我尝试了以下这两个调用,但都返回一个异常:“Customer_ID不允许DBNull.Value”。但是当我调试时,我看到所有的记录都已分配了Customer_ID。它是我数据库表中唯一一个不可为空的定义。是什么导致了这个错误?
bulkCopy.WriteToServer(myBookingDataTable)
bulkCopy.WriteToServer(myBookingss.ToArray())
这是我的全部代码。
Using myConnection As SqlConnection = _
New SqlConnection(connectionString)
myConnection.Open()
Using bulkCopy As SqlBulkCopy = _
New SqlBulkCopy(My.Settings.ConnectionString(), SqlBulkCopyOptions.Default)
bulkCopy.DestinationTableName = "dbo.Booking"
Try
' Write from the source to the destination.
bulkCopy.WriteToServer(myBookingDataTable)
'bulkCopy.WriteToServer(myBookingss.ToArray())
Catch ex As Exception
Console.WriteLine(ex.Message)
Finally
bulkCopy.Close()
End Try
End Using