private void control_Resize(object sender, EventArgs e)
 {
     Elipse.Apply(this.control, this.size);
     if (this.eventHandler != null)
     {
         this.eventHandler(sender, e);
     }
 }
 public void ApplyElipse()
 {
     try
     {
         if (this.control != null)
         {
             Elipse.Apply(this.control, this.size);
         }
     }
     catch (Exception)
     {
         MessageBox.Show("Lỗi sủ lý FormEclipse");
     }
 }