我有一些代码正在做这样的事情（请注意，实际代码要复杂得多）。我制作了这个来帮助解释：

Imports System.Data.SqlClient
Imports System.Transactions

Public Class Form1
    Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

        Using scope As New TransactionScope
            Try
                Dim objCon As SqlConnection = New SqlConnection("Connection string 1")
                Dim objCon2 As SqlConnection = New SqlConnection("Connection string 2")
                objCon2.Open()
                Using objCon2
                    Dim t1 As New Test
                    t1.Test()
                    objCon.Open()
                End Using
            Catch ex As Exception
              'I do not swallow exceptions
            End Try
        End Using
    End Sub
End Class

Public Class Test
    Public Sub Test()
        Dim objCon1 As SqlConnection = New SqlConnection("Connection string 1")
        objCon1.Open()
    End Sub
End Class

上面的代码显示我正在连接事务内部的两个数据库（其中一个连接到两次）。以下是例外：FormLoad错误：System. Transactions.TransactionException：合作伙伴事务管理器已禁用其对远程/网络事务的支持。（来自HRESULT的异常：0x8004D025）。