private void button3_Click(object sender, EventArgs e)
{
if (MessageBox.Show("是否删除该部门？", "提示", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes)
{
if (db.DeleteDepartment(int.Parse(lbDepartment.SelectedValue.ToString())) == -1)
{
MessageBox.Show("删除失败，该部门已被使用！");
return;
}
FormSetting_Load(sender, e);
}
}