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关于elementui tree 拖拽的问题

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关于elementui tree 拖拽的问题

比如我拖拽之后,node-drag-over事件结束后,我调用接口,接口返回错误信息,禁止拖拽到当前节点,怎么把当前节点返回到原来的位置
我知道allow-drag能判断能否拖拽,但是我想把能否拖拽给后台去做

el-tree


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