private void btnSave_Click(object sender, EventArgs e) { group.GroupName = txtGroupName.Text; try { groupBll.UpdateByGroup(group); MessageBox.Show("修改成功"); DataGridView dgv = (DataGridView)(form.Controls["panel1"].Controls["groupBox5"].Controls["dgvGroupList"]); dgv.DataSource = groupBll.FindAllInfo(); this.Close(); } catch (Exception ex) { MessageBox.Show("修改分组名称错误:" + ex.Message); } }