Manipulate listview as grid layout in React Listview component
30 Jan 202324 minutes to read
In Listview, list items can be rendered in grid layout with following data manipulations.
-
Add Item
-
Remove Item
-
Sort Items
-
Filter Items
Grid Layout
In this section, we will discuss about rendering of list items in grid layout.
-
Initialize and render ListView with dataSource which will render list items in list layout.
-
Now, add the below CSS to list item. This will make list items to render in grid layout
#default-list .e-list-item {
height: 100px;
width: 100px;
float: left;
}In the below sample, we have rendered List items in grid layout.
import * as ReactDOM from 'react-dom';
import * as React from 'react';
import { ListViewComponent } from '@syncfusion/ej2-react-lists';
function App() {
//Define an array of number
let data = [1, 2, 3, 4, 5, 6, 7, 8, 9];
function listtemplate(data) {
return (<img id="listImage" src="./apple.png" alt="apple"/>);
}
;
return (<ListViewComponent id='list' dataSource={data} template={listtemplate}>
</ListViewComponent>);
}
export default App;
ReactDOM.render(<App />, document.getElementById('element'));import * as ReactDOM from 'react-dom';
import * as React from 'react';
import { ListViewComponent } from '@syncfusion/ej2-react-lists';
function App() {
//Define an array of number
let data: number[] = [1, 2, 3, 4, 5, 6, 7, 8, 9];
function listtemplate(data: any): JSX.Element {
return (
<img id="listImage" src="./apple.png" alt="apple" />
)};
return (
<ListViewComponent id='list'
dataSource={data}
template= {listtemplate as any} >
</ListViewComponent>
)
}
export default App;
ReactDOM.render(<App />, document.getElementById('element'));Data manipulation
In this section, we will discuss about ListView data manipulations.
Add Item
We can add list item using addItem API. This will accept array of data as argument.
listViewInstance.addItem([{text: 'Apricot', id: '32'}]);In the below sample, you can add new fruit item by clicking add button which will open dialog box with fruit name and image URL text box. After entering the item details, click the add button. This will add your new fruit item.
Remove item
We can remove list item using removeItem API. This will accept fields with id or list item element as argument.
listViewInstance.removeItem({id: '32'});In the below sample, you can remove fruit by hovering the fruit item which will show delete button and click that delete button to delete that fruit from your list.
Sort Items
Listview can be sorted either in Ascending or Descending order. To enable sorting in your ListView, set sortOrder as Ascending or Descending.
<ListViewComponent id='list' sortOrder= 'Ascending'></ListViewComponent>We can also set sorting after component initialization.
listViewInstance.sortOrder = 'Ascending'In the below sample, we have sorted fruits in Ascending order. To sort it in descending, click on sort order icon and vice versa.
Filter Items
Listview data can be filtered with the help of dataManager. After filtering the data, update ListView dataSource with filtered data.
let value = filterInput.value; //input text box value
let filteredData = new DataManager(listdata).executeLocal(
new Query().where("text", "startswith", value, true)
);
listViewInstance.dataSource = filteredData;In the below sample, we can filter fruit items with the help of search text box. This will filter fruit items based on your input. Here we used startswith of input text to filter data in DataManager.
import * as ReactDOM from 'react-dom';
import * as React from 'react';
import { ListViewComponent } from '@syncfusion/ej2-react-lists';
import { closest } from '@syncfusion/ej2-base';
import { DataManager, Query } from "@syncfusion/ej2-data";
import { DialogComponent } from '@syncfusion/ej2-react-popups';
function App() {
let ascClass = "e-sort-icon-ascending";
let desClass = "e-sort-icon-descending";
//Define an array of JSON data
let fruitsdata = [
{ text: "Date", id: "1", imgUrl: "./dates.jpg" },
{ text: "Fig", id: "2", imgUrl: "./fig.jpg" },
{ text: "Apple", id: "3", imgUrl: "./apple.png" },
{ text: "Apricot", id: "4", imgUrl: "./apricot.jpg" },
{ text: "Grape", id: "5", imgUrl: "./grape.jpg" },
{ text: "Strawberry", id: "6", imgUrl: "./strawberry.jpg" },
{ text: "Pineapple", id: "7", imgUrl: "./pineapple.jpg" },
{ text: "Melon", id: "8", imgUrl: "./melon.jpg" },
{ text: "Lemon", id: "9", imgUrl: "./lemon.jpg" },
{ text: "Cherry", id: "10", imgUrl: "./cherry.jpg" }
];
let add = null;
let search = null;
let sort = null;
let imgURL = null;
let name = null;
let dialogInstance = null;
let listviewInstance = null;
let buttonObj = [
{
click: dlgButtonClick.bind(this),
buttonModel: { content: "Add", isPrimary: true }
}
];
function addItem() {
if (name)
name.value = "";
if (imgURL)
imgURL.value = "";
if (dialogInstance)
dialogInstance.show();
}
//Here we are removing list item
function onDeleteBtnClick(e) {
e.stopPropagation();
let li = closest(e.currentTarget, ".e-list-item");
let data = listviewInstance.findItem(li);
listviewInstance.removeItem(data);
new DataManager(fruitsdata).remove("id", { id: data["id"] });
}
//Here we are adding list item
function dlgButtonClick() {
if (listviewInstance && dialogInstance) {
let name = name.value;
let url = imgURL.value;
let id = Math.random() * 10000;
listviewInstance.addItem([{ text: name, id: id, imgUrl: url }]);
fruitsdata.push({ text: name, id: id, imgUrl: url });
dialogInstance.hide();
}
}
//Here we are sorting list item
function sortItems() {
if (listviewInstance && sort) {
let ele = sort.firstElementChild;
let des = ele.classList.contains(desClass) ? true : false;
if (des) {
ele.classList.remove(desClass);
ele.classList.add(ascClass);
listviewInstance.sortOrder = "Ascending";
}
else {
ele.classList.remove(ascClass);
ele.classList.add(desClass);
listviewInstance.sortOrder = "Descending";
}
listviewInstance.dataBind();
}
}
//Here, the list items are filtered using the DataManager instance.
