-----Tag Helper in. NET Core

Microsoft Official Document Address

Basic steps:

　　　　

And then add to

Please refer to the top address for specific writing rules.

Small example:

　　1. Binding parameters

　2. Select whether to display HTML content according to the parameters

3. Avoid tag helper conflicts

[Htmltargetelement ("P")] Public classautolinkerhttptaghelper:taghelper{ Public Override AsyncTask Processasync (taghelpercontext context, taghelperoutput output) {varChildcontent =awaitoutput.        Getchildcontentasync (); //Find Urls in the content and replace them with their anchor tag equivalent.output. Content.sethtmlcontent (Regex.Replace (Childcontent.getcontent (),@"\b (?: https?:/ /) (\s+) \b",              "<a target=\ "_blank\" href=\ "$0\" >$0</a>"));//http link Version}    }}

　　In addition to a

[Htmltargetelement ("P")]     Public classAutolinkerwwwtaghelper:taghelper { Public Override AsyncTask Processasync (taghelpercontext context, taghelperoutput output) {varChildcontent =awaitoutput.            Getchildcontentasync (); //Find Urls in the content and replace them with their anchor tag equivalent.output. Content.sethtmlcontent (Regex.Replace (Childcontent.getcontent (),@"\b (www\.) (\s+) \b",                 "<a target=\ "_blank\" href=\ "http://$0\" >$0</a>"));//www version        }    }

You can turn the code into this

-----Tag Helper in. NET Core