DefaultEventAttribute Class

[AttributeUsageAttribute(AttributeTargets::Class)] 
public ref class DefaultEventAttribute sealed : public Attribute

/** @attribute AttributeUsageAttribute(AttributeTargets.Class) */ 
public final class DefaultEventAttribute extends Attribute

AttributeUsageAttribute(AttributeTargets.Class) 
public final class DefaultEventAttribute extends Attribute

Not applicable.

[DefaultEvent("CollectionChanged")]
public ref class TestCollection: public BaseCollection
{
private:
    CollectionChangeEventHandler^ onCollectionChanged;
    
public:
    event CollectionChangeEventHandler^ CollectionChanged 
    {
    public:
        void add(CollectionChangeEventHandler^ eventHandler)
        { 
            onCollectionChanged += eventHandler; 
        }

    protected:
        void remove(CollectionChangeEventHandler^ eventHandler) 
        { 
            onCollectionChanged -= eventHandler; 
        }
    }
    // Insert additional code.
};

/** @attribute DefaultEvent("CollectionChanged")
 */
public static class MyCollection extends BaseCollection
{
    private CollectionChangeEventHandler onCollectionChanged;

    public void add_onCollectionChanged(CollectionChangeEventHandler value)
    {
        onCollectionChanged = (CollectionChangeEventHandler)
            System.Delegate.Combine(onCollectionChanged, value);
    }

    public void remove_onCollectionChanged(CollectionChangeEventHandler
        value)
    {
        onCollectionChanged = (CollectionChangeEventHandler)
            System.Delegate.Remove(onCollectionChanged, value);
    }
    // Insert additional code.
} //MyCollection

int main()
{
    // Creates a new collection.
    DefaultEventAttributeExample::TestCollection^ newCollection = 
        gcnew DefaultEventAttributeExample::TestCollection;
    
    // Gets the attributes for the collection.
    AttributeCollection^ attributes = 
        TypeDescriptor::GetAttributes(newCollection);
    
    // Prints the name of the default event by retrieving the 
    // DefaultEventAttribute from the AttributeCollection.
    DefaultEventAttribute^ attribute = (DefaultEventAttribute^)
        attributes[DefaultEventAttribute::typeid];
    Console::WriteLine("The default event is: {0}", attribute->Name);
}

public static void main(String[] args)
{
    // Creates a new collection.
    MyCollection myNewCollection = new MyCollection();
    // Gets the attributes for the collection.
    AttributeCollection attributes = TypeDescriptor.
        GetAttributes(myNewCollection);

    /* Prints the name of the default event by retrieving the 
     * DefaultEventAttribute from the AttributeCollection. */
    DefaultEventAttribute myAttribute = (DefaultEventAttribute)attributes.
        get_Item(DefaultEventAttribute.class.ToType());
    Console.WriteLine("The default event is: " + myAttribute.get_Name());
} //main