Thanks for help me..
i just changed the way to export an excel report, i change the native radgrid export to excel ML settings to a open source library called NPOI, and now i can export one dataset with multiple tables on it (each one retrieved from any table open via hiearchy radgrid), so that point is solved.
Now, the second one is to insert a tool tip into one or many tables (grids), derived by the master tablegrid, the grid was created by template and filled by code. Something like this.
Radgrid1.Datasource = ds;
and for the derivated grids, something like this:
source, GridDetailTableDataBindEventArgs e)
GridDataItem dataItem = (GridDataItem)e.DetailTableView.ParentItem;
e.DetailTableView.Datasource = ds2
This is an example of my code...
Thanks for the help..