How to Customize the grid layout in React Bootstrap?
Last Updated :
02 Aug, 2024
In this article, we will be customizing the grid layout in React Bootstrap. Grid layout is used to align the elements with ting the grid format according to the requirements. In React Bootstrap, we can control the number of columns, spacing, responsiveness, and other properties to create a more attractive User Interface.
Prerequisites
Steps to Create React Application and Installing Bootstrap:
Step 1: Create a React application using the following command:
npx create-react-app grid-custom
Step 2: After creating your project folder(i.e.grid-custom), move to it by using the following command:
cd grid-custom
Step 3: Now install react-bootstrap in your working directory i.e. grid-custom by executing the below command in the VScode terminal:
npm install react-bootstrap
Step 4: Now we need to Add Bootstrap CSS to the index.js file:
import 'bootstrap/dist/css/bootstrap.min.css';
Project Structure
The updated dependecies in package.json will look like :
"dependencies": {
"react": "^18.2.0",
"react-bootstrap": "^2.9.1",
"react-scripts": "5.0.1",
"web-vitals": "^2.1.4"
}Example 1: This example creates a basic Photo Gallery using Grid Structure of React Bootstrap
JavaScript
import React, { useState } from 'react';
import {
Container, Row, Col, Modal,
Button, Dropdown, Form
} from 'react-bootstrap';
const images = [
{
url:
'https://media.geeksforgeeks.org/img-practice/banner/dsa-interview-preparation-classroom-thumbnail.png?v=19658',
category: 'Programming',
},
{
url:
'https://media.geeksforgeeks.org/img-practice/banner/complete-java-backend-development-program-thumbnail.png?v=19658,
category: 'Programming',
},
{
url:
'https://media.geeksforgeeks.org/img-practice/banner/complete-data-analytics-program-thumbnail.png?v=19658',
category: 'Data Analytics',
},
{
url:
'https://media.geeksforgeeks.org/img-practice/banner/mern-full-stack-development-classroom-thumbnail.png?v=19660',
category: 'Web Development',
},
];
const itemsPerPage = 8;
const App = () => {
const [showModal, setShowModal] =
useState(false);
const [selectedImage, setSelectedImage] =
useState('');
const [currentPage, setCurrentPage] =
useState(1);
const [selectedCategory, setSelectedCategory] =
useState('All');
const [gridDirection, setGridDirection] =
useState('horizontal');
const [imageMargin, setImageMargin] =
useState('20px');
const openModal = (image) => {
setSelectedImage(image);
setShowModal(true);
};
const handlePageChange = (page) => {
setCurrentPage(page);
};
const toggleGridDirection = () => {
setGridDirection(gridDirection ===
'horizontal' ?
'vertical' : 'horizontal');
};
const filterImages = () => {
return selectedCategory === 'All'
? images
: images.filter(
(image) =>
image.category === selectedCategory);
};
const paginatedImages = filterImages().slice(
(currentPage - 1) * itemsPerPage,
currentPage * itemsPerPage
);
const gridLayout = {
display: 'grid',
gridTemplateColumns: gridDirection ===
'horizontal' ?
'repeat(auto-fit, minmax(200px, 1fr))' : '1fr',
gap: imageMargin,
};
return (
<Container fluid>
<Row>
<Col xs={12}>
<h1 className="text-success"
style={{ marginTop: '50px' }}>
GeeksforGeeks
</h1>
<h3>Grid Customization - 1</h3>
</Col>
</Row>
<Row>
<Col xs={12} md={6}>
<Dropdown>
<Dropdown.Toggle variant="secondary" block>
Filter by Category: {selectedCategory}
</Dropdown.Toggle>
<Dropdown.Menu>
<Dropdown.Item onClick={() =>
setSelectedCategory('All')}>
All
</Dropdown.Item>
<Dropdown.Item onClick={() =>
setSelectedCategory('Programming')}>
Programming
</Dropdown.Item>
<Dropdown.Item onClick={() =>
setSelectedCategory('Data Analytics')}>
Data Analytics
</Dropdown.Item>
<Dropdown.Item
onClick={() =>
setSelectedCategory('Web Development')}>
Web Development
</Dropdown.Item>
</Dropdown.Menu>
</Dropdown>
</Col>
<Col xs={12} md={6}>
<Button variant="secondary"
onClick={toggleGridDirection} block>
Toggle Grid Direction
</Button>
</Col>
</Row>
<Row>
<Col xs={12} md={4}>
<Form>
<Form.Group>
<Form.Label>Image Margin</Form.Label>
<Form.Control
type="text"
value={imageMargin}
onChange={(e) =>
setImageMargin(e.target.value)}
/>
</Form.Group>
</Form>
</Col>
</Row>
<Row>
<Col xs={12} style={gridLayout}>
{
paginatedImages.map((image, index) => (
<div key={index} className="mb-4">
<div className="photo"
onClick={() => openModal(image.url)}>
<img src={image.url}
alt={`Photo ${index + 1}`}
className="img-fluid" />
<div className="overlay">
<p className="text-white">
Photo {index + 1}
</p>
</div>
</div>
</div>
))}
</Col>
</Row>
<Row>
<Col xs={12}
className="pagination justify-content-center">
{
Array
.from(
{
length: Math
.ceil(filterImages().length / itemsPerPage)
}).map((_, index) => (
<Button
key={index}
variant=
{currentPage ===
index + 1 ?
