There is 2 things that could be done.
1) Create a style in code for the HierarchicalGroupByControl, in which you set the Visibility to Collapsed, then add the Style to the newly created DataGridControl's Resources collection ( set the key as typeof( HierarchicalGroupByControl ) ). This way, the implicit style will only affect the DataGridControl in question.
2) Create a new View instance on which you set the UseDefaultHeadersFooters property to "False", then add a new DataTemplate in its FixedHeaders for the ColumnManagerRow. Assign the View to the DataGridControl and there will be no HierarchicalGroupByControl.
Marc Laroche
Software Developer
Xceed Software Inc.I don’t suffer from insanity, I enjoy every minute of it. - Unknown