使用 C# 以编程方式删除 HtmlElement 对象

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时间:2020-08-04 07:57:08  来源:igfitidea点击:

Removing HtmlElement objects programmatically using C#

c#browserwebbrowser-controldom

提问by Tony the Pony

In a WebBrowsercontrol, how do I remove HtmlElementobjects? There are no methods in the HtmlElementclass to accomplish this. As a workaround, I can create a "dummy" HtmlElement(without inserting it into the HtmlDocument), into which I then insert (via AppendChild) the HtmlElementobjects to be removed. This feels like a hack. Is there a better way to do this?

WebBrowser控件中,如何删除HtmlElement对象?HtmlElement类中没有方法可以完成此操作。作为一种解决方法,我可以创建一个“虚拟” HtmlElement(不将其插入HtmlDocument),然后将要删除AppendChildHtmlElement对象插入(通过)。这感觉就像一个黑客。有一个更好的方法吗?

P.S. I want to retain the HtmlElementin memory to be used later, not simply destroy it (which is what setting its parent's innerHtmlto an empty string would do)

PS我想保留HtmlElement内存以供以后使用,而不是简单地销毁它(这是将其父项设置innerHtml为空字符串的方法)

采纳答案by alexl

Look at this WebControl Heritance, with loads of feature: http://www.codeproject.com/KB/miscctrl/csEXWB.aspx

看看这个具有大量功能的 WebControl 继承:http: //www.codeproject.com/KB/miscctrl/csEXWB.aspx

You could add a remove method to del element by id.

您可以通过 id 向 del 元素添加删除方法。

Hope this helps

希望这可以帮助

回答by configurator

The only other way I know is to change the parent's InnerHtml.

我知道的唯一另一种方法是更改​​父母的InnerHtml.

回答by Tony the Pony

There's a method called IHTMLDOMNode::removeNodewhich looks like the "official" way to do this, but this is unmanaged code in mshtml.dll. I'm looking for something more suitable for C#.

有一个方法被调用IHTMLDOMNode::removeNode,它看起来像“官方”的方法来做到这一点,但这是mshtml.dll. 我正在寻找更适合 C# 的东西。

回答by Gerhard

You can delete the element by setting its outerhtml to an empty string.

您可以通过将其 outerhtml 设置为空字符串来删除该元素。

elem.OuterHtml = ""

elem.OuterHtml = ""

I hope this is what you were looking for.

我希望这就是你要找的。

gm

通用汽车

回答by alexl

Add a reference to Microsoft.mshtml (from .Net tab)

添加对 Microsoft.mshtml 的引用(来自 .Net 选项卡)

using Microsoft.mshtml;
....
{
...
    // To Remove     
    HTMLDocumentClass htmldoc = wbCtrl.Document.DomDocument as HTMLDocumentClass;
    IHTMLDOMNode node = htmldoc.getElementById("xBar") as IHTMLDOMNode;
    node.parentNode.removeChild(node);
...
}