All ASP.NET Controls
When upgrading a Visual Studio 2002/2003 project to a Visual Studio 2005 (.NET Framework 2.0) project via the Infragistics .NET Upgrade Utility, you must close Visual Studio 2005 when the upgrade is complete, then re-open your upgraded project. Failure to do so will result in errors in the ASPX page and will prevent you from switching to Design view. This issue affects all ASP.NET controls.
WebChart
Due to a compatibility issue with Visual Studio 2005's HTML Validation feature, some developers may encounter the following error when upgrading ASP.NET pages to Visual Studio 2005:
"Can not switch to Design view because of errors in the page. Please correct all errors labeled 'Can not switch:' in the Error List and try again."
"Cannot switch view: Validation (XHTML 1.0 Transitional): Element 'style' cannot be nested within element 'div'."

To resolve this problem, simply remove the element representing the LineAnnotation's "Style" property, switch to design view, and set these properties using the property grid, or set them in the run-time code.
The persistence mode of the Style property has been changed: instead of persisting as an inner element, the LineAnnotation.Style property will persist as a series of attributes on the LineAnnotation element. This will prevent the Validation error from happening in the future.
