private void optionsToolStripMenuItem_Click(object sender, EventArgs e)
{
TeacherAccount teacherAccount = new TeacherAccount();
teacherAccount.MdiParent = this;
teacherAccount.Show();
}
private void toolStripAccount_Click(object sender, EventArgs e)
{
if (CheckOpened("TeacherAccount"))
{
Application.OpenForms["TeacherAccount"].BringToFront();
}
else
{
TeacherAccount frm = new TeacherAccount();
frm.Show();
}
}
