Serialize Form Data during Async Upload

Environment

Product	Progress® Kendo UI® Upload for jQuery
Operating System	Windows 10 64bit
Visual Studio Version	Visual Studio 2017
Preferred Language	JavaScript

Description

How can I include a collection of form fields as metadata during asynchronous uploads?

Solution

The output from the commonly used jQuery.serializeArray helper is not directly usable in the upload event and needs to be processed. The following example demonstrates how to achieve this.

EditPreviewOpen In Dojo

    <form id="form"/>
      <input type="text" name="name1" value="value1" />
      <input type="text" name="name2" value="value2" />
    </form>

    <input type="file" id="files" />

    <script>
      $('#files').kendoUpload({
        async: {
            saveUrl:'placeholder'
        },
        upload: function (e) {
          var data = {};
          var form = $('#form').serializeArray();

          $.each(form, function() {
              data[this.name] = this.value;
          });

          e.data = data;
        }
      });
    </script>

The network request is expected to look like the one shown below.

------WebKitFormBoundaryXLTaUOP1FzKWJJlD
Content-Disposition: form-data; name="name1"

value1
------WebKitFormBoundaryXLTaUOP1FzKWJJlD
Content-Disposition: form-data; name="name2"

value2
------WebKitFormBoundaryXLTaUOP1FzKWJJlD
Content-Disposition: form-data; name=""; filename="filename.txt"
Content-Type: text/plain


------WebKitFormBoundaryXLTaUOP1FzKWJJlD--