asp.net - Populate Razor DropDownList with Object passed from Controller C# -

i saw couple of questions stuff there no 1 clear me. have this:

currencies.cs

public class currencies {     public worldcurrencies.currencytypes get()     {         var url = "http://openexchangerates.org/api/currencies.json";         var currencies = _download_serialized_json_data<currencytypes>(url);          return currencies;     }      private static t _download_serialized_json_data<t>(string url) t : new()     {         using (var w = new webclient())         {             var json_data = string.empty;             // attempt download json data string             try             {                 json_data = w.downloadstring(url);             }             catch (exception) { }             // if string json data not empty, deserialize class , return instance              var res = !string.isnullorempty(json_data) ? jsonconvert.deserializeobject<t>(json_data) : new t();             return res;         }     } } 

webapicontroller.cs

public class webapicontroller : controller {     public actionresult converter()     {         worldcurrencies.currencies curr = new worldcurrencies.currencies();          return view("index", curr.get());     } } 

and index.cshtml

<div class="form-group">     <label for="fromc">from currency</label>     <div class="col-md-6">         @html.dropdownlist("prueba", model, )     </div> </div> 

i trying populate dropdownlist object called currencies, don't have clear idea of how implement this.

any clues?

edit: curr.get() returns:

    res {worldcurrencies.currencytypes} worldcurrencies.currencytypes     aed "united arab emirates dirham"   string     afn "afghan afghani"    string     "albanian lek"  string     amd "armenian dram" string     ang "netherlands antillean guilder" string     aoa "angolan kwanza"    string     ars "argentine peso"    string     aud "australian dollar" string     awg "aruban florin" string     azn "azerbaijani manat" string     bam "bosnia-herzegovina convertible mark"   string     bbd "barbadian dollar"  string     bdt "bangladeshi taka"  string     bgn "bulgarian lev" string     ... 

let's take 1 thing time.

what format of data?

it object this:

{     "aed": "united arab emirates dirham",     "afn": "afghan afghani",     "all": "albanian lek",     "amd": "armenian dram",     "ang": "netherlands antillean guilder" } 

so have bag key/value pairs, key currency's code , value currency's name.

how can deserialize this?

as simple below:

var res = jsonconvert.deserialize<dictionary<string,string>>(json_data); 

what want show in our view?

at least dropdown available currencies. if need more data show, have add properties in model , initialize them correspondingly, when create model.

how can achieve this?

@model currencymodel  <div class="form-group">     <label for="fromc">from currency</label>     <div class="col-md-6">         @html.dropdownlist("currencies", currencymodel.currencies)     </div> </div> 

what need?

a model @ least 1 property of type ienumerable<selectlistitem> called currencies:

public class currencymodel {     public ienumerable<selectlistitem> currencies { get; set; } } 

who create model ?

this responsibility belongs controller.

public class webapicontroller : controller {     public actionresult converter()     {         var currencies = new currenciesrepository.getall();          var currencymodel = new currencymodel         {             currencies =                 currencies.select(currency => new selectlistitem {                                                   text = currency.value,                                                     value = currency.key});         }         return view("index", currencymodel);     } } 

what needed now create 1 new class currenciesrepository

public class currenciesrepository {     string _url = "http://openexchangerates.org/api/currencies.json";      public idictionary<string, string> getall()     {         using (var webclient = new webclient())         {             var data = webclient.downloadstring(_url);             var currencies= jsonconvert.deserializeobject<dictionary<string,string>>(data);              return currencies;         }     } }