Chunk Uploading
This demo shows how to upload files in chunks. The chunkSize property specifies their size (in this case, 0.2MB). You should ensure the server can process chunks. See an example of the server implementation under the FileUploaderController tab in the ASP.NET MVC version of this demo.
Feel free to share demo-related thoughts here.
If you have technical questions, please create a support ticket in the DevExpress Support Center.
If you have technical questions, please create a support ticket in the DevExpress Support Center.
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<template>
<div>
<DxFileUploader
:chunk-size="200000"
name="file"
accept="image/*"
upload-url="https://js.devexpress.com/Demos/WidgetsGalleryDataService/api/ChunkUpload"
@upload-started="() => chunks = []"
@progress="onUploadProgress($event)"
/>
<span class="note">Allowed file extensions: <span>.jpg, .jpeg, .gif, .png</span>.</span>
<span class="note">Maximum file size: <span>4 MB.</span></span>
<div class="chunk-panel">
<div
v-for="(chunk, index) in chunks"
:key="index"
>
<span>Chunk size:</span>
<span
class="segment-size dx-theme-accent-as-text-color"
>{{ getValueInKb(chunk.segmentSize) }}</span>
<span>, Uploaded:'</span>
<span
class="loaded-size dx-theme-accent-as-text-color"
>{{ getValueInKb(chunk.bytesLoaded) }}</span>
<span>/</span>
<span
class="total-size dx-theme-accent-as-text-color"
>{{ getValueInKb(chunk.bytesTotal) }}</span>
</div>
</div>
</div>
</template>
<script>
import DxFileUploader from 'devextreme-vue/file-uploader';
export default {
components: {
DxFileUploader,
},
data() {
return {
chunks: [],
};
},
methods: {
getValueInKb(value) {
return `${(value / 1024).toFixed(0)}kb`;
},
onUploadProgress(e) {
this.chunks.push({
segmentSize: e.segmentSize,
bytesLoaded: e.bytesLoaded,
bytesTotal: e.bytesTotal,
});
},
},
};
</script>
<style>
.chunk-panel {
width: 505px;
height: 165px;
overflow-y: auto;
padding: 18px;
margin-top: 40px;
background-color: rgba(191, 191, 191, 0.15);
}
.segment-size,
.loaded-size {
margin-left: 3px;
}
.note {
display: block;
font-size: 10pt;
color: #484848;
margin-left: 9px;
}
.note > span {
font-weight: 700;
}
</style>
import { createApp } from 'vue';
import App from './App.vue';
createApp(App).mount('#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/21.2.3/css/dx.common.css" />
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/21.2.3/css/dx.light.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>
window.config = {
transpiler: 'plugin-babel',
meta: {
'*.vue': {
loader: 'vue-loader',
},
'devextreme/localization.js': {
'esModule': true,
},
},
paths: {
'npm:': 'https://unpkg.com/',
},
map: {
'vue': 'npm:vue@3.0.0/dist/vue.esm-browser.js',
'vue-loader': 'npm:dx-systemjs-vue-browser@1.0.15/index.js',
'mitt': 'npm:mitt/dist/mitt.umd.js',
'rrule': 'npm:rrule@2.6.6/dist/es5/rrule.js',
'luxon': 'npm:luxon@1.28.0/build/global/luxon.min.js',
'es6-object-assign': 'npm:es6-object-assign@1.1.0',
'devextreme': 'npm:devextreme@21.2.3/cjs',
'devextreme-vue': 'npm:devextreme-vue@21.2.3',
'jszip': 'npm:jszip@3.7.1/dist/jszip.min.js',
'devextreme-quill': 'npm:devextreme-quill@1.5.5/dist/dx-quill.min.js',
'devexpress-diagram': 'npm:devexpress-diagram@2.1.37/dist/dx-diagram.js',
'devexpress-gantt': 'npm:devexpress-gantt@3.1.24/dist/dx-gantt.js',
'@devextreme/vdom': 'npm:@devextreme/vdom@2.2.3',
'@devextreme/runtime': 'npm:@devextreme/runtime@2.3.8',
'inferno': 'npm:inferno@7.4.10/dist/inferno.min.js',
'inferno-compat': 'npm:inferno-compat@7.4.10/dist/inferno-compat.min.js',
'inferno-create-element': 'npm:inferno-create-element@7.4.10/dist/inferno-create-element.min.js',
'inferno-dom': 'npm:inferno-dom@1.0.7/dist/inferno-dom.min.js',
'inferno-hydrate': 'npm:inferno-hydrate@7.4.10/dist/inferno-hydrate.min.js',
'inferno-clone-vnode': 'npm:inferno-clone-vnode@7.4.10/dist/inferno-clone-vnode.min.js',
'inferno-create-class': 'npm:inferno-create-class@7.4.10/dist/inferno-create-class.min.js',
'inferno-extras': 'npm:inferno-extras@7.4.10/dist/inferno-extras.min.js',
'plugin-babel': 'npm:systemjs-plugin-babel@0.0.25/plugin-babel.js',
'systemjs-babel-build': 'npm:systemjs-plugin-babel@0.0.25/systemjs-babel-browser.js',
},
packages: {
'devextreme-vue': {
main: 'index.js',
},
'devextreme': {
defaultExtension: 'js',
},
'@devextreme/vdom': {
defaultExtension: 'js',
},
'devextreme/events/utils': {
main: 'index',
},
'devextreme/events': {
main: 'index',
},
'es6-object-assign': {
main: './index.js',
defaultExtension: 'js',
},
},
packageConfigPaths: [
'npm:@devextreme/*/package.json',
'npm:@devextreme/runtime@2.3.8/inferno/package.json',
],
babelOptions: {
sourceMaps: false,
stage0: true,
},
};
System.config(window.config);