Add remove panels in React Dashboard layout component
26 Dec 202424 minutes to read
In real-time scenarios, the data presented within the dashboard should be updated frequently, which includes dynamically adding or removing data within the dashboard. This can be easily achieved using the addPanel and removePanel public methods of the component.
Add or remove panels dynamically
Panels can be added dynamically using the addPanel public method by passing the panel property as a parameter. Also, they can be removed dynamically using the removePanel public method by passing the panel id value as a parameter.
It is also possible to remove all the panels in a Dashboard Layout by calling the removeAll method.
dashboard.removeAll();The following sample demonstrates how to add and remove the panels dynamically in the dashboard layout component. Here, panels can be added in any desired position with the required size by selecting them in the numeric boxes and clicking the add button. They can be removed by selecting the ID of the panel.
import { DropDownListComponent } from '@syncfusion/ej2-react-dropdowns';
import { NumericTextBoxComponent } from '@syncfusion/ej2-react-inputs';
import { DashboardLayoutComponent } from '@syncfusion/ej2-react-layouts';
import * as React from 'react';
function App() {
let count = 7;
let cellSpacing = [10, 10];
let resize = ['e-south-east', 'e-east', 'e-west', 'e-north', 'e-south'];
let panels = [
{ 'id': 'Panel0', 'sizeX': 1, 'sizeY': 1, 'row': 0, 'col': 0, content: '<div class="content">0</div>' },
{ 'id': 'Panel1', 'sizeX': 3, 'sizeY': 2, 'row': 0, 'col': 1, content: '<div class="content">1</div>' },
{ 'id': 'Panel2', 'sizeX': 1, 'sizeY': 3, 'row': 0, 'col': 4, content: '<div class="content">2</div>' },
{ 'id': 'Panel3', 'sizeX': 1, 'sizeY': 1, 'row': 1, 'col': 0, content: '<div class="content">3</div>' },
{ 'id': 'Panel4', 'sizeX': 2, 'sizeY': 1, 'row': 2, 'col': 0, content: '<div class="content">4</div>' },
{ 'id': 'Panel5', 'sizeX': 1, 'sizeY': 1, 'row': 2, 'col': 2, content: '<div class="content">5</div>' },
{ 'id': 'Panel6', 'sizeX': 1, 'sizeY': 1, 'row': 2, 'col': 3, content: '<div class="content">6</div>' }
];
let data = ["Panel0", "Panel1", "Panel2", "Panel3", "Panel4", "Panel5", "Panel6"];
let dashboardObj;
let sizeXObj;
let sizeYObj;
let rowObj;
let colsObj;
let paneObj;
// Adding new panels for DashboardLayout
function onAdd(args) {
//let proxy = this;
let panel = [{
'id': count.toString() + '_layout', 'sizeX': sizeXObj.value, 'sizeY': sizeYObj.value, 'row': rowObj.value, 'col': colsObj.value,
content: '<div class="content">' + count.toString() + '</div>'
}];
dashboardObj.addPanel(panel[0]);
count = count + 1;
}
// Removeing selected panels for DashboardLayout
function onRemove(args) {
dashboardObj.removePanel(paneObj.value.toString());
}
return (<div id='container'>
<div className="inline" id="control">
<DashboardLayoutComponent id='dashboard_layout' ref={s => (dashboardObj = s)} cellSpacing={cellSpacing} panels={panels} allowResizing={true} columns={5} resizableHandles={resize}/>
</div>
<div className="inline" id="properties">
<table>
<tbody>
<tr>
<td>SizeX</td>
<td> <NumericTextBoxComponent ref={s => (sizeXObj = s)} className="col-sm-4" placeholder={"Ex: 10"} value={1} min={1} max={5} floatLabelType="Never" id="sizeX"/></td>
</tr>
<tr>
<td>SizeY</td>
<td> <NumericTextBoxComponent ref={s => (sizeYObj = s)} className="col-sm-4" placeholder={"Ex: 10"} value={1} min={1} max={5} floatLabelType="Never" id="sizeY"/></td>
