Question

如何从javascript调用中读取回调消息的值。

这是我的代码：

 private void OnDocumentLoaded(object sender, WebBrowserDocumentCompletedEventArgs e)
    {
      CallbackHandler callback = new CallbackHandler(EndRequestNormally, EndRequestWithNoData);
      SendJavaScript(CreateRequestCompleteListenerScript());

        theBrowser.Document.InvokeScript("RequestCompleteListener", new object[] { callback });
        theBrowser.Document.InvokeScript("AjaxObjectHandle", new object[] { _parameters });
    }

 private void EndRequestNormally()
    {
        SetWebWidgetWindowSize();
    }

 private void SendJavaScript(string script)
    {
        theBrowser.Document.InvokeScript("eval", new object[] {script});
    }

 private string CreateRequestCompleteListenerScript()
    {
        StringBuilder script = new StringBuilder();
        script.AppendLine("var RequestCompleteListener = function(callback) {");
        script.AppendLine("    var internalCallback = {");
        script.AppendLine("        handleCallback:function(message, params){");
        script.AppendLine("            if (message == null){");
        script.AppendLine("                 callback.HandleNullMessage();");
        script.AppendLine("            } else {");
        script.AppendLine("                 callback.HandleRequestComplete();");
        script.AppendLine("            }");
        script.AppendLine("        }");
        script.AppendLine("    }");
        script.AppendLine("    UpdateAjaxObject.addListener('requestcomplete', internalCallback.handleCallback, internalCallback);");
        script.AppendLine("};");
        return script.ToString();
    }



    [System.Runtime.InteropServices.ComVisible(true)]
    public class CallbackHandler
    {
        public CallbackHandler(VoidHandler requestCompleteAction, VoidHandler nullMessageAction)
        {
            _requestCompleteAction = requestCompleteAction;
            _nullMessageAction = nullMessageAction;
        }

        private VoidHandler _requestCompleteAction;
        private VoidHandler _nullMessageAction;
        private bool _requestCompleted;

        [System.Runtime.InteropServices.DispId(0)]
        public void HandleRequestComplete()
        {
            if (!_requestCompleted)
                _requestCompleteAction();
            _requestCompleted = true;
        }

        [System.Runtime.InteropServices.DispId(1)]
        public void HandleNullMessage()
        {
            if (!_requestCompleted)
                _nullMessageAction();
        }
    }

以上代码正在拨打电话。

我想要的是，在通话后阅读信息中的值。

下图包含AJAX对象中的值

我想得到交易日期下的二期票数。 Image of DOM

有办法吗？

感谢任何帮助。

由于

Answer 1

你的意思是你只是想用JavaScript来实现吗？ <script>alert(AjaxObject.messages.tradeSchedule.binShares[0]);</script>你没有扩展binShares数组，所以我不确定那里有什么。

我看到你做了改变，你想要binShares的长度，这样做......

<script>alert(AjaxObject.messages.tradeSchedule.binShares.length);</script>

在调用调用之后读取DOM对象

1 个答案: