Hi *.*,
It sounds simple but hard part when implements.Visual studio is giving us a option to set width of header and item template .But it not work !!!! :(
After an war of 1 hour with the help of our designer we achieve it :) .
Done by adding table-layout:fixed to gridview style and define HeaderStyle-Width="xx PX".
Game is over !!!
If u had any trouble just ask, Happy to help u :)
Stay Tune...
Have a nice day... 'N happy Coding :)