DevExtreme jQuery/JS - Customize Item Appearance

For a minor customization of Toolbar items, you can define specific fields in item data objects. For example, the following code gererates four toolbar items: the first is a widget, the second is hidden, the third is disabled, the fourth is relocated.

jQuery
JavaScript
HTML
$(function() {
    $("#toolbarContainer").dxToolbar({
        items: [{
            widget: 'dxButton',
            options: {
                type: 'back',
                text: 'Back'
            },
            location: 'before'
        }, {
            text: 'Change',
            locateInMenu: 'always',
            visible: false
        }, {
            text: 'Remove',
            locateInMenu: 'always',
            disabled: true
        }, {
            text: 'Products',
            location: 'center'
        }]
    });
});
<div id="toolbarContainer"></div>
Angular
HTML
TypeScript
<dx-toolbar>
    <dxi-item
        widget="dxButton"
        location="before"
        [options]="buttonOptions">
    </dxi-item>
    <dxi-item
        text="Change"
        locateInMenu="always"
        [visible]="false">
    </dxi-item>
    <dxi-item
        text="Remove"
        locateInMenu="always"
        [disabled]="true">
    </dxi-item>
    <dxi-item
        text="Products"
        location="center">
    </dxi-item>
</dx-toolbar>
import { DxToolbarModule, DxButtonModule } from 'devextreme-angular';
// ...
export class AppComponent {
    buttonOptions = {
        type: 'back',
        text: 'Back'
    };
}
@NgModule({
    imports: [
        // ...
        DxToolbarModule,
        DxButtonModule
    ],
    // ...
})
Vue
App.vue
<template>
    <DxToolbar>
        <DxItem
            widget="dxButton"
            location="before"
            :options="buttonOptions"
        />
        <DxItem
            text="Change"
            locate-in-menu="always"
            :visible="false"
        />
        <DxItem
            text="Remove"
            locate-in-menu="always"
            :disabled="true"
        />
        <DxItem
            text="Products"
            location="center"
        />
    </DxToolbar>
</template>
<script>
import 'devextreme/dist/css/dx.common.css';
import 'devextreme/dist/css/dx.light.css';

import DxToolbar, { DxItem } from 'devextreme-vue/toolbar';

export default {
    components: {
        DxToolbar,
        DxItem
    },
    data() {
        return {
            buttonOptions: {
                type: 'back',
                text: 'Back'
            }
        }
    }
};
</script>
React
App.js
import React from 'react';
import 'devextreme/dist/css/dx.common.css';
import 'devextreme/dist/css/dx.light.css';

import { Toolbar, Item } from 'devextreme-react/toolbar';

const buttonOptions = {
    type: 'back',
    text: 'Back'
};

class App extends React.Component {
    render() {
        return (
            <Toolbar>
                <Item
                    widget="dxButton"
                    location="before"
                    options={buttonOptions}
                />
                <Item
                    text="Change"
                    locateInMenu="always"
                    visible={false}
                />
                <Item
                    text="Remove"
                    locateInMenu="always"
                    disabled={true}
                />
                <Item
                    text="Products"
                    location="center"
                />
            </Toolbar>
        );
    }
}

export default App;

If you need a more flexible solution, define an itemTemplate and menuItemTemplate to customize toolbar items and commands in the overflow menu, respectively. In Angular and Vue, you can declare the templates in the markup. In React, you can use rendering functions (shown in the code below) or components.

Angular
HTML
TypeScript
<dx-toolbar 
    [items]="toolbarItems"
    itemTemplate="itemTemplate"
    menuItemTemplate="menuItemTemplate">
    <div *dxTemplate="let item of 'itemTemplate'">
        <b style="color: green;">{{item.text}}</b>
    </div>
    <div *dxTemplate="let menuItem of 'menuItemTemplate'">
        <b style="font-style: italic;">{{menuItem.text}}</b>
    </div>
</dx-toolbar>
import { DxToolbarModule } from 'devextreme-angular';
// ...
export class AppComponent {
    toolbarItems = [{
        text: 'Back',
        location: 'before'
    }, {
        text: 'Change',
        locateInMenu: 'always'
    }, {
        text: 'Remove',
        locateInMenu: 'always'
    }, {
        text: 'Products',
        location: 'center'
    }];
}
@NgModule({
    imports: [
        // ...
        DxToolbarModule
    ],
    // ...
})
Vue
App.vue
<template>
    <DxToolbar
        :items="toolbarItems"
        item-template="itemTemplate"
        menu-item-template="menuItemTemplate">
        <template #itemTemplate="{ data }">
            <b style="color: green;">{{data.text}}</b>
        </template>
        <template #menuItemTemplate="{ data }">
            <b style="font-style: italic;">{{data.text}}</b>
        </template>
    </DxToolbar>
</template>
<script>
import 'devextreme/dist/css/dx.common.css';
import 'devextreme/dist/css/dx.light.css';

import DxToolbar from 'devextreme-vue/toolbar';

export default {
    components: {
        DxToolbar
    },
    data() {
        return {
            toolbarItems: [{
                text: 'Back',
                location: 'before'
            }, {
                text: 'Change',
                locateInMenu: 'always'
            }, {
                text: 'Remove',
                locateInMenu: 'always'
            }, {
                text: 'Products',
                location: 'center'
            }]
        };
    }
};
</script>
React
App.js
import React from 'react';
import 'devextreme/dist/css/dx.common.css';
import 'devextreme/dist/css/dx.light.css';

import { Toolbar } from 'devextreme-react/toolbar';

const toolbarItems = [{
    text: 'Back',
    location: 'before'
}, {
    text: 'Change',
    locateInMenu: 'always'
}, {
    text: 'Remove',
    locateInMenu: 'always'
}, {
    text: 'Products',
    location: 'center'
}];

class App extends React.Component {
    render() {
        return (
            <Toolbar
                items={toolbarItems}
                itemRender={this.renderItem}
                menuItemRender={this.renderMenuItem}
            />
        );
    }

    renderItem(data) {
        return (
            <b style={{ color: 'green' }}>{data.text}</b>
        );
    }

    renderMenuItem(data) {
        return (
            <b style={{ fontStyle: 'italic' }}>{data.text}</b>
        );
    }
}

export default App;

If you use jQuery, use DOM manipulation methods to combine the HTML markup. To apply this markup to toolbar items and commands in the overflow menu, use the itemTemplate and menuItemTemplate callback functions, respectively.

jQuery
JavaScript
HTML
$(function() {
    $("#toolbarContainer").dxToolbar({
        items: toolbarItems,
        itemTemplate: function(itemData, itemIndex, itemElement) {
            itemElement.append("<b style='color: green;'>" + itemData.text + "</b>");
        },
        menuItemTemplate: function(itemData, itemIndex, itemElement) {
            itemElement.append("<b style='font-style: italic;'>" + itemData.text + "</b>");
        }
    });
});
<div id="tabPanelContainer"></div>

You can also customize an individual toolbar item or menu command. For this purpose, declare a template for this item or command as a script and pass its id to the template or menuItemTemplate option, respectively.

jQuery
JavaScript
HTML
var toolbarItems = [{
    text: "Back",
    location: "before",
    template: $("#individualItemTemplate")
}, {
    text: "Change",
    locateInMenu: "always",
    menuItemTemplate: $("#individualMenuItemTemplate")
},
// ...
];
<script id="individualItemTemplate" type="text/html">
    <!-- ... -->
</script>

<script id="individualMenuItemTemplate" type="text/html">
    <!-- ... -->
</script>

In addition, you can use a 3rd-party template engine to customize widget appearance. For more information, see the 3rd-Party Template Engines article.

See Also