Error Rendering Control - XXX

Problem

You receive this error when opening your application in Visual Studio .NET:

Error Rendering Control - XXX

An unhandled exception has occurred.

Unable to cast object of type 'System.Web.UI.Page' to type 'BaseClasses.Web.UI.BasePage'.

Visual Studio .NET is unable to recognize the controls created by Iron Speed Designer.

Solution

This error can be ignored.  It is not harmful to your application.

We recommend using Iron Speed Designer to make design-time and page layout changes to your application and using Microsoft Visual Studio to add custom code to your application.  While not required, this approach allows you to use Microsoft Visual Studio’s “Intellisense” feature when adding code customizations which many find streamlines custom code development.

See Also

Part VII:  Troubleshooting Applications

Application Generation and Compilation Error Messages