VB.NET 中啓動ADO.NET事務，實現對數據庫操作的整體性。

示例
[Visual Basic, C#] 下面的示例創建一個 SqlConnection 和一個 SqlTransaction。它還演示如何使用 BeginTransaction、Commit 和 Rollback 方法。
[Visual Basic, C#] 注意   此示例顯示如何使用 BeginTransaction 的一個重載版本。有關其他可用示例，請參閱單獨的重載主題。
[Visual Basic]
Public Sub RunSqlTransaction(myConnString As String)
    Dim myConnection As New SqlConnection(myConnString)
    myConnection.Open()
   
    Dim myCommand As SqlCommand = myConnection.CreateCommand()
    Dim myTrans As SqlTransaction
   
    ' Start a local transaction
    myTrans = myConnection.BeginTransaction(IsolationLevel.ReadCommitted, "SampleTransaction")
    ' Must assign both transaction object and connection
    ' to Command object for a pending local transaction
    myCommand.Connection = myConnection
    myCommand.Transaction = myTrans

    Try
      myCommand.CommandText = "Insert into Region (RegionID, RegionDescription) VALUES (100, 'Description')"
      myCommand.ExecuteNonQuery()
      myCommand.CommandText = "Insert into Region (RegionID, RegionDescription) VALUES (101, 'Description')"
      myCommand.ExecuteNonQuery()
      myTrans.Commit()
      Console.WriteLine("Both records are written to database.")
    Catch e As Exception
      Try
        myTrans.Rollback("SampleTransaction")
      Catch ex As SqlException
        If Not myTrans.Connection Is Nothing Then
          Console.WriteLine("An exception of type " & ex.GetType().ToString() & _
                            " was encountered while attempting to roll back the transaction.")
        End If
      End Try
   
      Console.WriteLine("An exception of type " & e.GetType().ToString() & _
                      "was encountered while inserting the data.")
      Console.WriteLine("Neither record was written to database.")
    Finally
      myConnection.Close()
    End Try
End Sub 'RunSqlTransaction
[C#]
public void RunSqlTransaction(string myConnString)
 {
    SqlConnection myConnection = new SqlConnection(myConnString);
    myConnection.Open();

    SqlCommand myCommand = myConnection.CreateCommand();
    SqlTransaction myTrans;

    // Start a local transaction
    myTrans = myConnection.BeginTransaction(IsolationLevel.ReadCommitted,"SampleTransaction");
    // Must assign both transaction object and connection
    // to Command object for a pending local transaction
    myCommand.Connection = myConnection;
    myCommand.Transaction = myTrans;

    try
    {
      myCommand.CommandText = "Insert into Region (RegionID, RegionDescription) VALUES (100, 'Description')";
      myCommand.ExecuteNonQuery();
      myCommand.CommandText = "Insert into Region (RegionID, RegionDescription) VALUES (101, 'Description')";
      myCommand.ExecuteNonQuery();
      myTrans.Commit();
      Console.WriteLine("Both records are written to database.");
    }
    catch(Exception e)
    {
      try
      {
        myTrans.Rollback("SampleTransaction");
      }
      catch (SqlException ex)
      {
        if (myTrans.Connection != null)
        {
          Console.WriteLine("An exception of type " + ex.GetType() +
                            " was encountered while attempting to roll back the transaction.");
        }
      }
   
      Console.WriteLine("An exception of type " + e.GetType() +
                        " was encountered while inserting the data.");
      Console.WriteLine("Neither record was written to database.");
    }
    finally
    {
      myConnection.Close();
    }
}