Tag Count Limitation
Documentation
You can use the maxDisplayedTags option to limit the number of displayed tags. When the specified limit is exceeded, the tags are combined into a single multi-tag that displays the number of selected items. Use the showMultiTagOnly option to specify whether to display a multi-tag only or other tags as well. You can also use onMultiTagPreparing event handler to customize the multi-tag, as shown in the second example.
Feel free to share demo-related thoughts here.
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If you have technical questions, please create a support ticket in the DevExpress Support Center.
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<template>
<div class="dx-fieldset">
<div class="dx-field">
<div class="dx-field-label">
Multi-tag for several items
</div>
<div class="dx-field-value">
<dx-tag-box
:items="products"
:value="[1, 2, 3, 4]"
:show-selection-controls="true"
:max-displayed-tags="3"
display-expr="Name"
value-expr="Id"
select-all-mode="allPages"
/>
</div>
</div>
<div class="dx-field">
<div class="dx-field-label">
Multi-tag for all items
</div>
<div class="dx-field-value">
<dx-tag-box
:items="items"
:value="[1, 2, 3, 4, 5]"
:show-selection-controls="true"
:max-displayed-tags="3"
display-expr="Name"
value-expr="Id"
@multiTagPreparing="onMultiTagPreparing"
/>
</div>
</div>
<div class="dx-field">
<div class="dx-field-label">
Multi-tag with ordinary tags
</div>
<div class="dx-field-value">
<dx-tag-box
:items="products"
:value="[1, 2, 3, 4, 5, 6, 7]"
:show-selection-controls-="true"
:max-displayed-tags="2"
:show-multi-tag-only="false"
display-expr="Name"
value-expr="Id"
select-all-mode="allPages"
/>
</div>
</div>
</div>
</template>
<script>
import { DxTagBox } from 'devextreme-vue';
import { products } from './data.js';
export default {
components: {
DxTagBox
},
data() {
return {
products,
items: products.slice(0, 5),
onMultiTagPreparing: (args) => {
const selectedItemsLength = args.selectedItems.length;
const totalCount = 5;
if(selectedItemsLength < totalCount) {
args.cancel = true;
} else {
args.text = `All selected (${ selectedItemsLength })`;
}
}
};
}
};
</script>
<style scoped>
.dx-field {
margin-bottom: 50px;
}
</style>
import Vue from 'vue';
import App from './App.vue';
new Vue({
el: '#app',
components: { App },
template: '<App/>'
});
<!DOCTYPE html>
<html>
<head>
<title>DevExtreme Demo</title>
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0" />
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/19.2.4/css/dx.common.css" />
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/19.2.4/css/dx.light.css" />
<script src="https://unpkg.com/core-js@2.4.1/client/shim.min.js"></script>
<script src="https://unpkg.com/systemjs@0.21.3/dist/system.js"></script>
<script type="text/javascript" src="config.js"></script>
<script type="text/javascript">
System.import('./index.js');
</script>
</head>
<body class="dx-viewport">
<div class="demo-container">
<div id="app">
</div>
</div>
</body>
</html>
export const products = [{
Id: 1,
Name: 'HD Video Player',
Price: 330,
Current_Inventory: 225,
Backorder: 0,
Manufacturing: 10,
Category: 'Video Players',
ImageSrc: 'images/products/1.png'
}, {
Id: 2,
Name: 'SuperHD Video Player',
Price: 400,
Current_Inventory: 150,
Backorder: 0,
Manufacturing: 25,
Category: 'Video Players',
ImageSrc: 'images/products/2.png'
}, {
Id: 3,
Name: 'SuperPlasma 50',
