private void ackbtn_Click(object sender, EventArgs e)
{
DataClasses1DataContext db = new DataClasses1DataContext();
exam examinfo = new exam();
examinfo.id = idbox.Text;
examinfo.course_id = idbox.Text;
examinfo.exam_address = addressbox.Text;
examinfo.exam_time = datetime.Value.Date;
db.exam.InsertOnSubmit(examinfo);
try { db.SubmitChanges(); MessageBox.Show("提交成功"); }
catch { MessageBox.Show("提交失败"); }
}
partial void Deleteexam(exam instance);
partial void Updateexam(exam instance);
partial void Insertexam(exam instance);