I had a problem where I needed to find which filter item I have chosen from the filter drop down. It's easy to get this from server side:
But it seemed pretty difficult to find it from cilent side. In the end, I managed to find it. I used the "BeforeRowFilterApplied" client side event :
function UltraWebGrid1_BeforeRowFilterApplied(gridName, oColumn)
It returned the filter item item (operand) that has been selected. I stored it inside the text field "tbFilterOperand" for later use.