<template>
<div class="dx-fieldset">
<div class="dx-field">
<div class="dx-field-label">DropDownBox with embedded TreeView</div>
<div class="dx-field-value">
<DxDropDownBox
v-model:value="treeBoxValue"
:show-clear-button="true"
:data-source="treeDataSource"
value-expr="ID"
display-expr="name"
placeholder="Select a value..."
@value-changed="syncTreeViewSelection($event)"
>
<template #content="{ data }">
<DxTreeView
:ref="treeViewName"
:data-source="treeDataSource"
:select-by-click="true"
:select-nodes-recursive="false"
data-structure="plain"
key-expr="ID"
parent-id-expr="categoryId"
selection-mode="multiple"
show-check-boxes-mode="normal"
display-expr="name"
@content-ready="syncTreeViewSelection($event)"
@item-selection-changed="treeView_itemSelectionChanged($event)"
/>
</template>
</DxDropDownBox>
</div>
</div>
<div class="dx-field">
<div class="dx-field-label">DropDownBox with embedded DataGrid</div>
<div class="dx-field-value">
<DxDropDownBox
v-model:value="gridBoxValue"
:defer-rendering="false"
:show-clear-button="true"
:data-source="gridDataSource"
display-expr="CompanyName"
value-expr="ID"
placeholder="Select a value..."
>
<template #content="{ data }">
<DxDataGrid
:data-source="gridDataSource"
:columns="gridColumns"
:hover-state-enabled="true"
v-model:selected-row-keys="gridBoxValue"
>
<DxSelection mode="multiple"/>
<DxPaging
:enabled="true"
:page-size="10"
/>
<DxFilterRow :visible="true"/>
<DxScrolling mode="infinite"/>
</DxDataGrid>
</template>
</DxDropDownBox>
</div>
</div>
</div>
</template>
<script>
import DxDropDownBox from 'devextreme-vue/drop-down-box';
import DxTreeView from 'devextreme-vue/tree-view';
import { DxDataGrid, DxSelection, DxPaging, DxFilterRow, DxScrolling } from 'devextreme-vue/data-grid';
import CustomStore from 'devextreme/data/custom_store';
import 'whatwg-fetch';
export default {
components: {
DxDropDownBox,
DxTreeView,
DxDataGrid,
DxSelection,
DxPaging,
DxFilterRow,
DxScrolling
},
data() {
return {
treeDataSource: null,
treeBoxValue: null,
gridDataSource: null,
gridBoxValue: [3],
treeViewName: 'tree-view',
gridColumns: ['CompanyName', 'City', 'Phone']
};
},
created() {
this.treeDataSource = this.makeAsyncDataSource('treeProducts.json');
this.gridDataSource = this.makeAsyncDataSource('customers.json');
this.treeBoxValue = ['1_1'];
},
methods: {
makeAsyncDataSource(jsonFile) {
return new CustomStore({
loadMode: 'raw',
key: 'ID',
load: function() {
return fetch(`../../../../data/${ jsonFile}`)
.then(response => response.json());
}
});
},
syncTreeViewSelection(e) {
let treeView = (e.component.selectItem && e.component) || (this.$refs[this.treeViewName] && this.$refs[this.treeViewName].instance);
if (treeView) {
if (e.value === null) {
treeView.unselectAll();
} else {
let values = e.value || this.treeBoxValue;
values && values.forEach(function(value) {
treeView.selectItem(value);
});
}
}
},
treeView_itemSelectionChanged(e) {
this.treeBoxValue = e.component.getSelectedNodeKeys();
}
}
};
</script>
<style scoped>
.dx-fieldset {
height: 500px;
}
</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/20.2.4/css/dx.common.css" />
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/20.2.4/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>
System.config({
transpiler: 'plugin-babel',
meta: {
'*.vue': {
loader: 'vue-loader'
},
},
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',
'whatwg-fetch': 'npm:whatwg-fetch@2.0.4/fetch.js',
'mitt': 'npm:mitt/dist/mitt.umd.js',
'rrule': 'npm:rrule@2.6.6/dist/es5/rrule.js',
'luxon': 'npm:luxon@1.25.0/build/global/luxon.min.js',
'es6-object-assign': 'npm:es6-object-assign@1.1.0',
'devextreme': 'npm:devextreme@20.2.4',
'devextreme-vue': 'npm:devextreme-vue@20.2.4',
'jszip': 'npm:jszip@3.5.0/dist/jszip.min.js',
'devextreme-quill': 'npm:devextreme-quill@0.9.7/dist/dx-quill.min.js',
'devexpress-diagram': 'npm:devexpress-diagram@2.0.5/dist/dx-diagram.js',
'devexpress-gantt': 'npm:devexpress-gantt@2.0.8/dist/dx-gantt.js',
'preact': 'npm:preact@10.5.7/dist/preact.js',
'preact/hooks': 'npm:preact@10.5.7/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
}
});