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ASP.NET Core: How to Create WordPress Slugs

Use the regular expression \W+ to replace unwanted URL characters with a dash (-) and prevent multiple dashes running together. In other words, sanitize names and titles.

See also: do this in a console application and use JavaScript regular expressions to create WordPress slugs.

This is a Controller in an MVC web application.

using Microsoft.AspNetCore.Mvc;

namespace WebApplication1.Controllers
{
	public class HomeController : Controller
	{
		private IWebHostEnvironment env { get; }
		public HomeController(IWebHostEnvironment env)
		{
			this.env = env;
		}

		public IActionResult Index()
		{
			return View();
		}

		[HttpPost]
		public IActionResult Index(IFormCollection form)
		{
			string input = form["input-field"];
			string slug = System.Text.RegularExpressions.Regex.Replace(input, @"\W+", "-"); // NOTE: turn the input text into a slug
			return View(model: slug);
		}
	}
}

And now the View code.

@{
	ViewData["Title"] = "/Home/Index";
}

<div class="text-center">
	<h1 class="display-4">Get Slug</h1>
	<form method="post">
		<div>
			<input type="text" name="input-field" placeholder="input..." />
		</div>
		<div>
			<button type="submit" class="btn btn-primary">SUBMIT</button>
		</div>
	</form>
	@if(Model is string)
	{
		<p>@Model</p>
	}
</div>

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