public void delete_sel(DataGridView data_gv) { DialogResult dr = MessageBox.Show("确定删除吗", "提醒", MessageBoxButtons.OKCancel); if (data_gv.SelectedRows.Count > 0) { for (int i = 0; i < data_gv.SelectedRows.Count; i++) { data_gv.Rows.RemoveAt(data_gv.SelectedRows[i].Index); SelItemsDAO ma = new SelItemsDAO(); ma.update_delete(); } } }