I could do Multi Column Sorting , by setting clicking the Column header s , but i want to do it Programatically without clicking the RadGrid Column headers ..
You can manipulate the grid sort programmatically by creating instances of the GridSortExpression class and adding them to the SortExpressions
collection.When the grid is first loaded on the page, it is sorted based on the GridSortExpression objects in the SortExpressions collection. If the
SortExpressions collection contains multiple GridSortExpression objects, the table view is sorted first by the first
GridSortExpression in the collection, then by the second GridSortExpression in the collection, and so on.