YesNO_Dialogs simplified.

    // Simply send it a text string to display.
    // False == NO, True == Yes! & default button number 1.
    static public bool YesNoDlg(string text)
    { return YesNoDlg(text, 1); }
    // Overloaded method below...
    static public bool YesNoDlg(string text, int defaultButton)
    // Excellent: ReUse This For ALL such. (GASIT Standard)
    {
      const string msg = "User Input Required";
      bool flag;
      if (defaultButton == 1)
      { // If only string is passed, defaults to this...
        flag = MessageBox.Show(
          text, msg,
          MessageBoxButtons.YesNo,
          MessageBoxIcon.Question,
          MessageBoxDefaultButton.Button1 // YES!
                 ) != DialogResult.No;
      }
      else
      {
        if (defaultButton == 2)
        {
          flag = MessageBox.Show(
            text, msg,
            MessageBoxButtons.YesNo,
            MessageBoxIcon.Question,
            MessageBoxDefaultButton.Button2 // NO!
                   ) != DialogResult.No;
        }
        else
        {
          flag = MessageBox.Show(
            text, msg,
            MessageBoxButtons.YesNo,
            MessageBoxIcon.Question,
            MessageBoxDefaultButton.Button3 // Cancel?
                   ) != DialogResult.No;
        }
      }
      return flag;
    }