Hi pdharmesh,

It has been a while since your post, however in case you still need assistance I would be glad to help.

I am attaching a sample for you which demonstrates how the row selection changed event can be cancelled upon a certain condition. The sample uses the Northwind DB and if the index of the currently selected row is even, the selection of a new row is cancelled.

Below is the javascript code used:

function UltraWebGrid1_BeforeRowDeactivateHandler(gridName, rowId){
   //if the index of current row is even - cancel selection, else proceed
    if (igtbl_getRowById(rowId).getIndex() % 2 == 0) {
        return true;
    } else {
        return false;
    }
}

Hope this helps. Please contact me if you have any questions.