如何解决Remoting无法传输存储过程参数的问题

   在项目的开发中使用remoting，并且所有的数据请求服务都是通过remoting完成的，所以自然就在其中到了传递参数的存储过程，在业务逻辑中把参数构建好后传递到remoting服务端，在取出存储过程的参数时报错，具体错误不记得了，自己尝试了各种方法也不行，上网资讯也没有结果，最后变通了一下，问题解决了，例子如下：

以下部分为客户调用端

 1//先声明参数
 2        private const string param_guid = "@guid";
 3        private const string param_vga_treeguid = "@vgatreeguid";
 4        private const string param_mb_treeguid = "@mbtreeguid";
 5
 6        public static string getproducttypebyguid(string guid, string vgatreeid, string mbtreeid)
 7        {
 8            try
 9            {
10                int lcid = thread.currentthread.currentuiculture.lcid;
11
12                basemodel bt = new basemodel();
13
14                //构建一个哈希表，把参数依次压入
15                hashtable parames = new hashtable();
16                parames.add(param_proguid, guid);
17                parames.add(param_vga_treeguid, vgatreeid);
18                parames.add(param_mb_treeguid, mbtreeid);
19
20                //把存储过程名称和带参数的哈希表传入
21                dataaccess.database.runproceduredataset(lcid, "getproducttypebytreeid", parames, ref bt);
22
23                return bt.rows[0]["producttype"].tostring();
24            }
25            catch (exception ex)
26            {
27                commfunction.writeerrorlogfile("public static string getproducttypebyguid(stirng guid, string vgatreeid, string mbtreeid)出错：" + ex.message);
28                return "other";
29            }
30        }
31
32

以下为服务端：

 1public void query(int lcid, string sqlstring, hashtable cmdhashtable, ref basemodel basemodel)#region public void query(int lcid, string sqlstring, hashtable cmdhashtable, ref basemodel basemodel)
 2        // -------------------------------------------------------------
 3        public void query(int lcid, string sqlstring, hashtable cmdhashtable, ref basemodel basemodel)
 4        {
 5            if (!checkremotingclient())
 6            {
 7                return;
 8            }
 9            console.writeline(datetime.now.tostring() + "调用了query(" + lcid.tostring() + ", string sqlstring, hashtable cmdhashtable, ref basemodel basemodel)");
10            int i = cmdhashtable.count;
11            //以下构造存储过程参数
12            sqlparameter[] cmdparms = new sqlparameter[i];
13            int j = 0;
14            foreach (dictionaryentry de in cmdhashtable)
15            {
16                cmdparms[j] = new sqlparameter(de.key.tostring(), de.value);
17                j++;
18            }
19            colorful.dbutility.dbhelpersql.query(lcid, sqlstring, cmdparms, ref  basemodel);
20        }
21        // --------------------------------------------------------------------
22        #endregion