CslaDataSource

It does not work to add a CslaDataSource to a page by choosing to “add a new data source” from within the GridView or DetailsView controls. Attempting to do this will result in an exception that prevents the control from displaying properly. I have been unable to resolve this issue, but there is a viable workaround.

You must manually add a CslaDataSource control to your page, either using drag-and-drop from the Toolbox, or by typing the tag into the page. Then you can configure the assembly/type information in the data source control. Then you can choose this data source control as the data source for your GridView or DetailsView control.