I have a radgrid for which I have created a filter template that contains a radsearchbox which works as expected.
If the column is hidden (display=false) when the grid is first rendered and then subsequently unhidden, the searchbox is not rendering correctly. The empty message , as well as anything that is typed in the box is truncated to about a character. It does give correct results.
After the first refresh it is fine and remains so even when hidden/unhidden later.