asp.net mvc - Multiple posts on click to submit form using jquery dialog and asp mvc3 -

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i using following form :

    @using (ajax.beginform("saveitem", "itemscontroller", null, new ajaxoptions() { onsuccess = "onformsubmit" }, new { id = "itemsaveform" })) { // form fields below  }

and fallowing javascript code manage :

  function onformsubmit(content) {         $("#dialog-form").dialog("close");         $("#form-data").html(""); //empty form          $.post('@url.action("getitemrow", "itemscontroller")', { id: id, adm:true }, function (data) {            // update logic.. ignore             }          });     }

and jquery dialog script witch use submit :

 $(function () {         $("#dialog:ui-dialog").dialog("destroy");          $("#dialog-form").dialog({             autoopen: false,             height: 255,             width: 420,             modal: true,             buttons: {                 "add": function () {                     var bvalid = true;                     $("#itemsaveform").submit();                 },                 cancel: function () {                     $(this).dialog("close");                 }             },             close: function () {              }         });     });

and every time press add button dialog box... multiple submissions. ideeas why?

i suspect following line origin of problems:

$("#itemsaveform").submit();

how using normal html form:

@using (html.beginform("saveitem", "items", formmethod.post, new { id = "itemsaveform" }))    {     ... }

and configure add button on dialog this:

'add': function () {     var bvalid = true;     var form = $('#itemsaveform');     $.ajax({         url: form.attr('action'),         type: form.attr('method'),         data: form.serialize(),         success: onformsubmit     }); }

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