MVC开发中的常见错误-05-无法将类型“System.Data.Entity.Infrastructure.DbQuery”转换为“System.Collections.Generic.List”时间:2023-03-09 06:24:09 List<RoleInfo> roleInfoList = (List<RoleInfo>)ViewBag.AllRoles; 错误原因很明确了 ViewBag.AllRoles = RoleInfoService.LoadEntities(r=>r.DelFlag == DelFlag);改为 ViewBag.AllRoles = RoleInfoService.LoadEntities(r=>r.DelFlag == DelFlag).ToList();