loadTreeDatas = async (id) => {
const datas=[{xxxx}]
return new Promise(resolve => {
treeDatas = _.map(treeDatas, data => {
if (data.key === id) {
_.assign(data, {
children: datas
});
}
return cat;
});
resolve();
return treeDatas
});
};
loadData = async (treeNode) => {
const { props: { eventKey }, children } = treeNode;
let { treeDatas } = this.state;
if (!_.isEmpty(children)) {
return;
}
treeDatas = await this.loadTreeDatas(eventKey);
this.setState({ treeDatas: treeDatas });
};
handleCheck = (value) => {
this.setState(({ checkedKeys: value }));
};
<Tree checkable
showLine
loading={loading}
treeData={treeDatas}
checkedKeys={checkedKeys}
loadData={this.loadData}
onCheck={this.handleCheck}/>
详细例子请看来源。
