CODEWITHSUNDEEP
asp.net-mvc-4
Dave
Dave

Reputation: 263

Question mark in URL in MVC

When I generate my hyperlink dynamically then I get a question mark added in the URL where does it comes from what is the meaning of it.

<li> @Html.ActionLink(@genre.Name, "Browse", new { genre = genre.Name })</li>

 http://localhost:26239/Store/Browse?genre=Disco

Upvotes: 0

Views: 3323

Answers (3)

Miroslav Holec
Miroslav Holec

Reputation: 3217

There is typical example. We have one route for BookDetail:

routes.MapRoute(
   name: "BookDetail",
   url: "{controller}/{action}/{id}",
   defaults: new { controller = "Book", action = "Detail", id = UrlParameter.Optional }
);

First example - with one parameter id defined in route rule

<li>@Html.ActionLink(@item.Name, "Detail", new { id = item.Id })</li>

http://localhost:26239/Book/Detail/221

Second example - with another parameter xy not defined in route

<li>@Html.ActionLink(@item.Name, "Detail", new { id = item.Id, xy = item.Xy })</li>

http://localhost:26239/Book/Detail/221?xy=SomeValue

Third example - without parameters (because id is optional)

<li>@Html.ActionLink(@item.Name, "Detail")</li>

http://localhost:26239/Book/Detail

Upvotes: 2

Dmitry S.
Dmitry S.

Reputation: 8513

If "genre" is not defined in the route that matches the action method as a parameter, it will be passed as query string.

Upvotes: 2

PaulProgrammer
PaulProgrammer

Reputation: 17690

That's called a query parameter. It's a very common way to pass variables in the URL.

Upvotes: 1

Related Questions