How to place Control at column header

[Rahul83]

Hi friends, As per requirement I am supposed to place data grid on windows form which have a Filter creteria..My problem is that I have three columns in a grid and filter functionality have to be provided on the basis of contents in all the three columns..so i have to place three comboboxes below column header(one for each column..so that user can choose value from combobox specific to that column and perform filtering).I m facing a problem with placing Comboboxes at required position..i.e below column header,so ithat it look like that three comboboxes are at first row of grid..Reply Soon..plz