private void btnQuiz_Click(object sender, EventArgs e)
{
if (StudentIndex < RandSID.Count)
{
Mark frmMark = new Mark(RandSID[StudentIndex]);
frmMark.ShowDialog();
StudentIndex++;
}
else
{
MessageBox.Show("û��ѧ����","����",MessageBoxButtons.OK,MessageBoxIcon.Error);
}
}
protected void PopupMark(string pSID)
{
Mark frmMark = new Mark(pSID);
if (!frmMark.IsDisposed)
frmMark.ShowDialog();
}