private void අලතනඑකකරනනToolStripMenuItem_Click(object sender, EventArgs e)
{
Add_new_student ans = Add_new_student.getInstance();
//ans.MdiParent = this;
ans.Show();
//ans.WindowState = FormWindowState.Maximized;
//ans.FormBorderStyle = FormBorderStyle.FixedSingle;
}
public static Add_new_student getInstance()
{
if (inst7 == null || inst7.IsDisposed)
{
inst7 = new Add_new_student();
return(inst7);
}
else
{
return(inst7);
}
}