2022-09-09 20:41:18 +00:00
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<template>
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<div>
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2022-12-19 11:57:07 +00:00
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<Head>
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<Title>Vue Tree Component</Title>
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<Meta name="description" content="Tree is used to display hierarchical data." />
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</Head>
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2022-09-09 20:41:18 +00:00
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<div class="content-section introduction">
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<div class="feature-intro">
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<h1>Tree</h1>
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<p>Tree is used to display hierarchical data.</p>
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</div>
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<AppDemoActions />
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</div>
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<div class="content-section implementation">
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<div class="card">
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<h5>Basic</h5>
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<Tree :value="nodes"></Tree>
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<h5>Programmatic Control</h5>
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<div style="margin-bottom: 1em">
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<Button type="button" icon="pi pi-plus" label="Expand All" @click="expandAll" />
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<Button type="button" icon="pi pi-minus" label="Collapse All" @click="collapseAll" />
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</div>
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<Tree :value="nodes" :expandedKeys="expandedKeys"></Tree>
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</div>
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</div>
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<TreeDoc />
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</div>
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</template>
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<script>
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import NodeService from '../../service/NodeService';
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import TreeDoc from './TreeDoc';
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export default {
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data() {
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return {
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nodes: null,
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expandedKeys: {}
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};
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},
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nodeService: null,
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created() {
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this.nodeService = new NodeService();
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},
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mounted() {
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this.nodeService.getTreeNodes().then((data) => (this.nodes = data));
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},
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methods: {
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expandAll() {
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for (let node of this.nodes) {
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this.expandNode(node);
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}
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this.expandedKeys = { ...this.expandedKeys };
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},
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collapseAll() {
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this.expandedKeys = {};
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},
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expandNode(node) {
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if (node.children && node.children.length) {
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this.expandedKeys[node.key] = true;
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for (let child of node.children) {
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this.expandNode(child);
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}
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}
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}
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},
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components: {
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TreeDoc: TreeDoc
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}
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};
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</script>
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<style scoped>
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button {
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margin-right: 0.5rem;
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}
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</style>
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