Master-Detail API
DataGrid API allows you to implement custom expand/collapse logic for master-detail rows. This example uses the expandRow(key) and collapseAll(groupIndex) methods inside the onSelectionChanged event handler to allow you to expand only one row at a time.
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>
<DxDataGrid
id="grid-container"
:show-borders="true"
:data-source="dataSource"
key-expr="ID"
@selection-changed="selectionChanged"
@content-ready="contentReady"
>
<DxSelection mode="single"/>
<DxColumn
:width="70"
data-field="Prefix"
caption="Title"
/>
<DxColumn data-field="FirstName"/>
<DxColumn data-field="LastName"/>
<DxColumn
:width="170"
data-field="Position"
/>
<DxColumn
:width="125"
data-field="State"
/>
<DxColumn
data-field="BirthDate"
data-type="date"
/>
<DxMasterDetail
:enabled="false"
template="detailTemplate"
/>
<template #detailTemplate="{ data: employee }">
<div class="employee-info">
<img
:src="employee.data.Picture"
class="employee-photo"
>
<p class="employee-notes">{{ employee.data.Notes }}</p>
</div>
</template>
</DxDataGrid>
</template>
<script>
import DxDataGrid, {
DxColumn,
DxMasterDetail,
DxSelection
} from 'devextreme-vue/data-grid';
import { employees } from './data.js';
export default {
components: {
DxDataGrid,
DxColumn,
DxMasterDetail,
DxSelection
},
data() {
return {
dataSource: employees
};
},
methods: {
contentReady(e) {
if (!e.component.getSelectedRowKeys().length)
{ e.component.selectRowsByIndexes(0); }
},
selectionChanged(e) {
e.component.collapseAll(-1);
e.component.expandRow(e.currentSelectedRowKeys[0]);
}
}
};
</script>
<style>
#grid-container {
height: 440px;
}
#grid-container .dx-datagrid-content tr.dx-data-row {
cursor: pointer;
}
.employee-info .employee-photo {
height: 140px;
float: left;
padding: 20px 20px 20px 0;
}
.employee-info .employee-notes {
padding-top: 20px;
text-align: justify;
white-space: normal;
}
</style>
import { createApp } from 'vue';
import App from './App.vue';
createApp(App).mount('#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/20.2.6/css/dx.common.css" />
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/20.2.6/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>
</body>
</html>
export const employees = [{
'ID': 1,
'FirstName': 'John',
'LastName': 'Heart',
'Prefix': 'Mr.',
'Position': 'CEO',
'Picture': '../../../../images/employees/01.png',
'BirthDate': '1964/03/16',
'HireDate': '1995/01/15',
'Notes': 'John has been in the Audio/Video industry since 1990. He has led DevAv as its CEO since 2003. When not working hard as the CEO, John loves to golf and bowl. He once bowled a perfect game of 300.',
'Address': '351 S Hill St.',
'State': 'California',
'City': 'Los Angeles'
}, {
'ID': 2,
'FirstName': 'Olivia',
'LastName': 'Peyton',
'Prefix': 'Mrs.',
'Position': 'Sales Assistant',
'Picture': '../../../../images/employees/09.png',
'BirthDate': '1981/06/03',
'HireDate': '2012/05/14',
'Notes': 'Olivia loves to sell. She has been selling DevAV products since 2012. Olivia was homecoming queen in high school. She is expecting her first child in 6 months. Good Luck Olivia.',
'Address': '807 W Paseo Del Mar',
'State': 'California',
'City': 'Los Angeles'
}, {
'ID': 3,
'FirstName': 'Robert',
'LastName': 'Reagan',
'Prefix': 'Mr.',
'Position': 'CMO',
'Picture': '../../../../images/employees/03.png',
'BirthDate': '1974/09/07',
'HireDate': '2002/11/08',
'Notes': 'Robert was recently voted the CMO of the year by CMO Magazine. He is a proud member of the DevAV Management Team. Robert is a championship BBQ chef, so when you get the chance ask him for his secret recipe.',
'Address': '4 Westmoreland Pl.',
'State': 'Arkansas',
'City': 'Bentonville'
}, {
'ID': 4,
'FirstName': 'Greta',
'LastName': 'Sims',
'Prefix': 'Ms.',
'Position': 'HR Manager',
'Picture': '../../../../images/employees/04.png',
'BirthDate': '1977/11/22',
'HireDate': '1998/04/23',
