/// <summary>
/// 按年级查询(调用窗体)
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void tsmiBygrade_Click(object sender, EventArgs e)
{
FrmSearchStudentByGrade frm = new FrmSearchStudentByGrade();
frm.MdiParent = this;
frm.Show();
}
public FrmSearchStudentByGrade()
{
InitializeComponent();
frmSearchStudentByGrade = this;
}