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Update authoring.md (#15180)

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Gary Chan 2019-10-18 05:24:38 -07:00 committed by Luke Latham
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aspnetcore/mvc/views/tag-helpers/authoring.md
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@ -61,7 +61,7 @@ That is, an anchor tag that makes this an email link. You might want to do this
1. To make the `EmailTagHelper` class available to all our Razor views, add the `addTagHelper` directive to the *Views/_ViewImports.cshtml* file:
[!code-html[](../../../mvc/views/tag-helpers/authoring/sample/AuthoringTagHelpers/src/AuthoringTagHelpers/Views/_ViewImportsCopyEmail.cshtml?highlight=2,3)]
[!code-cshtml[](../../../mvc/views/tag-helpers/authoring/sample/AuthoringTagHelpers/src/AuthoringTagHelpers/Views/_ViewImportsCopyEmail.cshtml?highlight=2,3)]
The code above uses the wildcard syntax to specify all the tag helpers in our assembly will be available. The first string after `@addTagHelper` specifies the tag helper to load (Use "*" for all tag helpers), and the second string "AuthoringTagHelpers" specifies the assembly the tag helper is in. Also, note that the second line brings in the ASP.NET Core MVC tag helpers using the wildcard syntax (those helpers are discussed in [Introduction to Tag Helpers](intro.md).) It's the `@addTagHelper` directive that makes the tag helper available to the Razor view. Alternatively, you can provide the fully qualified name (FQN) of a tag helper as shown below: