Public Function GetNext() As Command

private void UseGetNextButton_Click(object sender, EventArgs e)
    {
      if (theApp == null || theApp.ActivePartProgram == null)
      {
        AddMessage(@"UseGetNextButton_Click: theApp == null || theApp.ActivePartProgram == null)");
        return;
      }

      AddMessage(@" ");
      AddMessage(@"---------------------------------------------------------------------------");

      var commands = theApp.ActivePartProgram.Commands;
      var startCommand = commands.Item(1);
      var count = 0;
      var iterCommand = startCommand.GetNext();
      int startHiPart = 0;
      int startLoPart = 0;
      startCommand.GetUniqueID(ref startHiPart, ref startLoPart);
      var methodName = @"GetNext()";
      AddMessage($@"Using {methodName} method. StartCommand <{startCommand.TypeDescription}> Uid<{startHiPart}:{startLoPart}>");

      while (iterCommand != null)
      {
        count++;
        CompareCommands(iterCommand, methodName, count, startCommand, startHiPart, startLoPart);
        iterCommand = iterCommand.GetNext();
      }

      AddMessage(@"---------------------------------------------------------------------------");
      AddMessage(@" ");

      GC.Collect();
    }