Hi Tacho,

Thanks for your prompt respond.

I have 1 drop down when i select the value from that drop down and click on search button grid is populated.

now i have done some code changes in design side.

function sort() {
debugger;
var grid = $find("wdGrid_PSTS");
// Sort column by calling sortColumn method and passing in the column and the sort direction
// Sort direction is 0, 1, or 2 for none, ascending, or descending.
grid.get_behaviors().get_sorting().sortColumn(grid.get_columns().get_columnFromKey("Id"), 1, false);
grid.get_behaviors().get_sorting().sortColumn(grid.get_columns().get_columnFromKey("PSTName"), 1, false);
grid.get_behaviors().get_sorting().sortColumn(grid.get_columns().get_columnFromKey("UserName"), 1, false);
}

Now value is sorting but new issue had occurred which is that when i select other value from the dropdown grid is not getting clear and irrespective any value selecting from drop down same value is pertain until i refresh the page .

Please suggest.