RouteValues vs QueryString MVC?

Question

Whats the differences between QueryString in Request and RouteData.Values ?
Can we use them instead ?

Mariusz · Accepted Answer · 2012-12-30 16:44:02Z

15

RouteValues are gathered from querystring only if are defined in global.asax, for example:

routes.MapRoute(
 "Example", // Route name
 "{controller}/{action}/{id}/{inRouteValues}", // URL with parameters
 new { controller = "Home", action = "Index" } // Parameter defaults
 );

will catch inRouteValues from yourdomain/testController/testAction/14/myTestValue where RouteData.Values["inRouteValues"] will be string with value "myTestValue".
But if you will build URL like yourdomain/testController/testAction/14?inRouteValues=myTestValue it won't get it. So difference is that RouteData.Values will get only values from URLs that match RouteCollectionfrom your global.asax and QueryString will catch every value from your querystring if it matches variable name.

answered Dec 30, 2012 at 16:44

Mariusz

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