Custom Drop Zone
The FileUploader component supports the drag-and-drop functionality to upload files.
In this demo, the dropZone property specifies the HTML element in which you can drag and drop files for upload. The dropZoneEnter and dropZoneLeave events allow you to customize the drop zone when the mouse pointer enters and leaves this zone while dragging the file.
NOTE
Allowed file extensions: .jpg, .jpeg, .gif, .png
Maximum file size: 4 MB
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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We appreciate your feedback.
We appreciate your feedback.
<div class="widget-container flex-box">
<span>Profile Picture</span>
<div
id="dropzone-external"
class="flex-box"
[ngClass]="
isDropZoneActive
? ['dx-theme-accent-as-border-color', 'dropzone-active']
: ['dx-theme-border-color']
"
>
<img id="dropzone-image" [src]="imageSource" *ngIf="imageSource" alt="" />
<div id="dropzone-text" class="flex-box" *ngIf="textVisible">
<span>Drag & Drop the desired file</span>
<span>…or click to browse for a file instead.</span>
</div>
<dx-progress-bar
#uploadProgress
[min]="0"
[max]="100"
width="30%"
[showStatus]="false"
[visible]="progressVisible"
[value]="progressValue"
></dx-progress-bar>
</div>
<dx-file-uploader
#fileUploader
dialogTrigger="#dropzone-external"
dropZone="#dropzone-external"
[multiple]="false"
[allowedFileExtensions]="['.jpg', '.jpeg', '.gif', '.png']"
uploadMode="instantly"
uploadUrl="https://js.devexpress.com/Demos/NetCore/FileUploader/Upload"
[visible]="false"
(onDropZoneEnter)="onDropZoneEnter($event)"
(onDropZoneLeave)="onDropZoneLeave($event)"
(onUploaded)="onUploaded($event)"
(onProgress)="onProgress($event)"
(onUploadStarted)="onUploadStarted($event)"
></dx-file-uploader>
</div>
import { NgModule, Component, enableProdMode } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { DxFileUploaderModule, DxProgressBarModule } from 'devextreme-angular';
if (!/localhost/.test(document.location.host)) {
enableProdMode();
}
@Component({
selector: 'demo-app',
templateUrl: 'app/app.component.html',
styleUrls: ['app/app.component.css'],
})
export class AppComponent {
isDropZoneActive = false;
imageSource = '';
textVisible = true;
progressVisible = false;
progressValue = 0;
constructor() {
this.onDropZoneEnter = this.onDropZoneEnter.bind(this);
this.onDropZoneLeave = this.onDropZoneLeave.bind(this);
this.onUploaded = this.onUploaded.bind(this);
this.onProgress = this.onProgress.bind(this);
this.onUploadStarted = this.onUploadStarted.bind(this);
}
onDropZoneEnter(e) {
if (e.dropZoneElement.id === 'dropzone-external') { this.isDropZoneActive = true; }
}
onDropZoneLeave(e) {
if (e.dropZoneElement.id === 'dropzone-external') { this.isDropZoneActive = false; }
}
onUploaded(e) {
const file = e.file;
const fileReader = new FileReader();
fileReader.onload = () => {
this.isDropZoneActive = false;
this.imageSource = fileReader.result as string;
};
fileReader.readAsDataURL(file);
this.textVisible = false;
this.progressVisible = false;
this.progressValue = 0;
}
onProgress(e) {
this.progressValue = e.bytesLoaded / e.bytesTotal * 100;
}
onUploadStarted() {
this.imageSource = '';
this.progressVisible = true;
}
}
@NgModule({
imports: [
BrowserModule,
DxFileUploaderModule,
DxProgressBarModule,
],
declarations: [AppComponent],
bootstrap: [AppComponent],
})
export class AppModule { }
platformBrowserDynamic().bootstrapModule(AppModule);
::ng-deep #dropzone-external {
width: 350px;
height: 350px;
background-color: rgba(183, 183, 183, 0.1);
border-width: 2px;
border-style: dashed;
padding: 10px;
}
::ng-deep #dropzone-external > * {
pointer-events: none;
}
::ng-deep #dropzone-external.dropzone-active {
border-style: solid;
}
::ng-deep .widget-container > span {
font-size: 22px;
font-weight: bold;
margin-bottom: 16px;
}
::ng-deep #dropzone-image {
max-width: 100%;
max-height: 100%;
}
::ng-deep #dropzone-text > span {
font-weight: 100;
opacity: 0.5;
}
::ng-deep #upload-progress {
display: flex;
margin-top: 10px;
}
::ng-deep .flex-box {
display: flex;
flex-direction: column;
justify-content: center;
align-items: center;
}
// In real applications, you should not transpile code in the browser.
