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- Previous
  - 1
    - Reflection: Get type signed with attribute Hi! We defined an attribute that can be applied to a type multiple times (AllowMultiple = true). A type can have numerous instances of that attribute that it may have inherited from its base classes. Problem: If we have an instance of that attribute how can we find out which class originally was signed with that specific instance. E.g: [AttributeUsage( AttributeTargets.Class, AllowMultiple = true )] public class MyAttribute : Attribute { public MyAttribute( int intVal ) { ... } } [My(1)] class Base { } [My(2)] class Child : Base { } So Child is signed with My(1) and also My(2). If we have My(1), how can we get the type that was signed with My(1), in this case Base. TIA, Markus -- ########################################## Please do not send replies to msdngroups@syska.de. Mails sent to that adress will be deleted without being read. Tag: Threading.. Tag: 54089
  - 2
    - WebClient.DownloadData without cache I am using WebClient to download a text file from the net every 2 minutes. The problem is that I think I am reading the file from cache since when the file is change I still get the old file. Here is my code: Dim myWebClient As New WebClient() Dim responseArray As Byte() = myWebClient.DownloadData(szURL) How can I tell WebClient not to use cache ? Thanks in advance ra294@hotmail.com Tag: Threading.. Tag: 54087
  - 3
    - Connect to IrDA device from Windows Application How to connect to IrDA devices (such as mobile phone, pda) from Windows Application. Thanks. Tag: Threading.. Tag: 54081
  - 4
    - Speed issues Hi all, Has anybody experienced any significant drop in performance when moving from the 1.0 to 1.1 framework regarding ASP.net? I have some serious performance issues, but when I profile the code nothing is constant and the problem seems to keep moving. I was just wondering if the move to 1.1 could have something to do with it. Thanks in advance. Eben Tag: Threading.. Tag: 54071
  - 5
    - when will MS release Framework 2.0? Who know the plan? Where can I get the plan about .net development? Thanks a lot Tag: Threading.. Tag: 54069
  - 6
    - FileSystemWatcher returns changed files in lower case Hi, The FileSystemWatcher works fine to return the files changed. However, the path returned through FileSystenArgs.FullName is always in lower cases, e.g., c:\projectfiles\watched\foo.txt even though both the directory and file names are in proper case like c:\ProjectFiles\Watched\Foo.txt. I've tried to instantiate a DirectoryInfo or FileInfo with the returned file path, hoping they will return the path in proper case but without success. Is there a work around? The project I'm working on copies the changes to another machine so it's important that I can maintain the case so users won't get confused. Thanks in advance, Donald Xie Tag: Threading.. Tag: 54057
  - 7
    - Please help us... POSTing with Http/WebRequest I have noticed that a lot of people were having a similar problem to mine which involves using the POST method with the HttpWebRequest/WebRequest/WebClient classes (.NET 1.1). The classes will send out one HTTP packet that says content of a certain length will follow but the second packet is never sent, which usually results in a 400 error from the server. I've tried my code on both HTTP 1.0 and 1.1 servers and both gave the same result. Here is my example: Try Dim LogInURL As String = "http://s2.starkingdoms.com/scripts/main.cgi" 'Dim LogInURL As String = "http://sklone.homeip.net/scripts/BrowserLogin.aspx" Dim Account As String = "blah" Dim Password As String = "blah" Dim Request As Net.HttpWebRequest = Net.HttpWebRequest.Create(LogInURL) Request.ContentType = "application/x-www-form-urlencoded" Request.Method = "POST" Request.ProtocolVersion = Net.HttpVersion.Version10 'Request.ProtocolVersion = Net.HttpVersion.Version11 Dim RequsetStream As IO.Stream = Request.GetRequestStream() Dim ASCIIEncoding As New System.Text.ASCIIEncoding Dim PostData As Byte() = ASCIIEncoding.GetBytes("Account=" & Account & "Password=" & Password) RequsetStream.Write(PostData, 0, PostData.Length) RequsetStream.Close() Dim Reader As New IO.StreamReader(Request.GetResponse().GetResponseStream()) Dim ResultHTML As String = Reader.ReadToEnd() Reader.Close() MsgBox(ResultHTML) Catch ex As Exception MsgBox(ex.Message) End Try And here's what happens: POST /scripts/main.cgi HTTP/1.0 Content-Length: 25 Connection: Keep-Alive Host: s2.starkingdoms.com Followed by the Bad Request (400) error. Tag: Threading.. Tag: 54054
  - 8
    - Properties the .NET IDE way? All, Anybody know if there is an easy way to duplicate how the .NET IDE presents properties and events? Specifically that it has a window with a Name/Value pair but the value field is editable and can contain a drop-down, combo, edit box, multi-line edit box, etc? Erin. Tag: Threading.. Tag: 54052
