在数据库连接上创建事务处理对象，然后调用事务处理对象来提交事务或回滚事务。简单的代码：

PRivate void button1_Click(object sender, System.EventArgs e)

{

SqlConnection conn = new SqlConnection("Data Source=192.168.2.200;uid=sa; passWord=;database = HaierHR");

conn.Open();

//启用事务

SqlTransaction tran = conn.BeginTransaction();

SqlCommand cmd = new SqlCommand();

cmd.Connection = conn;

cmd.Transaction = tran;

try

{

cmd.CommandText = "UPDATE HRRollMain Set TotalMember=TotalMember-100 WHERE RollID = '2005070101'";

cmd.ExecuteNonQuery();

cmd.CommandText = "UPDATE HRRollSum Set TotalSumMember=TotalSumMember+100 WHERE RollSumID = '20050701'";

cmd.ExecuteNonQuery();

tran.Commit();

MessageBox.Show("事务提交成功!");

}

catch(Exception ex)

{

tran.Rollback();

MessageBox.Show("Error!"+ex.Message);

}

}

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