then upload to my host server that is running version2 of the framework could I expect any problems in running the application or would it work OK John Tag: Bringing back previous instance Tag: 53944
  - 25
    - UML for .NET developers There are some great free tutorials for .NET developers on UML at http://www.objectmonkey.com, plus loads of other useful free tutorials and papers on everything from Test-driven Development to UI design patterns. Tag: Bringing back previous instance Tag: 53938
- Next
  - 1
    - Ways to create ADOBE PDF files on-the-fly Hello Folks, To the point at hand: Does the DotNetFramework library have a function to allow my program to create ADOBE Pdf files without using interop? What are the things I need to create PDF files in DotNet? Thanks a many! Anonieko Tag: Bringing back previous instance Tag: 53908
  - 2
    - Event and Delegate Hello, i am just a newbie! i don't understand the statement theClock.OnSecondChange += new Clock.SecondChangeHandler (TimeHasChanged); what is the statement doing ? And also, why should we "subscribe" "dc" and "lct" before running the clock? THANKS! namespace Programming_CSharp { using System; using System.Threading; // a class to hold the information about the event // in this case it will hold only information // available in the clock class, but could hold // additional state information public class TimeInfoEventArgs : EventArgs { public TimeInfoEventArgs(int hour, int minute, int second) { this.hour = hour; this.minute = minute; this.second = second; } public readonly int hour; public readonly int minute; public readonly int second; } // our subject -- it is this class that other classes // will observe. This class publishes one event: // OnSecondChange. The observers subscribe to that event public class Clock { // the delegate the subscribers must implement public delegate void SecondChangeHandler ( object clock, TimeInfoEventArgs timeInformation ); // the event we publish public event SecondChangeHandler OnSecondChange; // set the clock running // it will raise an event for each new second public void Run( ) { for(;;) { // sleep 10 milliseconds Thread.Sleep(10); // get the current time System.DateTime dt = System.DateTime.Now; // if the second has changed // notify the subscribers if (dt.Second != second) { // create the TimeInfoEventArgs object // to pass to the subscriber TimeInfoEventArgs timeInformation = new TimeInfoEventArgs( dt.Hour,dt.Minute,dt.Second); // if anyone has subscribed, notify them if (OnSecondChange != null) { OnSecondChange( this,timeInformation); } } // update the state this.second = dt.Second; this.minute = dt.Minute; this.hour = dt.Hour; } } private int hour; private int minute; private int second; } // an observer. DisplayClock subscribes to the // clock's events. The job of DisplayClock is // to display the current time public class DisplayClock { // given a clock, subscribe to // its SecondChangeHandler event public void Subscribe(Clock theClock) { theClock.OnSecondChange += new Clock.SecondChangeHandler(TimeHasChanged); } // the method that implements the // delegated functionality public void TimeHasChanged( object theClock, TimeInfoEventArgs ti) { Console.WriteLine("Current Time: {0}:{1}:{2}", ti.hour.ToString( ), ti.minute.ToString( ), ti.second.ToString( )); } } // a second subscriber whose job is to write to a file public class LogCurrentTime { public void Subscribe(Clock theClock) { theClock.OnSecondChange += new Clock.SecondChangeHandler(WriteLogEntry); } // this method should write to a file // we write to the console to see the effect // this object keeps no state public void WriteLogEntry( object theClock, TimeInfoEventArgs ti) { Console.WriteLine("Logging to file: {0}:{1}:{2}", ti.hour.ToString( ), ti.minute.ToString( ), ti.second.ToString( )); } } public class Test { public static void Main( ) { // create a new clock Clock theClock = new Clock( ); // create the display and tell it to // subscribe to the clock just created DisplayClock dc = new DisplayClock ( ); dc.Subscribe(theClock); // create a Log object and tell it // to subscribe to the clock LogCurrentTime lct = new LogCurrentTime( ); lct.Subscribe(theClock); // Get the clock started theClock.Run( ); } } } Tag: Bringing back previous instance Tag: 53898
