<template> <DocSectionText v-bind="$attrs"> <p>Selection of multiple nodes via checkboxes is enabled by configuring <i>selectionMode</i> as <i>checkbox</i>.</p> <p> In checkbox selection mode, value binding should be a key-value pair where key (or the dataKey) is the node key and value is an object that has <i>checked</i> and <i>partialChecked</i> properties to represent the checked state of a node. </p> </DocSectionText> <DocSectionCode :code="introCode" hideToggleCode importCode hideStackBlitz /> <DeferredDemo @load="loadDemoData"> <div class="card"> <TreeTable v-model:selectionKeys="selectedKey" :value="nodes" selectionMode="checkbox"> <Column field="name" header="Name" expander></Column> <Column field="size" header="Size"></Column> <Column field="type" header="Type"></Column> </TreeTable> </div> </DeferredDemo> <DocSectionCode :code="code" :service="['NodeService']" /> </template> <script> import { NodeService } from '@/service/NodeService'; export default { data() { return { nodes: null, selectedKey: null, introCode: { basic: ` { '0-0': { partialChecked: false, checked: true } } ` }, code: { basic: ` <TreeTable v-model:selectionKeys="selectedKey" :value="nodes" selectionMode="checkbox"> <Column field="name" header="Name" expander></Column> <Column field="size" header="Size"></Column> <Column field="type" header="Type"></Column> </TreeTable> `, options: ` <template> <div class="card"> <TreeTable v-model:selectionKeys="selectedKey" :value="nodes" selectionMode="checkbox"> <Column field="name" header="Name" expander></Column> <Column field="size" header="Size"></Column> <Column field="type" header="Type"></Column> </TreeTable> </div> </template> <script> import { NodeService } from '@/service/NodeService'; export default { data() { return { nodes: null, selectedKey: null } }, mounted() { NodeService.getTreeTableNodes().then((data) => (this.nodes = data)); } } <\/script> `, composition: ` <template> <div class="card"> <TreeTable v-model:selectionKeys="selectedKey" :value="nodes" selectionMode="checkbox"> <Column field="name" header="Name" expander></Column> <Column field="size" header="Size"></Column> <Column field="type" header="Type"></Column> </TreeTable> </div> </template> <script setup> import { ref, onMounted } from 'vue'; import { NodeService } from '@/service/NodeService'; onMounted(() => { NodeService.getTreeTableNodes().then((data) => (nodes.value = data)); }); const nodes = ref(); const selectedKey = ref(); <\/script> `, data: ` { key: '0', label: 'Documents', data: 'Documents Folder', icon: 'pi pi-fw pi-inbox', children: [ { key: '0-0', label: 'Work', data: 'Work Folder', icon: 'pi pi-fw pi-cog', children: [ { key: '0-0-0', label: 'Expenses.doc', icon: 'pi pi-fw pi-file', data: 'Expenses Document' }, { key: '0-0-1', label: 'Resume.doc', icon: 'pi pi-fw pi-file', data: 'Resume Document' } ] }, { key: '0-1', label: 'Home', data: 'Home Folder', icon: 'pi pi-fw pi-home', children: [{ key: '0-1-0', label: 'Invoices.txt', icon: 'pi pi-fw pi-file', data: 'Invoices for this month' }] } ] }, ... ` } }; }, methods: { loadDemoData() { NodeService.getTreeTableNodes().then((data) => (this.nodes = data)); } } }; </script>