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我有一个 ListView 绑定到 List,listview 的一列有 cellTemplate 和 dataTemplate 包含一个文本框。我希望在文本框失去焦点时调用一个事件,它比较文本框的先前值和新值(如果用户已更改),如果新值更大,则显示警告,
查看 ExceptionValidationRule
ExceptionValidationRule 类
自定义数据显示