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It turns out that MembershipUser.UserName is a read only property, there is no Set { } method in the Membership Provider, only Get { }. If you try to use Membership.UpdateUser() to change an existing username, you will get the following error:

CS0200: Property or indexer ‘System.Web.Security.MembershipUser.UserName’ cannot be assigned to — it is read [...]

Why would you want to do this? I’m not sureyet, but as an ASP.NET developer, I know I’m probably going to need to understand how to use it.
The .NET Framework 3.0 adds new technologies to the .NET Framework 2.0, which makes the .NET Framework 3.0 a superset of the .NET Framework 2.0. You [...]

The ASP.NET AJAX Control Toolkit includes a control called the AnimationExtender which provides a framework for adding animation effects to web pages. One ability of the AnimationExtender is to execute code based on a condition using the Condition Animation rules. Condition Animation will “play” specific child animations based on the boolean result of [...]

The Google Maps API requires you to generate a key that is tied to the URL where the map will be deployed. This can be inconvenient if the site exists in multiple places at the same time…as is the case in many development scenarios:

Develop
Test
Deploy

These three stages can also represent physical locations. Development is [...]

The ASP.NET RadioButtonList does not provide a declarative way to attach the onclick attribute to a ListItem. However, it can be done using the OnDataBound event handler. This is useful in a scenario where you have a TextBox that you would like to populate with the user’s RadioButtonList SelectedValue. In this example, [...]

Beta2 release of ASP.NET AJAX (formerly known as “Atlas”) was released on Monday. Scott Guthrie has an overview of the highlights of this release. Notable among them is added support for drag and drop ASP.NET 2.0 web parts in Safari and Firefox. David Barkol explains how to add this support to existing [...]

I’m setting up a new PC with all the tools a Web Developer might need. While installing Microsoft SQL Server 2005, I encountered the following error during setup:
SQL Server Setup failed to obtain system account information for the ASPNET account. To proceed, reinstall the .NET Framework, and then run SQL Server Setup again.
This is [...]