Public Event OnAdd( _
    ByVal Sender As IAgEntityCollection, _
    ByVal Entity As IAgEntity _
) 

public void OnAdd(
    IAgEntityCollection Sender,
    IAgEntity Entity
);

public: void OnAdd(
    IAgEntityCollection ^ Sender,
    IAgEntity ^ Entity
);

public void onAdd(
    IAgEntityCollection Sender,
    IAgEntity Entity
);

public: HRESULT OnAdd(
    IAgEntityCollection * Sender,
    IAgEntity * Entity
);