form-data

问题 i have implemented this script for uploading files with ajax, it works perfect in other browsers except for explorer, i noticed that formData is not supported by IE9 and less, are there any alternatives for formData in IE, and i want use clean javascript function doObjUploadExplorer(url, lnk_id, file, progress, success, content, frm, div_dlg, start_func){ var file_input = null, frm_data = new FormData(), req; try { //firefox, chrome, safari etc req = new XMLHttpRequest(); } catch (e) { //

问题 I need to upload file sending extra paramaters. I have found the following post in stackoverflow: Webapi ajax formdata upload with extra parameters It describes how to do this using MultipartFormDataStreamProvider and saving data to fileserver. I do not need to save file to server, but to DB instead. And I have already working code using MultipartMemoryStreamProvider, but it doesn\'t use extra parameter. Can you give me clues how to process extra paramaters in webapi? For example, if I add

问题 I\'m using ajax to submit a multipart form with array, text fields and files. I append each VAR to the main data as so var attachments = document.getElementById(\'files\'); var data= new FormData(); for (i=0; i< attachments.files.length; i++){ data.append(\'file\', attachments.files[i]); console.log(attachments.files[i]); data.append (\'headline\', headline); data.append (\'article\', article); data.append (\'arr\', arr); data.append (\'tag\', tag); then I use the ajax function to send it to

问题 It is possible to set .files property of <input type=\"file\"> element to a FileList from for example a different <input type=\"file\"> element .files property or DataTransfer.files property. See Make .files settable #2866, What happens between uploading a file to an HTML form and submitting it?. FileList object has a Symbol.iterator property which we can use to set a File object which is iterable, however the .files .length is still set to 0 and passing a <form> having <input type=\"file\">

问题 I\'ve tried console.log and looping through it using for in . Here it the MDN Reference on FormData. Both attempts are in this fiddle. var fd = new FormData(), key; // poulate with dummy data fd.append(\"key1\", \"alskdjflasj\"); fd.append(\"key2\", \"alskdjflasj\"); // does not do anything useful console.log(fd); // does not do anything useful for(key in fd) { console.log(key); } How can I inspect form data to see what keys have been set. 回答1: Updated Method: As of March 2016, recent

问题 I\'ve got a problem sending a file to a serverside PHP-script using jQuery\'s ajax-function. It\'s possible to get the File-List with $(\'#fileinput\').attr(\'files\') but how is it possible to send this Data to the server? The resulting array ( $_POST ) on the serverside php-script is 0 ( NULL ) when using the file-input. I know it is possible (though I didn\'t find any jQuery solutions until now, only Prototye code (http://webreflection.blogspot.com/2009/03/safari-4-multiple-upload-with

问题 How do I pass a whole set model object through formdata and convert it to model type in the controller? Below is what I\'ve tried! JavaScript part: model = { EventFromDate: fromDate, EventToDate: toDate, ImageUrl: imgUrl, HotNewsDesc: $(\"#txthtDescription\").val().trim(), }; formdata.append(\"model\",model); then pass it through AJAX, it will be a string, and if I check the value of Request.Form[\"model\"] the result will be same, that is it will be received as string and value will be \"