private static void VerifyNotRegistered(DependencyPropertyHashKey key, DependencyProperty dependencyProperty)
{
DependencyProperty registeredDependencyProperty;
if (registeredProperties.TryGetValue(key, out registeredDependencyProperty))
{
throw new Granular.Exception("Can't register dependency property \"{0}\", Type \"{1}\" already has a dependency property with the same name \"{2}\"", dependencyProperty, key.Owner.Name, registeredDependencyProperty);
}
}
private IDependencyPropertyValueEntry GetInitializedReadOnlyValueEntry(DependencyProperty dependencyProperty)
{
IDependencyPropertyValueEntry readOnlyEntry;
if (readOnlyEntries.TryGetValue(dependencyProperty, out readOnlyEntry))
{
return(readOnlyEntry);
}
readOnlyEntry = new ReadOnlyDependencyPropertyValueEntry(GetInitializedValueEntry(dependencyProperty));
readOnlyEntries.Add(dependencyProperty, readOnlyEntry);
return(readOnlyEntry);
}
public bool ContainsValue(DependencyProperty dependencyProperty)
{
IDependencyPropertyValueEntry entry;
if (!entries.TryGetValue(dependencyProperty, out entry))
{
return(false);
}
return(entry.GetBaseValuePriority() > (int)BaseValueSource.Inherited);
}
// Get event that is owned by containingType or one of its base classes
public static RoutedEvent GetEvent(Type containingType, string eventName)
{
RoutedEvent routedEvent;
while (containingType != null && containingType != typeof(Visual))
{
System.Runtime.CompilerServices.RuntimeHelpers.RunClassConstructor(containingType.GetTypeHandle());
if (registeredEvents.TryGetValue(new RoutedEventHashKey(containingType, eventName), out routedEvent))
{
return(routedEvent);
}
containingType = containingType.BaseType;
}
return(null);
}
public static bool IsValidReadOnlyKey(DependencyPropertyKey key)
{
DependencyPropertyKey registeredKey;
return(registeredReadOnlyPropertiesKey.TryGetValue(key.DependencyProperty.hashKey, out registeredKey) && registeredKey == key);
}
