12. Add as a Parameter

In this section, you add search capability to the Index action method that lets you search movies by genre or name.

Update the Index method found inside Controllers/MoviesController.cs with the following code:

public async Task<IActionResult> Index(string searchString)
{
    var movies = from m in _context.Movie
                 select m;

    if (!String.IsNullOrEmpty(searchString))
    {
        movies = movies.Where(s => s.Title!.Contains(searchString));
    }

    return View(await movies.ToListAsync());
}

Navigate to /Movies/Index. Append a query string such as ?searchString=Ghost to the URL. The filtered movies are displayed.