  - 9
    - Multiple frameWorks, Serialization and Versions Hi I got some type of form designer where I could open up a .net form (done with reflection in run time so I'm not using design time environment or anything) move controls around and finally save the form. What it really saves is an xml file where controls properties are binary serialized. Next time I open up the form I could just load this this xml file deserialize properties and assign them to corresponding objects. Now the problem is the controls that I have are the custom controls inherited from dotnet ones, and we have a total build process that runs everyday and changes versions of these controls. So we are using simple binary serialization (doesn't include versions). This is fine if you don't have another version of .net framework in gac. What would you suggest here? Tag: Threading.. Tag: 54043
  - 10
    - Socket.Select Bug?? There seems to be a 64 element limit on any socket list passed as a argument to the select method. Someone else in the forum traced the IL code, and found some problems in the following code, I don't know if it is a bug. In this method , it first stored the count of the socketlist we passed in with out any range check, and then if the count isn't zero, the method will always allocate a native int[64] array, which ofcourse doesn't match with the value in FileDescriptorSet.Count, then the IndexOutOfRangeException is thrown in the following codes. maybe the conceptual code in c# like this: FileDescriptorSet(Int32 count) { Count = count; if (!Count) Array = new IntPtr(64); else Array = null; } System.Net.Sockets.FileDescriptorSet ..method public hidebysig specialname rtspecialname instance void .ctor(int32 count) cil managed { // Code size 27 (0x1b) .maxstack 8 IL_0000: ldarg.0 IL_0001: ldarg.1 IL_0002: stfld int32 System.Net.Sockets.FileDescriptorSet::Count IL_0007: ldarg.0 IL_0008: ldarg.1 IL_0009: brfalse.s IL_0014 IL_000b: ldc.i4.s 64 IL_000d: newarr [mscorlib]System.IntPtr IL_0012: br.s IL_0015 IL_0014: ldnull IL_0015: stfld native int[] System.Net.Sockets.FileDescriptorSet::Array IL_001a: ret } // end of method FileDescriptorSet::.ctor Any comments are welcome. Tag: Threading.. Tag: 54034
  - 11
    - Upgrade .NET Framework Hello All, I was trying to use FolderBrowserDialog dialog box that is supported only in version 1.1 of .NET Framework. So I upgraded the .NET framework from 1.0 to 1.1 by downloading the dotnetfx.exe. Everything went well with Upgrading but still .NET didn't recognize FolderBrowserDialog type and when I checked the version .NET Framework in "About Microsoft Visual Basic .NET" it showed the version is still 1.0. Any idea about this issue? Or do you know any other way rather than using the FolderBrowserDialog in VB? I appreciate your help in advance. Tag: Threading.. Tag: 54033
  - 12
    - HttpWebRequest I am very frustrated trying to use .NET's HttpWebRequest. Does anybody know where I can find "GOOD" HttpWebRequest documentation and samples? The microsoft ones are woefully inadequate and my last few posts have gone unanswered. You can check my earlier posts if you'd like to see the areas I am having problems with. Erin. Tag: Threading.. Tag: 54031
  - 13
    - The argument type System.Data.DataSet cannot be converted into parameter type Sy I have a three tier application using remote objects. Everything works fine in my development environment but when I move the code to production, I get the following error when passing a dataset as a parameter. The argument type System.Data.DataSet cannot be converted into parameter type System.Data.DataSet Tag: Threading.. Tag: 54029
  - 14
    - Windows Communication & Application Instancing in DotNet Good Morning, My problem is 2 fold. First of all, I want to find out a method of detecting whether a prev. instance of an application is already running (I think I already figured this out), and if so, send a message to that already running application (I am thinking by using the WIN32 API Call of "SendMessage"). I am trying to build an application within which I could do instancing/hooking. Basically, I want to be able to build an application that would be able to detect if another instance of it is already running, and if so, communicate with that already running instance, and send a command, and shut its self down. Almost the same behavior that outlook express has... i.e. if you already have outlook express already running and you attempt to lunch the executable again... it doesn't create a new instance of outlook. I currently have a function called PrevInstance() that detects whether or not a prev. instance of the same app is already running.. My only problem now is communicating with that already running instance of my application. Public Function PrevInstance() As Boolean If UBound(Diagnostics.Process.GetProcessesByName(Diagnostics.Process.GetCurrent Process.ProcessName)) > 0 Then Return True Else Return False End If End Function -- Awah Teh DigicentriQ Technologies, LLC awaht@digicentriq.com www.digicentriq.com 877 675 4742 805 732 9421 -- Awah Teh Chief Executive Officer DigicentriQ Technologies, LLC awaht@digicentriq.com www.digicentriq.com 877 675 4742 805 732 9421 Tag: Threading.. Tag: 54027
