Could you explain what Tag Helpers are in the context of ASP.NET Core?

Tag Helpers in ASP.NET Core are special components that simplify working with HTML markup in Razor Views. They allow you to use familiar HTML tags with additional functionality integrated with server-side logic.

Main advantages of Tag Helpers:

• Enable writing cleaner and more readable Razor code.
• Integrate with models and controllers.
• Provide autocomplete and validation in the editor.

For example, instead of using an HTML helper to create a form:

@using (Html.BeginForm("Action", "Controller")) {
    <input type="text" name="Name" />
    <button type="submit">Submit</button>
}

You can use a Tag Helper:

<form asp-action="Action" asp-controller="Controller">
    <input asp-for="Name" />
    <button type="submit">Submit</button>
</form>

Here, the attributes asp-action, asp-controller, asp-for are Tag Helpers that generate the corresponding server-side logic and bind elements to the model.

Thus, Tag Helpers make the code more declarative and easier to maintain.