c# - How to send data from view to controller by "id"? -

i put first steps in asp. net , mvc , can not jump on 1 issue.

how can transfer data 2 class = "selectpicker" controller? here's code , attempts to:

model:

public class allocatingcodesinmachinesmodel {     public list<string> machinelist { get; set; }     public list<string> codescounterlist { get; set; }     public int numbersofavaiblecodes { get; set; } } 

controller:

[httpget] public actionresult allocatingcodesinmachines() {     int numbersofavaiblecodes = //get data db;     var codescounter = //get data db.tolist();     var machinelist = //get data db.tolist();       model.machinelist = machinelist;     model.codescounterlist = codescounter;     model.numbersofavaiblecodes = numbersofavaiblecodes;      return view(model); }  [httppost] public actionresult allocatingcodesinmachines(allocatingcodesinmachinesmodel model) {     var option1 = model.codescounterlist;     var option2 = model.machinelist;      return view(); }  public actionresult testaction(string x, string y) {     var option1 = x;     var option2 = y;      return view("allocatingcodesinmachines"); } 

view:

@using swifferr.models.viewmodels @model allocatingcodesinmachinesmodel @{     viewbag.title = "allocatingcodesinmachines";     layout = "~/views/shared/_layout.cshtml"; }  <h2>przypisywanie kodów maszyn</h2> @using (html.beginform("allocatingcodesinmachines", "actualcodes", formmethod.post, new { enctype = "multipart/form-data" })) {     <div class="row">         <div class="col-sm-12">             <p><h4>dostępne kody</h4></p>             <h5 class="text-center">liczba kodów dostępnych przydzielenia: <b>@model.numbersofavaiblecodes</b></h5>             <p><h4>przydzielanie kodów</h4></p>             <div class="col-sm-4">                 <p>liczba kodów przydzielanych maszyny </p>                 <select id="numbersofcodes" class="selectpicker">                     <option>wybierz...</option>                     @foreach (var item in @model.codescounterlist)                     {                         <option value="@item.tostring()">@item.tostring()</option>                     }                      <option value="wszystkie">wszystkie</option>                 </select>             </div>             <div class="col-sm-4">                 <p>maszyna: </p>                 <select id="machine" class="selectpicker">                     <option>wybierz...</option>                     @foreach (var item in @model.machinelist)                     {                         <option value="@item.tostring()">@item.tostring()</option>                     }                  </select>             </div>             <br /><br />             //***1***             <button type="submit" class="btn btn-info">dodaj</button>              //***2***             <input type="button" class="btn btn-danger" value="usuń" onclick="location.href='@url.action("testaction", "actualcodes", new {x = "numbersofcode", y = "machine"})'" />          </div>     </div> } 

i tried, unfortunately did not work out:

1 pass model view controller, not know how "make up" model on side view.

2 tried pass selected items "selectpicker"'s not know how transfer data using id

i know it's base. several days try solve problem , unfortunately fell.

thank in advance advice tips , fixes in thinking , identifying errors in code.

ps. sorry english.