Tag Helpers

Tag Helpers in ASP.NET Core are a powerful feature that enables server-side code to participate in creating and rendering HTML elements in Razor views. They make your Razor markup more readable and maintainable by allowing you to use HTML-like syntax while still leveraging the full power of C#.

🏷️ What Are Tag Helpers?

Tag Helpers are C# classes that target HTML elements based on element name, attribute name, or parent tag. They allow you to:

• Attach server-side logic to HTML elements
• Generate dynamic content
• Simplify form handling, routing, and component rendering

🔧 How They Work

Tag Helpers are activated by adding the @addTagHelper directive in your Razor view or _ViewImports.cshtml file:

@addTagHelper *, Microsoft.AspNetCore.Mvc.TagHelpers

This makes built-in Tag Helpers (like asp-for, asp-action, asp-controller) available in your views.

📦 Common Built-in Tag Helpers

🧑‍💻 Example

<form asp-action="Login">
    <input asp-for="Username" />
    <span asp-validation-for="Username"></span>
    <button type="submit">Login</button>
</form>

This example binds the input to the Username property of the model and sets up validation.

🛠️ Snitz Custom Tag Helpers

I have created several Tag Helpers to help with page renderring of various items.