SqlTransaction class

Represents a Transact-SQL transaction to be made in a SQL Server database. This class cannot be inherited.

The application creates a SqlTransaction object by calling BeginTransaction on the SqlConnection object. All subsequent operations associated with the transaction are performed on the SqlTransaction object.

 

Example:

[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();
    // 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();
        }
        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();
    }
}

 

转自 http://msdn.microsoft.com/en-us/library/system.data.sqlclient.sqltransaction(v=vs.71).aspx