private void BtnAdd_Click(object sender, EventArgs e) { if (txtSID.Text == string.Empty || txtSName.Text == string.Empty) { MessageBox.Show("����д����������Ϣ"); return; } StudentBLL bllstu = new StudentBLL(); if (bllstu.GetStudentBySID(txtSID.Text) != null) { MessageBox.Show("�Ѿ����ڸ�ѧ��"); return; } int Rate=0; try { StudentInfo student = new StudentInfo() { SID = txtSID.Text, SName = txtSName.Text, LabClassID = cmbClass.ClassID, Rate = Rate }; if (bllstu.AddStudent(student)) { MessageBox.Show("��ӳɹ�"); } } catch (Exception ex) { MessageBox.Show(ex.Message); } }
private void btnSearch_Click(object sender, EventArgs e) { StudentBLL bstudent = new StudentBLL(); LabClassBLL cls = new LabClassBLL(); stuinfo = bstudent.GetStudentBySID(txtSID.Text); if (stuinfo == null) { MessageBox.Show("û�����ѧ��"); return; } lblSName.Text = stuinfo.SName; cmbClass.BindClass(ClassType.LabClass); cmbClass.ClassID = stuinfo.LabClassID; }