//删除教师 private void button11_Click(object sender, EventArgs e) { if (MessageBox.Show("确定要删除吗?", "询问", MessageBoxButtons.YesNo) == DialogResult.Yes) { bool isDeleteOk = true; TeacherBusiness teaBusiness = new TeacherBusiness(); DataGridViewSelectedRowCollection toBeDeletedRowsCollection = this.dataGridView2.SelectedRows; DataGridViewRow[] tobedeletedrows = new DataGridViewRow[toBeDeletedRowsCollection.Count]; toBeDeletedRowsCollection.CopyTo(tobedeletedrows, 0); foreach (DataGridViewRow temp in tobedeletedrows) { if (teaBusiness.deleteTeacher(int.Parse(temp.Cells["tid"].Value.ToString())) == 0) isDeleteOk = false; } if (isDeleteOk) { MessageBox.Show("删除成功!"); } else { MessageBox.Show("删除出现错误,请刷新列表后重试!"); } } }