已知现在有一个树形控件,请帮我用react+typescript+Ant Design+umi的开发框架实现可以被树形控件引入复用的搜索树的搜索框
时间: 2024-01-03 18:05:18 浏览: 93
好的,我可以帮您实现。我们将创建一个可复用的搜索框组件,它可以被其他树形控件引入使用。以下是一个简单的实现示例:
```tsx
import React from "react";
import { Input } from "antd";
const { Search } = Input;
interface SearchBoxProps {
onSearch: (value: string) => void;
}
const SearchBox: React.FC<SearchBoxProps> = ({ onSearch }) => {
// 搜索框onChange事件
const handleSearch = (value: string) => {
onSearch(value);
};
return (
<div>
<Search
placeholder="Search"
onSearch={handleSearch}
style={{ width: 200 }}
/>
</div>
);
};
export default SearchBox;
```
我们可以使用以上组件,将onSearch回调函数传入SearchBox组件中,当搜索框值发生变化时,调用onSearch回调函数进行搜索。以下是一个树形控件如何引入SearchBox组件并进行搜索的示例:
```tsx
import React, { useState } from "react";
import { Tree, message } from "antd";
import { DataNode } from "antd/lib/tree";
import SearchBox from "./SearchBox";
interface SearchableTreeProps {
treeData: DataNode[];
}
const SearchableTree: React.FC<SearchableTreeProps> = ({ treeData }) => {
const [expandedKeys, setExpandedKeys] = useState<string[]>([]);
const [searchValue, setSearchValue] = useState<string>("");
// 递归过滤树节点
const filterTree = (tree: DataNode[], searchValue: string): DataNode[] => {
return tree
.filter((node) => node.title?.includes(searchValue))
.map((node) => ({
...node,
children: node.children ? filterTree(node.children, searchValue) : null,
}));
};
// 搜索框onChange事件
const handleSearch = (value: string) => {
const expandedKeys = treeData
.map((node) => {
if (node.title?.includes(value)) {
return node.key;
}
if (node.children) {
return filterTree(node.children, value).map((child) => child.key);
}
return null;
})
.flat()
.filter((key) => key) as string[];
setExpandedKeys(expandedKeys);
setSearchValue(value);
};
// 树节点展开事件
const handleExpand = (expandedKeys: string[]) => {
setExpandedKeys(expandedKeys);
};
return (
<div>
<SearchBox onSearch={handleSearch} />
<Tree
treeData={filterTree(treeData, searchValue)}
expandedKeys={expandedKeys}
onExpand={handleExpand}
onSelect={(keys) => message.success(keys.join(","))}
/>
</div>
);
};
export default SearchableTree;
```
我们可以看到,在SearchableTree组件中,我们将SearchBox组件引入,并将handleSearch回调函数传入SearchBox组件中,当搜索框值发生变化时,调用handleSearch回调函数进行搜索。
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