Browse by Tags

Validation of viewstate MAC failed.

Even if I didn’t search the root cause of the problem, a clear workaround is simply to disable mac validation on viewstate. <pages enableViewStateMac="false" enableEventValidation="false" viewStateEncryptionMode="Never"> Don’t forget the enableViewStateMac many sources...

Posted to Frederick Chapleau weBlog on IT. (Weblog) by Frederick.Chapleau on 08-15-2010
Screen Capture and Save to File

A little code snippet that is doing a Screen Capture, saving it to a Jpeg file, and launch the default program associated to jpg to view it. Size s = System.Windows.Forms.Screen.PrimaryScreen.Bounds.Size; string filename = Path.GetTempFileName() + ".jpg"; using (Bitmap bitmap = new Bitmap(s...

Posted to Frederick Chapleau weBlog on IT. (Weblog) by Frederick.Chapleau on 07-25-2010
ServiceHost only supports class service types.

In WCF, ServiceHost instantiate the class that your Service inherit, when you access the .svc file, which is not the interface, but the class itself. Check out the .svc file (open it with the XML or Text Editor) and validate that the inherited class is the good one. -f.

Posted to Frederick Chapleau weBlog on IT. (Weblog) by Frederick.Chapleau on 07-16-2010
Start a process and follow the output in C#

ProcessStartInfo psi = new ProcessStartInfo(@"c:\windows\system32\ping.exe"); psi.Arguments = "127.0.0.1"; psi.RedirectStandardOutput = true; psi.UseShellExecute = false; Process process = Process.Start(psi); process.WaitForExit(); string output = process.StandardOutput.ReadToEnd...

Posted to Frederick Chapleau weBlog on IT. (Weblog) by Frederick.Chapleau on 07-11-2010
Google Reader API to check for Unread Article

Everything you need to have a summary of unread item in your Google Reader account…! using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Net; using System.IO; using System.Xml; namespace Chapleau.GoogleReader { public class GoogleReader...

Posted to Frederick Chapleau weBlog on IT. (Weblog) by Frederick.Chapleau on 07-09-2010
The Best Generic-Lazy-Initialized Singleton implementation

public abstract class Singleton<T> where T: class, new() { public static T Instance { get { return Nested.instance; } } private class Nested ...

Posted to Frederick Chapleau weBlog on IT. (Weblog) by Frederick.Chapleau on 07-01-2010
WCF Error : The token provider cannot get tokens for target

The inner exception is a much better source for this error message. The underlying message was The NetworkCredentials provided were unable to create a Kerberos credential, see inner execption for details. And from this exception the inner one’s detail was InitializeSecurityContent failed. Ensure the...

Posted to Frederick Chapleau weBlog on IT. (Weblog) by Frederick.Chapleau on 06-30-2010
Download .NET Framework 4.0 – Direct Link

http://www.microsoft.com/downloads/details.aspx?FamilyID=9cfb2d51-5ff4-4491-b0e5-b386f32c0992&displaylang=en It took me too long to find it (almost… 20 sec). I hope Google will index that first ;) -f.

Posted to Frederick Chapleau weBlog on IT. (Weblog) by Frederick.Chapleau on 04-20-2010
Visual Studio setup cannot run in compatibility mode in VS2010

The solution from Dluk, posted for the Beta2 Version of Visual Studio 2010 on 11/10/2009 and worked for me with the **released** version was…: Got it! 1. Rename following registry key before install (e.g. add _ to the name): HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution...

Posted to Frederick Chapleau weBlog on IT. (Weblog) by Frederick.Chapleau on 04-13-2010
Underscore prefix with C#, is it a best practice?

I used this since the beginning, thinking that this was a best practice, but without searching a lot. I found this article containing a brief history on this practice... I’ll let you decide if it’s a best practice to you. http://blogs.msdn.com/sourceanalysis/archive/2008/05/25/a-difference-of-style.aspx...

Posted to Frederick Chapleau weBlog on IT. (Weblog) by Frederick.Chapleau on 03-01-2010

Page 1 of 8 (79 items) 1 2 3 4 5 Next > ... Last »