Ok, so this was weird and took a while to track down. After setting some styles for a TabControl, a 1 pixel gap appeared between the tabs in the header of the control and the tab body: Firefox had no issue as usual. After the traditional flurry of setting margins and padding to 0 on every blo... [More]

I've come across this problem a few times and the solution is frustratingly simple and not so obvious given the error message, so I'll note it here. After checking the obvious (making sure the file exists in the location mapped to the virtual directory) I found this support article from Mi... [More]

I found this handy feature of the ASP.Net 2.0 Framework today: If you want to disable all access to your ASP.Net 2.0 web site you can just place a file called App_Offline.htm in you root directory. All requests to any folder of the site are directed to this page, so you can write a friendly 'Dow... [More]

The ModalPopupExtender in the AjaxControlToolkit is great for showing a modal dialog in ASP.Net web sites. Recently I needed to have my dialog perform some server-side code when the user hit the 'Ok' button. This would require a postback which I wanted to be asynchronous so it would be sea... [More]

You can add references to assembly namespaces in your web.config to avoid having to register controls on every .aspx in your web site: [code:xml] <system.web>     <pages>         <controls>       &... [More]

I've found myself in need of debugging the javascript for the Ajax toolkit controls (AjaxCotnrolToolkit.dll) and in some cases the ASP.Net AJAX libraries. Here's how to set up an existing ajax-enabled web site to run from source code. This is intended for people using the Ajax framework... [More]

I got this error when implementing a custom membership provider for which I grabbed the code from this MSDN article.   When I tried to login through ASP.Net's Login control I got the following error:   "Hashed or Encrypted passwords are not supported with auto-generated keys... [More]

The html code that Paypal provides for donate buttons doesn't work when inserted directly into an ASP.Net web form. Because the Paypal form is nested inside the main <form> tag, when we click the button the page posts back to itself and effectively just refreshes. One way to get arou... [More]

In a recent web project I had a requirement for incremental searching - for each character entered into a text box we need to call a search function on the server and update a list displayed in a div in the browser. ASP.Net and a bit of Ajax makes this task quite simple. Calling The Server-Si... [More]

Update: After looking into this a bit further I found the problem doesn't exist in the Microsoft Ajax Library 3.5 (the same library bundled with ASP.Net 3.5). The same fix I propose here is implemented in that version...go me! Bill Gates must read my blog ;-P. So if you can upgrade, go for tha... [More]