'Notes': "Greta has been DevAV's HR Manager since 2003. She joined DevAV from Sonee Corp. Greta is currently training for the NYC marathon. Her best marathon time is 4 hours. Go Greta.",
'Address': '1700 S Grandview Dr.',
'State': 'Georgia',
'City': 'Atlanta'
}, {
'ID': 5,
'FirstName': 'Brett',
'LastName': 'Wade',
'Prefix': 'Mr.',
'Position': 'IT Manager',
'Picture': '../../../../images/employees/05.png',
'BirthDate': '1968/12/01',
'HireDate': '2009/03/06',
'Notes': 'Brett came to DevAv from Microsoft and has led our IT department since 2012. When he is not working hard for DevAV, he coaches Little League (he was a high school pitcher).',
'Address': '1120 Old Mill Rd.',
'State': 'Idaho',
'City': 'Boise'
}, {
'ID': 6,
'FirstName': 'Sandra',
'LastName': 'Johnson',
'Prefix': 'Mrs.',
'Position': 'Controller',
'Picture': '../../../../images/employees/06.png',
'BirthDate': '1974/11/15',
'HireDate': '2005/05/11',
'Notes': "Sandra is a CPA and has been our controller since 2008. She loves to interact with staff so if you've not met her, be certain to say hi. Sandra has 2 daughters both of whom are accomplished gymnasts.",
'Address': '4600 N Virginia Rd.',
'State': 'Utah',
'City': 'Beaver'
}, {
'ID': 7,
'FirstName': 'Kevin',
'LastName': 'Carter',
'Prefix': 'Mr.',
'Position': 'Shipping Manager',
'Picture': '../../../../images/employees/07.png',
'BirthDate': '1978/01/09',
'HireDate': '2009/08/11',
'Notes': 'Kevin is our hard-working shipping manager and has been helping that department work like clockwork for 18 months. When not in the office, he is usually on the basketball court playing pick-up games.',
'Address': '424 N Main St.',
'State': 'California',
'City': 'San Diego'
}, {
'ID': 8,
'FirstName': 'Cynthia',
'LastName': 'Stanwick',
'Prefix': 'Ms.',
'Position': 'HR Assistant',
'Picture': '../../../../images/employees/08.png',
'BirthDate': '1985/06/05',
'HireDate': '2008/03/24',
'Notes': 'Cindy joined us in 2008 and has been in the HR department for 2 years. She was recently awarded employee of the month. Way to go Cindy!',
'Address': '2211 Bonita Dr.',
'State': 'Arkansas',
'City': 'Little Rock'
}, {
'ID': 9,
'FirstName': 'Kent',
'LastName': 'Samuelson',
'Prefix': 'Dr.',
'Position': 'Ombudsman',
'Picture': '../../../../images/employees/02.png',
'BirthDate': '1972/09/11',
'HireDate': '2009/04/22',
'Notes': 'As our ombudsman, Kent is on the front-lines solving customer problems and helping our partners address issues out in the field. He is a classically trained musician and is a member of the Chamber Orchestra.',
'Address': '12100 Mora Dr',
'State': 'Missouri',
'City': 'St. Louis'
}];
System.config({
transpiler: 'plugin-babel',
meta: {
'*.vue': {
loader: 'vue-loader'
},
'devextreme/localization.js': {
"esModule": true
},
},
paths: {
'npm:': 'https://unpkg.com/'
},
map: {
'vue': 'npm:vue@3.0.0/dist/vue.esm-browser.js',
'vue-loader': 'npm:dx-systemjs-vue-browser@1.0.15/index.js',
'mitt': 'npm:mitt/dist/mitt.umd.js',
'rrule': 'npm:rrule@2.6.6/dist/es5/rrule.js',
'luxon': 'npm:luxon@1.26.0/build/global/luxon.min.js',
'es6-object-assign': 'npm:es6-object-assign@1.1.0',
'devextreme': 'npm:devextreme@20.2.6',
'devextreme-vue': 'npm:devextreme-vue@20.2.6',
'jszip': 'npm:jszip@3.6.0/dist/jszip.min.js',
'devextreme-quill': 'npm:devextreme-quill@0.10.3/dist/dx-quill.min.js',
'devexpress-diagram': 'npm:devexpress-diagram@2.0.18/dist/dx-diagram.js',
'devexpress-gantt': 'npm:devexpress-gantt@2.0.24/dist/dx-gantt.js',
'preact': 'npm:preact@10.5.13/dist/preact.js',
'preact/hooks': 'npm:preact@10.5.13/hooks/dist/hooks.js',
'plugin-babel': 'npm:systemjs-plugin-babel@0.0.25/plugin-babel.js',
'systemjs-babel-build': 'npm:systemjs-plugin-babel@0.0.25/systemjs-babel-browser.js'
},
packages: {
'devextreme-vue': {
main: 'index.js'
},
'devextreme': {
defaultExtension: 'js'
},
'devextreme/events/utils': {
main: 'index'
},
'devextreme/events': {
main: 'index'
},
'es6-object-assign': {
main: './index.js',
defaultExtension: 'js'
}
},
babelOptions: {
sourceMaps: false,
stage0: true
}
});