DataTable dt = new DataTable();
dt.Columns.Add("Room Course ");
dt.Columns.Add("Room Course ");
dt.Columns.Add("Room Course ");

Add value to data table:

dt.Rows.Add(11,21,31);
dt.Rows.Add(12,22,32);
.
.
And bind you grid view:
GridView1.DataSource = dt;
GridView1.DataBind();

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TRY这... :)



如何在C＃，ASP.NET中以编程方式创建DataTable？ [ ^ ]

TRY THIS...:)

How to Create DataTable Programmatically in C#, ASP.NET ?[^]