1 . is there any way i can keep the groupbyheader column expanded (the header covers all the column) like the one in the example below . http://demos.telerik.com/silverlight/#GridView/Aggregates
2. Is there any way i can keep the column header only at the top of the grid not on every grouped by row. like the example given in this link http://demos.telerik.com/silverlight/#GridView/Aggregates
Hello,
1. By default row expansion is turned off, which you can turn on by handling GroupByCollectionChanged event and the property is 'IsExpanded', for example:
if (e.NewGroupedColumns != null && e.NewGroupedColumns.Count > 0){ foreach (Row r in this.xamGrid1.Rows) { r.IsExpanded = true; }}
2. The row header (parent/child) can be hidden, but currently the grid does not have a way to display only one header. If you consider hiding it use 'ColumnLayout.HeaderVisibility' property. As far as displaying only one header, I can submit it as a feature request on your behalf.
Let me know if you have any questions.
Thank you,Sam