javascript - How to use FormData for ajax file upload -


this html i'm generating dynamically using drag , drop functionality.

<form method="post" id="contact" name="13" class="form-horizontal wpc_contact" novalidate="novalidate" enctype="multipart/form-data"> <fieldset>     <div id="legend" class="">         <legend class="">file demoe 1</legend>         <div id="alert-message" class="alert hidden"></div>     </div>      <div class="control-group">         <!-- text input-->         <label class="control-label" for="input01">text input</label>         <div class="controls">             <input type="text" placeholder="placeholder" class="input-xlarge" name="name">             <p class="help-block" style="display:none;">text_input</p>         </div>         <div class="control-group">  </div>         <label class="control-label">file button</label>          <!-- file upload -->          <div class="controls">             <input class="input-file" id="fileinput" type="file" name="file">         </div>     </div>     <div class="control-group">              <!-- button -->          <div class="controls">             <button class="btn btn-success">button</button>         </div>     </div> </fieldset> </form>

this js code...

<script>     $('.wpc_contact').submit(function(event){         var formname = $('.wpc_contact').attr('name');         var form = $('.wpc_contact').serialize();                        var formdata = new formdata($(form)[1]);          $.ajax({             url : '<?php echo plugins_url(); ?>'+'/wpc-contact-form/resources/js/tinymce.php',             data : {form:form,formname:formname,ipadd:ipadd,formdata:formdata},             type : 'post',             processdata: false,             contenttype: false,             success : function(data){             alert(data);              }         });    }

for correct form data usage need 2 steps.

preparations

you can give whole form formdata() processing

var form = $('form')[0]; // need use standard javascript object here var formdata = new formdata(form);

or specify exact data formdata()

var formdata = new formdata(); formdata.append('section', 'general'); formdata.append('action', 'previewimg'); // attach file formdata.append('image', $('input[type=file]')[0].files[0]);

sending form

ajax request jquery looks this:

$.ajax({     url: 'your url here',     data: formdata,     type: 'post',     contenttype: false, // needed, don't omit (requires jquery 1.6+)     processdata: false, // needed, don't omit     // ... other options success , etc });

after send ajax request submit regular form enctype="multipart/form-data"

update: request cannot work without type:"post" in options, cause files must sent via post request.

note: contenttype: false available from jquery 1.6 onwards


Comments

Post a Comment

Popular posts from this blog

asynchronous - C# WinSCP .NET assembly: How to upload multiple files asynchronously -

i using winscp .net assembly uploading files. want upload multiple files asynchronous way. have created method works single upload. public class uploadingdata { private sessionoptions _sessionoptions; private session _session; //connection etc private void onconnected() { foreach (var fileinfo in localfileslist) { var task = task.factory.startnew(() => uploadfilesasync(fileinfo)); } } private async task uploadfilesasync(string file) { string remotefilepath = _session.translatelocalpathtoremote(file, @"/", "/test_data_upload"); var uploading = _session.putfiles(file, remotefilepath, false); //when done await task.run(() => thread.sleep(1000)); } } please suggest me correct way. thanks you can use backgroundworker class this: string[] images = new string[50]; foreach (var path in images) { backgroundworker
Read more

aws api gateway - SerializationException in posting new Records via Dynamodb Proxy Service in API -

i getting "__type": "com.amazon.coral.service#serializationexception" as reply in postman & in test console in api gateway trying post record directly dynamodb using api proxy services.. referring aws article - https://aws.amazon.com/blogs/compute/using-amazon-api-gateway-as-a-proxy-for-dynamodb/ here's mapping { "tablename": "tablenamegoeshere", "item": { "id" : "$context.requestid" "eventname" : "$input.path('$.eventname')", "timestamp" : $input.path('$.timestamp'), "answers": "$util.parsejson($input.path('$.answers'))" } } update: did asked ... , worked if try add array of json objects gives me above same error - here's trying now. please - couldnt find on google well #set($inputroot = $input.path('$')) { "tablename": "answer", "item": {
Read more

asp.net - Problems sending emails from forum -

i have been redesigning site has message board, has been written guy looked after site. it has few problems , written in .asp , uses .mdb files database. you can see whole thing here . feel free post if helps, test thing have set using original files , new database. the basic problem when posts message, supposed email sent them, have posted it. when replies, originator supposed message, replier has been posted. i’d have thought @ point in process there should script/file in postmessage.asp? the postmessage.asp page below. <% option explicit %> <!-- #include virtual="common/adovbs.inc" --> <html> <head> <meta http-equiv="content-type" content="text/html; charset=windows-1252"> <meta name="generator" content="microsoft frontpage 4.0"> <meta name="progid" content="frontpage.editor.document"> <title>new page 2</title> <base target="_self"
Read more