protected override void UnregisterResource(string name)
{
Guard.ArgumentNotNullOrEmpty(name, "name");
lock (_lock)
{
// contains checks
if (!_resources.ContainsKey(name))
{
throw new KeyNotFoundException(string.Format(RESOURCE_NOTFOUND, typeof(T), name));
}
// we get the locator and dispose it to release any resources
IResourceLocator _locator = _resources[name];
if (_locator != null)
{
_locator.Dispose();
}
// and remove, and change the default resource name
_resources.Remove(name);
if (string.Equals(_defaultResourceName, name, StringComparison.InvariantCultureIgnoreCase))
{
_defaultResourceName = null;
}
// notify collection changed
var _collectionChanged = CollectionChanged;
if (_collectionChanged != null)
{
_collectionChanged(this,
new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Remove, _locator, -1));
}
}
}