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

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