'success' : 'secondary'}
onClick={() =>
handlePageChange(index + 1)}
>
{index + 1}
</Button>
))}
</Col>
</Row>
<Modal show={showModal}
onHide={() =>
setShowModal(false)} centered>
<Modal.Body>
<img src={selectedImage}
alt="Selected"
className="img-fluid" />
</Modal.Body>
</Modal>
</Container>
);
};
export default App;
Steps to run the application:
Step 1: Run the application using the following command from the root directory of the project:
npm start
Step 2: Now open your browser and go to http://localhost:3000/, you will see the following output
Output:
Example 2: This example creates a customized grid layout using React Bootstrap by providing users with interactive controls to adjust the grid's appearance.
JavaScript
import React, { useState } from 'react';
import {
Container, Row, Col,
ButtonGroup, Button, Form
} from 'react-bootstrap';
const App = () => {
const [numCols, setNumCols] = useState(4);
const [bgColor, setBgColor] = useState('#007bff');
const [borderColor, setBorderColor] = useState('#333');
const [textColor, setTextColor] = useState('#fff');
const handleColChange = (event) => {
setNumCols(parseInt(event.target.value, 10));
};
const handleColorChange = (event, stateSetter) => {
stateSetter(event.target.value);
};
const gridItems =
Array.from(
{ length: numCols * 3 },
(_, index) => index + 1);
const gridCellStyle = {
backgroundColor: bgColor,
border: `2px solid ${borderColor}`,
padding: '20px',
textAlign: 'center',
borderRadius: '5px',
color: textColor,
transition: 'background-color 0.3s, color 0.3s',
};
const handleGridItemHover = (event) => {
event.currentTarget
.style.backgroundColor = '#ff7f50';
};
const handleGridItemLeave = (event) => {
event.currentTarget
.style.backgroundColor = bgColor;
};
return (
<div>
<header style={
{
background: '#fff', padding: '10px',
color: 'green', textAlign: 'center'
}}>
<h1>GeeksforGeeks</h1>
</header>
<h3>
<center>
Grid Layout - 2
</center>
</h3>
<Container>
<Form>
<Form.Group controlId="numCols">
<Form.Label>
Number of Columns
</Form.Label>
<Form.Control type="number"
value={numCols}
onChange={handleColChange} />
</Form.Group>
<Form.Group controlId="bgColor">
<Form.Label>
Background Color
</Form.Label>
<Form.Control type="color"
value={bgColor}
onChange={(e) =>
handleColorChange(e, setBgColor)} />
</Form.Group>
<Form.Group controlId="borderColor">
<Form.Label>
Border Color
</Form.Label>
<Form.Control type="color"
value={borderColor}
onChange={(e) =>
handleColorChange(e, setBorderColor)} />
</Form.Group>
<Form.Group controlId="textColor">
<Form.Label>Text Color</Form.Label>
<Form.Control type="color"
value={textColor}
onChange={(e) =>
handleColorChange(e, setTextColor)} />
</Form.Group>
</Form>
<ButtonGroup>
{[1, 2, 3, 4].map((cols) => (
<Button
key={cols}
variant="primary"
onClick={() => setNumCols(cols)}
active={numCols === cols}>
{cols} Columns
</Button>
))}
</ButtonGroup>
<Row>
{gridItems.map((item) => (
<Col key={item}
xs={12}
md={12 / numCols}>
<div
className="custom-grid-item"
style={gridCellStyle}
onMouseEnter={handleGridItemHover}
onMouseLeave={handleGridItemLeave}>
<h3>
GeeksforGeeks Article {item}
</h3>
</div>
</Col>
))}
</Row>
</Container>
</div>
);
};
export default App;
Output:
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