private static object CoerceCanReorder(DependencyObject d, object value)
{
NavigationPaneOptions w = d as NavigationPaneOptions;
return(w.navigationPane.ItemsSource == null);
}
private void ShowOptions()
{
if (RaiseConfigureWindowOpenedEvent())
{
NavigationPaneOptions o = new NavigationPaneOptions(this);
o.Owner = Window.GetWindow(this);
bool? result = o.ShowDialog();
if (result.HasValue && result.Value == true)
{
if (o.CanReorder)
{
DependencyObject[] items = new DependencyObject[Items.Count];
Items.CopyTo(items, 0);
Items.Clear();
}
ObservableCollection<NavigationPaneOptions.NavigationPaneOptionsData> data = o.Items;
foreach (NavigationPaneOptions.NavigationPaneOptionsData itemData in data)
{
DependencyObject item = itemData.item as DependencyObject;
if (o.CanReorder)
Items.Add(item);
SetIsItemExcluded(item as DependencyObject, !itemData.IsNotExcluded);
}
InvalidateMeasure();
}
}
}