DataTable tbl=new DataTable;
DataColumn ID=new
Datacolumn("ID",System.Type.GetType("System.Int"));
DataColumn Name=new
DataColumn("NAME",System.Type.GetType("System.String"));
tbl.Columns.add("ID");
tbl.Columns.Add("NAME");
Datarow dr =null;;
for (int i=0;i<100;i++)
{
dr=tbl.NewRow();
}
datagridview1.datasource=tbl;