ASP.NET Core MVC Interview Question #19

What are Tag Helpers in ASP.NET Core MVC?

MVC Fundamentals, Controllers, Views & Routing Junior Beginner

Quick Interview Answer

Tag Helpers are server-side components that participate in generating or modifying HTML elements in Razor views. Built-in Tag Helpers support forms, labels, inputs, validation messages, links, scripts, and other common MVC tasks.

Detailed Explanation

Tag Helpers are server-side components that participate in generating or modifying HTML elements in Razor views. Built-in Tag Helpers support forms, labels, inputs, validation messages, links, scripts, and other common MVC tasks.

They use HTML-like syntax and can integrate with routing and model metadata. For example, asp-controller and asp-action generate URLs based on MVC routing rather than requiring hard-coded paths.

Code Example

<a asp-controller="Products"
   asp-action="Details"
   asp-route-id="@Model.Id">
    View product
</a>