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    File Manager

    Entity Framework ORM

    The File Manager widget allows you to manage file system items that use the Entity Framework ORM to link to a database. You can use the Remote File Provider to connect to the file system on the client side. To process the widget's HTTP requests on the server, create your own file provider, which implements the IFileProvider interface.

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    import React from 'react'; import FileManager, { Permissions } from 'devextreme-react/file-manager'; import RemoteFileProvider from 'devextreme/ui/file_manager/file_provider/remote'; const remoteFileProvider = new RemoteFileProvider({ endpointUrl: 'https://js.devexpress.com/Demos/Mvc/api/file-manager-db' }); const allowedFileExtensions = []; class App extends React.Component { customizeDetailColumns(columns) { var fileSizeColumn = columns.filter(function(c) { return c.dataField === 'fileSize'; })[0]; columns.splice(columns.indexOf(fileSizeColumn), 1); var modifiedColumn = columns.filter(function(c) { return c.dataField === 'dateModified'; })[0]; modifiedColumn.caption = 'Modified'; columns.push({ caption: 'Created', dataField: 'created', dataType: 'date' }); columns.push({ visibleIndex: 2, caption: 'Modified By', dataField: 'modifiedBy' }); return columns; } render() { return ( <FileManager currentPath="Documents/Reports" fileProvider={remoteFileProvider} allowedFileExtensions={allowedFileExtensions} customizeDetailColumns={this.customizeDetailColumns}> <Permissions create={true} copy={true} move={true} remove={true} rename={true}> </Permissions> </FileManager> ); } } export default App;
    import React from 'react'; import ReactDOM from 'react-dom'; import App from './App.js'; ReactDOM.render( <App />, document.getElementById('app') );
    <!DOCTYPE html> <html> <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" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/19.2.4/css/dx.common.css" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/19.2.4/css/dx.light.css" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/19.2.4/css/dx-gantt.min.css" /> <script src="https://unpkg.com/core-js@2.4.1/client/shim.min.js"></script> <script src="https://unpkg.com/systemjs@0.21.3/dist/system.js"></script> <script type="text/javascript" src="config.js"></script> <script type="text/javascript"> System.import('./index.js'); </script> <link rel="stylesheet" type="text/css" href="styles.css" /> </head> <body class="dx-viewport"> <div class="demo-container"> <div id="app"></div> </div> </body> </html>
    System.config({ transpiler: 'plugin-babel', paths: { 'npm:': 'https://unpkg.com/' }, defaultExtension: 'js', map: { 'react': 'npm:react@16/umd/react.development.js', 'react-dom': 'npm:react-dom@16/umd/react-dom.development.js', 'prop-types': 'npm:prop-types/prop-types.js', 'devextreme': 'npm:devextreme@19.2', 'devextreme-react': 'npm:devextreme-react@19.2', 'jszip': 'npm:jszip@3.1.3/dist/jszip.min.js', 'quill': 'npm:quill@1.3.7/dist/quill.js', 'devexpress-diagram': 'npm:devexpress-diagram', 'devexpress-gantt': 'npm:devexpress-gantt', // SystemJS plugins 'plugin-babel': 'npm:systemjs-plugin-babel@0/plugin-babel.js', 'systemjs-babel-build': 'npm:systemjs-plugin-babel@0/systemjs-babel-browser.js' }, packages: { 'devextreme': { defaultExtension: 'js' }, 'devextreme-react': { main: 'index.js' } }, babelOptions: { sourceMaps: false, stage0: true, react: true } });