sort

Method which triggers sort command for the column with DataField (set on the server) passed as an argument. If you set AllowMultiColumnSorting to true server-side, each subsequent call to this method will sort the corresponding column. All server-side sorting capabilities of RadGrid are applicable here as well. See the topic describing the fireCommand() client-side method for further details.

sort(sortExpression)
sortExpression	String	The DataField of the column to be sorted.

Example:

            function SortColumnContactName() {
                var masterTable = $find("<%= RadGrid1.ClientID %>").get_masterTableView();
                masterTable.sort("ContactName");
            }