有没有办法获得异步wcf调用的错误反馈?

服务器为您缓存异常,如果您为异步调用调用结束操作完成方法,它将引发发生的任何异常。

private void go_Click(object sender, EventArgs e)
{
    client.BeginDoMyStuff(myValue, new AsyncCallback(OnEndDoMyStuff), null);
}

public void OnEndDoMyStuff(IAsyncResult asyncResult)
{
    this.Invoke(new MethodInvoker(delegate() { 
        // This will throw if we have had an error
        client.EndDoMyStuff(asyncResult);
    }));
}