/// <summary>
/// Handle the event wiring and scheme update for the new categories.
/// </summary>
/// <param name="categories">The category collection to update</param>
protected virtual void OnIncludeCategories(LineCategoryCollection categories)
{
if (categories == null)
{
return;
}
categories.Scheme = this;
categories.ItemChanged += CategoriesItemChanged;
categories.SelectFeatures += OnSelectFeatures;
categories.DeselectFeatures += OnDeselectFeatures;
}
/// <summary>
/// Overrides the default OnCopy behavior to remove the duplicte SelectFeatures event handler
/// </summary>
/// <param name="copy"></param>
protected override void OnCopy(CopyList <ILineCategory> copy)
{
LineCategoryCollection lcc = copy as LineCategoryCollection;
if (lcc != null && lcc.SelectFeatures != null)
{
foreach (var handler in lcc.SelectFeatures.GetInvocationList())
{
lcc.SelectFeatures -= (EventHandler <ExpressionEventArgs>)handler;
}
}
base.OnCopy(copy);
}
private void Configure()
{
_categories = new LineCategoryCollection();
InitializeCategories();
}
