/// <summary>
 /// 得到一个对象实体
 /// </summary>
 public PermissionSystem.Model.PermissionType DataRowToModel(DataRow row)
 {
     PermissionSystem.Model.PermissionType model=new PermissionSystem.Model.PermissionType();
     if (row != null)
     {
         if(row["permission_type_id"]!=null && row["permission_type_id"].ToString()!="")
         {
             model.permission_type_id=long.Parse(row["permission_type_id"].ToString());
         }
         if(row["permission_type_value"]!=null)
         {
             model.permission_type_value=row["permission_type_value"].ToString();
         }
         if(row["permission_type_name"]!=null)
         {
             model.permission_type_name=row["permission_type_name"].ToString();
         }
         if(row["description"]!=null)
         {
             model.description=row["description"].ToString();
         }
     }
     return model;
 }
        /// <summary>
        /// 得到一个对象实体
        /// </summary>
        public PermissionSystem.Model.PermissionType GetModel(long permission_type_id)
        {
            StringBuilder strSql=new StringBuilder();
            strSql.Append("select  top 1 permission_type_id,permission_type_value,permission_type_name,description from PermissionType ");
            strSql.Append(" where permission_type_id=@permission_type_id");
            SqlParameter[] parameters = {
                    new SqlParameter("@permission_type_id", SqlDbType.BigInt)
            };
            parameters[0].Value = permission_type_id;

            PermissionSystem.Model.PermissionType model=new PermissionSystem.Model.PermissionType();
            DataSet ds=DbHelperSQL.Query(strSql.ToString(),parameters);
            if(ds.Tables[0].Rows.Count>0)
            {
                return DataRowToModel(ds.Tables[0].Rows[0]);
            }
            else
            {
                return null;
            }
        }