Multi-Row Headers (Bands)
Documentation
The DataGrid widget allows you to group column headers logically to implement a banded layout. In this demo, the columns array has a hierarchical structure, although such a layout can be built on a flat-structured array as well. Note that despite being banded, the nested columns remain interactive.
www.wikipedia.org
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<template>
<DxDataGrid
id="grid"
:data-source="countries"
:column-auto-width="true"
:allow-column-reordering="true"
:show-borders="true"
>
<DxColumn data-field="Country"/>
<DxColumn
data-field="Area"
header-cell-template="headerTemplate"
/>
<DxColumn caption="Population">
<DxColumn
caption="Total"
data-field="Population_Total"
format="fixedPoint"
/>
<DxColumn
caption="Urban"
data-field="Population_Urban"
format="percent"
/>
</DxColumn>
<DxColumn caption="Nominal GDP">
<DxColumn
caption="Total, mln $"
data-field="GDP_Total"
format="fixedPoint"
sort-order="desc"
/>
<DxColumn caption="By Sector">
<DxColumn
:width="95"
:format="gdpFormat"
caption="Agriculture"
data-field="GDP_Agriculture"
/>
<DxColumn
:width="80"
:format="gdpFormat"
caption="Industry"
data-field="GDP_Industry"
/>
<DxColumn
:width="85"
:format="gdpFormat"
caption="Services"
data-field="GDP_Services"
/>
</DxColumn>
</DxColumn>
<template #headerTemplate="{ data }">
<div>Area, km<sup>2</sup></div>
</template>
</DxDataGrid>
</template>
<script>
import DxDataGrid, { DxColumn } from 'devextreme-vue/data-grid';
import { countries } from './data.js';
export default {
components: {
DxDataGrid,
DxColumn
},
data() {
return {
countries: countries,
gdpFormat: {
type: 'percent',
precision: 1
}
};
}
};
</script>
<style>
#grid sup {
font-size: 0.8em;
vertical-align: super;
line-height: 0;
}
.long-title h3 {
font-family: 'Segoe UI Light', 'Helvetica Neue Light', 'Segoe UI', 'Helvetica Neue', 'Trebuchet MS', Verdana;
font-weight: 200;
font-size: 28px;
text-align: center;
margin-bottom: 20px;
}
</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/20.1.4/css/dx.common.css" />
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/20.1.4/css/dx.light.css" />
<link rel="stylesheet" type="text/css" href="styles.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 class="long-title">
<h3>Country Area, Population, and GDP Structure</h3>
</div>
<div id="app"></div>
</div>
</body>
</html>
export const countries = [{
'ID': 1,
'Country': 'Brazil',
'Area': 8515767,
'Population_Urban': 0.85,
'Population_Rural': 0.15,
'Population_Total': 205809000,
'GDP_Agriculture': 0.054,
'GDP_Industry': 0.274,
'GDP_Services': 0.672,
'GDP_Total': 2353025
}, {
'ID': 2,
'Country': 'China',
'Area': 9388211,
'Population_Urban': 0.54,
'Population_Rural': 0.46,
'Population_Total': 1375530000,
'GDP_Agriculture': 0.091,
'GDP_Industry': 0.426,
'GDP_Services': 0.483,
'GDP_Total': 10380380
}, {
'ID': 3,
'Country': 'France',
'Area': 675417,
'Population_Urban': 0.79,
'Population_Rural': 0.21,
'Population_Total': 64529000,
'GDP_Agriculture': 0.019,
'GDP_Industry': 0.183,
'GDP_Services': 0.798,
'GDP_Total': 2846889
}, {
'ID': 4,
'Country': 'Germany',
'Area': 357021,
'Population_Urban': 0.75,
'Population_Rural': 0.25,
'Population_Total': 81459000,
'GDP_Agriculture': 0.008,
'GDP_Industry': 0.281,
'GDP_Services': 0.711,
'GDP_Total': 3859547
}, {
'ID': 5,
'Country': 'India',
'Area': 3287590,
'Population_Urban': 0.32,
'Population_Rural': 0.68,
'Population_Total': 1286260000,
'GDP_Agriculture': 0.174,
'GDP_Industry': 0.258,
'GDP_Services': 0.569,
'GDP_Total': 2047811
}, {
'ID': 6,
'Country': 'Italy',
'Area': 301230,
'Population_Urban': 0.69,
'Population_Rural': 0.31,
'Population_Total': 60676361,
'GDP_Agriculture': 0.02,
'GDP_Industry': 0.242,
'GDP_Services': 0.738,
'GDP_Total': 2147952
}, {
'ID': 7,
'Country': 'Japan',
'Area': 377835,
'Population_Urban': 0.93,
'Population_Rural': 0.07,
'Population_Total': 126920000,
'GDP_Agriculture': 0.012,
'GDP_Industry': 0.275,
'GDP_Services': 0.714,
'GDP_Total': 4616335
}, {
'ID': 8,
'Country': 'Russia',
'Area': 17098242,
'Population_Urban': 0.74,
'Population_Rural': 0.26,
'Population_Total': 146544710,
'GDP_Agriculture': 0.039,
'GDP_Industry': 0.36,
'GDP_Services': 0.601,
'GDP_Total': 1857461
}, {
'ID': 9,
'Country': 'United States',
'Area': 9147420,
'Population_Urban': 0.81,
'Population_Rural': 0.19,
'Population_Total': 323097000,
'GDP_Agriculture': 0.0112,
'GDP_Industry': 0.191,
'GDP_Services': 0.797,
'GDP_Total': 17418925
}, {
'ID': 10,
'Country': 'United Kingdom',
'Area': 244820,
'Population_Urban': 0.82,
'Population_Rural': 0.18,
'Population_Total': 65097000,
'GDP_Agriculture': 0.007,
'GDP_Industry': 0.21,
'GDP_Services': 0.783,
'GDP_Total': 2945146
}];
System.config({
transpiler: 'plugin-babel',
meta: {
'*.vue': {
loader: 'vue-loader'
},
},
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@20.1',
'devextreme-vue': 'npm:devextreme-vue@20.1',
'jszip': 'npm:jszip@3.1.3/dist/jszip.min.js',
'quill': 'npm:quill@1.3.7/dist/quill.js',
'devexpress-diagram': 'npm:devexpress-diagram@1.0.5',
'devexpress-gantt': 'npm:devexpress-gantt@1.0.3',
'plugin-babel': 'npm:systemjs-plugin-babel@0/plugin-babel.js',
'systemjs-babel-build': 'npm:systemjs-plugin-babel@0/systemjs-babel-browser.js'
},
packages: {
'devextreme-vue': {
main: 'index.js'
},
'devextreme': {
defaultExtension: 'js'
},
'devextreme/events/utils': {
main: 'index'
},
'devextreme/events': {
main: 'index'
},
},
babelOptions: {
sourceMaps: false,
stage0: true
}
});