React Common - Object Structures - template

A template notation used to specify templates for UI component elements.

import { template } from "devextreme/core/templates/template"
Type:

String

|

Function

|

HTMLElement | jQuery

Templates are passed as properties that end with ...Template (in jQuery, Angular, and Vue) or ...Render/...Component (in React).

Each template has access to the following parameters:

  • data
    A data source object or an object with fields specific to a particular template. For information on the contents of data, refer to the Template Data section of the template's API reference article.

  • index
    A zero-based index of the item in the collection. Available only in collection UI component templates.

  • element
    A jQuery element that represents the UI component element being customized. Available only if you use jQuery.

The following code shows how to declare a template and use these parameters. This code declares an itemTemplate for the List UI component:

jQuery
index.js
$(function() {
    $("#listContainer").dxList({
        items: [
            { itemProperty: "someValue" },
            // ...
        ],
        itemTemplate: function (data, index, element) {
            return index + " - " + data.itemProperty;

            // ===== or using the "element" parameter =====
            const $item = $("<div>").text(
                index + " - " + data.itemProperty
            );
            element.append($item);
        }
    });
});
Angular
app.component.html
app.component.ts
app.module.ts
<dx-list
    [items]="listData"
    itemTemplate="list-item">
    <div *dxTemplate="let data of 'list-item'; let index = index">
        {{index}} - {{data.itemProperty}}
    </div>
</dx-list>
import { Component } from '@angular/core';

@Component({
    selector: 'app-root',
    templateUrl: './app.component.html',
    styleUrls: ['./app.component.css']
})
export class AppComponent {
    listData = [
        { itemProperty: "someValue" },
        // ...
    ]
}
import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { AppComponent } from './app.component';

import { DxListModule } from 'devextreme-angular';

@NgModule({
    declarations: [
        AppComponent
    ],
    imports: [
        BrowserModule,
        DxListModule
    ],
    providers: [ ],
    bootstrap: [AppComponent]
})
export class AppModule { }
Vue
App.vue
<template>
    <DxList
        :items="listData"
        item-template="list-item">
        <template #list-item="{ data, index }">
            {{ index }} - {{ data.itemProperty }}
        </template>
    </DxList>
</template>

<script>
import 'devextreme/dist/css/dx.light.css';

import DxList from 'devextreme-vue/list';

export default {
    components: {
        DxList
    },
    data() {
        return {
            listData: [
                { itemProperty: 'someValue' },
                // ...
            ]
        }
    }
}
</script>
React
App.js
import React from 'react';
import 'devextreme/dist/css/dx.light.css';

import List from 'devextreme-react/list';

const renderListItem = (data, index) => {
    return (
        <div>{index} - {data.itemProperty}</div>
    );
}

class App extends React.Component {
    listData = [
        { itemProperty: 'someValue' },
        // ...
    ];

    render() {
        return (
            <List
                items={this.listData}
                itemRender={renderListItem}
            />
        );
    }
}
export default App;
NOTE

Declare named templates within the component's markup but outside the templated element. Non-named templates should be declared inside the templated element.

Collection UI components also support templates for individual items. Do not specify the UI component's dataSource property if you use individual templates.

jQuery
index.js
$(function() {
    $("#listContainer").dxList({
        items: [{
            template: function () {
                return $("<i>").text("Item 1")
            }
        }, {
            template: function () {
                return $("<b>").text("Item 2")
            }
        },{
            template: function () {
                return $("<div>").append(
                    $("<span>").text("Item with nested component"),
                    $("<div>").dxButton({
                        text: "Click me"
                    })
                )
            }
        }]
    });
});
Angular
app.component.html
app.module.ts
<dx-list>
    <dxi-item>
        <i>Item 1</i>
    </dxi-item>
    <dxi-item>
        <b>Item 2</b>
    </dxi-item>
    <dxi-item>
        <div *dxTemplate>
            Item with a nested component
            <dx-button text="Click me"></dx-button>
        </div>
    </dxi-item>
</dx-list>
import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { AppComponent } from './app.component';

import { DxListModule, DxButtonModule } from 'devextreme-angular';

@NgModule({
    declarations: [
        AppComponent
    ],
    imports: [
        BrowserModule,
        DxListModule,
        DxButtonModule
    ],
    providers: [ ],
    bootstrap: [AppComponent]
})
export class AppModule { }
Vue
App.vue
<template>
    <DxList>
        <DxItem>
            <template #default>
                <i>Item 1</i>
            </template>
        </DxItem>
        <DxItem>
            <template #default>
                <i>Item 2</i>
            </template>
        </DxItem>
        <DxItem>
            <template #default>               
                <div>
                    Item with a nested component
                    <DxButton text="Click me" />
                </div>
            </template>
        </DxItem>
    </DxList>
</template>

<script>
import 'devextreme/dist/css/dx.light.css';

import DxList, {
    DxItem
} from 'devextreme-vue/list';
import DxButton from 'devextreme-vue/button';

export default {
    components: {
        DxList,
        DxItem,
        DxButton
    }
}
</script>
React
App.js
import React from 'react';
import 'devextreme/dist/css/dx.light.css';

import List, { Item } from 'devextreme-react/list';
import Button from 'devextreme-react/button';

class App extends React.Component {
    render() {
        return (
            <List>
                <Item>
                    <i>Item 1</i>
                </Item>
                <Item>
                    <i>Item 2</i>
                </Item>
                <Item>
                    Item with a nested component
                    <Button text="Click me" />
                </Item>
            </List>
        );
    }
}
export default App;
See Also