public static string GetRolePreviledgeListByRoleId(int roleId) { var sql = "Select * from TRolePreviledge where RoleId=@RoleId"; var rolePreviledgeList = SqlHelper.GetList <RolePreviledge>(sql, new SqlParameter("@RoleId", roleId)); StringBuilder sb = new StringBuilder(); if (rolePreviledgeList.Count > 0) { foreach (var rolePreviledge in rolePreviledgeList) { sb.Append(rolePreviledge.PreviledgeId + ","); } sb.Remove(sb.Length - 1, 1); } return(sb.ToString()); }