</tr>
<tr>
<td>Row</td>
<td> <NumericTextBoxComponent ref={s => (rowObj = s)} className="col-sm-4" placeholder={"Ex: 10"} value={0} min={0} max={5} floatLabelType="Never" id="row"/></td>
</tr>
<tr>
<td>Column</td>
<td> <NumericTextBoxComponent ref={s => (colsObj = s)} className="col-sm-4" placeholder={"Ex: 10"} value={0} min={0} max={4} floatLabelType="Never" id="column"/></td>
</tr>
<tr>
<td />
<td>
<button onClick={onAdd}>Add Panel</button>
</td>
</tr>
</tbody>
</table>
<table>
<tbody>
<tr>
<td>Id</td>
<td> <DropDownListComponent ref={s => (paneObj = s)} className="col-sm-4" placeholder={"panel id"} dataSource={data} floatLabelType="Never" id="panel_id"/></td>
</tr>
<tr>
<td />
<td>
<button onClick={onRemove}>Remove Panel</button>
</td>
</tr>
</tbody>
</table>
</div>
</div>);
}
export default App;import { DropDownListComponent } from '@syncfusion/ej2-react-dropdowns';
import { NumericTextBoxComponent } from '@syncfusion/ej2-react-inputs';
import { DashboardLayoutComponent } from '@syncfusion/ej2-react-layouts';
import * as React from 'react';
function App() {
let count = 7;
let cellSpacing = [10, 10];
let resize = ['e-south-east', 'e-east', 'e-west', 'e-north', 'e-south'];
let panels = [
{ 'id': 'Panel0', 'sizeX': 1, 'sizeY': 1, 'row': 0, 'col': 0, content: '<div class="content">0</div>' },
{ 'id': 'Panel1', 'sizeX': 3, 'sizeY': 2, 'row': 0, 'col': 1, content: '<div class="content">1</div>' },
{ 'id': 'Panel2', 'sizeX': 1, 'sizeY': 3, 'row': 0, 'col': 4, content: '<div class="content">2</div>' },
{ 'id': 'Panel3', 'sizeX': 1, 'sizeY': 1, 'row': 1, 'col': 0, content: '<div class="content">3</div>' },
{ 'id': 'Panel4', 'sizeX': 2, 'sizeY': 1, 'row': 2, 'col': 0, content: '<div class="content">4</div>' },
{ 'id': 'Panel5', 'sizeX': 1, 'sizeY': 1, 'row': 2, 'col': 2, content: '<div class="content">5</div>' },
{ 'id': 'Panel6', 'sizeX': 1, 'sizeY': 1, 'row': 2, 'col': 3, content: '<div class="content">6</div>' }
];
let data = ["Panel0", "Panel1", "Panel2", "Panel3", "Panel4", "Panel5", "Panel6"];
let dashboardObj:DashboardLayoutComponent;
let sizeXObj:NumericTextBoxComponent;
let sizeYObj:NumericTextBoxComponent;
let rowObj:NumericTextBoxComponent;
let colsObj:NumericTextBoxComponent;
let paneObj:DropDownListComponent;
// Adding new panels for DashboardLayout
function onAdd() {
//let proxy = this;
let panel = [{
'id': count.toString() + '_layout', 'sizeX': sizeXObj.value, 'sizeY': sizeYObj.value, 'row': rowObj.value, 'col': colsObj.value,
content: '<div class="content">' + count.toString() + '</div>'
}];
(dashboardObj as any).addPanel(panel[0]);
count = count + 1;
}
// Removeing selected panels for DashboardLayout
function onRemove() {
if (paneObj.value) {
(dashboardObj as any).removePanel(paneObj.value.toString());
}
}
return (<div id='container'>
<div className="inline" id="control">
<DashboardLayoutComponent id='dashboard_layout' ref={s => (dashboardObj = s)} cellSpacing={cellSpacing} panels={panels} allowResizing={true} columns={5} resizableHandles={resize}/>
</div>
<div className="inline" id="properties">
<table>
<tbody>
<tr>
<td>SizeX</td>
<td> <NumericTextBoxComponent ref={s => (sizeXObj = s)} className="col-sm-4" placeholder={"Ex: 10"} value={1} min={1} max={5} floatLabelType="Never" id="sizeX"/></td>
</tr>
<tr>
<td>SizeY</td>
<td> <NumericTextBoxComponent ref={s => (sizeYObj = s)} className="col-sm-4" placeholder={"Ex: 10"} value={1} min={1} max={5} floatLabelType="Never" id="sizeY"/></td>
