如何通过GetElementByClass选择一个类并以编程方式单击它

本文介绍了如何通过GetElementByClass选择一个类并以编程方式单击它的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我一直在尝试使用此代码按html / ajax中的类读取元素，知道GetByByClass不是webBrowser.Document中的选项。我似乎无法获得返回值，然后调用该成员。

I have been trying to use this code to read the element by class in html/ajax knowing GetElementByClass is not a option in webBrowser.Document. I can't seem to get a return value then invoke the member. Is there a work around for this?

参考文献：

示例：

<span class="example">(<a href="http://www.test.com/folder/remote/api?=test" onclick=" return do_ajax('popup_fodder', 'remote/api?=test', 1, 1, 0, 0); return false; " class="example">test</a>)</span>

示例代码：

   HtmlElementCollection theElementCollection = default(HtmlElementCollection);
   theElementCollection = webBrowser1.Document.GetElementsByTagName("span");
   foreach (HtmlElement curElement in theElementCollection)
   {
        //If curElement.GetAttribute("class").ToString = "example"  It doesn't work.  
        // This should be the work around.
        if (curElement.OuterHtml.Contains("example"))
        {
            MessageBox.Show(curElement.GetAttribute("InnerText")); // Doesn't even fire.
            // InvokeMember(test) after class is found.
        }
    }

推荐答案

I承认它不是很直观，但是您需要使用 GetAttribute（ className）而不是 GetAttribute（ class）

I admit it's not very intuitive but you need to use GetAttribute("className") instead of GetAttribute("class")

HtmlElementCollection theElementCollection = default(HtmlElementCollection);
theElementCollection = webBrowser1.Document.GetElementsByTagName("span");
foreach (HtmlElement curElement in theElementCollection)
{
    if (curElement.GetAttribute("className").ToString() == "example")
    {
        MessageBox.Show(curElement.GetAttribute("InnerText")); // Do something you want
    }
}

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getAttribute