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ASP.Net

A collection of 60 posts

The Controls collection cannot be modified because the control contains code blocks

Server Error in '/' Application. The Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %>).Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated

String.Format- Exception of type System.Web.HttpUnhandledException was thrown.

TypeSystem.FormatExceptionMessageException of type 'System.Web.HttpUnhandledException' was thrown. StackTraceat System.Text.StringBuilder.FormatError() at System.Text.StringBuilder.AppendFormat(IFormatProvider provider, String format, Object[] args) at System.String.Format(IFormatProvider provider, String format, Object[] args) Error Line0 Just got that message (or at most "Exception of type

'debug' is undefined with Microsoft AJAX release and TextChangedBehavior.js

As with my previous post, we upgraded the AJAX framework on the weekend which broke a few things, but one control in particular that broke was our TextChangedTextBox which is based on Pete Kellner's timed postback control. Since updating we were receiving a "'debug' is

Server cannot modify cookies after HTTP headers have been sent (RoleManagerModule.OnLeave)

Over the weekend we had to upgrade the server's version of ASP.Net AJAX which went fine until this morning when we started receiving the error "Server cannot modify cookies after HTTP headers have been sent." Luckily this wasn't bubbled up to the UI

ASP.Net Membership SQL Roles access

We have recently moved over to SQL Server 2005 and as part of this transfer I decided to aggregate two separate ASP.Net Membership databases that were created purely out of error. For those of you who don’t already know, you can happily run more than application’s security

How to use Phil's error reporting code

I’ve done a number of posts now on Phil Whinstanley’s error reporting class and this blog appears to be getting a lot of hits because of that which is pretty neat, as a result I’ve had a couple of people write to me asking similar questions about

ASP not running on Windows 2003 with ASP.Net installed

Another post from DougSetzer from 27Seconds.com :) At my "day job", the systems guys are building new Windows 2003 servers to upgrade our aging Windows 2000 servers. The plan is to: - Build the new Windows 2003 server - Install IIS - Install .NET - Run the IIS

Accessing properties by a string name

This morning Julian Voelcker came to me with an interesting issue that I’ve looked into before but I’ve never really looked into a re-useable solution. Seeing as it’s fun Friday I thought why not ;) The scenario: I would like to offer my users a custom mail merge

Reporting errors from AJAX using the WebException Class

I’ve been using Phil Whinstanley’s error reporting class1 within my applications for some time now and it really does help with diagnosing issues with the site’s during development (or client testing) but also alerting me to errors on live sites. I also like it because it can

DasBlog RSS Feed Macro

As part of my blog’s re-design I wanted to integrate my statistics from Last.FM which monitors what music you’re listening to and generates a stack of statistics about your listening habit (see About Last FM for more information). Anyways, I started writing my own RSS macro when