tree-select TreeNode props 在设置checkbox模式的时候，每个节点没有checkd属性可以控制是否被选中

[875817196]

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What problem does this feature solve?

有个实际案例，在一个省市区的选择当时，需要在选中广州市的时候，设置广州市下的区全部不可选且不被选中，不可选可以通过TreeNode props 里的diabled属性实现，但是节点是否可选没有提供对应的属性

What does the proposed API look like?

希望在TreeNode props里能够新增一个checked属性控制节点的是否选中

[875817196]

现在的问题是会出现，当我选中广州市下的天河区后，在单独选广州市，希望的结果是广州市下的所有区不可选且不被选中，但现在的结果是天河区依旧被选中，但不可选

[875817196]

[coolwehon]

或许你可以通过控制与该TreeSelect绑定的数据进行控制，将广州市下的子节点清空后，再进行设置不可选中的操作

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