asp.net mvc - Fill a combo depending on user choice -

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i have combo 1 contains quantity , combo 2 contains max value selected in combo 1 how can set values of combo 2 after user change combo 1

combo 1:

  @html.dropdownlistfor(model => model.qtitetobuy, new selectlist(            new list<object>{                     new { value = 0 , text = "0"},                    new { value = 1 , text = "1"},                    new { value = 2 , text = "2"},                    new { value = 3 , text = "3"},                    new { value = 4 , text = "4"},                    new { value = 5 , text = "5"},                    new { value = 6 , text = "6"},                    new { value = 7 , text = "7"},                    new { value = 8 , text = "8"},                    new { value = 9 , text = "9"}                 }, "value", "text"))

if user choose combo1 = 4 should have in combo 2 0 4

@melom made sample here should started. let me know if have further questions.

to summarize first populated combo1 on postback followed populating combo2 using ajax.

view:

<div>     @html.dropdownlist("combo1", (ienumerable<selectlistitem>)viewbag.combo)      <select id="combo2"></select>  </div>  <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.4/jquery.min.js"></script>  <script type="text/javascript">     $(document).ready(function(){            $('#combo1').change(function(){                  $.ajax({                 type: "get",                 url: "@url.action("getsecondcombodata", "home")",                 data: { val : $(this).val() },                 success: function (data) {                     var options = $("#combo2");                     options.empty();                     $.each(data, function() {                         options.append($("<option />").val(this).text(this));                     });                 },                 datatype: 'json'             });              });      }); </script>

action:

[httpget] public actionresult index() {     var values = new list<dynamic>     {         new { value = 0 , text = "0"},         new { value = 1 , text = "1"},         new { value = 2 , text = "2"},         new { value = 3 , text = "3"},         new { value = 4 , text = "4"},         new { value = 5 , text = "5"},         new { value = 6 , text = "6"},         new { value = 7 , text = "7"},         new { value = 8 , text = "8"},         new { value = 9 , text = "9"}     };      viewbag.combo = new selectlist(values, "value", "text");      return view(); }  [httpget] public jsonresult getsecondcombodata(int val) {     return json(enumerable.range(0, val+1), jsonrequestbehavior.allowget); }

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