/// <summary>
/// Called when the TopAppBar is changed.
/// </summary>
protected virtual void OnTopAppBarChanged(ReactiveAppBar oldTopAppBar, ReactiveAppBar newTopAppBar)
{
topAppBarDisposable.Dispose();
if (oldTopAppBar != null)
{
oldTopAppBar.DataContext = null;
}
if (newTopAppBar != null)
{
newTopAppBar.PlacementMode = PlacementMode.Top;
newTopAppBar.HorizontalAlignment = HorizontalAlignment.Stretch;
newTopAppBar.VerticalAlignment = VerticalAlignment.Top;
if (newTopAppBar.DataContext == null)
{
newTopAppBar.SetBinding(ReactiveAppBar.DataContextProperty, dataContextBinding);
}
if (areAppBarsregistered)
{
topAppBarDisposable = ReactiveAppBarManager.Instance.AddAppBar(newTopAppBar);
}
}
}
