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Getting the Sys.WebForms.PageRequestManagerParserErrorException while making an AJAX callback

Recently I encountered an issue wherein our customer was running into a client side AJAX exception, Sys.WebForms.PageRequestManagerParserErrorException , while trying to make an Async Postback from an ASPX page. This exception was happening for all the Read More...

Posted: Tuesday, July 21, 2009 8:51 PM by amitsh | 1 Comments

Filed under: .NET, AJAX

“Parser Error Message: This implementation is not part of the Windows Platform FIPS validated cryptographic algorithms.” when .net page has debug=”true”

Recently, I came across an issue where the customer faced an FIPS (Federal Information Processing Standards) related error on the .aspx pages which had debug=”true”. His ASP.net application was hosted on IIS7 running on Windows Server 2008 SP2. And, he Read More...

Posted: Monday, July 20, 2009 10:37 PM by vivekkum | 1 Comments

Filed under: IIS7, ASP.NET, .NET, IIS6, FIPS

HttpException Due to Invalid Viewstate After Installing .NET Framework 3.5 SP1

In the recent past I have come across several issues where our customers have started running into ViewState issues after installing SP1 for .NET Framework 3.5. The exception details are similar to the following: Server Error in '/ActionTest' Application. Read More...

Posted: Wednesday, May 13, 2009 10:24 PM by amitsh | 1 Comments

Filed under: ASP.NET, .NET

<location> Tag Causes Local Automatic ASP.NET debugging not to work in Visual Studio

This week I got an interesting issue altogether. One of my customers was unable to debug ASP.NET 3.5 application locally using Visual Studio 2008. The application was created using Web Application Project. When we started the application using "Start Read More...

Posted: Monday, February 02, 2009 8:37 PM by amitsh | 0 Comments

Filed under: .NET, Visual Studio, AJAX

Weeking recap of ASP.NET Debugging blog

Here are last weeks updates to the ASP.NET Debugging blog: Code Gallery and CodePlex, how are they different and what are their benefits? An Open Debugger Extension Job openings with the .NET Framework Team ASP.NET Tips- What to gather to troubleshoot Read More...

Posted: Tuesday, May 06, 2008 10:05 AM by Tom | 0 Comments

Filed under: IIS7, ASP.NET, IIS, .NET, High Memory, Debugging

Looking at the finalization queue in the debugger

Want to see what objects you have added a finalizer too, follow the information here . Read More...

Posted: Monday, April 28, 2008 12:17 PM by Tom | 1 Comments

Filed under: ASP.NET, IIS, .NET, Debugging

Understanding when to use a Finalizer in your .NET class

If you are going to use a finalizer in your .NET class, be sure to read this post so that you understand when you should and shouldn’t use it: Understanding when to use a Finalizer in your .NET class Read More...

Posted: Friday, April 25, 2008 6:07 PM by Tom | 0 Comments

Filed under: ASP.NET, IIS, .NET, High Memory

Making an Asynchronous Call using the Impersonation Identity

Have you ever wanted to make an asynchronous call but use the credentials of the user that is browsing your site? Or connect to a database using a specific user account? Check out how to do both of these here . Read More...

Posted: Wednesday, April 23, 2008 9:40 AM by Tom | 0 Comments

Filed under: ASP.NET, IIS, .NET

Have a question? Submit it and get an answer

You can submit any question you have around .NET, IIS, or ASP.NET to me at my blog and I’ll answer the question or create a blog posting about it. Feel free to ask anything you’d like. Got a question- Get an answer here Read More...

Posted: Tuesday, April 15, 2008 4:00 PM by Tom | 0 Comments