  - 3
    - How to determine if a port is already in use Hi I am modifying the Cassini web server to work with my application. I want it to be possible to pick a port and test it to see if its already in use. If it is then I want to choose the next port, test it and so on... Can anyone tell me how to test a port to see if its already in use. Thanks, Paul. Tag: Bringing back previous instance Tag: 53892
  - 4
    - .NET Framework Path Hello all, Just a quick question... Is it true that the path of the .NET framework SDK files is always under: {windir}\Microsoft.NET\Framework\{version} ? I.e. is there anyway the user could change this path? I'm asking this because I am currently creating an IDE for .NET programming and wanted to know the path for csc.exe, vbc.exe, ilasm.exe, etc... If the path is variable, then I will get the user to choose it from a dialog. Thanks for your help, Aaron Chan Tag: Bringing back previous instance Tag: 53890
  - 5
    - =?iso-8859-1?Q?SetTabPicture_'Catastrophic_error'.?= Hi, I am writing a VS.NET Add-in, this Add-in is written using C#(for the GUI) and C++, the Add-in includes a tool window ( e.g. .Windows.CreateToolWindow ), I am trying to set the windows tab image using the '.LinkedWindowFrame.SetTabPicture' API, but I keep getting a 'Catastrophic error' exception, what am I doing wrong??? The C# GUI hosts a C++ ActiveX Control, the IPictureDisp object is being created by the ActiveX Control and passed to the C# GUI for future usage, the C# container uses this Object to set the tab image of the wingdow ( e.g. SetTabPicture) Following is a simplified corresponding code sample: C++: ####################################################### ATL::CComPtr<IPictureDisp> spPicture; PICTDESC ptd = { 0 }; HMODULE hEXE = LoadLibrary("C:\\windows\\regedit.exe"); ptd.cbSizeofstruct = sizeof(ptd); ptd.picType = PICTYPE_ICON; ptd.icon.hicon = (HICON)LoadImage(hEXE, MAKEINTRESOURCE(100), IMAGE_ICON, 16, 16, LR_DEFAULTCOLOR); ::OleCreatePictureIndirect(&ptd, __uuidof(IPictureDisp), TRUE, (void**)&spPicture); FreeLibrary(hEXE); Fire_OnPictureLoaded(spPicture) C#: ####################################################### private static void OnPictureLoaded( stdole.IPictureDisp pIPictureDisp) { .bal bla bla. try { // The following line generates the Catastrophic error g_This.m_ToolWindow.LinkedWindowFrame.SetTabPicture( pIPictureDisp); } catch(Exception exp) { System.Windows.Forms.MessageBox.Show(exp.Message); } } WHY DO I GET A CATASTROPHIC ERROR ??? Thanks in advance, Nadav, Sofin l.t.d. Look at a great new tool I have developed at: http://www.ddevel.com/home/main.asp Tag: Bringing back previous instance Tag: 53885
  - 6
    - How can I get motherboard Serial number? I want to get motherboard serial number to protect copyright in my software. But I don't know how to do. I got some code from Internet: Imports System.Management Dim searcher As New ManagementObjectSearcher("SELECT * FROM Win32_BaseBoard") Dim share As ManagementObject For Each share In searcher.Get() Debug.WriteLine("manufacturer:" & share("Manufacturer")) Debug.WriteLine("Product:" & share("Product")) Debug.WriteLine("SerialNumber:" & share("SerialNumber")) Next share but it only return "Product" item, the other two is null. How can I get unique MotherBoard Serial Number? Waiting help.....!!!! Tag: Bringing back previous instance Tag: 53876
  - 7
    - bug !!bug !! on windows synchronization!! hi all, I have some problem on a Windows application in .Net Framework,just as below: private void button1_Click(object sender, System.EventArgs e) { WindowsApplication1.localhost.Service1 ser=new WindowsApplication1.localhost.Service1(); textBox1.Text=ser.Add(int.Parse(textBox1.Text),1).ToString(); MessageBox.Show("ok"); } you know, A webservice named ser is called in the above function,and ,when the main form is loaded for the first time,if I click the button1 on the form very quickly,the awful thing would happen:a messagebox is showed,when I close it ,another messagebox is opened,I continue closing, and the same thing happen:a messagebox is showed.The number of messageboxes is according to the speed of my mouse clicking. so, it seems the button1 still accept the click event while a webservice is being called for the first time.But I expect only one messagebox would be showed even though I click very quickly.How to control? hope your help!!! Thank you! Tag: Bringing back previous instance Tag: 53872
