DataTable dt = this.GridDataSource as DataTable; // 첫 행 추가 DataRow dr = dt.NewRow(); dt.Rows.InsertAt(dr, 0); dt.Rows[0][this.SelectionCheckBoxFieldName] = "Y"; dt.Rows[0]["ROW_STATE"] = "C"; this.GridDataSource = dt; this.GridDataSource.AcceptChanges();