function onKeyUp() {
if (listviewInstance) {
let value = search.value;
let data = new DataManager(fruitsdata).executeLocal(new Query().where("text", "startswith", value, true));
if (!value) {
listviewInstance.dataSource = fruitsdata.slice();
}
else {
listviewInstance.dataSource = data;
listviewInstance.dataBind();
}
}
}
function content(data) {
return (<div id="listDialog">
<div className="input_name">
<label htmlFor="name">Fruit Name: </label>
<input id="name" ref={scope => {
name = scope;
}} className="e-input" type="text" placeholder="Enter fruit name"/>
</div>
<div>
<label htmlFor="imgurl">Fruit Image: </label>
<input id="imgurl" ref={scope => {
imgURL = scope;
}} className="e-input" type="text" placeholder="Enter image url"/>
</div>
</div>);
}
function listtemplate(data) {
return (<div className="fruits">
<div className="first">
<img id="listImage" src={data.imgUrl} alt="fruit"/>
<button className="delete e-control e-btn e-small e-round e-delete-btn e-primary e-icon-btn" data-ripple="true">
<span className="e-btn-icon e-icons delete-icon" onClick={onDeleteBtnClick.bind(this)}/>
</button>
</div>
<div className="fruitName">{data.text}</div>
</div>);
}
return (<div id="container">
<div className="headerContainer">
<div className="e-input-group">
<input id="search" ref={scope => {
search = scope;
}} className="e-input" type="text" onKeyUp={onKeyUp.bind(this)} placeholder="Search fruits"/>
<span className="e-input-group-icon e-input-search"/>
</div>
<button id="sort" className="e-control e-btn e-small e-round e-primary e-icon-btn" ref={scope => {
sort = scope;
}} title="Sort fruits" onClick={sortItems.bind(this)} data-ripple="true">
<span className="e-btn-icon e-icons e-sort-icon-ascending"/>
</button>
<button id="add" className="e-control e-btn e-small e-round e-primary e-icon-btn" ref={scope => {
add = scope;
}} onClick={addItem.bind(this)} title="Add fruit" data-ripple="true">
<span className="e-btn-icon e-icons e-add-icon"/>
</button>
</div>
<ListViewComponent id="list" dataSource={fruitsdata.slice()} template={listtemplate.bind(this)} sortOrder="Ascending" ref={scope => {
listviewInstance = scope;
}}/>
<DialogComponent id="dialog" header="Add fruit" content={content.bind(this)} visible={false} buttons={buttonObj} ref={dialog => (dialogInstance = dialog)} width={"300px"} showCloseIcon={true}/>
</div>);
}
export default App;
ReactDOM.render(<App />, document.getElementById('element'));import * as ReactDOM from 'react-dom';
import * as React from 'react';
import { ListViewComponent } from '@syncfusion/ej2-react-lists';
import { closest, enableRipple, MouseEventArgs } from '@syncfusion/ej2-base';
import { DataManager, Query } from "@syncfusion/ej2-data";
import { DialogComponent } from '@syncfusion/ej2-react-popups';
function App() {
let ascClass: string = "e-sort-icon-ascending";
let desClass: string = "e-sort-icon-descending";
//Define an array of JSON data
let fruitsdata: { [key: string]: Object }[] = [
{ text: "Date", id: "1", imgUrl: "./dates.jpg" },
{ text: "Fig", id: "2", imgUrl: "./fig.jpg" },
{ text: "Apple", id: "3", imgUrl: "./apple.png" },
{ text: "Apricot", id: "4", imgUrl: "./apricot.jpg" },
{ text: "Grape", id: "5", imgUrl: "./grape.jpg" },
{ text: "Strawberry", id: "6", imgUrl: "./strawberry.jpg" },
{ text: "Pineapple", id: "7", imgUrl: "./pineapple.jpg" },
{ text: "Melon", id: "8", imgUrl: "./melon.jpg" },
{ text: "Lemon", id: "9", imgUrl: "./lemon.jpg" },
{ text: "Cherry", id: "10", imgUrl: "./cherry.jpg" }
];
let add: HTMLElement | null = null;
let search: HTMLInputElement | null = null;
let sort: HTMLElement | null = null;
let imgURL: HTMLInputElement | null = null;
let name: HTMLInputElement | null = null;
let dialogInstance: DialogComponent | null = null;
let listviewInstance: ListViewComponent | null = null;
let buttonObj = [
{
click: dlgButtonClick.bind(this),
buttonModel: { content: "Add", isPrimary: true }
