c# - 在 VB 中覆盖事件

有没有办法在VB中翻译这段代码？大部分都很简单，但我想不出覆盖事件处理程序的方法。

public class MTObservableCollection<T> : ObservableCollection<T>
{

    public MTObservableCollection()
    {
        _DispatcherPriority = DispatcherPriority.DataBind;
    }
    public MTObservableCollection(DispatcherPriority dispatcherPriority)
    {
        _DispatcherPriority = dispatcherPriority;
    }
    private DispatcherPriority _DispatcherPriority;

    public override event NotifyCollectionChangedEventHandler CollectionChanged;
    protected override void OnCollectionChanged(NotifyCollectionChangedEventArgs e)
    {
        var eh = CollectionChanged;
        if (eh != null)
        {
            Dispatcher dispatcher = (from NotifyCollectionChangedEventHandler nh in eh.GetInvocationList()
                                     let dpo = nh.Target as DispatcherObject
                                     where dpo != null
                                     select dpo.Dispatcher).FirstOrDefault();

            if (dispatcher != null && dispatcher.CheckAccess() == false)
            {
                dispatcher.Invoke(DispatcherPriority.DataBind, (Action)(() => OnCollectionChanged(e)));
            }
            else
            {
                foreach (NotifyCollectionChangedEventHandler nh in eh.GetInvocationList())
                    nh.Invoke(this, e);
            }
        }
    }

}

最佳答案

在 C# 中覆盖事件甚至是一个错误。 C# Programming Guide 说:



我想知道为什么一个框架类打破了这个规则，甚至为什么编译器允许它。