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Drag and Drop

Drag and Drop is supported through two libraries. Those are Draggable and Droppable. Draggable makes DOM to be dragged using mouse or touch gestures and Droppable mark required DOM as droppable zone.

Initializing draggable

You can make any element draggable by passing the element to Draggable constructor. Refer the following code snippet to enable draggable for the DOM element

Source
Preview
index.jsx
index.tsx
index.html
import * as React from 'react';
import * as ReactDom from 'react-dom';
import { Draggable } from '@syncfusion/ej2-base';
class App extends React.Component {
    componentDidMount() {
        let draggable = new Draggable(document.getElementById('element'), { clone: false });
    }
    render() {
        return (<div id='container'>
          <div id='element'><p>Draggable Element</p></div>
          </div>);
    }
}
ReactDom.render(<App />, document.getElementById('sample'));
import * as React from 'react';
import * as ReactDom from 'react-dom';
import { Draggable } from '@syncfusion/ej2-base';

class App extends React.Component<{}, {}> {
    public componentDidMount(): void {
        let draggable:Draggable = new Draggable(document.getElementById('element'),{clone: false});
        }

  render() {
      return (
          <div id='container'>
          <div id='element'><p>Draggable Element</p></div>
          </div>
      );
  }
}
ReactDom.render(<App />, document.getElementById('sample'));
<!DOCTYPE html>
<html lang="en">

<head>
    <title>Syncfusion React Button</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Essential JS 2 for React Components" />
    <meta name="author" content="Syncfusion" />
    <link href="index.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-react-buttons/styles/material.css" rel="stylesheet" />
    <link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>

<body>
        <div id='sample'>
            <div id='loader'>Loading....</div>
        </div>
</body>

</html>

Creating droppable zone

You can convert any DOM element as a droppable zone, which accepts the draggable elements. Refer the following code snippet to enable droppable zone.

Source
Preview
index.jsx
index.tsx
index.html
import * as React from 'react';
import * as ReactDom from 'react-dom';
import { Droppable } from '@syncfusion/ej2-base';
class App extends React.Component {
    componentDidMount() {
        let droppable = new Droppable(document.getElementById('droppable'));
    }
    render() {
        return (<div id='container'>
          <div id='droppable'><p>Droppable Element</p></div>
          </div>);
    }
}
ReactDom.render(<App />, document.getElementById('sample'));
import * as React from 'react';
import * as ReactDom from 'react-dom';
import { Droppable } from '@syncfusion/ej2-base';

class App extends React.Component<{}, {}> {
    public componentDidMount(): void {
        let droppable: Droppable = new Droppable(document.getElementById('droppable'));
    }

  render() {
      return (
          <div id='container'>
          <div id='droppable'><p>Droppable Element</p></div>
          </div>
      );
  }
}
ReactDom.render(<App />, document.getElementById('sample'));
<!DOCTYPE html>
<html lang="en">

<head>
    <title>Syncfusion React Button</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Essential JS 2 for React Components" />
    <meta name="author" content="Syncfusion" />
    <link href="index.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-react-buttons/styles/material.css" rel="stylesheet" />
    <link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>

<body>
        <div id='sample'>
            <div id='loader'>Loading....</div>
        </div>
</body>

</html>

Defining Drop Action

To define a drop action set drop callback function during droppable object creation. You can get details of dropped element through dropped element property in event argument. Refer the following code snippet to use basic drag and drop action

Source
Preview
index.jsx
index.tsx
index.html
import * as React from 'react';
import * as ReactDom from 'react-dom';
import { Draggable, Droppable } from '@syncfusion/ej2-base';
class App extends React.Component {
    componentDidMount() {
        let draggable = new Draggable(document.getElementById('draggable'), { clone: false });
        let droppable = new Droppable(document.getElementById('droppable'), {
            drop: (e) => {
                e.droppedElement.querySelector('#drag').textContent = 'Dropped';
            }
        });
    }
    render() {
        return (<div id='container'>
           <div id='droppable'><p>Droppable Target </p></div>
           <div id='draggable'><p id='drag'>Draggable Element </p></div>
          </div>);
    }
}
ReactDom.render(<App />, document.getElementById('sample'));
import * as React from 'react';
import * as ReactDom from 'react-dom';
import { Draggable, Droppable, DropEventArgs } from '@syncfusion/ej2-base';

class App extends React.Component<{}, {}> {
    public componentDidMount(): void {
        let draggable:Draggable = new Draggable(document.getElementById('draggable'),{clone: false});
        let droppable: Droppable = new Droppable(document.getElementById('droppable'), {
            drop: (e: DropEventArgs) => {
                e.droppedElement.querySelector('#drag').textContent = 'Dropped';
            }
        });
    }

  render() {
      return (
          <div id='container'>
           <div id='droppable'><p>Droppable Target </p></div>
           <div id='draggable'><p id='drag'>Draggable Element </p></div>
          </div>
      );
  }
}
ReactDom.render(<App />, document.getElementById('sample'));
<!DOCTYPE html>
<html lang="en">

<head>
    <title>Syncfusion React Button</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Essential JS 2 for React Components" />
    <meta name="author" content="Syncfusion" />
    <link href="index.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-react-buttons/styles/material.css" rel="stylesheet" />
    <link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>

<body>
        <div id='sample'>
            <div id='loader'>Loading....</div>
        </div>
</body>

</html>
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