在使用Asp.Net Core MVC寫程序時，對用戶類型做了如下定義：

namespace ManufacturingExecutionSystemCore.Enums {public enum UserType{[Description("無身份人員")][Display(Name = "無身份人員")]UnidentifiedPerson=0x00,[Description("生產(chǎn)人員")][Display(Name = "生產(chǎn)人員")]ProductionWorker = 0x01,[Description("生產(chǎn)主管")][Display(Name = "生產(chǎn)主管")]ProductionHead =0x02,[Description("生產(chǎn)經(jīng)理")][Display(Name = "生產(chǎn)經(jīng)理")]ProductionManager = 0x04,[Description("倉庫人員")][Display(Name = "倉庫人員")]WarehouseWorker = 0x08,[Description("倉庫主管")][Display(Name = "倉庫主管")]WarehouseHead =0x10,[Description("倉庫經(jīng)理")][Display(Name = "倉庫經(jīng)理")]WarehouseManager = 0x20,[Description("質(zhì)檢人員")][Display(Name = "質(zhì)檢人員")]QualityCheckWorker =0x40,[Description("質(zhì)檢主管")][Display(Name = "質(zhì)檢主管")]QualityCheckHead = 0x80,[Description("質(zhì)檢經(jīng)理")][Display(Name = "質(zhì)檢經(jīng)理")]QualityCheckManager =0x100,} }

在寫Razor時，使用

<select asp-for="UserType" class="form-control" asp-items="@Html.GetEnumSelectList<UserType>()"></select>

運行時發(fā)現(xiàn)報錯：

An unhandled exception occurred while processing the request. ArgumentException: The type 'ManufacturingExecutionSystemCore.Enums.UserType' is not supported. Type must be an enum that does not have an associated FlagsAttribute. (Parameter 'TEnum') Microsoft.AspNetCore.Mvc.ViewFeatures.HtmlHelper.GetEnumSelectList<TEnum>()

為記錄Html.GetEnumSelectList<UserType>()不支持FlagsAttribute標識的Enum，特作此記錄。

如果各位有其他方法可以共同討論。

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