1)How to set a row in radgrid as active row and take that particular index?
2)How to group three columns under one column in radgrid.
For ex...
Current is main column and under thar price,rate ,qty is der.
You can refer to the following document to have two level headers in your grid which can be obtained by using HTML tables in the HeaderTemplate/ItemTemplate of GridTemplateColumns. Customizing with GridTemplateColumn