How deeply does ASP.NET Core in Action, 3e cover anchor tag helper?

Explains core attributes, generated defaults, and URL customization, but defers detailed treatment of areas.

Anchor tag helper

As explained in ASP.NET Core in Action, 3e

The Anchor Tag Helper is an ASP.NET Core Tag Helper that generates an anchor element's URL from Razor Page and routing attributes.

The Anchor Tag Helper generates an <a> element’s URL through Razor Pages routing, avoiding hardcoded href values. Set asp-page and add asp-page-handler or asp-route-* attributes when needed. section 18.3

Navigation links in _Layout.cshtml

Use <a asp-area="" asp-page="/Index">Home</a> and <a asp-area="" asp-page="/Privacy">Privacy</a>. Routing generates / and /Privacy, respectively. section 18.3

Customize URL generation with these attributes:

asp-page selects the Razor Page; asp-page-handler selects its handler. section 18.3
asp-route-* supplies route parameters, while asp-area selects an area. section 18.3
asp-host or asp-protocol creates an absolute URL with the requested host or HTTP protocol. section 18.3

How ASP.NET Core in Action, 3e covers it

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Related concepts

routinguses · Routing is the selection of a path, destination, or processing component to direct an item, request, or flow toward an intended endpoint.
Tag Helperskind of · Tag Helpers are ASP.NET Core components that process HTML-like elements during Razor view or page rendering.
anchor elementuses · An anchor element is an HTML element that represents a hyperlink or navigation target, typically linking content to another resource or location.
uriproduces · A URI (Uniform Resource Identifier) is a standardized character sequence that identifies an abstract or physical resource.
Razor Pagesuses · Razor Pages is an ASP.NET Core page-focused programming model in which independently addressable pages combine Razor markup with request-handling logic.
url generationuses · URL generation is the programmatic construction of resource or endpoint URLs from routing metadata and parameter values.

This explainer was generated by Manning's knowledge graph from the text of ASP.NET Core in Action, 3e. The section links point to the parts of the book it draws on.