Click here to Skip to main content
12,246,735 members (54,377 online)
Click here to Skip to main content
Add your own
alternative version

Tagged as


17 bookmarked

Multiple File Upload in MVC

, 7 Aug 2014 CPOL
Rate this:
Please Sign up or sign in to vote.
Multiple file upload in MVC


I had a requirement in MVC 4 application - A multi file uploader control that has options:

  • Select multiple files at a time
  • Select from different folder
  • List all selected files
  • Remove files from the list (Filtering)
  • When submitting - Save only filtered one
  • Get page model also in the Action
  • Save attachments after saving the model saving or some business logic

Issues I Faced

I was getting the partial needs - Uploader control, but Model received is empty - at Action in our controller.
When Model is filled, the filtered list is incorrect (deleted files also appeared).

How I Solved It

I created a JS script that will make the <input type="file" /> control get recreated and preserve the HttpPostedFileBase files + removed/filtered files in a Hidden field - This maintains the filtration in deleting selected files also.

When user puts some files in the fileupload control, "onchange" event, it will hide the control and create a similar control and place there and allow users to select again. The selected files are taken and maintained in a Hidden field appending its names. With these names - we can filter the posted files list (List) in our action. So while passing Model - keep this hidden field value.

Using the Code

Please find the source code attached here for the full demo.

I will explain how it works. See the code snippet below.

Given below is the snippet of HTML that has a fileUploader and a button that submits to our server action.

@using (Html.BeginForm("UploadAction", "Home", 
FormMethod.Post, new { enctype = "multipart/form-data", id = "frmID" }))
    @Html.HiddenFor(i => i.FilesToBeUploaded)

    <div class="labelstyle">

    <div id="uploaders">
        <input type="file" id="fileToUpload" 
        name="fileUpload" multiple="multiple" style="float: left;" />
        <br />
        <span id="spnFile" style="float: left; color: #FF0000"></span>
    <br />
 <div class="col-lg-6">
        <button class="btn btn-primary" id="btnAddIssue" type="submit">Submit</button>
    <br />
    <div class="control-section" style="padding: 0px;">
        <div id="selectedFiles"></div>

This portion is the script that is responsible for creation of the multi file upload and hiding the previous uploader + storing the filtered attachments to a hidden field.

<script src="~/Scripts/jquery-1.7.1.js"></script>

    var nowTemp = new Date();
    var now = new Date(nowTemp.getFullYear(), nowTemp.getMonth(), nowTemp.getDate(), 0, 0, 0, 0);
    var files;
    var storedFiles = [];
    var upc = 0;   

    $(function () {

        $(":file").attr('title', '  ');
        var $loading = $('#loadingDiv').hide();

        $("input[id^='fileToUpload']").change(function (e) {

        selDiv = $("#selectedFiles");

    function doReCreate(e) {
        upc = upc + 1;


            type: 'file',
            multiple: 'multiple',
            id: 'fileToUpload' + upc,
            class: 'fUpload',
            name: 'fileUpload',
            style: 'float: left',
            title: '  ',
            onchange: "doReCreate(event)"


    function handleFileSelect(e) {

        //selDiv.innerHTML = ""; storedFiles = []; 
        selDiv = document.querySelector("#selectedFiles");

        if (! return;

        //selDiv.innerHTML = "";
        files =;

        for (var i = 0; i < files.length; i++) {
            //if (i == 0) { selDiv.innerHTML = ""; storedFiles = []; }
            var f = files[i];
            selDiv.innerHTML += "<div>" + + 
            "<a onclick='removeAtt(this)'> X </a></div>";
        $('#@Html.IdFor(i => i.FilesToBeUploaded)').val(storedFiles);

    function removeAtt(t) {
        var serEle = $(t).parent().text().slice(0, -3);
        var index = storedFiles.indexOf(serEle);
        if (index !== -1) {
            storedFiles.splice(index, 1);

        $('#@Html.IdFor(i => i.FilesToBeUploaded)').val(storedFiles);


And find the server code, where it receives the model + hidden element and the full attachments that we need.

       public ActionResult UploadAction(AnyModel model, List<HttpPostedFileBase> fileUpload)
           // Your Code - / Save Model Details to DB

           // Handling Attachments -
           foreach (HttpPostedFileBase item in fileUpload)
               if (Array.Exists(model.FilesToBeUploaded.Split(','), s => s.Equals(item.FileName)))
                   //Save or do your action -  Each Attachment ( HttpPostedFileBase item )
           return View("Index");

Also, if style "X" to remove selected files, update your script code accordingly.

