title: Possible to insert some text String into filter text area
body: <p>I have a <code>ListGrid</code> and above each column of data, there is a filter box. I can manually some text in there and press Filter to filter. How can i insert some text into a filter box with some sort of method in the code? I want to get a filter box above a column, then insert a certain String text in it, so the user can just press the Filter button instead of typing it in themselves. </p>