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74 lines
1.5 KiB
74 lines
1.5 KiB
<docs>
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---
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order: 9
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title:
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zh-CN: 虚拟滚动
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en-US: Virtual scroll
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---
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## zh-CN
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使用 `height` 属性则切换为虚拟滚动。
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## en-US
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Use virtual list through `height` prop.
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</docs>
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<template>
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<a-tree-select
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v-model:value="checkedKeys"
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style="width: 100%"
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tree-checkable
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tree-default-expand-all
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:show-checked-strategy="SHOW_PARENT"
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:height="233"
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:tree-data="treeData"
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:max-tag-count="10"
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>
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<template #title="{ title, value }">
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<span v-if="value === '0-0-1-0'" style="color: #1890ff">{{ title }}</span>
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<template v-else>{{ title }}</template>
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</template>
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</a-tree-select>
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</template>
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<script lang="ts">
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import type { TreeSelectProps } from 'ant-design-vue';
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import { TreeSelect } from 'ant-design-vue';
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import { defineComponent, ref, watch } from 'vue';
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const SHOW_PARENT = TreeSelect.SHOW_PARENT;
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function dig(path = '0', level = 3) {
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const list: TreeSelectProps['treeData'] = [];
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for (let i = 0; i < 10; i += 1) {
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const value = `${path}-${i}`;
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const treeNode: TreeSelectProps['treeData'][number] = {
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title: value,
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value,
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};
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if (level > 0) {
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treeNode.children = dig(value, level - 1);
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}
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list.push(treeNode);
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}
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return list;
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}
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export default defineComponent({
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setup() {
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const checkedKeys = ref<string[]>(['0-0-0', '0-0-1']);
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watch(checkedKeys, () => {
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console.log('checkedKeys', checkedKeys);
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});
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return {
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treeData: dig(),
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checkedKeys,
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SHOW_PARENT,
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};
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},
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});
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</script>
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