.net core 中的-----标记帮助程序

 微软官方文档地址

  基本步骤:

    

    然后添加到

  具体编写规则请参考最上面的地址

小例子:

  1.绑定参数

  2.根据参数选择是否显示html内容

   3.避免标记帮助程序冲突

[HtmlTargetElement("p")]
public class AutoLinkerHttpTagHelper : TagHelper
{
    public override async Task ProcessAsync(TagHelperContext context, TagHelperOutput output)
    {
        var childContent = await output.GetChildContentAsync();
        // Find Urls in the content and replace them with their anchor tag equivalent.
        output.Content.SetHtmlContent(Regex.Replace(
             childContent.GetContent(),
             @"(?:https?://)(S+)",
              "<a target="_blank" href="$0">$0</a>"));  // http link version}
    }
}

  在加一个

    [HtmlTargetElement("p")]
    public class AutoLinkerWwwTagHelper : TagHelper
    {
        public override async Task ProcessAsync(TagHelperContext context, TagHelperOutput output)
        {
            var childContent = await output.GetChildContentAsync();
            // Find Urls in the content and replace them with their anchor tag equivalent.
            output.Content.SetHtmlContent(Regex.Replace(
                childContent.GetContent(),
                 @"(www.)(S+)",
                 "<a target="_blank" href="http://$0">$0</a>"));  // www version
        }
    }

可以将代码变成这样

原文地址:https://www.cnblogs.com/student-note/p/8909096.html