Net核心:将字符串转换为TagBuilder

Question

下面的代码将TagBuilder转换为String。什么是相反的？如何将反向String转换为TagBuilder？寻找解决方案。

Convert IHtmlContent/TagBuilder to string in C#

public static string GetString(IHtmlContent content)
{
    using (var writer = new System.IO.StringWriter())
    {        
        content.WriteTo(writer, HtmlEncoder.Default);
        return writer.ToString();
    } 
}       

Answer 1

作为一种选择，您可以使用像HtmlAgilityPack这样的html解析器并获取一个html节点，然后使用节点的名称、属性和内部html创建一个TagBuilder：

public TagBuilder GetTagBuilder(string html)
{
    var node = HtmlAgilityPack.HtmlNode.CreateNode(html);
    var tagBuilder = new TagBuilder(node.Name);
    tagBuilder.MergeAttributes(node.Attributes.ToDictionary(x => x.Name, x => x.Value));
    tagBuilder.InnerHtml = node.InnerHtml;
    return tagBuilder;
}

例如：

var html = @"<div id=""div1"" class=""class1"">Something</div>";
var tagBuilder = GetTagBuilder(html);
var str = tagBuilder.ToString();

则str值将为：

<div class="class1" id="div1">Something</div>

Answer 2

使用XmlDocument的

var doc = new System.Xml.XmlDocument();
doc.LoadXml(html);
TagBuilder tagBuilder = new TagBuilder(doc.DocumentElement.Name);
tagBuilder.MergeAttributes(doc.DocumentElement.Attributes.Cast<System.Xml.XmlAttribute>().ToDictionary(x => x.Name, x => x.Value));
tagBuilder.InnerHtml = doc.DocumentElement.InnerXml;
return tagBuilder;