I have ColumnGrouping enabled on a WebHierarchicalGridView that is databound to a DataSet containing a single DataTable.  When I dropped a column into the group area, I get a nice breadcrumb-like display of my grouped columns.  It appears to be the Grid name and then a list of the grouped columns.  For mine, it initially said "Table1 > ColumnName".  I've attached a screenshot of the column grouping area I'm talking about.

I want to be able to change the "Table1" text, so I figured I could set the TableName of the DataTable I used to bind the WebHierarchicalDataGrid.  And it worked!  If I set DataTable.TableName = "NameOfGrid", I'd see the text changed to "NameOfGrid > ColumnName".

However, I need to change the datasource on demand.  So in code-behind I do a bunch to clear out the grid's state (GridView.ClearDataSource(), DataSource = null/DataBind(), GroupedRows.Clear(), GroupedColumns.Clear(), etc) and regenerate a new DataTable, set its TableName to something new, and rebind.  But when I group columns again, the old TableName is still shown in the grouped column area.

How do I clear/change the text used in this part of the grid?  It appears to be initially set from my DataTable.TableName property, but once set, it's never changed, no matter what I do with the underlying dataset.

Again, I've attached a screenshot of what I'm talking about.  Any insight is greatly appreciated!!