</tr>
<tr>
<td>Row</td>
<td> <NumericTextBoxComponent ref={s => (rowObj = s)} className="col-sm-4" placeholder={"Ex: 10"} value={0} min={0} max={5} floatLabelType="Never" id="row"/></td>
</tr>
<tr>
<td>Column</td>
<td> <NumericTextBoxComponent ref={s => (colsObj = s)} className="col-sm-4" placeholder={"Ex: 10"} value={0} min={0} max={4} floatLabelType="Never" id="column"/></td>
</tr>
<tr>
<td />
<td>
<button onClick={onAdd}>Add Panel</button>
</td>
</tr>
</tbody>
</table>
<table>
<tbody>
<tr>
<td>Id</td>
<td> <DropDownListComponent ref={s => (paneObj = s)} className="col-sm-4" placeholder={"panel id"} dataSource={data} floatLabelType="Never" id="panel_id"/></td>
</tr>
<tr>
<td />
<td>
<button onClick={onRemove}>Remove Panel</button>
</td>
</tr>
</tbody>
</table>
</div>
</div>);
}
export default App;import * as React from 'react';
import * as ReactDOM from 'react-dom';
import App from './App';
ReactDOM.render(<App />, document.getElementById('root'));import * as React from 'react';
import * as ReactDOM from 'react-dom';
import App from './App';
ReactDOM.render(<App />, document.getElementById('root'));@import "../node_modules/@syncfusion/ej2-base/styles/material.css";
@import "../node_modules/@syncfusion/ej2-react-dropdowns/styles/material.css";
@import "../node_modules/@syncfusion/ej2-react-inputs/styles/material.css";
@import "../node_modules/@syncfusion/ej2-react-buttons/styles/material.css";
@import "../node_modules/@syncfusion/ej2-react-layouts/styles/material.css";
#container {
margin: 0 auto;
width: 800px;
}
.e-panel-container .content {
vertical-align: middle;
font-weight: 500;
font-size: 20px;
text-align: center;
line-height: 45px;
}
td{
padding: 5px;
}
div#properties {
width: 205px;
margin-left: 15px;
border: 1px solid black;
padding: 15px;
position: absolute;
}
.inline {
display: inline-block;
}
div#control {
width: 500px;
}
#resize {
margin-left: 40%;
}<!DOCTYPE html>
<html lang="en">
<head>
<title>Syncfusion EJ2 React Dashboard Layout Sample</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="https://cdn.syncfusion.com/ej2/28.1.33/ej2-base/styles/material.css" rel="stylesheet" />
<link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-buttons/styles/material.css" rel="stylesheet" />
<link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-popups/styles/material.css" rel="stylesheet" />
<link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-splitbuttons/styles/material.css" rel="stylesheet" />
<link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-react-layouts/styles/material.css" rel="stylesheet" />
<link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-react-dropdowns/styles/material.css" rel="stylesheet" />
<link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-react-inputs/styles/material.css" rel="stylesheet" />
<link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-react-buttons/styles/material.css" rel="stylesheet" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
<script src="systemjs.config.js"></script>
<link rel="stylesheet" href="App.css">
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>
<body>
<div id='root'>
<div id='loader'>Loading....</div>
</div>
</body>
</html>You can refer to our React Dashboard Layout feature tour page for its groundbreaking feature representations. You can also explore our React Dashboard Layout example to learn how to present and manipulate data.