It looks as if there is no `IsLoaded` property in a `UserControl` object in XAML, even if the `Loaded` event is there.

But the [MSDN page on IsLoaded](http://msdn.microsoft.com/en-us/library/system.windows.frameworkelement.isloaded%28v=vs.110%29.aspx) tells that it should be there since `UserControl` derives from `FrameworkElement`.

So I guess it was removed in XAML (the doc is for WPF). But I can't believe they just deleted it in WinRT, they must have replaced it with something else?

**So, question**:
How do I gain access to the `IsLoaded` boolean of a `UserControl` in WinRT?

Of course, it is always possible to do it by hand on every user control by registering a callback on the `Loaded` event, but it is a pain for such a simple thing.