The InPlace edit mode brings me to an empty grid with the text "No records to display.". (Both the double click as the GridEditCommandColumn button.
See below my aspx code on the RadGrid, what am I missing?
Try setting the SelectFields collection in the GroupByExpressions. You have only set the GroupByFields collection in the GridGroupByExpression.After inspecting your code, i saw you populating the RadGrid with both NeedDataSource and SqlDataSource, I suggest you to use any one of the data binding method.