用友软件销售订单查询后，点击导出后提示Object cannot be cast from DBNull to other types.-用友T3

用友软件销售订单查询后，点击导出后提示Object cannot be cast from DBNull to other types.

销售订单查询后，点击导出后提示Object cannot be cast from DBNull to other types. 先确认补丁是不是已经打上。如果打上，留个邮箱，我发你个文档，你检查一下。

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