javascript - MVC 5 Get Values From Cascade Dropdowns -

i new mvc.net 5; developing application dropdowns , forms. dropdowns created model , cant fugure out how take falues dropdowns. here part of code:

first dropdown partial view:

@using system.data.sqlclient @model cars.web.models.testmodel  @using (ajax.beginform("getbymake", "cars", null, new ajaxoptions {     httpmethod = "post",     updatetargetid = "models",     insertionmode = insertionmode.replace }, new { id = "selectmarke" })) {     @html.dropdownlistfor(         m => m.selectedmarkeid,         new selectlist(model.markes, "id", "name"),         string.empty         ) }  <script>     $('#selectedmarkeid').change(function () {         console.log("asd");         $('#selectmarke').submit();     }); </script> 

here second:

@model  cars.web.models.testmodel  @if (model.models != null && model.models.any()) {       @html.dropdownlist(             "models",             new selectlist(model.models, "id", "modelname"),             string.empty             ) } 

i can pass firstone id second 1 form controller, think, not right way. wonder if add more forms, how bind them 2 drop down on submit. thanks

when use:

@html.dropdownlistfor(         m => m.selectedmarkeid,         new selectlist(model.markes, "id", "name"),         string.empty         ) 

the name of dropdownlist "selectedmarkeid".

when use:

@html.dropdownlist(             "models",             new selectlist(model.models, "id", "modelname"),             string.empty             ) 

the name of dropdownlist "models"

the controller must have parameters match name of inputs. this:

[httppost] public actionresult someaction (int models, int selectedmarkeid) {     //selectedmarkeid selected value of first drop down list     //models selected value of second drop down list     //your code here } 

you can use object, contains properties match names of inputs. this:

public class testmodel {      public int models { get; set; }      public int selectedmarkeid { get; set; } }  [httppost] public actionresult someaction (testmodel model) {     //selectedmarkeid selected value of first drop down list     //models selected value of second drop down list     //your code here }