vue3 typescript navie ui 构建treeselect 待搜索框
时间: 2024-10-09 09:01:59 浏览: 71
在Vue 3 和 TypeScript 中使用 Naive UI 构建 Treeselect(基于树的选择控件)并且添加待搜索框,你可以按照以下步骤操作:
1. 安装依赖:
首先确保已经安装了 Vue、Naive UI 的 TypeScript 版本和 Vue Router(如果需要路由功能)。
```sh
npm install vue@next vue-router naive-ui @naiveui/vue @types/vuex @types/react-dom @types/node
```
2. 创建项目结构:
创建一个名为`components`的文件夹,分别存放`Treeselect.vue`(选择组件)、`SearchBox.vue`(搜索框组件)和`App.vue`(主入口)。
3. 导航组件 (`Treeselect.vue`):
```typescript
<template>
<n-tree-select v-model="selectedValue" :data="options" @input="handleSelectChange">
<!-- 树节点配置 -->
</n-tree-select>
</template>
<script lang="ts">
import { defineComponent, Prop, Ref } from "vue";
import { NTreeSelect } from "@naiveui/vue";
interface Option {
value: string;
label: string;
children?: Array<Option>;
}
export default defineComponent({
components: {
NTreeSelect,
},
props: {
selectedValue: {
type: String,
default: "",
},
options: {
type: Array as unknown as Array<Option>,
required: true,
},
},
methods: {
handleSelectChange(value: string | null) {
this.$emit("input", value);
},
},
});
</script>
```
4. 搜索框组件 (`SearchBox.vue"):
```typescript
<template>
<div class="search-box">
<input
ref="searchInput"
type="text"
v-model="searchQuery"
@keyup.enter="search"
/>
<button @click="search">搜索</button>
</div>
</template>
<script lang="ts">
import { defineComponent, Ref } from "vue";
export default defineComponent({
props: {
searchQuery: {
type: String,
default: "",
},
},
methods: {
search() {
const filteredOptions = this.options.filter((option) =>
option.label.toLowerCase().includes(this.searchQuery.toLowerCase())
);
// 更新 Treeselect 的选项数据
this.$parent.options = filteredOptions;
},
},
});
</script>
```
5. 主入口 (`App.vue"):
```typescript
<template>
<div>
<SearchBox v-model="searchQuery" :options="filteredOptions"/>
<Treeselect v-model="selectedValue" :options="filteredOptions" />
</div>
</template>
<script lang="ts">
import { reactive } from "vue";
import SearchBox from "@/components/SearchBox.vue";
import Treeselect from "@/components/Treeselect.vue";
export default {
components: {
SearchBox,
Treeselect,
},
setup() {
const searchQuery = reactive("");
const filteredOptions = reactive([]); // 初始空数组
// 赋值给 Treeselect 组件
const options = () => {
return someInitialOptions; // 获取初始数据源
};
// 当搜索查询改变时,更新过滤后的选项
watch(searchQuery, (newQuery) => {
filteredOptions.value = options().filter((option) =>
option.label.toLowerCase().includes(newQuery.toLowerCase())
);
});
// 监听 Treeselect 的变化事件
watch(() => {
return Treeselect.selectedValue;
}, (newValue) => {
// 更新全局 selectedValue
});
return { searchQuery, filteredOptions };
},
};
</script>
```
在这个例子中,`Treeselect` 组件通过 `v-model` 绑定搜索结果,`SearchBox` 控制输入框的搜索功能,并将搜索结果传递给 `Treeselect`。
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