  - 15
    - accessing to a windows service hi all! i've created a windows service written on c#. i've added some methods into the "main" class inherited from System.ServiceProcess.ServiceBase. is there any way to get an access to them from any other .net application? when i try to add a reference using the service's exe file as a source, i get a message like "a reference to '...' could not be added. this is not valid assembly or COM component. only assemblies with extention 'dll' and COM components can be referenced.", etc. so how can i get an access to the methods and properties of my service from other .net applications? thanks. --- mr.black's here... Tag: Threading.. Tag: 54026
  - 16
    - Bringing back previous instance 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. -- My C++ and C# ( Traditional Chinese ) Web Site : www.franzwong.com Tag: Threading.. Tag: 54025
  - 17
    - 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: Threading.. Tag: 54020
  - 18
    - 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: Threading.. Tag: 54018
  - 19
    - 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: Threading.. Tag: 54013
  - 20
    - 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: Threading.. Tag: 54012
  - 21
    - .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: Threading.. Tag: 54011
  - 22
    - 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: Threading.. Tag: 54006
  - 23
    - 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: Threading.. Tag: 54003
  - 24
    - 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: Threading.. Tag: 53992
  - 25
    - 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: Threading.. Tag: 53989
- Next
  - 1
    - 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: Threading.. Tag: 53981
  - 2
    - "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: Threading.. Tag: 53977
  - 3
    - 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: Threading.. Tag: 53974
  - 4
    - 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: Threading.. Tag: 53971
  - 5
    - 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: Threading.. Tag: 53963
  - 6
    - 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: Threading.. Tag: 53962
  - 7
    - 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: Threading.. Tag: 53961
  - 8
    - 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: Threading.. Tag: 53959
  - 9
    - 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: Threading.. Tag: 53957
  - 10
    - 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: Threading.. Tag: 53955
  - 11
    - 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: Threading.. Tag: 53954
  - 12
    - 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: Threading.. Tag: 53950
  - 13
    - 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: Threading.. Tag: 53948
  - 14
    - 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: Threading.. Tag: 53945
  - 15
    - 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: Threading.. Tag: 53944
  - 16
    - 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: Threading.. Tag: 53938
  - 17
    - 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: Threading.. Tag: 53908
  - 18
    - 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: Threading.. Tag: 53898
  - 19
    - 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: Threading.. Tag: 53892
  - 20
    - .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: Threading.. Tag: 53890
  - 21
    - =?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: Threading.. Tag: 53885
  - 22
    - 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: Threading.. Tag: 53876
  - 23
    - 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: Threading.. Tag: 53872
  - 24
    - 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: Threading.. Tag: 53863
  - 25
    - 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: Threading.. Tag: 53850

Hi,
i am trying to use thread to insert, update database. If
occur any oledbException, i take a message as "Unhandled
exception of type 'System.Data.OleDb.OleDbException'
occured in Unknow Module." I take this message in Windows
messagebox. (my project is web applicaton and i have a
exception page..I can't take this message in normal
using. when i run in debug mode, i take this message )
But my code is catching oledbexception and other
exception. May be using synchronization couse this
status...

Thanks..
mehmet

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