I figured out the problem. I was using an old version which didn't support this feature yet. But the problem I am now having is that after I filter, I cannot select a row. My custom Command button stopped working.. Any ideas? how do we select a single row after filtering..
On my grid I have
.Selectable(s => s.Mode(GridSelectionMode.Single))
But this isn't working. And I am also getting another error which says
Object doesn't support property or method 'delayedClick'