Merge Same Data Column in DataGridView windows C#

Question

Hi
I have some data and i want to Merge Same Data Column in grid Like bellow
From :

Id	Name	ItemToBuy
1	mike	Toshiba portage
1	mike	Dell Latitude
2	nancy	Toshiba portage
2	nancy	Sony vioa
3	rosa	Asus
3	rosa	Hp
4	farid	Sony vioa

 //------------------------------------------------------Show in grid like bellow                                                     

Id	Name	ItemToBuy
1	mike	Toshiba portage
		Dell Latitude
2	nancy	Toshiba portage
		Sony vioa
3	rosa	Asus
		Hp
4	farid	Sony vioa