ASP NET MVC - Getting QueryString values

Question

Under ASP NET MVC are you supposed to pick up QueryString params the same way you do in ASP NET WebForms  or does the  AcceptVerbs HttpVerbs Get   declaration get used somehow

User · Answer

You can always use Request QueryString collection like Web forms  but you can also make MVC handle them and pass them as parameters  This is the suggested way as it s easier and it will validate input data type automatically

User · Answer

I recommend using the ValueProvider property of the controller  much in the way that UpdateModel TryUpdateModel do to extract the route  query  and form parameters required   This will keep your method signatures from potentially growing very large and being subject to frequent change   It also makes it a little easier to test since you can supply a ValueProvider to the controller during unit tests

User · Answer

I think what you are looking for is  Request QueryString  QueryStringName     and you can access it on views by adding     now look at my example    I generated a Url with QueryString    var listURL     Url RouteUrl new   controller    Sector   action    List    name   Request QueryString  name         the listURL  value is  Sector List name value   and when queryString is empty   listURL  value is  Sector List

User · Answer

Query string parameters can be accepted simply by using an argument on the action - i e   public ActionResult Foo string someValue  int someOtherValue          which will accept a query like     someroute someValue abc amp someOtherValue 123  Other than that  you can look at the request directly for more control

User · Answer

Actually you can capture Query strings in MVC in two ways       public ActionResult CrazyMVC string knownQuerystring          This is the known query string captured by the Controller Action Method parameter above   string myKnownQuerystring   knownQuerystring        This is what I call the mysterious  unknown  query string      It is not known because the Controller isn t capturing it   string myUnknownQuerystring   Request QueryString  unknownQuerystring       return Content myKnownQuerystring     -     myUnknownQuerystring        This would capture both query strings   for example    CrazyMVC knownQuerystring 123 amp unknownQuerystring 456  Output  123 - 456   Don t ask me why they designed it that way  Would make more sense if they threw out the whole Controller action system for individual query strings and just returned a captured dynamic list of all strings encoded file objects for the URL by url-form-encoding so you can easily access them all in one call  Maybe someone here can demonstrate that if its possible   Makes no sense to me how Controllers capture query strings  but it does mean you have more flexibility to capture query strings than they teach you out of the box  So pick your poison    both work fine

[.net] ASP.NET MVC - Getting QueryString values

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