如何从 WPF WebBrowser 获取 HtmlElementCollection
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How can I get an HtmlElementCollection from a WPF WebBrowser
提问by software is fun
My old WinForm application used HtmlElementCollection to process a page
我的旧 WinForm 应用程序使用 HtmlElementCollection 处理页面
HtmlElementCollection hec = this.webbrowser.Document.GetElementsByTagName("input");
In WPF WebBrowser, there are several things that are different. For example
在 WPF WebBrowser 中，有几个不同的地方。例如
this.webbrowser.Documentdoes not have any method called GetElementsByTagName
this.webbrowser.Document没有任何名为GetElementsByTagName 的方法
Therefore my code is unable to get an HtmlElementCollection
因此我的代码无法获得 HtmlElementCollection
回答by dkozl
You need to add reference to Microsoft.mshtmland then you need to cast document as mshtml.HTMLDocument. After you do that you should be able to use getElementsByTagName()method
您需要添加对的引用Microsoft.mshtml，然后需要将文档转换为mshtml.HTMLDocument. 在你这样做之后，你应该能够使用getElementsByTagName()方法
var document = webBrowser.Document as mshtml.HTMLDocument;
var inputs = document.getElementsByTagName("input");
foreach (mshtml.IHTMLElement element in inputs)
{
}
getElementsByTagName()returns mshtml.IHTMLElementCollectionand each item is of a mshtml.IHTMLElementtype
getElementsByTagName()返回mshtml.IHTMLElementCollection并且每个项目都是一种mshtml.IHTMLElement类型
EDIT
编辑
Alternative solution, if you need to use WinForms WebBrowseryou can use that instead of the WPF one. Add reference to WindowsFormsIntegrationand System.Windows.Forms, create namespace in XAML and use different browser control
另一种解决方案，如果您需要使用 WinForms，WebBrowser您可以使用它而不是 WPF。添加对WindowsFormsIntegrationand 的引用System.Windows.Forms，在 XAML 中创建命名空间并使用不同的浏览器控件
<Window ...
xmlns:winforms="clr-namespace:System.Windows.Forms;assembly=System.Windows.Forms">
<WindowsFormsHost>
<winforms:WebBrowser x:Name="webBrowser"/>
</WindowsFormsHost>
</Window>
