Unable to recognise object in .net application

function Test()

{

  // The script works with the '<Infragistics>\NetAdvantage for .NET <version>\Samples\Win\WinListBar\CS\

  // Appearances CS\bin\Appearances.exe' sample application

  var groupName = "Group Two";

  var itemName = "Item Two";



  var ultraListBar = Sys.Process("Appearances").WinFormsObject("Form1").WinFormsObject("ultraListBar1");



  var group = FindGroupByName(ultraListBar, groupName);

  if (null == group) {

    Log.Error("Group was not found");

    return;

  }



  var item = FindItemByName(group, itemName);

  if (item == null) {

    Log.Error("Item was not found");

    return;

  }



  // Click the item 

  group.Selected = true;

  item.EnsureVisible();

  var groupRect = group.UIElement.ClipRect; 

  var itemRect = item.GetUIElement().Rect;

  var x = groupRect.Left + itemRect.Left + itemRect.Width / 2;

  var y = groupRect.Top + itemRect.Top + itemRect.Height / 2;

  ultraListBar.Click(x, y);

}



function FindGroupByName(ultraListBar, groupName)

{

  var i;



  for(i = 0; i < ultraListBar.Groups.Count; i++)

    if (ultraListBar.Groups.Item(i).Text == groupName)

      return ultraListBar.Groups.Item(i);

  return null;

}



function FindItemByName(group, itemName)

{

  var i;



  for(i = 0; i < group.Items.Count; i++)

    if (group.Items.Item(i).Text == itemName)

      return group.Items.Item(i);

  return null;

}