用vue+antdv写一个双向树结构的穿梭框
时间: 2024-03-20 19:42:14 浏览: 16
好的,以下是代码示例:
首先,需要安装 `antdv` 和 `vue` 两个依赖包:
```bash
npm install ant-design-vue vue --save
```
然后,在组件中引入依赖:
```javascript
import { Tree, Transfer } from 'ant-design-vue';
import { TreeNode } from 'ant-design-vue/types/tree';
export default {
components: { Tree, Transfer },
data() {
return {
// 左侧树结构数据
leftTreeData: [],
// 右侧树结构数据
rightTreeData: [],
// 穿梭框的数据源
transferData: [],
// 已选中的节点
selectedKeys: [],
// 已选中的节点的父节点key值
parentKeys: [],
// 是否展开所有节点
autoExpandParent: true,
};
},
methods: {
// 初始化左侧树结构数据
initLeftTreeData() {
// TODO: 获取左侧树结构数据
},
// 初始化右侧树结构数据
initRightTreeData() {
// TODO: 获取右侧树结构数据
},
// 将左侧树结构数据转换为穿梭框的数据源
convertDataToTransferData(data: TreeNode[], parentKey: string) {
data.forEach((item: TreeNode) => {
const key = parentKey ? `${parentKey}-${item.key}` : item.key;
this.transferData.push({
key,
title: item.title,
disabled: item.isLeaf,
});
if (item.children && item.children.length > 0) {
this.convertDataToTransferData(item.children, key);
}
});
},
// 穿梭框选中项变化时的回调函数
handleTransferChange(targetKeys: string[], direction: string, moveKeys: string[]) {
if (direction === 'right') {
// 将选中项添加到右侧树结构数据中
const selectedNodes = moveKeys.map((key) => {
const node = this.findNodeByKey(this.leftTreeData, key);
return {
key: node.key,
title: node.title,
children: node.children,
};
});
this.rightTreeData = this.rightTreeData.concat(selectedNodes);
} else if (direction === 'left') {
// 将选中项从右侧树结构数据中移除
this.rightTreeData = this.rightTreeData.filter((node) => {
return !moveKeys.includes(node.key);
});
}
},
// 查找树结构中指定key的节点
findNodeByKey(data: TreeNode[], key: string): TreeNode {
let node: TreeNode | undefined;
data.forEach((item: TreeNode) => {
if (item.key === key) {
node = item;
return;
} else if (item.children && item.children.length > 0) {
const result = this.findNodeByKey(item.children, key);
if (result) {
node = result;
return;
}
}
});
return node;
},
// 左侧树结构节点选中状态变化时的回调函数
handleLeftTreeSelect(selectedKeys: string[], e: MouseEvent & { selected: boolean; key: string }) {
this.selectedKeys = selectedKeys;
this.parentKeys = [];
selectedKeys.forEach((key) => {
const node = this.findNodeByKey(this.leftTreeData, key);
if (node) {
this.parentKeys.push(node.key.split('-')[0]);
}
});
},
// 左侧树结构节点展开/折叠状态变化时的回调函数
handleLeftTreeExpand(expandedKeys: string[]) {
this.autoExpandParent = false;
},
},
created() {
this.initLeftTreeData();
this.initRightTreeData();
},
mounted() {
this.convertDataToTransferData(this.leftTreeData, '');
},
render() {
return (
<div>
<div>
<div>左侧树结构:</div>
<Tree
treeData={this.leftTreeData}
selectedKeys={this.selectedKeys}
parentKeys={this.parentKeys}
autoExpandParent={this.autoExpandParent}
onSelect={this.handleLeftTreeSelect}
onExpand={this.handleLeftTreeExpand}
/>
</div>
<div>
<div>穿梭框:</div>
<Transfer
dataSource={this.transferData}
targetKeys={this.rightTreeData.map((node) => node.key)}
onChange={this.handleTransferChange}
render={(item) => item.title}
/>
</div>
<div>
<div>右侧树结构:</div>
<Tree treeData={this.rightTreeData} />
</div>
</div>
);
},
};
```
以上代码仅供参考,具体实现方式还需根据具体业务场景进行调整。