Window Gridview cell merge in C#.net

How can I merge equal cell values of Gridview in C#.net window f开发者_开发问答orm. Should I use two grid views?

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I found the answer for me :) here is the one what I found..

http://www.atmarkit.co.jp/fdotnet/dotnettips/593dgvgroupedcell/dgvgroupedcell.html