//Checks the see if the user has saved. If so the program closes as normally. Otherwise the warning window displays.
 private void exitToolStripMenuItem_Click(object sender, EventArgs e)
 {
     if (has_Saved)
     {
         Close();
     }
     else
     {
         warning warning_Window = new warning();
         warning_Window.Show();
         warning_Window.Controls[1].Click += close;
     }
 }
 /// <summary>
 /// If the user closes the program without saving, this function creates a new form warning
 /// them. If the user has saved, the program closes as normal.
 /// </summary>
 /// <param name="sender"></param>
 /// <param name="e"></param>
 private void warning(object sender, FormClosingEventArgs e)
 {
     if (e.CloseReason == CloseReason.UserClosing)
     {
         if (has_Saved)
         {
             e.Cancel = false;
         }
         else
         {
             e.Cancel = true;
             warning warning_Window = new warning();
             warning_Window.Owner              = this;
             warning_Window.StartPosition      = FormStartPosition.CenterParent;
             warning_Window.Controls[1].Click += close;
             warning_Window.ShowDialog();
         }
     }
 }