protected void Delete_btn_Click(object sender, EventArgs e)
{
TeacherBLL teachetBll = new TeacherBLL();
Teacher teacher = new Teacher()
{
TId = la_TeaNo.Text.Trim()
};
if (teachetBll.TeacherIsInvigilate(teacher.TId.ToString()))
{
infoAlert("该教师有监考记录， 无法删除");
}
else
{
if (teachetBll.DeleteTeacher(teacher) > 0)
{
ClientScript.RegisterClientScriptBlock(this.GetType(), "succeed", "<script>window.alert('删除成功！');window.location='ManageTeacher.aspx';</script>");
}
}
}