/// <inheritdoc/>
protected override sealed IndexerDescriptor CreateBindingDescriptor(IndexerDescriptor source)
{
var result = base.CreateBindingDescriptor(source);
// If the binding is a template binding, then complete when the Template changes.
if (source.Priority == BindingPriority.TemplatedParent)
{
var templateChanged = this.GetObservable(TemplateProperty).Skip(1);
result.SourceObservable = result.Source.GetObservable(result.Property)
.TakeUntil(templateChanged);
}
return result;
}