如何合并并获得2个数据表之间的差异

Question

我们创建了一个合并 2 个数据的函数table。

这是代码

    Public Shared Function CompareTwoDataTable(ByVal dt1 As DataTable, ByVal dt2 As DataTable) As DataTable
    dt1.Merge(dt2)
    Dim d3 As DataTable = dt2.GetChanges()
    Return d3
End Function

我想知道代码是否不正确或什么，我的意思是我想确定这 2 个 table 之间的区别并找出它们的区别。

提前致谢

Answer 1

对于那些看到这个的人，这是我想出的代码

我创建了一个函数，使用它们的 ID 比较 2 个数据表

Public Shared Function CompareTwoDataTable(ByVal dt1 As DataTable, ByVal dt2 As DataTable) As DataTable Dim rows_to_remove As New List(Of DataRow)() For Each row1 As DataRow In dt1.Rows For Each row2 As DataRow In dt2.Rows If row1("ID").ToString() = row2("ID").ToString() Then rows_to_remove.Add(row1) End If Next Next For Each row As DataRow In rows_to_remove dt1.Rows.Remove(row) dt1.AcceptChanges() Next Dim d3 As DataTable = dt1 Return d3 End Function

希望对您有所帮助

如何合并并获得2个数据表之间的差异

HOW to merge and get the difference between 2 datatable

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