使用transaction处理存储数据

        SqlConnection s1 = new SqlConnection(WebConfigurationManager.ConnectionStrings["sqlconnstring_t1"].ConnectionString);
        SqlConnection s2 = new SqlConnection(WebConfigurationManager.ConnectionStrings["sqlconnstring_t2"].ConnectionString);

        string queryString1 = string.Empty;
        string queryString2 = string.Empty;
        queryString1 = string.Format(" insert into t1(name,pwd,email) values('{0}','{1}','{2}') ",this.TextBox1.Text,this.TextBox2.Text,this.TextBox3.Text);
        queryString2 = string.Format(" insert into t2(name,state) values('{0}','{1}') ",this.TextBox4.Text,this.TextBox5.Text);
        
        SqlCommand sc1 = new SqlCommand(queryString1,s1);        
        SqlCommand sc2 = new SqlCommand(queryString2, s2);

        s1.Open();
        SqlTransaction sqlTran1 = s1.BeginTransaction();
        s2.Open();
        SqlTransaction sqlTran2 = s2.BeginTransaction();

        using (TransactionScope transScope = new TransactionScope())//可以不使用此引用
        {
            try
            {
                sc1.Transaction = sqlTran1;
                sc1.ExecuteScalar();

                sc2.Transaction = sqlTran2;
                sc2.ExecuteScalar();
            }
            catch(SqlException ex)
            {
                sqlTran1.Rollback();
                sqlTran2.Rollback();
                s1.Close();//如果不增加数据库事务，连接关闭时，数据会写入数据库
                s2.Close();
                return;
            }
            sqlTran1.Commit();
            sqlTran2.Commit();    
            transScope.Complete();
            s1.Close();
            s2.Close();
        }
    }

}