问题描述

我正在尝试使用 Razor 视图中的标签助手在 ASP.NET MVC Core 中创建一个带有枚举属性的下拉列表:

I'm trying to create a dropdown list with an enum property in ASP.NET MVC Core using the tag helper in a Razor view:

这是模型:

public class PersonalMember : Member
{
    [Required, Display(Name = "First Name")]
    public string FirstName { get; set; }

    [Required, Display(Name = "Last Name")]
    public string LastName { get; set; }

    [EnumDataType(typeof(Gender))]
    public Gender GenderType { get; set; }
}

public enum Gender
{
    Male = 1,
    Female = 2
}

这是视图中的一个表单的一部分:

Here is part of a form in the view:

<div class="form-group">
    <label asp-for="GenderType" class="col-md-2 control-label"></label>
    <div class="col-md-10">
        <select asp-for="GenderType" asp-items="Html.GetEnumSelectList<GenderType>()">
            <option selected="selected" value="">Please select</option>
        </select>
        <span asp-validation-for="GenderType" class="text-danger" />
    </div>
</div>

我遇到的问题是在 Html.GetEnumSelectList 之后，GenderType 无法识别并显示为错误.

The problem I'm having is that after Html.GetEnumSelectList, GenderType is not recognized and shows up as an error.

有人知道怎么解决吗?

推荐答案

我想你不小心使用了 GenderType 而不是 Gender.正确的语法是

I think you accidentally used GenderType instead of Gender. The correct syntax is

<select asp-for="GenderType" asp-items="Html.GetEnumSelectList<Gender>()">
    <option selected="selected" value="">Please select</option>
</select>

这篇关于在 ASP.NET MVC Core 中使用枚举作为下拉列表的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持跟版网！