Points of Interest

This is a simple one and a tricky approach - Recommended for small file(s) size - But can be any number of files .


This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


About the Author

Rigin VP
Software Developer
India India
Am a software Developer
Working in mostly MS Platform, interested in scripting languages.

Am from South India - Kerala Smile | :)


You may also be interested in...

Comments and Discussions

QuestionFixed additional data being sent to server Pin
karlpdotcom18-Nov-15 22:42
memberkarlpdotcom18-Nov-15 22:42 
AnswerRe: Fixed additional data being sent to server Pin
Rigin VP3-Dec-15 5:25
memberRigin VP3-Dec-15 5:25 
Questionprepopulate files to upload Pin
Member 1193506328-Sep-15 10:44
memberMember 1193506328-Sep-15 10:44 
AnswerRe: prepopulate files to upload Pin
Rigin VP28-Sep-15 21:10
memberRigin VP28-Sep-15 21:10 
QuestionNot cross-browser compatible - check here for su Pin
Cody Christian28-Apr-15 14:03
memberCody Christian28-Apr-15 14:03 
Questioncant save files to folder Pin
Member 1154163220-Mar-15 8:17
memberMember 1154163220-Mar-15 8:17 
Questionsame code are not working with IE 9.0 Pin
krish.singh17-Feb-15 10:28
memberkrish.singh17-Feb-15 10:28 
AnswerRe: same code are not working with IE 9.0 Pin
Rigin VP17-Feb-15 10:38
memberRigin VP17-Feb-15 10:38 
GeneralRe: same code are not working with IE 9.0 Pin
krish.singh18-Feb-15 6:03
memberkrish.singh18-Feb-15 6:03 
Questionsame code isnt working in IE Pin
Naveen861117-Feb-15 9:11
memberNaveen861117-Feb-15 9:11 
AnswerRe: same code isnt working in IE Pin
Rigin VP17-Feb-15 9:35
memberRigin VP17-Feb-15 9:35 
Generalhow to store image Pin
Prasenjit Dutta6-Jan-15 1:05
memberPrasenjit Dutta6-Jan-15 1:05 
AnswerRe: how to store image Pin
Rigin VP6-Jan-15 3:29
memberRigin VP6-Jan-15 3:29 
GeneralRe: how to store image Pin
Rigin VP11-Jan-15 20:19
memberRigin VP11-Jan-15 20:19 
QuestionSource Code is missing Pin
snprani27-Oct-14 20:55
membersnprani27-Oct-14 20:55 
QuestionMissing Zip Pin
Member 1116390218-Oct-14 19:01
memberMember 1116390218-Oct-14 19:01 
AnswerRe: Missing Zip Pin
Member 1116390218-Oct-14 19:03
memberMember 1116390218-Oct-14 19:03 
Answerfile upload Pin
Chhabra_Ankur30-Sep-14 22:38
memberChhabra_Ankur30-Sep-14 22:38 
GeneralRe: file upload Pin
Rigin VP1-Oct-14 2:28
memberRigin VP1-Oct-14 2:28 
GeneralRe: file upload Pin
Chhabra_Ankur6-Oct-14 21:05
memberChhabra_Ankur6-Oct-14 21:05 
GeneralRe: file upload Pin
Rigin VP6-Oct-14 23:26
memberRigin VP6-Oct-14 23:26 
QuestionZip file is missing... Pin
siva000725-Sep-14 1:11
membersiva000725-Sep-14 1:11 
AnswerRe: Zip file is missing... Pin
Chhabra_Ankur1-Oct-14 2:15
memberChhabra_Ankur1-Oct-14 2:15 
GeneralRe: Zip file is missing... Pin
Rigin VP1-Oct-14 2:27
memberRigin VP1-Oct-14 2:27 
QuestionZip File Not Available Pin
surajemo19-Sep-14 9:09
membersurajemo19-Sep-14 9:09 

General General    News News    Suggestion Suggestion    Question Question    Bug Bug    Answer Answer    Joke Joke    Praise Praise    Rant Rant    Admin Admin   

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.

| Advertise | Privacy | Terms of Use | Mobile
Web01 | 2.8.160426.1 | Last Updated 7 Aug 2014
Article Copyright 2014 by Rigin VP
Everything else Copyright © CodeProject, 1999-2016
Layout: fixed | fluid