  - 8
    - Regular expressions and HTML Hi I'm working on a method that will transform an HTML fragment into an XHTML fragment. I thought I'd have a go at using regular expressions in .NET, because I don't really understand the numerous regular expression classes in .NET and I thought it might be a good opportunity to learn. I want to break down the HTML into element names, attribute names, attribute values and element content. The regular expression I came up with, that successfully matches fragments such as <div contenteditable id="test">, looks like this: ^(?<precedingText>[^<>]*)((((<(?<elementName>[a-zA-Z_][a-zA-Z0-9_]*)\s*((?<=\s)(?<attributeName>[a-zA-Z_][a-zA-Z0-9_]*)((\s*=\s*""(?<attributeValue>[^""]*)""\s*)|(\s*=(?<attributeValue>[^\s"">]+)\s*)|(\s*(?!\s*=))))*\s*>))|(</(?<closingElementName>[a-zA-Z_][a-zA-Z0-9_]*)\s*>))(?<text>[^<>]*))*$ A bit complicated I know, but it works. However, now I don't know how to extract the various elementName, attributeName etc. group values in order to match them up. All seems a bit wild to me. Can anyone tell me the best way to construct a regular expression in order to produce the desired result? I suspect using constructs such as (?<elementName>....)* doesn't work so well because of the repeat, but how else could it be done? Cheers, Wangchuk Tag: Bringing back previous instance Tag: 53863
  - 9
    - Can I make a class from XML? Serialize? Hi guys, I need a way to dynamically change (or create) a custom class using an external xml file. Can this be done at all? This is what the class looks like: Public Class MemberData Private _EmailGUID As String Private _Email As String Private _FirstName As String Private _LastName As String Private _Title As String Private _Company As String Private _Address As String Private _PostalCode As Integer Private _City As String Private _Phone As String Private _Active As Integer Private _RegDate As DateTime Private _ChangeDate As DateTime Public Sub New() MyBase.New() _EmailGUID = "" _Email = "" _FirstName = "" _LastName = "" _Title = "" _Company = "" _Address = "" _PostalCode = 0 _City = "" _Phone = "" _Active = 0 _RegDate = Nothing _ChangeDate = Nothing _SoftBounces = 0 _HardBounces = 0 _GroupIDs = "" End Sub Public Property EmailGUID() As String Get Return _EmailGUID End Get Set(ByVal Value As String) If ((Value Is Nothing) OrElse (Value.Length = 0)) Then Throw New Exception("The email address identifier cannot be empty") End If _EmailGUID = Value End Set End Property Public Property Email() As String Get Return _Email End Get Set(ByVal Value As String) If ((Value Is Nothing) OrElse (Value.Length = 0)) Then Throw New Exception("The email address cannot be empty") End If _Email = Value End Set End Property [...] End Class Thanks. Regards Jonah Tag: Bringing back previous instance Tag: 53850
  - 10
    - Audio What is the best way to play audio files in managed codes? Thanks in advance. Tag: Bringing back previous instance Tag: 53842
  - 11
    - .NET 'Old' Resource access ????? Hi, I wonder... How one should use C# to access resource data stored in an EXE (8086*) binary ??? ( VC6 .rc resource data )? Can the ResourceManager be used to extract this type of data? Any directions/samples/pointers will be appriciated. Thanks in advance, Nadav, Sofin l.t.d. Look at a great new tool I have developed at: http://www.ddevel.com/home/main.asp Tag: Bringing back previous instance Tag: 53840
  - 12
    - How to obtain invalid file name characters Hi, How does one obtain a platform's invalid file name characters from the .NET framework? I have noticed that invalid path characters can be obtained from System.IO.Path.InvalidPathChars but this list does not include items that would be illegal for file names (for example, a colon: would be invalid in a MS Windows environment). Please note that catching an exception from Path.GetFileName() would allow me to test the validity of a file name but would not allow me to include the invalid characters in a message to the user. Many thanks. Nathan Tag: Bringing back previous instance Tag: 53833
  - 13
