File Selection
The FileUploader widget allows an end user to upload files to the server. This demo illustrates the use of the FileUploader within a web page. To select a file using the Open file dialog, click the Select photo button. Note that the Open file dialog only accepts image file types as the accept configuration option of the FileUploader is set to «image/*».
To see an example of server-side implementation, refer to the HTML Form Upload article for ASP.NET or PHP.
NOTE: This demo does not actually upload the selected file. To upload a file, submit the form. The form element should contain the action attribute, which holds the URL of the page providing server scenarios for saving uploaded files.
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import React from 'react';
import { FileUploader, Button, TextBox } from 'devextreme-react';
import notify from 'devextreme/ui/notify';
class App extends React.Component {
constructor(props) {
super(props);
this.onClick = this.onClick.bind(this);
this.formElement = React.createRef();
}
onClick() {
notify('Uncomment the line to enable sending a form to the server.');
//this.formElement.current.submit();
}
render() {
return (
<form id={'form'} ref={this.formElement} method={'post'} action={''} encType={'multipart/form-data'}>
<h3>Profile Settings</h3>
<div className={'dx-fieldset'}>
<div className={'dx-field'}>
<div className={'dx-field-label'}>First Name:</div>
<TextBox name={'FirstName'} value={'John'} className={'dx-field-value'} />
</div>
<div className={'dx-field'}>
<div className={'dx-field-label'}>Last Name:</div>
<TextBox name={'LastName'} value={'Smith'} className={'dx-field-value'} />
</div>
</div>
<div className={'fileuploader-container'}>
<FileUploader selectButtonText={'Select photo'} labelText={''} accept={'image/*'} uploadMode={'useForm'} />
</div>
<Button className={'button'} text={'Update profile'} type={'success'} onClick={this.onClick} />
</form>
);
}
}
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/19.1.4/css/dx.common.css" />
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/19.1.4/css/dx.light.css" />
<link rel="stylesheet" type="text/css" href="styles.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>
</head>
<body class="dx-viewport">
<div class="demo-container">
<div id="app"></div>
</div>
</body>
</html>
#form {
max-width: 600px;
margin: auto;
}
.button {
margin-top: 50px;
margin-right: 20px;
float: right;
}
.fileuploader-container{
border: 1px solid #d3d3d3;
margin: 20px 20px 0 20px;
}
#form h3 {
margin-left: 20px;
font-weight: normal;
font-size: 22px;
}
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@19.1',
'devextreme-react': 'npm:devextreme-react@19.1',
'jszip': 'npm:jszip@3.1.3/dist/jszip.min.js',
'quill': 'npm:quill@1.3.6/dist/quill.js',
'devexpress-diagram': 'npm:devexpress-diagram',
// 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
}
});