WebBrowser DocumentCompleted在我的情况下是没有用的 [英] WebBrowser DocumentCompleted is useless in my case

问题描述

首先，我已经修复了WebBrowser，现在我可以在Windows窗体中正确看到该页面.我关注了此链接并将其引用到IE 11.0，因此Windows窗体中的WebBrowser控件是IE11.0浏览器实例.

First of all I've repaired WebBrowser and now I see the page correctly in my Windows Form. I folowed this link and referenced it to IE 11.0 so the WebBrowser control in my windows form is a IE11.0 browser instance.

我在以下形式的构造函数中具有此名称:

I have this in the constructor of the form:

webBrowser1.DocumentCompleted += new WebBrowserDocumentCompletedEventHandler(WebBrowser_DocumentCompleted);

然后是事件处理程序

public void WebBrowser_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
    { 
        txtLoad.Text = (Convert.ToInt32((txtLoad.Text)) + 1).ToString();
        var webBrowser = sender as WebBrowser;
        webBrowser.Document.GetElementById("gwt-uid-126").InvokeMember("click");
    }

一切都从单击按钮开始:

It all starts with a click of a button :

void BtnTestClick(object sender, EventArgs e)
    {
        webBrowser1.Navigate(@"https://play.google.com/apps/publish/?dev_acc=06010154238306490792#AppListPlace");
    }

单击调用不执行任何操作.我尝试了此处列出的所有方法，但没有任何尝试.为什么我可以在屏幕上看到按钮，但是无法在代码中引用它?如果尚未加载按钮，为什么会触发documentCompleted?如何获得按钮?然后点击它?

The click invoke does nothing . I tried all methods listed here and nothing. Why can I see the button on my screen but cannot reference it in code? Why is documentCompleted firing if the button didn't load already? How can I get the button? and click it?

推荐答案

修复:

webBrowser1.Navigate(@"https://play.google.com/apps/publish/?dev_acc=06010154238306490792#AppListPlace");
while (WebBrowser1.ReadyState != WebBrowserReadyState.Complete) {
         txtLoad.Text = WebBrowser1.ReadyState.ToString();
        Application.DoEvents();
        System.Threading.Thread.Sleep(1);
    }
webBrowser1.Document.GetElementById("gwt-uid-126").InvokeMember("click");

即使文档未完全加载，我也有对WebBrowserDocumentCompleted事件的调用.
示例:
让我们说页面源代码中有2个脚本元素:

there i a call to the WebBrowserDocumentCompleted event even if the document is not fully loaded.
example:
lets say that there are 2 script elements inside the page source code:

<script src="1.js"></script>
//Here There Is A Call To WebBrowserDocumentCompleted 
<script src="2.js"></script>
//Here There Is A Call To WebBrowserDocumentCompleted
............
body
.............
</html>
//Here There Is A Call To WebBrowserDocumentCompleted

即使浏览器完成了脚本/样式表的加载，Web浏览器仍会调用此事件-页面尚未真正加载完毕.

the webbrowser is calling this event even after he done loading script/stylesheet - the page is not really fully loaded yet.

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