filesystem:1 Uncaught (in promise) DOMException: The requested file could not be read, typically due to permission problems that have occurred after a reference to a file was acquired. Note that if ...

In Form component item when we call updateData and the field which we update use's render method the render doesn't called but the value correctly change's ...

看msdn说updatedate好像是调用dodataexchange(),但是我不知道具体怎么样更新数据，高手能举个具体的例子吗？ 因为我把UpdateData()注释以后好像程序没有变化。