/// <summary>
/// Handles changes to the Parent property.
/// </summary>
private static void OnParentCollectionChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
FilterControl target = (FilterControl)d;
IEnumerable oldParent = (IEnumerable)e.OldValue;
IEnumerable newParent = (IEnumerable)e.NewValue;
target.OnParentCollectionChanged(oldParent, newParent);
}
/// <summary>
/// Handles changes to the FilterInitializersManager property.
/// </summary>
private static void OnFilterInitializersManagerChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
FilterControl target = (FilterControl)d;
if (!isInDesignMode && target.Model != null)
{
throw new InvalidOperationException("Change Key after FilterControl was attached to FilterPresenter not allowed.");
}
FilterInitializersManager oldFilterInitializersManager = (FilterInitializersManager)e.OldValue;
FilterInitializersManager newFilterInitializersManager = (FilterInitializersManager)e.NewValue;
target.OnFilterInitializersManagerChanged(oldFilterInitializersManager, newFilterInitializersManager);
}
/// <summary>
/// Handles changes to the Key property.
/// </summary>
private static void OnKeyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
FilterControl target = (FilterControl)d;
if (!isInDesignMode && target.Model != null)
{
throw new InvalidOperationException("Change Key after FilterControl was attached to FilterPresenter not allowed.");
}
string oldKey = (string)e.OldValue;
string newKey = (string)e.NewValue;
target.OnKeyChanged(oldKey, newKey);
}
/// <summary>
/// Handles changes to the Model property.
/// </summary>
private static void OnModelChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
FilterControl target = (FilterControl)d;
FilterControlVm oldModel = (FilterControlVm)e.OldValue;
if (oldModel != null)
{
oldModel.Dispose();
oldModel.StateChanged -= target.OnStateChanged;
target.ItemsSource = null;
}
FilterControlVm newModel = target.Model;
if (newModel != null)
{
newModel.StateChanged += target.OnStateChanged;
target.ItemsSource = newModel;
target.SetVisualState(newModel.State);
}
target.OnModelChanged(newModel);
}