private void ලකනයToolStripMenuItem1_Click(object sender, EventArgs e)
        {
            competition_list cl = competition_list.getInstance();

            cl.MdiParent = this;
            cl.Show();
            cl.WindowState     = FormWindowState.Maximized;
            cl.FormBorderStyle = FormBorderStyle.FixedSingle;
        }
 public static competition_list getInstance()
 {
     if (inst4 == null || inst4.IsDisposed)
     {
         inst4 = new competition_list();
         return(inst4);
     }
     else
     {
         return(inst4);
     }
 }