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up vote 31 down vote favorite
25

Here is my html form

<form name="myForm" ng-submit="">
    <input ng-model='file' type="file"/>
    <input type="submit" value='Submit'/>
</form>

I want to upload an image from local machine and want to read the content of the uploaded file. All this I want to do using angularjs.

When I try to print the value of $scope.file it comes as undefined.

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what about: stackoverflow.com/questions/12979712/… –  Cherniv Sep 2 '13 at 10:32

6 Answers 6

up vote 38 down vote accepted

Please note that solutions that use FormData(), such as the ones presented here in other answers, do not work correctly in older IE browsers. The correct solution should use a backup strategy for that, such as using iFrames. There are already many angular JS modules to perform file uploading:

I would advise you to choose one and use it, or have a look at its code.

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up vote 17 down vote

Below is working example of file upload:

http://jsfiddle.net/vishalvasani/4hqVu/

In this one function called 

setFiles

From View which will update the file array in controller

or

You can check jQuery File Upload using AngularJS

http://blueimp.github.io/jQuery-File-Upload/angularjs.html

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Hi, i was looking for something through which I can just upload one file and display just below it. However in your example I was not able to do same. Dont mind but I am new to this angularjs and my intention to learn to do this particular objective in a simpler yet robust way. –  Aditya Sethi Sep 4 '13 at 14:44
    
This helped a lot. Thanks! –  RachelD Dec 5 '13 at 21:03
    
Excellent example without using an additional library / extension. Thanks. –  markdsievers Apr 5 at 4:01
    
Very helpful, just a note.. this uses File API which doesn't work in IE9 or below. –  ArjaaAine Jul 18 at 22:21
up vote 2 down vote

http://jsfiddle.net/vishalvasani/4hqVu/ works fine in chrome and IE (if you update CSS a little in background-image). This is used for updating progress bar:

 scope.progress = Math.round(evt.loaded * 100 / evt.total)

but in FireFox angular's [percent] data is not updated in DOM successfully,although files are uploading successfully.

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For FF you can listen to load event and if the length is computable then fire a progress event to indicate the successful upload. github.com/danialfarid/angular-file-upload already takes care of that. –  danial Jan 9 at 7:36
    
It's there, but in given fiddle also it's checked and applied. Still no hope in FF. –  mayankcpdixit Jan 9 at 7:41
    
I think if you just call uploadProgress inside uploadComplete it should work for FF –  danial Jan 9 at 17:47
    
NO it doesn't, and even if it does can you please explain why? I've give a link to fiddle in my post. If possible can you please update it to working in FF and comment solution's link here? –  mayankcpdixit Jan 10 at 5:55
    
What version of Firefox? –  danial Jan 10 at 15:43
up vote 4 down vote

The blog post at this location (thanks to Jenny Louthan) contains a directive and some sample code. And it just works straight out of the box. The accompanying explanation is very useful.

http://uncorkedstudios.com/blog/multipartformdata-file-upload-with-angularjs

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up vote 7 down vote

The easiest is to use HTML5 API, namely FileReader (http://jsfiddle.net/f8Hee/1/).

HTML is pretty straightforward:

<input type="file" id="file" name="file"/>
<button ng-click="add()">Add</button>

In your controller define 'add' method:

$scope.add = function(){
  var f = document.getElementById('file').files[0],
      r = new FileReader();
  r.onloadend = function(e){
    var data = e.target.result;
    //send you binary data via $http or $resource or do anything else with it
  }
  r.readAsBinaryString(f);
}

Note : readAsBinaryString() method is deprecated and readAsArrayBuffer() should be used instead.

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please explain what is happening here! Whats reader? –  Bhumi Singhal Mar 22 at 18:49
    
FileReader is a class from standard HTML5 File API w3.org/TR/FileAPI. It allows you to read data from file specified in html input element and process it inside onloadend callback function. You don't need any library to use this API, its already in your browser (unless you use very old one). Hope this helps. –  yagger Mar 23 at 8:18
    
If i need to read an .xls file how can i do it ? –  Bhumi Singhal Mar 23 at 8:19
1  
This is already a different topic. I only can advise you not to use proprietary formats in your app, use de facto standard transition formats CSV or JSON. It has wide support in many JS libraries and custom parser is easy to write and maintain. In case you desperately need to parse almighty .xls, then there are solutions available online, probably very limited. –  yagger Mar 24 at 7:22
2  
FileReader.readAsBinaryString is deprecated as of 12 July 2012 Working Draft from the W3C. –  Shane Stillwell Apr 24 at 13:50
up vote 4 down vote

You can achieve nice file and folder upload using flow.js.

https://github.com/flowjs/ng-flow

Check out a demo here

http://flowjs.github.io/ng-flow/

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