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antd tree scrollTo 不起作用

萧成文
2023-12-01

前提需要给Tree组件设置height属性,设置虚拟滚动容器高度,这样scrollTo才能够起作用

其次,scrollTo的key值需要是已经展开的节点,所以需要提前将scroll中key值对应的节点展开

对应代码如下:

import { Tree, Button } from "antd";
import React, { useState, useRef, useEffect } from "react";

function dig(path = "0", level = 3) {
  const list = [];
  for (let i = 0; i < 12; i += 1) {
    const key = `${path}-${i}`;
    const treeNode = {
      title: key,
      key,
    };

    if (level > 0) {
      treeNode.children = dig(key, level - 1);
    }

    list.push(treeNode);
  }
  return list;
}

const treeData = dig();
export default function TreeCom() {
  const treeRef = useRef();
  const [activeProduct, setActiveProduct] = useState({
    key: "0-1",
  });
  const [expandedKeys, setExpandedKeys] = useState(["0-11-1-0", "0-0-1"]);

  const expand = (params) => {
    // setExpandedKeys(params);
    console.log("params:", params);
  };
  useEffect(() => {
    treeRef.current.scrollTo({ key: "0-11-1-0" });
  }, []);
  return (
    <>
      <Button
        onClick={() => {
          setExpandedKeys(["0-10", "0-10-0"]);
          treeRef.current.scrollTo({ key: "0-10-0-11" });
        }}
      >
        Scroll To
      </Button>

      <Tree
        ref={treeRef}
        treeData={treeData}
        expandedKeys={expandedKeys}
        height={321}
        onExpand={expand}
      />
    </>
  );
}

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