/// <summary>
/// Clean up.
/// </summary>
protected override void OnDispose()
{
if (this.ShapeElement != null)
{
Unsubscribe();
}
for (int i = this.nestedChildItems.Count - 1; i >= 0; i--)
{
BaseDiagramItemElementViewModel vm = nestedChildItems[i];
this.RemoveNestedChild(vm);
vm.Dispose();
}
for (int i = this.relativeChildItems.Count - 1; i >= 0; i--)
{
BaseDiagramItemElementViewModel vm = relativeChildItems[i];
this.RemoveRelativeChild(vm);
vm.Dispose();
}
this.ShapeElement = null;
this.parentItem = null;
base.OnDispose();
}
/// <summary>
/// Called whenever a relationship of type NodeShapeReferencesRelativeChildren is removed and
/// the element hosted by this model is the source.
/// </summary>
/// <param name="args"></param>
protected virtual void OnRelativeChildShapeElementRemoved(ElementDeletedEventArgs args)
{
NodeShapeReferencesRelativeChildren con = args.ModelElement as NodeShapeReferencesRelativeChildren;
NodeShape nodeShape = con.ChildShape;
if (nodeShape != null)
{
for (int i = this.relativeChildItems.Count - 1; i >= 0; i--)
{
if (this.relativeChildItems[i].ShapeElement.Id == nodeShape.Id)
{
BaseDiagramItemElementViewModel vm = this.relativeChildItems[i];
this.RemoveRelativeChild(vm);
vm.Dispose();
}
}
}
}