protected override IElement OnBuild(IElementContext context)
{
IElementParent parent = OnBuildParent(context);
OnBuildChildren(parent, context);
return(parent);
}
/// <summary>
/// Initializes a new instance of the <see cref="ElementCollection"/> class.
/// </summary>
/// <param name="owner">The parent of this collection.</param>
public ElementCollection(IElementParent owner)
{
this.owner = owner;
if (owner is ElementBase e)
{
this.composite = new ObservableComposite <IList <Vertex> >(MakeVerticesObservable(e));
}
else
{
this.composite = new ObservableComposite <IList <Vertex> >(Observable.Never <IList <Vertex> >());
}
}
protected virtual void OnBuildChildren(IElementParent parent, IElementContext context)
{
if (parent == null)
{
throw new ArgumentNullException(nameof(parent));
}
for (int i = 0; i < m_children.Count; i++)
{
ElementBuilderAsset builder = m_children[i];
IElement child = builder.Build(context);
parent.Children.Add(child);
}
}
