Exercise Solutions: Controllers and Routes

Line numbers are for reference. They may not match your code exactly.

Part 1: GET Request

Modify your HelloController class to display a form on a GET request that asks the user for both their name and the language they would like to be greeted in.

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   //GET: /<controller>/
   public IActionResult Index()
   {
      string html = "<form method='post'>" +
         "<input type='text' name='name' />" +
         "<select name='language'>" +
         "<option value='english' selected>English</option>" +
         "<option value='french'>French</option></select>" +
         // ... add any other languages here ...
         "<input type='submit' value='Greet Me!'/>" +
         "</form>";

      return Content(html, "text/html");
   }

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Part 2: POST Request

  1. Include a new public static method, CreateMessage, in the HelloController that takes a name as well as a language string. Based on the language string, you’ll display the proper greeting.
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   public static string CreateMessage(string name, string language)
   {
      string helloTranslation = "";
      switch (language)
      {
         case "french":
            helloTranslation = "Bonjour ";
            break;
         case "english":
            helloTranslation = "Hello ";
            break;
         // ... add any other languages here ...
      }
      return helloTranslation + name;
   }

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