public int IndexOf(T item)
{
try
{
var lvi = BaseItemsEnumerable.Where(x => x.Tag == item).First();
return(BaseItems.IndexOf(lvi));
}
catch (Exception)
{
return(-1);
}
}
/// <summary>
/// Focuses the next item.
/// </summary>
/// <param name="item">The current item.</param>
/// <param name="forward">if set to <c>true</c>, moves to the next item, otherwise moves to the previous item.</param>
/// <returns><c>true</c> on success, <c>false</c> otherwise.</returns>
protected bool FocusNextItem(ButtonListItem <T> item, bool forward)
{
if (BaseItems.Count > 0)
{
var idx = -1;
if (item != null && (idx = BaseItems.IndexOf(item)) == -1)
{
throw new ArgumentOutOfRangeException(nameof(item));
}
idx = GetNextEnabledItemIndex(idx, forward);
if (idx != -1)
{
SetFocused(idx);
return(true);
}
}
return(false);
}
