DAL/help.cs

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using System;
using System.Text;
using System.Data.SqlClient;
using System.Collections.Generic;
using System.Data;
using Seven.Common;
using MySql.Data.MySqlClient;
namespace DAL
{
    public partial class help
    {

        public bool Exists(int id)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select count(1) from help");
            strSql.Append(" where ");
            strSql.Append(" id = @id  ");
            MySqlParameter[] parameters = {
					new MySqlParameter("@id",   MySqlDbType.Int16,9)
			};
            parameters[0].Value = id;

            return DbHelperMySQL.Exists(strSql.ToString(), parameters);
        }



        /// <summary>
        /// 增加一条数据
        /// </summary>
        public bool Add(MODEL.help model)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("insert into help(");
            strSql.Append("title,details,addman,addtime,orderby,classid");
            strSql.Append(") values (");
            strSql.Append("@title,@details,@addman,@addtime,@orderby,@classid");
            strSql.Append(") ");
            strSql.Append(";select @@IDENTITY");
            MySqlParameter[] parameters = {
			            new MySqlParameter("@title", MySqlDbType.VarChar,100) ,            
                        new MySqlParameter("@details", MySqlDbType.LongText) ,            
                        new MySqlParameter("@addman", MySqlDbType.VarChar,100) ,            
                        new MySqlParameter("@addtime", MySqlDbType.DateTime),
                        new MySqlParameter("@orderby",   MySqlDbType.Int16,9),
                        new MySqlParameter("@classid",   MySqlDbType.Int16,9)    
              
            };

            parameters[0].Value = model.title;
            parameters[1].Value = model.details;
            parameters[2].Value = model.addman;
            parameters[3].Value = model.addtime;
            parameters[4].Value = model.orderby;
            parameters[5].Value = model.classid;
            int rows = DbHelperMySQL.ExecuteSql(strSql.ToString(), parameters);
            if (rows > 0)
            {
                return true;