I am trying to use the AJAX Cascading Drop Down in my web application.  When I try to edit the databinding in Visual Studio 2005 for the control, I get error stating, "Error invoking '&Edit DataBindings...'.  Details: The method or operation is not implemented."

 If I try to click on "Add CascadingDropDown page method" on the Tasks menu, I get the Ajax Control Toolkit error, "Connot create page method "GetDropDownContents" because no CodeBehind or CodeFile file was found!"

 
Other AJAX components are working fine on the page.  Am I missing something in the toolkit installation or am I trying to use the control incorrectly?  Any help is appreciated.
 

Hi Pacasp,

PacASP:

I am trying to use the AJAX Cascading Drop Down in my web application.  When I try to edit the databinding in Visual Studio 2005 for the control, I get error stating, "Error invoking '&Edit DataBindings...'.  Details: The method or operation is not implemented."

 If I try to click on "Add CascadingDropDown page method" on the Tasks menu, I get the Ajax Control Toolkit error, "Connot create page method "GetDropDownContents" because no CodeBehind or CodeFile file was found!"

Here is a pretty good video tutorial for CascadingDropDown.  Please watch it carefully. Also you can refer to this article. Its amazing.

Best regards,

Jonathan

Thanks for the links.  The second is proving invaluable.