我在尝试删除具有特定ID的div及其子代使用HTML Agility包时遇到了困难。我确信我只是错过了一个配置选项,但它周五而且我正在努力。
简化的HTML运行:
<html><head></head><body><div id='wrapper'><div id='functionBar'><div id='search'></div></div></div></body></html>
这是我所拥有的。敏捷包抛出的错误表明它找不到div结构:
<div id='functionBar'></div>
这是迄今为止的代码(取自Stackoverflow ....)
HtmlAgilityPack.HtmlDocument htmlDoc = new HtmlAgilityPack.HtmlDocument();
// There are various options, set as needed
//htmlDoc.OptionFixNestedTags = true;
// filePath is a path to a file containing the html
htmlDoc.LoadHtml(Html);
string output = string.Empty;
// ParseErrors is an ArrayList containing any errors from the Load statement
if (htmlDoc.ParseErrors != null && htmlDoc.ParseErrors.Count > 0)
{
// Handle any parse errors as required
}
else
{
if (htmlDoc.DocumentNode != null)
{
HtmlAgilityPack.HtmlNode bodyNode = htmlDoc.DocumentNode.SelectSingleNode("//body");
if (bodyNode != null)
{
HtmlAgilityPack.HtmlNode functionBarNode = bodyNode.SelectSingleNode ("//div[@id='functionBar']");
bodyNode.RemoveChild(functionBarNode,false);
output = bodyNode.InnerHtml;
}
}
}
答案 0 :(得分:7)
bodyNode.RemoveChild(functionBarNode,FALSE);
但是functionBarNode不是bodyNode的子代。
functionBarNode.ParentNode.RemoveChild(functionBarNode, false)
怎么样? (并忘记了关于查找bodyNode的内容。)
答案 1 :(得分:3)
您只需致电:
var documentNode = document.DocumentNode;
var functionBarNode = documentNode.SelectSingleNode("//div[@id='functionBar']");
functionBarNode.Remove();
它更简单,并且与:
相同functionBarNode.ParentNode.RemoveChild(functionBarNode, false);
答案 2 :(得分:0)
这适用于多个:
HtmlDocument d = this.Download(string.Format(validatorUrl, Url));
foreach (var toGo in QuerySelectorAll(d.DocumentNode, "p[class=helpwanted]").ToList())
{
toGo.Remove();
}