BUG: IntelliSense may not work correctly when you type code in the code window for an application that was built by using ASP.NET 2.0 in Visual Studio 2005

When you type code in the code window for an application that was built by using Microsoft ASP.NET 2.0 in Microsoft Visual Studio 2005, Microsoft IntelliSense may not work correctly. You may also notice that CPU usage reaches 100 percent when IntelliSense is not responding. This problem occurs when the following conditions are true:

• The application code that you work on resides in an .aspx file or in a code-beside file.
• One or more of the configuration files that are required to compile the application contains a code error. Examples of configuration files include the Web.config file and the Machine.config file.

This problem occurs when a compilation error prevents IntelliSense from working correctly. When a required configuration file or a file in the App_Code directory is updated, IntelliSense recompiles the application. A code error in a required configuration file may cause a compilation error that interferes with IntelliSense.

To work around this problem, locate and resolve any code errors in the Web.config file and in any other required configuration file for the application.

Microsoft has confirmed that this is a bug in the Microsoft products that are listed in the "Applies to" section.