private void UnHookNotifyChildPropertyChangedHandler(NotifyChildPropertyChangedEventHandlerDescriptor handlerDescriptor)
{
object currentValue = handlerDescriptor.Reference.Target;
if (currentValue != null)
{
NotifyPropertyChangedAccessor.RemoveChildPropertyChangedHandler(currentValue, handlerDescriptor.Handler);
}
}
private void HookNotifyChildPropertyChangedHandler(object instance, string locationName)
{
object currentValue = instance as INotifyPropertyChanged;
if (currentValue != null &&
instrumentedTypes.GetOrAdd(currentValue.GetType(), type => type.IsDefined(typeof(NotifyPropertyChangedAttribute), true)))
{
string locationNameClosure = locationName;
NotifyChildPropertyChangedEventHandlerDescriptor handlerDescriptor = new NotifyChildPropertyChangedEventHandlerDescriptor(
currentValue, (_, a) => this.NotifyChildPropertyChangedEventHandler(locationNameClosure, a));
this.notifyChildPropertyChangedHandlers.AddOrUpdate(locationNameClosure, handlerDescriptor);
NotifyPropertyChangedAccessor.AddChildPropertyChangedHandler(currentValue, handlerDescriptor.Handler);
}
}
private void UnHookNotifyChildPropertyChangedHandler( NotifyChildPropertyChangedEventHandlerDescriptor handlerDescriptor )
{
object currentValue = handlerDescriptor.Reference.Target;
if ( currentValue != null )
{
NotifyPropertyChangedAccessor.RemoveChildPropertyChangedHandler( currentValue, handlerDescriptor.Handler );
}
}
private void HookNotifyChildPropertyChangedHandler( object instance, string locationName )
{
object currentValue = instance as INotifyPropertyChanged;
if (currentValue != null &&
instrumentedTypes.GetOrAdd(currentValue.GetType(), type => type.IsDefined(typeof(NotifyPropertyChangedAttribute), true)))
{
string locationNameClosure = locationName;
NotifyChildPropertyChangedEventHandlerDescriptor handlerDescriptor = new NotifyChildPropertyChangedEventHandlerDescriptor(
currentValue, ( _, a ) => this.NotifyChildPropertyChangedEventHandler( locationNameClosure, a ) );
this.notifyChildPropertyChangedHandlers.AddOrUpdate( locationNameClosure, handlerDescriptor );
NotifyPropertyChangedAccessor.AddChildPropertyChangedHandler( currentValue, handlerDescriptor.Handler );
}
}
