I created a filter web part by extending the ITransformableFilterValues interface, similar to this page: MSDN. I want to mimic the Microsoft query string filter and display the connection information while a page is being edited. For example, the query string filter contains the name of the web part being filtered and the parameter(s) being passed. I looked at all the members in the WebPart class and couldn't find what I was looking for. Any help would be appreciated. Regards.