摘要：
Private Sub btnSave_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSave.Click
Dim Dremployee As DataSet1.employeeRow
Dim Updateemployee As DataSet1.employeeDataTable
Dim Trans As SqlTransaction
If SqlCnn.State = ConnectionState.Closed Then
SqlCnn.Open()
End If
If Dst.employee.Rows.Count = 0 Then Exit Sub
Trans = SqlCnn.BeginTransaction
Try
'===事务==
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摘要：
如果你下面三个条件都正确了，还出现上面的错误，有需要的联系 qq:787388202 Email:qq787388202@yeah.net1.检查是否设有主键。 2 检查是否含有自动编号字段。3、多人并行操作也可能引发这样的异常。 阅读全文