public bool Add(Liuyan refmodel)
    {
        string SQL = "insert into liuyan(name,phone,zhiwei,gongsi,addr,country,dianyou,content,adddate)values(@name,@phone,@zhiwei,@gongsi,@addr,@country,@dianyou,@content,@adddate)";
        OleDbParameter[] parameters ={
            new OleDbParameter("@name",OleDBTyPE.VArchar),
            new OleDbParameter("@tel",OleDbType.VARChar),
            new OleDbParameter("@zhiwei",OleDbType.VarChar),
            new OleDbParameter("@gongsi",OleDbType.VarChar),
            new OleDbParameter("@addr",OleDbType.VarChar),
            new OleDbParameter("@country",OleDbType.VarChar),
            new OleDbParameter("@dianyou",OleDbType.VarChar),
            new OleDbParameter("@content",OleDbType.VarChar),
            new OleDbParameter("@adddate",OleDbType.VarChar)
        };
        parameters[0].Value=model.Xingming;
        parameters[1].Value=model.Tel;
        parameters[2].Value=model.Zhiwei;
        parameters[3].Value=model.Gongsi;
        parameters[4].Value=model.Addr;
        parameters[5].Value=model.Country;
        parameters[6].Value=model.Dianyou;
        parameters[7].Value=model.Content;
        parameters[8].Value=model.Adddate;
        return sqlHelper.executeCommand(sql, parameters);
    }
 

　　　parameters[0].Value=model.Xingming;
        parameters[1].Value=model.Tel;
        parameters[2].Value=model.Zhiwei;
        parameters[3].Value=model.Gongsi;
        parameters[4].Value=model.Addr;
        parameters[5].Value=model.Country;
        parameters[6].Value=model.Dianyou;
        parameters[7].Value=model.Content;
        parameters[8].Value=model.Adddate;

　　　　
//使用反射记得引用using System.Reflection;命名空间

　　　　 Type t = refmodel.GetType();
       for (int i = 0; i < t.GetPRoperties().Length; i++)
        {
            parameters[i].Value= t.GetProperties()[i].GetValue(refmodel, null);
        }