C# DGV多行选择

DGV多行选择

 //对每项进行删除
                    for (int i = 0; i < dgvYuanGong.Rows.Count; i++)
                    {
                        if ((bool)dgvYuanGong.Rows[i].Cells["xd"].EditedFormattedValue == true)
                        {
                            myXiTong_YuanGongXinXi.YuanGongID = int.Parse(dgvYuanGong.Rows[i].Cells["YuanGongID"].Value.ToString().Trim());
                            BLL_RenLiZiYuan.YuanGongXinXi.DeleteYuanGongXinXi(myXiTong_YuanGongXinXi);
                        }
                    }

if (MessageBox.Show("确定删除这 " + dgv_HeTong_YuanGong.SelectedRows.Count.ToString() + " 条数据？", "温馨提示", MessageBoxButtons.OKCancel, MessageBoxIcon.Information) == DialogResult.OK)
                {
                    Cursor.Current = Cursors.WaitCursor;
                    //循环删除选中数据
                    for (int i = dgv_HeTong_YuanGong.SelectedRows.Count; i > 0; i--)
                    {
                        try
                        {
                            MyRLZY_HeTong_YuanGong = new Model.RLZY_HeTong_YuanGong();
                            MyRLZY_HeTong_YuanGong.YuanGongHeTongID = Convert.ToInt32(dgv_HeTong_YuanGong.SelectedRows[0].Cells["YuanGongHeTongID"].Value.ToString().Trim());
                            BLL_RenLiZiYuan.HeTongGuanLi.Delete_YuanGongHeTong(MyRLZY_HeTong_YuanGong);
                            dgv_HeTong_YuanGong.Rows.Remove(dgv_HeTong_YuanGong.SelectedRows[0]);
                        }
                        catch { }
                    }

                    Cursor.Current = Cursors.Default;