public void Detach <TViewModelEventArgs>(string dispatcher, ViewModelEventHandler <TViewModelEventArgs> callback) where TViewModelEventArgs : ViewModelEventArgs
{
// [WARNING] Reflection used. May be slow.
dispatcher = dispatcher ?? throw new ArgumentNullException("Dispatcher cannot be null.");
callback = callback ?? throw new ArgumentNullException("Callback cannot be null.");
Type ty = GetType();
EventInfo e = ty.GetEvent(dispatcher, BindingFlags.Instance | BindingFlags.Public);
if (e.MemberType != MemberTypes.Event)
{
throw new SystemException("\'" + dispatcher + "\' is not a valid dispatcher.");
}
if (e == null)
{
throw new DispatcherNotFoundException("Could not find dispatcher \'" + dispatcher + "\".");
}
if (callback.GetType() != e.EventHandlerType)
{
throw new DispatcherTypeMismatchException("Dispatcher type does not match with the callback type.");
}
e.RemoveEventHandler(this, callback);
}
