file-upload

SPRING REST: The request was rejected because no multipart boundary was found

The problem isn’t in your code – it’s in your request. You’re missing boundary in your multipart request. As it said in specification: The Content-Type field for multipart entities requires one parameter, “boundary”, which is used to specify the encapsulation boundary. The encapsulation boundary is defined as a line consisting entirely of two hyphen characters … Read more

trigger file upload dialog using javascript/jquery

You mean something like this? http://jsfiddle.net/CSvjw/ $(‘input[type=text]’).click(function() { $(‘input[type=file]’).trigger(‘click’); }); $(‘input[type=file]’).change(function() { $(‘input[type=text]’).val($(this).val()); }); Note, though, that the value given by the file input is fake for security reasons. If you want to just have the file name show up, you can cut out the slashes. Here’s an example of how to do it using … Read more

File uploading in AJAX updatepanel without full postback

For solve this problem, Please see the following step. Add ajax-upload to your detail view. iframe-based uploader like Resource#1. Silverlight-based & Flash-based uploader. I like this technique because it doesn’t require any server-side script for display current upload status. But in HTML5, you can create this without using any web browser plug-in. Commercial uploader like … Read more

Android:How to upload .mp3 file to http server?

My final working JAVA and PHP code to upload a file from the Android’s SD card to my own Web Server. The Java/Android Code: private void doFileUpload() { HttpURLConnection conn = null; DataOutputStream dos = null; DataInputStream inStream = null; String existingFileName = Environment.getExternalStorageDirectory().getAbsolutePath() + “/mypic.png”; String lineEnd = “\r\n”; String twoHyphens = “–“; String … Read more

How to upload large files using MVC 4?

In web.config you need these (2GB all around): <system.web> <compilation debug=”true” targetFramework=”4.5″ /> <httpRuntime targetFramework=”4.5″ maxRequestLength=”2147483647″ executionTimeout=”1600″ requestLengthDiskThreshold=”2147483647″ /> <security> <requestFiltering> <requestLimits maxAllowedContentLength=”2147483647″ /> </requestFiltering> </security> … </system.web>

Validating for large files upon Upload

One possibility is to write a custom validation attribute: public class MaxFileSizeAttribute : ValidationAttribute { private readonly int _maxFileSize; public MaxFileSizeAttribute(int maxFileSize) { _maxFileSize = maxFileSize; } public override bool IsValid(object value) { var file = value as HttpPostedFileBase; if (file == null) { return false; } return file.ContentLength <= _maxFileSize; } public override string … Read more

How to reset ReactJS file input

I think you can just clear the input value like this : e.target.value = null; File input cannot be controlled, there is no React specific way to do that. Edit For old browsers (<IE11), you can use one of the following techniques. See http://jsbin.com/zurudemuma/1/edit?js,output (tested on IE10 & 9)