php - jquery change event to submit form using ajax -

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here form

<form name="uploadimg" id="uploadimg" class="profile-image" enctype="multipart/form-data">         <input type="file" name="profile" id="updprofileimg"> </form>

here jquery event

$("#updprofileimg:file").change(function() {     $('#uploadimg').submit(function() {     var querystring = new formdata($('form')[0]);     $.ajax({         type: "post",         url: 'index.php?route=account/edit/upload',         data: querystring,         contenttype: false,         processdata: false,         beforesend: function() {         },         success: function() {         }     }) }) })

but change event not triggering form submit tried trigger('submit') page refreshing instead of submitting in ajax.

you binding events incorrectly. have it, changing field trigger binding of submit. need this:

// bind submit event $('#uploadimg').submit(function() {     var querystring = new formdata($('form')[0]);     $.ajax({         type: "post",         url: 'index.php?route=account/edit/upload',         data: querystring,         contenttype: false,         processdata: false,         beforesend: function() {         },         success: function() {         }     }); });  // bind change event trigger submit $("#updprofileimg:file").change(function() {     $("#uploadimg").submit(); });

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