On DataGrid RowSelect, Navigate to /edit-request{Id}

Cant figure this out.

This error means that there is an argument type mismatch. Can you paste the generated code from the Edit Request page? Alternatively as a Radzen Professional user you can send us your application to info@radzen.com - just delete the server\bin, server\wwwroot and server\obj directories, zip the application directory and send it over email.