    - Template Based Applications I am about to start a new project, which a template based application. It's a report generator (MS Word). The user selects a report template and fills it with the report specific information. It can't be ms word template itself. The application is much more complicated than that. Do you know of the papers/articles regarding the template based application architecture and design? Tag: Bringing back previous instance Tag: 53832
  - 14
    - Faulty implmentation of ThreadPool.RegisterWaitForSingleObject I think I've found a problem in the framework implementation of the ThreadPool RegisterWaitForSingleObject method. Given the following C# code: static void Main(string[] args) { ManualResetEvent evt1 = new ManualResetEvent(false); ManualResetEvent evt2 = new ManualResetEvent(false); ThreadPool.RegisterWaitForSingleObject(evt1, new WaitOrTimerCallback(EventProc), "Event 1", 30000, false); ThreadPool.RegisterWaitForSingleObject(evt2, new WaitOrTimerCallback(EventProc), "Event 2", 30000, false); evt1.Set(); evt2.Set(); Thread.Sleep(20); evt2.Reset(); evt1.Reset(); } private static void EventProc(object state, bool timedOut) { Console.WriteLine(state); } I'd expect to see messages for both Event 1 and Event 2 during the time they are both set. However, only messages from Event 1 show up. According to the docs, the RegisterWaitForSingleObject method is implmented using the Win32 WaitForMultipleObjects call to monitor all of the registered objects, with the fWaitAll parameter set to false I'd assume. However in that case, the WaitForMultipleObjects call only returns at most one indicator of a signaled object even if more than one of the objects are signaled. That means that when both evt1 and evt2 are signaled in the above code, the program will only get notifications of the lowest indexed one in the WaitForMultipleObjects handle array. Obviously using manual event handles makes the problem stand out more, but this could definitely cause problems if someone expects notifications no matter how many other objects are signaled at the same time. I beleive that the implementation should be corrected, or at least have the framework documentation updated to point out this issue. Jeff Skaistis Tag: Bringing back previous instance Tag: 53829
  - 15
    - vbc compile error I receive the following error message when I compile vb code. Any help would be appreciated. vbc : Command line error BC2017 : could not find library 'System.WinForms.dll' vbc : Fatal error BC2000 : compiler initialization failed unexpectedly: The system cannot find the file specified. Tag: Bringing back previous instance Tag: 53826
  - 16
    - How can I set advanced file properties with .NET? Hi Space! Im looking for a way to set the advanced file properties (e.g. title, author, subject, etc.) on a file which is on a NTFS volume out from C#. I can only find methods to set the normal properites (attributes) (e.g. last access time, archive, etc.). Is there a way to do this in .NET? I'm glad for any hints! Thanks Chris Tag: Bringing back previous instance Tag: 53825
  - 17
    - .net framework1.1 installation failure the program will download but will not install. There is an installation failure about 4 seconds after it starts. No message with the failure. I need to know why it will not install Tag: Bringing back previous instance Tag: 53822
  - 18
    - Problem with DateTime.Parse Hello, why does this not work (the OS runs with german settings): DateTimeFormatInfo dtFI = new DateTimeFormatInfo(); dtFI.FullDateTimePattern = "ddd MMM dd HH:mm:ss yyyy"; dtFI.AbbreviatedDayNames = new string[] {"Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"}; dtFI.AbbreviatedMonthNames = new string[] {"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec", ""}; return DateTime.Parse("Fri Aug 01 09:03:43 2003", dtFI); Thanks for any suggestion. Tobias Tag: Bringing back previous instance Tag: 53818
  - 19
    - Office 2003 and Visual Studio.NET Hi all, I have installed Visual Studio.NET 2003 -Italian-, and Office 2003 Beta. Then I have installed Visual Studio Tools for Office Beta, but during installation, setup show me a error messege: "Setup has detected language mismatch between this package and Visual Studio. Please obtain appropriate language version before trying again." There is a troubleshooting for this problem. I have not a english copy of Visual Studio.NET 2003. Thank Marco Tag: Bringing back previous instance Tag: 53815
