ExtendedDataGrid mygrid = new ExtendedDataGrid();
System.Data.DataTable mytable = new System.Data.DataTable();
mytable.Columns.Add("col1", System.Type.GetType("System.String"));
mytable.Columns.Add("col2", System.Type.GetType("System.String"));
System.Data.DataRow dr = null;
dr = mytable.NewRow();
dr[0] = "item1";
dr[1] = "item2";
mytable.Rows.Add(dr);
mygrid.DataSource = mytable;
mygrid.Size = this.Size;
this.Controls.Add(mygrid);