using nsScrollBar = Infragistics.Win.UltraWinScrollBar;

this.ultraListView1.CreationFilter = new DisabledScrollbarCreationFilter( Orientation.Horizontal );

#region DisabledScrollbarCreationFilter
public class DisabledScrollbarCreationFilter : IUIElementCreationFilter
{
    private Orientation orientation = Orientation.Horizontal;

    public DisabledScrollbarCreationFilter( Orientation orientation )
    {
        this.orientation = orientation;
    }

    #region IUIElementCreationFilter Members

    void IUIElementCreationFilter.AfterCreateChildElements(UIElement parent)
    {
        if ( parent is UltraListViewUIElement )
        {
            foreach( UIElement element in parent.ChildElements )
            {
                nsScrollBar.ScrollBarUIElement scrollBarElement = element as nsScrollBar.ScrollBarUIElement;
                if ( scrollBarElement != null && scrollBarElement.Orientation == this.orientation )
                {
                    scrollBarElement.Enabled = false;
                    break;
                }
            }

        }
    }

    bool IUIElementCreationFilter.BeforeCreateChildElements(UIElement parent)
    {
        return false;
    }

    #endregion
}
#endregion DisabledScrollbarCreationFilter