在C＃中使用Web浏览器单击HTML元素 [英] Click an HTML Element with web browser in C#

问题描述

大家好，这里有一个代码，其中包含一个我需要点击的按钮，但我不能这样做，虽然我尝试了很多方法来使用

 currentwb.Document.GetElementById 

但是我们看到这个代码没有该元素的id，

< a  class  =   single_like_button btn3-wrapönclick=   openWin_1083724（）; >  
< span> < /   span  > < div  class  =   btn3>点击此处< /   div  >  < /   a  >  

所以有关如何获取此元素的任何建议被点击？

解决方案

你不能点击它？这对我来说毫无意义。你想从javascript触发元素上的click事件？试试这个： http://www.nonobtrusive.com/ 2011/11/29 / programatically-fire-crossbrowser-click-event-with-javascript / [ ^ ]



[更新]

如果您想自动化IE，最好使用这种方法： http://harness.codeplex.com/ [ ^ ]



如果您坚持使用WebBrowser控件（currentwb），请尝试以下方法：

 HtmlElement link = currentwb.Document.GetElementByID（  id_of_element）
 link.InvokeMember（ 点击）

或者，如果由于某种原因你不能指定id，你可以使用这种方法。

 HtmlElementCollection links = currentwb.Document.GetElementsByTagName（  A）; 
 
  foreach （HtmlElement link  in  links）
 {
  if （link.InnerText.Equals（  Link text））
 link.InvokeMember（ 点击）; 
} 

请注意在IF语句中输入识别链接的正确条件。

点击是你用鼠标或事实上用键盘做的事情。如果你仔细想想，你会明白你所需要的不是点击。你只想拥有与用户点击元素相同的效果。在其他作品中，您只需从JavaScript中调用 openWin_1083724（）。

-SA

hello guys , here a code that`s contains a button i need to click but i can`t do it although i tried many way to do it using

currentwb.Document.GetElementById

but as we see this code have no id for the element ,,

<a class="single_like_button btn3-wrap"  önclick="openWin_1083724();">
						                    <span> </span><div class="btn3">Click Here</div></a>

so any suggestion about how i can get this element is clicked ?

解决方案

You can't click on it? This makes no sense to me. You want to trigger the click event on the element from javascript? Try this: http://www.nonobtrusive.com/2011/11/29/programatically-fire-crossbrowser-click-event-with-javascript/[^]

[Update]
If you want to automate IE, you better use this approach: http://harness.codeplex.com/[^]

If you stick to WebBrowser control (currentwb), try this approach:

HtmlElement link = currentwb.Document.GetElementByID("id_of_element")
link.InvokeMember("Click")

Or, if you can't assign id for some reason, you can use this approach.

HtmlElementCollection links = currentwb.Document.GetElementsByTagName("A");

foreach (HtmlElement link in links)
{
    if (link.InnerText.Equals("Link text"))
        link.InvokeMember("Click");
}

Be aware to put in the IF statement the proper condition to identify your link.

"Click" is something which you do with a mouse or, in fact, with a keyboard. If you think about it, you will understand that what you need is not a click. You simply want to have "the same effect as the user's click on the element". In other works, you simply need to call openWin_1083724() from your JavaScript.

—SA

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