数据访问层开启事务

多表删除的一个例子:

public int DeleteContractData(long ContractID)
        {
            string delContractInfo = @"UPDATE ContractInfo SET DelFlag=1 WHERE ContractID=@ContractID";

            //数据库连接属性 引用using System.Data.SqlClient;
            using (SqlConnection IDbCon = new SqlConnection(ConfigureHelp.Connection))
            {
                //数据库连接
                IDbCon.Open();
                //开启事务。需引用using System.Data;
                IDbTransaction _tran = IDbCon.BeginTransaction();
                try
                {
                    //在参数后面放入 事务参数
                    int delCI = IDbCon.Execute(delContractInfo, new { @ContractID = ContractID }, _tran);
                    if (delCI > 0)
                    {
                        //事务提交
                        _tran.Commit();
                        return 1;
                    }
                    else
                    {
                        //操作失败、事务回滚
                        _tran.Rollback();
                        return 0;
                    }
                }
                catch (Exception ex)
                {
                    _tran.Rollback();
                    UtilityHelp.WriteLog(ex, ex.ToString());
                    return -1;
                }
            }
        }