asp.net 事务回滚

      

         string getTitle =  this.TextBox1.Text;
         string getAuthor =  this.TextBox2.Text;
         string sql =  " insert into 表(title,author) values (' " + getTitle +  " ',' " + getAuthor +  " '); select @@identity AS RID ";

 

       //string sql = "insert into DepartMent(DepartMentName,DepartMentCode) values ('" + getName + "','" + getCode + "');insert into DepartMent(ID,DepartMentName) values ('"+ @@identity +"','新部门测试')";
         string connStr = System.Configuration.ConfigurationManager.AppSettings[ " fff "].ToString();

        SqlConnection myconn =  new SqlConnection(connStr);
        SqlCommand mycomm =  new SqlCommand(sql,myconn);
        myconn.Open();
        SqlTransaction myTrans = myconn.BeginTransaction();
        mycomm.Transaction = myTrans;

         try
        {
            mycomm.ExecuteNonQuery();
            myTrans.Commit();
        }
         catch
        {
            myTrans.Rollback();
        }
         finally
        {
            myconn.Close();
        }