make search with multiple textboxes in DataGrid

make search with multiple textboxes in DataGrid

Hi,
i have 2 textboxes for filtering gridview.First one is name second one is surname.
I wannto make grid search dynamically with 2 textboxes.It should be like that,
first i wrote a word in name textbox then it filter the gridview.Then i wrote a word in surname textbox it should filter  the textboxname results.
Thanks..