How to use drag and drop ui in JavaScript?
EJ2 Drag and Drop UI libraries
This documentation explains how to use Drag and Drop UI libraries in JavaScript.
Essential JS 2 Drag and Drop UI libraries
Drag and Drop is supported through two library modules: Draggable and Droppable. Draggable module makes DOM to be dragged using mouse or by touch gestures, and Droppable module mark requires DOM as droppable zone.
Installing
You can get both the Drag and Drop Essential JS 2 UI Library modules from a single npm package named “@syncfusion/ej2-base”.
https://www.npmjs.com/package/@syncfusion/ej2-base
You can run the following command to install.
npm install @syncfusion/ej2-base
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Initializing draggable
You can make any element draggable by passing the element to Draggable constructor. Refer to the following code snippet to enable draggable for DOM element.
import {Draggable} from '@syncfusion/ej2-base';
let dragElement: HTMLElement = document.getElementById('element1');
let draggable:Draggable = new Draggable(dragElement,{clone: false});
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Creating droppable zone
You can convert any DOM element as a droppable zone, which accepts the draggable elements. Refer to the following code snippet to enable droppable zone.
import { Droppable} from '@syncfusion/ej2-base';
let droppable: Droppable = new Droppable(document.getElementById('droppable'));
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Defining drop action
To define the drop action, set drop callback function during droppable object creation. You can get details of dropped element using the dropped element property in event argument. Refer to the following code snippet to use basic Drag and Drop action.
import { Draggable, Droppable, DropEventArgs } from '@syncfusion/ej2-base';
let draggable: Draggable = new Draggable(document.getElementById('element1'), {
clone: false
});
let droppable: Droppable = new Droppable(document.getElementById('droppable'), {
drop: (e: DropEventArgs) => {
e.droppedElement.querySelector('.drag-text').textContent = 'Dropped';
}
});
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Sample:
https://github.com/SyncfusionExamples/EJ2-Drag-and-Drop-UI-libraries
Resources
You can also refer to the following resources to learn more details about Essential JS 2 components.
- https://ej2.syncfusion.com/demos/#/material/grid/drag-and-drop.html
- https://ej2.syncfusion.com/documentation/common/drag-and-drop/
Conclusion
I hope you enjoyed learning about how to use drag and drop ui in JavaScript.
You can refer to our JavaScript feature tour page to know about its other groundbreaking feature representations and documentation, and how to quickly get started for configuration specifications. You can also explore our JavaScript example to understand how to create and manipulate data.
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