You can’t modify much about the input[type=file] control itself. Since clicking a label element correctly paired with an input will activate/focus it, we can use a label to trigger the OS browse dialog. Here is how you can do it… label { cursor: pointer; /* Style as you please, it will become the visible UI … Read more
Angular 2 provides good support for uploading files. No third party library is required. <input type=”file” (change)=”fileChange($event)” placeholder=”Upload file” accept=”.pdf,.doc,.docx”> fileChange(event) { let fileList: FileList = event.target.files; if(fileList.length > 0) { let file: File = fileList[0]; let formData:FormData = new FormData(); formData.append(‘uploadFile’, file, file.name); let headers = new Headers(); /** In Angular 5, including the … Read more
You can use the File constructor: var file = new File([myBlob], “name”); As per the w3 specification this will append the bytes that the blob contains to the bytes for the new File object, and create the file with the specified name http://www.w3.org/TR/FileAPI/#dfn-file
Here’s another way to do it: add a div in your form with a classname dropzone, and implement dropzone programmatically. HTML : <div id=”dZUpload” class=”dropzone”> <div class=”dz-default dz-message”></div> </div> JQuery: $(document).ready(function () { Dropzone.autoDiscover = false; $(“#dZUpload”).dropzone({ url: “hn_SimpeFileUploader.ashx”, addRemoveLinks: true, success: function (file, response) { var imgName = response; file.previewElement.classList.add(“dz-success”); console.log(“Successfully uploaded :” + … Read more
If upload_file is meant to be the file, use: files = {‘upload_file’: open(‘file.txt’,’rb’)} values = {‘DB’: ‘photcat’, ‘OUT’: ‘csv’, ‘SHORT’: ‘short’} r = requests.post(url, files=files, data=values) and requests will send a multi-part form POST body with the upload_file field set to the contents of the file.txt file. The filename will be included in the mime … Read more
The following works in Chrome and FF, but i’ve yet to find a solution that covers IE10+ as well: // dragover and dragenter events need to have ‘preventDefault’ called // in order for the ‘drop’ event to register. // See: https://developer.mozilla.org/en-US/docs/Web/Guide/HTML/Drag_operations#droptargets dropContainer.ondragover = dropContainer.ondragenter = function(evt) { evt.preventDefault(); }; dropContainer.ondrop = function(evt) { // pretty … Read more
The Upload method’s HttpPostedFileBase parameter must have the same name as the the file input. So just change the input to this: <input type=”file” name=”file” /> Also, you could find the files in Request.Files: [HttpPost] public ActionResult Upload() { if (Request.Files.Count > 0) { var file = Request.Files[0]; if (file != null && file.ContentLength > … Read more
You can easily determine the file MIME type with JavaScript’s FileReader before uploading it to a server. I agree that we should prefer server-side checking over client-side, but client-side checking is still possible. I’ll show you how and provide a working demo at the bottom. Check that your browser supports both File and Blob. All … Read more
For correct form data usage you need to do 2 steps. Preparations You can give your whole form to FormData() for processing var form = $(‘form’)[0]; // You need to use standard javascript object here var formData = new FormData(form); or specify exact data for FormData() var formData = new FormData(); formData.append(‘section’, ‘general’); formData.append(‘action’, ‘previewImg’); … Read more
This setting goes in your web.config file. It affects the entire application, though… I don’t think you can set it per page. <configuration> <system.web> <httpRuntime maxRequestLength=”xxx” /> </system.web> </configuration> “xxx” is in KB. The default is 4096 (= 4 MB).