  - 20
    - No System.Web.Mail in .Net Framework 1.1 I cannot find the following in .Net Framework 1.1 (1.1.4322): System.Web.Mail System.Text Were these replaced with something else? Are they an add-on that I need to download? Did I get a bad installation of .Net Framework 1.1? I see them in the documentation but not in the .Net Reference listing.(Visual Studio .Net 2003 EA- Upgrade) Thanks in advance...... Tag: Bringing back previous instance Tag: 53806
  - 21
    - Assembly version from unloaded assembly Hi there Can anyone tell me how to load information from an assembly that is not loaded ie: on disk? Thanks Tag: Bringing back previous instance Tag: 53805
  - 22
    - Cannot create an object of type 'System.String[]' from its representation 'String[] Array' Hello, I am designing a .net custom control in VS.net 7.1 and my control exposes an array of strings which are supposed to be the items to show. To do this have declared a private string[ ] variable and a public property which returns it. string[] options = new string[1]; public string[] Options { get { return options; } set { options = value; } } It works fine in the disigner and I can add items to the list using the VS.net string collection editor and see the changes in real-time. But when I run the App, I recieve this error: Cannot create an object of type 'System.String[]' from its string representation 'String[] Array' for the 'Options' property. Even with other types of collections (objects, etc.), I receive this error. What should I do. Tag: Bringing back previous instance Tag: 53804
  - 23
    - Collection property not working From: "Hessam" <hessammehr@msn.com> Subject: Collection property not working Date: Friday, August 08, 2003 12:24 PM Hello, I am designing a .net custom control in VS.net 7.1 and my control exposes an array of strings which are supposed to be the items to show. To do this have declared a private string[ ] variable and a public property which returns it. string[] options = new string[1]; public string[] Options { get { return options; } set { options = value; } } It works fine in the disigner and I can add items to the list using the VS.net string collection editor and see the changes in real-time. But when I run the App, I recieve this error: Cannot create an object of type 'System.String[]' from its string representation 'String[] Array' for the 'Options' property. Even with other types of collections (objects, etc.), I receive this error. What should I do. Tag: Bringing back previous instance Tag: 53803
  - 24
    - How to make a trial version of my software Hello, I was developa software and I want to sell it I want to have two version 1) Trial version (30 days of validity) 2) Full version My question is, which is the correct or normal way to implement a 30 day trial software?, so I need to detect the installation date and compare to the current date.. I think that that is a way. If some body can put me in the correct way I'll appreciate very very much. Thanks a lot. AA Tag: Bringing back previous instance Tag: 53785
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    - IRDA and the Compact Framework Im not usre if this is the correct group but I am having major problems getting a compact framework application to connect to a irda printer. It will discover the device without problem but will tell me the connection was actively refused when I try to connect to it. I have tried and used a serial connection successfully (via emulator) and have all the code to print to the printer and read the in built mag card reader but I need to be able to acheive this over irda. The printer supports irLPT and IrComm 3 wire. Please help. Tag: Bringing back previous instance Tag: 53757

I can prevent my application to exist in more than one instance by using Mutex. I want the previous instance back to desktop when
the user wanna open the second instance. Can I use mutex name to get the form of the prevous instance? I don't want to use the name
of the form. Thanks.

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