在 C# 中将 IHtmlContent/TagBuilder 转换为字符串

问题描述

我使用的是 ASP.NET 5.我需要将 IHtmlContent 转换为 String

I am using ASP.NET 5. I need to convert IHtmlContent to String

IIHtmlContent 是 ASP.NET 5 Microsoft.AspNet.Html.Abstractions 命名空间的一部分，是 TagBuilder 的接口 实现

IIHtmlContent is part of the ASP.NET 5 Microsoft.AspNet.Html.Abstractions namespace and is an interface that TagBuilder implements

简化我有以下方法

public static IHtmlContent GetContent()
{
    return new HtmlString("<tag>blah</tag>");
}

当我引用它

string output = GetContent().ToString();

我得到以下 GetContent() 的输出

I get the following output for GetContent()

"Microsoft.AspNet.Mvc.Rendering.TagBuilder"

而不是

<tag>blah</tag>

我想要的

我也尝试过使用 StringBuilder

I also tried using StringBuilder

StringBuilder html = new StringBuilder();
html.Append(GetContent());

但它也附加了相同的命名空间而不是字符串值

but it also appends the same namespace and not the string value

我尝试将其转换为 TagBuilder

I tried to cast it to TagBuilder

TagBuilder content = (TagBuilder)GetContent();

但 TagBuilder 没有转换为字符串的方法

but TagBuilder doesn't have a method that converts to string

如何将 IHtmlContent 或 TagBuilder 转换为字符串?

How do I convert IHtmlContent or TagBuilder to a string?

推荐答案

如果您需要做的只是将内容输出为字符串，只需添加此方法并将您的 IHtmlContent 对象作为参数传递以获取字符串输出:

If all you need to do is output the contents as a string, just add this method and pass your IHtmlContent object as a parameter to get the string output:

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

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