protected void ImageButton_submit_Click(object sender, ImageClickEventArgs e) { if (check()) { ClassBLL classBLL = new ClassBLL(); string className = TextBox_className.Text.Trim(); string depart = DropDownList_depart.SelectedValue.Trim(); string grade = DropDownList_grade.SelectedValue.Trim(); string teacherID = DropDownList_teacher.SelectedValue.Trim(); Class clazz = new Class(); clazz.Depart = depart; clazz.Grade = grade; clazz.Name = className; clazz.StudCount = "0"; clazz.MonitorID = null; clazz.TeacherID = teacherID; classBLL.save(clazz); Response.Write("<script>alert('添加成功!');location.href='addClass.aspx';</script>"); } }