Price: 2400,
Current_Inventory: 0,
Backorder: 0,
Manufacturing: 0,
Category: 'Televisions',
ImageSrc: 'images/products/3.png'
}, {
Id: 4,
Name: 'SuperLED 50',
Price: 1600,
Current_Inventory: 77,
Backorder: 0,
Manufacturing: 55,
Category: 'Televisions',
ImageSrc: 'images/products/4.png'
}, {
Id: 5,
Name: 'SuperLED 42',
Price: 1450,
Current_Inventory: 445,
Backorder: 0,
Manufacturing: 0,
Category: 'Televisions',
ImageSrc: 'images/products/5.png'
}, {
Id: 6,
Name: 'SuperLCD 55',
Price: 1350,
Current_Inventory: 345,
Backorder: 0,
Manufacturing: 5,
Category: 'Televisions',
ImageSrc: 'images/products/6.png'
}, {
Id: 7,
Name: 'SuperLCD 42',
Price: 1200,
Current_Inventory: 210,
Backorder: 0,
Manufacturing: 20,
Category: 'Televisions',
ImageSrc: 'images/products/7.png'
}, {
Id: 8,
Name: 'SuperPlasma 65',
Price: 3500,
Current_Inventory: 0,
Backorder: 0,
Manufacturing: 0,
Category: 'Televisions',
ImageSrc: 'images/products/8.png'
}, {
Id: 9,
Name: 'SuperLCD 70',
Price: 4000,
Current_Inventory: 95,
Backorder: 0,
Manufacturing: 5,
Category: 'Televisions',
ImageSrc: 'images/products/9.png'
}, {
Id: 10,
Name: 'DesktopLED 21',
Price: 175,
Current_Inventory: null,
Backorder: 425,
Manufacturing: 75,
Category: 'Monitors',
ImageSrc: 'images/products/10.png'
}, {
Id: 12,
Name: 'DesktopLCD 21',
Price: 170,
Current_Inventory: 210,
Backorder: 0,
Manufacturing: 60,
Category: 'Monitors',
ImageSrc: 'images/products/12.png'
}, {
Id: 13,
Name: 'DesktopLCD 19',
Price: 160,
Current_Inventory: 150,
Backorder: 0,
Manufacturing: 210,
Category: 'Monitors',
ImageSrc: 'images/products/13.png'
}, {
Id: 14,
Name: 'Projector Plus',
Price: 550,
Current_Inventory: null,
Backorder: 55,
Manufacturing: 10,
Category: 'Projectors',
ImageSrc: 'images/products/14.png'
}, {
Id: 15,
Name: 'Projector PlusHD',
Price: 750,
Current_Inventory: 110,
Backorder: 0,
Manufacturing: 90,
Category: 'Projectors',
ImageSrc: 'images/products/15.png'
}, {
Id: 16,
Name: 'Projector PlusHT',
Price: 1050,
Current_Inventory: 0,
Backorder: 75,
Manufacturing: 57,
Category: 'Projectors',
ImageSrc: 'images/products/16.png'
}, {
Id: 17,
Name: 'ExcelRemote IR',
Price: 150,
Current_Inventory: 650,
Backorder: 0,
Manufacturing: 190,
Category: 'Automation',
ImageSrc: 'images/products/17.png'
}, {
Id: 18,
Name: 'ExcelRemote Bluetooth',
Price: 180,
Current_Inventory: 310,
Backorder: 0,
Manufacturing: 0,
Category: 'Automation',
ImageSrc: 'images/products/18.png'
}, {
Id: 19,
Name: 'ExcelRemote IP',
Price: 200,
Current_Inventory: 0,
Backorder: 325,
Manufacturing: 225,
Category: 'Automation',
ImageSrc: 'images/products/19.png'
}];
System.config({
transpiler: 'plugin-babel',
paths: {
'npm:': 'https://unpkg.com/'
},
map: {
vue: 'npm:vue@2.6.3/dist/vue.esm.browser.js',
'vue-loader': 'npm:dx-systemjs-vue-browser@latest/index.js',
'devextreme': 'npm:devextreme@19.2',
'devextreme-vue': 'npm:devextreme-vue@19.2',
jszip: 'npm:jszip@3.1.3/dist/jszip.min.js',
'quill': 'npm:quill@1.3.7/dist/quill.js',
'devexpress-diagram': 'npm:devexpress-diagram',
'devexpress-gantt': 'npm:devexpress-gantt',
'plugin-babel': 'npm:systemjs-plugin-babel@0/plugin-babel.js',
'systemjs-babel-build':
'npm:systemjs-plugin-babel@0/systemjs-babel-browser.js'
},
meta: {
'*.vue': { loader: 'vue-loader' }
},
packages: {
'devextreme-vue': {
main: 'index.js'
},
'devextreme': {
defaultExtension: 'js'
}
},
babelOptions: {
sourceMaps: false,
stage0: true
}
});