SQLServerDAL/City.cs

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

using WMPT.Model;
using WMPT.DBUtility;
using System.Data.SqlClient;
using System.Data;

namespace WMPT.SQLServerDAL
{
	/// <summary>
	/// 城市数据
	/// </summary>
	public class City
	{
        /// <summary>
        /// 增加一条数据
        /// </summary>
        public int Add(CityInfo model)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("insert into City(");
            strSql.Append("cname,site,url,adddate,ReveInt,ReveVar,lat,lng");
            strSql.Append(") values (");
            strSql.Append("@cname,@site,@url,@adddate,@ReveInt,@ReveVar,@lat,@lng");
            strSql.Append(") ");
            strSql.Append(";select @@IDENTITY");
            SqlParameter[] parameters = 
			{
			        new SqlParameter("@cname", SqlDbType.VarChar,50) ,            
                    new SqlParameter("@site", SqlDbType.VarChar,50) ,            
                    new SqlParameter("@url", SqlDbType.VarChar,256) ,            
                    new SqlParameter("@adddate", SqlDbType.DateTime) ,            
                    new SqlParameter("@ReveInt", SqlDbType.Int,4) ,            
                    new SqlParameter("@ReveVar", SqlDbType.VarChar,256) ,            
                    new SqlParameter("@lat", SqlDbType.VarChar,50) ,            
                    new SqlParameter("@lng", SqlDbType.VarChar,50)             
              
            };

            parameters[0].Value = model.cname;
            parameters[1].Value = model.site;
            parameters[2].Value = model.url;
            parameters[3].Value = model.adddate;
            parameters[4].Value = model.ReveInt;
            parameters[5].Value = model.ReveVar;
            parameters[6].Value = model.Lat;
            parameters[7].Value = model.Lng;
            return HJConvert.ToInt32(SQLHelper.ExecuteScalar(CommandType.Text, strSql.ToString(), parameters));
        }


        /// <summary>
        /// 更新一条数据
        /// </summary>
        public int Update(CityInfo model)
        {
            StringBuilder strSql = new StringBuilder();