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    File Uploader

    Async Upload

    Documentation

    In this demo, the FileUploader component is configured for asynchronous upload. Use the File types drop-down menu to select acceptable file types for the Open file dialog. The Upload mode drop-down menu allows you to specify whether the file is uploaded on a button click or instantly after the file has been selected. In addition, you can specify whether the FileUploader allows multiple file selection.

    To select files, click the Select file button or drop the files directly on the component. If the upload mode is «useButtons», you must click the Upload button or a corresponding button for each file to initiate upload.

    NOTE

    This demo does not actually upload files. To upload files, assign the URL of a page providing server scenarios for saving uploaded files to the uploadUrl configuration property of the component.

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    window.onload = function () { const ViewModel = function () { const that = this; that.multiple = ko.observable(false); that.accept = ko.observable('*'); that.value = ko.observableArray(); that.uploadMode = ko.observable('instantly'); that.showUploadedFiles = ko.computed( () => that.value().length > 0, ); that.options = { multiple: that.multiple, accept: that.accept, value: that.value, uploadMode: that.uploadMode, uploadUrl: 'https://js.devexpress.com/Demos/NetCore/FileUploader/Upload', }; that.acceptOptions = { dataSource: [ { name: 'All types', value: '*' }, { name: 'Images', value: 'image/*' }, { name: 'Videos', value: 'video/*' }, ], valueExpr: 'value', displayExpr: 'name', value: that.accept, }; that.uploadOptions = { items: ['instantly', 'useButtons'], value: that.uploadMode, }; }; ko.applyBindings(new ViewModel(), document.getElementById('fileuploader')); };
    <!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>DevExtreme Demo</title> <meta http-equiv="X-UA-Compatible" content="IE=edge" /> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0" /> <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script> <script>window.jQuery || document.write(decodeURIComponent('%3Cscript src="js/jquery.min.js"%3E%3C/script%3E'))</script> <script src="https://cdnjs.cloudflare.com/ajax/libs/knockout/3.4.2/knockout-min.js"></script> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/22.1.3/css/dx.common.css" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/22.1.3/css/dx.light.css" /> <script src="https://cdn3.devexpress.com/jslib/22.1.3/js/dx.all.js"></script> <link rel="stylesheet" type="text/css" href="styles.css" /> <script src="index.js"></script> </head> <body class="dx-viewport"> <div class="demo-container"> <div id="fileuploader"> <div class="widget-container"> <div data-bind="dxFileUploader: options"> </div> <div class="content"> <div data-bind="if: showUploadedFiles"> <h4>Selected Files</h4> </div> <div data-bind="foreach: value"> <div class="selected-item"> Name: <span data-bind="text: name"></span><br /> Size: <span data-bind="text: size"></span>bytes<br /> Type: <span data-bind="text: type"></span><br /> Last Modified Date: <span data-bind="text: lastModifiedDate"></span> </div> </div> </div> </div> <div class="options"> <div class="caption">Options</div> <div class="option"> <span>File types</span> <div data-bind="dxSelectBox: acceptOptions"></div> </div> <div class="option"> <span>Upload mode</span> <div data-bind="dxSelectBox: uploadOptions"></div> </div> <div class="option"> <div data-bind="dxCheckBox: {value: multiple, text: 'Allow multiple files selection'}"></div> </div> </div> </div> </div> </body> </html>
    .widget-container { margin-right: 320px; } .content h4 { margin-bottom: 10px; font-weight: 500; font-size: 18px; } .content { margin-top: 50px; margin-left: 10px; } .selected-item { margin-bottom: 20px; } #selected-files { display: none; } .options { padding: 20px; background-color: rgba(191, 191, 191, 0.15); position: absolute; right: 0; top: 0; bottom: 0; width: 260px; } .caption { font-size: 18px; font-weight: 500; } .option { margin-top: 10px; }