/// <summary>
/// Ensures that newly added categories can navigate to higher legend items.
/// </summary>
/// <param name="item">The newly added legend item.</param>
protected override void OnInclude(IColorCategory item)
{
if (item != null)
{
if (_scheme != null)
{
item.SetParentItem(_scheme.GetParentItem());
}
}
base.OnInclude(item);
}
/// <summary>
/// Updates all of the categories so that they have a parent item that matches the
/// schemes parent item.
/// </summary>
public void UpdateItemParentPointers()
{
foreach (var item in InnerList)
{
item.SetParentItem(_scheme?.GetParentItem());
}
}