// You can see how to create your own application with Angular and DevExtreme here:
// https://js.devexpress.com/Documentation/Guide/Angular_Components/Getting_Started/Create_a_DevExtreme_Application/
window.config = {
transpiler: 'ts',
typescriptOptions: {
module: 'system',
emitDecoratorMetadata: true,
experimentalDecorators: true,
},
meta: {
'typescript': {
'exports': 'ts',
},
'devextreme/localization.js': {
'esModule': true,
},
},
paths: {
'npm:': 'https://unpkg.com/',
},
map: {
'ts': 'npm:plugin-typescript@4.2.4/lib/plugin.js',
'typescript': 'npm:typescript@4.2.4/lib/typescript.js',
'@angular/core': 'npm:@angular/core@12.2.17',
'@angular/platform-browser': 'npm:@angular/platform-browser@12.2.17',
'@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic@12.2.17',
'@angular/forms': 'npm:@angular/forms@12.2.17',
'@angular/common': 'npm:@angular/common@12.2.17',
'@angular/compiler': 'npm:@angular/compiler@12.2.17',
'tslib': 'npm:tslib@2.3.1/tslib.js',
'rxjs': 'npm:rxjs@7.5.3/dist/bundles/rxjs.umd.js',
'rxjs/operators': 'npm:rxjs@7.5.3/dist/cjs/operators/index.js',
'rrule': 'npm:rrule@2.6.4/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@22.2.6/cjs',
'devextreme/bundles/dx.all': 'npm:devextreme@22.2.6/bundles/dx.all.js',
'jszip': 'npm:jszip@3.7.1/dist/jszip.min.js',
'devextreme-quill': 'npm:devextreme-quill@1.5.20/dist/dx-quill.min.js',
'devexpress-diagram': 'npm:devexpress-diagram@2.1.72',
'devexpress-gantt': 'npm:devexpress-gantt@4.1.43',
'devextreme-angular': 'npm:devextreme-angular@22.2.6',
'@devextreme/runtime': 'npm:@devextreme/runtime@3.0.11',
'inferno': 'npm:inferno@7.4.11/dist/inferno.min.js',
'inferno-compat': 'npm:inferno-compat/dist/inferno-compat.min.js',
'inferno-create-element': 'npm:inferno-create-element@7.4.11/dist/inferno-create-element.min.js',
'inferno-dom': 'npm:inferno-dom/dist/inferno-dom.min.js',
'inferno-hydrate': 'npm:inferno-hydrate@7.4.11/dist/inferno-hydrate.min.js',
'inferno-clone-vnode': 'npm:inferno-clone-vnode/dist/inferno-clone-vnode.min.js',
'inferno-create-class': 'npm:inferno-create-class/dist/inferno-create-class.min.js',
'inferno-extras': 'npm:inferno-extras/dist/inferno-extras.min.js',
// Prettier
'prettier/standalone': 'npm:prettier@2.8.4/standalone.js',
'prettier/parser-html': 'npm:prettier@2.8.4/parser-html.js',
},
packages: {
'app': {
main: './app.component.ts',
defaultExtension: 'ts',
},
'devextreme': {
defaultExtension: 'js',
},
'devextreme/events/utils': {
main: 'index',
},
'devextreme/events': {
main: 'index',
},
'es6-object-assign': {
main: './index.js',
defaultExtension: 'js',
},
'rxjs': {
defaultExtension: 'js',
},
'rxjs/operators': {
defaultExtension: 'js',
},
},
packageConfigPaths: [
'npm:@devextreme/*/package.json',
'npm:@devextreme/runtime@3.0.11/inferno/package.json',
'npm:@angular/*/package.json',
'npm:@angular/common@12.2.17/*/package.json',
'npm:rxjs@7.5.3/package.json',
'npm:rxjs@7.5.3/operators/package.json',
'npm:devextreme-angular@22.2.6/*/package.json',
'npm:devextreme-angular@22.2.6/ui/*/package.json',
'npm:devextreme-angular@22.2.6/package.json',
'npm:devexpress-diagram@2.1.72/package.json',
'npm:devexpress-gantt@4.1.43/package.json',
],
};
System.config(window.config);
<!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" />
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/22.2.6/css/dx.light.css" />
<script src="https://unpkg.com/core-js@2.6.12/client/shim.min.js"></script>
<script src="https://unpkg.com/zone.js@0.13.0/dist/zone.js"></script>
<script src="https://unpkg.com/reflect-metadata@0.1.13/Reflect.js"></script>
<script src="https://unpkg.com/systemjs@0.21.3/dist/system.js"></script>
<script src="config.js"></script>
<script>
System.import("app").catch(console.error.bind(console));
</script>
</head>
<body class="dx-viewport">
<div class="demo-container">
<demo-app>Loading...</demo-app>
</div>
</body>
</html>