protected void ImageButton_delete_Click(object sender, ImageClickEventArgs e)
{
ImageButton imageButton = sender as ImageButton;
string id = imageButton.CommandArgument;
ClassBLL classBLL = new ClassBLL();
StudentBLL stuBLL = new StudentBLL();
UserBLL userBLL = new UserBLL();
Student stu = stuBLL.get(id);
User user = userBLL.get(stu.UserID);
stuBLL.delete(stu);
userBLL.delete(user);
Class clazz = classBLL.get(stu.ClassID);
clazz.StudCount = (Convert.ToInt32(clazz.StudCount) - 1).ToString();
classBLL.update(clazz);
Response.Write("<script>alert('删除成功！');location.href='showStudents.aspx';</script>");
}
