Regarding your first questions: You could achieve your scenario by saving the returned data in a Session
variable as shown in the example below.
obj = Session[
// Instead of static creation of data you could
// retrieve it once from the database.
DataTable table =
Regarding your second questions: The first cell could be selected as shown below. Note that the firstColumnIndex
could very and you should investigate and check which is the first column index.
firstColumnIndex = 1;
TableCell cell = RadGrid1.SelectedItems.Cells[firstColumnIndex];
the Telerik team
If you want to get updates on new releases, tips and tricks and sneak peeks at our product labs directly from the developers working on the RadControls for ASP.NET AJAX, subscribe to their blog feed