private void 学生选课表Tile_Click(object sender, EventArgs e) { frmStuCou f = new frmStuCou(); //f.MdiParent = this; f.Show(); f.Focus(); }
private void metroTile4_Click(object sender, EventArgs e) { try { if (Convert.ToDecimal(gradeTextBox.Text) < 0 || Convert.ToDecimal(gradeTextBox.Text) > 100) { DialogResult result = MessageBox.Show("对不起,输入成绩无效", "操作提示", MessageBoxButtons.OKCancel, MessageBoxIcon.Information); frmStuCou f = new frmStuCou(); this.Close(); f = new frmStuCou(); f.Show(); f.Focus(); return; } ChangeEnabledState(); this.Validate(); this.stuCouBindingSource.EndEdit(); this.tableAdapterManager.UpdateAll(this.student_Manage_DB); } catch (Exception ex) { DialogResult result = MessageBox.Show("对不起,数据库中无此学号对应的学生/无对应的课程号/重复录入,请检查,添加失败", "操作提示", MessageBoxButtons.OKCancel, MessageBoxIcon.Information); } }