Senparc.Weixin.MP SDK 微信公众平台开发--自定义菜单相关

   public virtual IResponseMessageBase OnImageRequest(RequestMessageImage requestMessage);
        public virtual IResponseMessageBase OnLinkRequest(RequestMessageLink requestMessage);
        public virtual IResponseMessageBase OnLocationRequest(RequestMessageLocation requestMessage);
        public virtual IResponseMessageBase OnTextRequest(RequestMessageText requestMessage);
        public virtual IResponseMessageBase OnVoiceRequest(RequestMessageVoice requestMessage);
        public virtual IResponseMessageBase OnVideoRequest(RequestMessageVideo requestMessage);

上面的是输入框的请求返回。
        public virtual IResponseMessageBase OnEvent_ClickRequest(RequestMessageEvent_Click requestMessage);
        public virtual IResponseMessageBase OnEvent_ViewRequest(RequestMessageEvent_View requestMessage);
        public virtual IResponseMessageBase OnEvent_EnterRequest(RequestMessageEvent_Enter requestMessage);
        public virtual IResponseMessageBase OnEvent_LocationRequest(RequestMessageEvent_Location requestMessage);
        public virtual IResponseMessageBase OnEvent_SubscribeRequest(RequestMessageEvent_Subscribe requestMessage);
        public virtual IResponseMessageBase OnEvent_UnsubscribeRequest(RequestMessageEvent_Unsubscribe requestMessage);
        public virtual IResponseMessageBase OnEvent_ScanRequest(RequestMessageEvent_Scan requestMessage)
        public virtual IResponseMessageBase OneEvent_MassSendJobFinisRequest(RequestMessageEvent_MassSendJobFinish requestMessage)

这里是菜单按钮的事件返回。

我们可以直接重写这两个方法。其中OnExecuting会在所有消息处理方法（如OnTextRequest，OnVoiceRequest等）执行之前执行，这个过程中，我们可以把CancelExecute设为true，来中断后面所有方法的执行（包括OnExecuted），例如：

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public override void OnExecuting() {     if (RequestMessage.FromUserName == "olPjZjsXuQPJoV0HlruZkNzKc91E")     {         CancelExcute = true; //终止此用户的对话               //如果没有下面的代码，用户不会收到任何回复，因为此时ResponseMessage为null           //添加一条固定回复         var responseMessage = CreateResponseMessage<ResponseMessageText>();         responseMessage.Content = "Hey！你已经被拉黑啦！";           ResponseMessage = responseMessage;//设置返回对象     } }

　　如果OnExecuting中没有中断，当例如OnTextRequest方法执行完毕之后（或执行了默认方法），OnExecuted()方法将会触发，我们也可以对应地重写。要注意的是，在OnExecuted()方法内，ResponseMessage已经被赋了返回值。