}
];
function addItem() {
if (name) name.value = "";
if (imgURL) imgURL.value = "";
if (dialogInstance) dialogInstance.show();
}
//Here we are removing list item
function onDeleteBtnClick(e: any) {
e.stopPropagation();
let li: Element = closest(e.currentTarget, ".e-list-item");
let data = (listviewInstance as any).findItem(li);
(listviewInstance as any).removeItem(data);
new DataManager(fruitsdata).remove("id", { id: data["id"] });
}
//Here we are adding list item
function dlgButtonClick() {
if (listviewInstance && dialogInstance) {
let name: string = (name as any).value;
let url: string = (imgURL as any).value;
let id: number = Math.random() * 10000;
listviewInstance.addItem([{ text: name, id: id, imgUrl: url }]);
fruitsdata.push({ text: name, id: id, imgUrl: url });
dialogInstance.hide();
}
}
//Here we are sorting list item
function sortItems() {
if (listviewInstance && sort) {
let ele = sort.firstElementChild as HTMLElement;
let des = ele.classList.contains(desClass) ? true : false;
if (des) {
ele.classList.remove(desClass);
ele.classList.add(ascClass);
listviewInstance.sortOrder = "Ascending";
} else {
ele.classList.remove(ascClass);
ele.classList.add(desClass);
listviewInstance.sortOrder = "Descending";
}
listviewInstance.dataBind();
}
}
//Here, the list items are filtered using the DataManager instance.
function onKeyUp() {
if (listviewInstance) {
let value: string = (search as any).value;
let data: Object[] = new DataManager(fruitsdata).executeLocal(
new Query().where("text", "startswith", value, true)
);
if (!value) {
listviewInstance.dataSource = fruitsdata.slice();
} else {
listviewInstance.dataSource = data as { [key: string]: Object }[];
listviewInstance.dataBind();
}
}
}
function content(data: any): JSX.Element {
return (
<div id="listDialog">
<div className="input_name">
<label htmlFor="name">Fruit Name: </label>
<input
id="name"
ref={scope => {
name = scope;
}}
className="e-input"
type="text"
placeholder="Enter fruit name"
/>
</div>
<div>
<label htmlFor="imgurl">Fruit Image: </label>
<input
id="imgurl"
ref={scope => {
imgURL = scope;
}}
className="e-input"
type="text"
placeholder="Enter image url"
/>
</div>
</div>
);
}
function listtemplate(data: any): JSX.Element {
return (
<div className="fruits">
<div className="first">
<img id="listImage" src={data.imgUrl} alt="fruit" />
<button
className="delete e-control e-btn e-small e-round e-delete-btn e-primary e-icon-btn"
data-ripple="true"
>
<span
className="e-btn-icon e-icons delete-icon"
onClick={onDeleteBtnClick.bind(this)}
/>
</button>
</div>
<div className="fruitName">{data.text}</div>
</div>
);
}
return (
<div id="container">
<div className="headerContainer">
<div className="e-input-group">
<input
id="search"
ref={scope => {
search = scope;
}}
className="e-input"
type="text"
onKeyUp={onKeyUp.bind(this)}
placeholder="Search fruits"
/>
<span className="e-input-group-icon e-input-search" />
</div>
<button
id="sort"
className="e-control e-btn e-small e-round e-primary e-icon-btn"
ref={scope => {
sort = scope;
}}
title="Sort fruits"
onClick={sortItems.bind(this)}
data-ripple="true"
>
<span className="e-btn-icon e-icons e-sort-icon-ascending" />
</button>
<button
id="add"
className="e-control e-btn e-small e-round e-primary e-icon-btn"
ref={scope => {
add = scope;
}}
onClick={addItem.bind(this)}
title="Add fruit"
data-ripple="true"
>
<span className="e-btn-icon e-icons e-add-icon" />
</button>
</div>
<ListViewComponent
id="list"
dataSource={fruitsdata.slice()}
template={listtemplate.bind(this) as any}
sortOrder="Ascending"
ref={scope => {
listviewInstance = scope;
}}
/>
<DialogComponent
id="dialog"
header="Add fruit"
content={content.bind(this) as any}
visible={false}
buttons={buttonObj}
ref={dialog => (dialogInstance = dialog)}
width={"300px"}
showCloseIcon={true}
/>
</div>
);
}
export default App;
ReactDOM.render(<App />, document.getElementById('element'));