asp.core页面razor枚举下拉列表 [英] asp.core page razor enum dropdownlist

问题描述

我将Asp.Core 2.1与"Page Razor Crud"一起使用，并且希望在我的页面中显示一个下拉列表.

I use Asp.Core 2.1 with "Page Razor Crud" and I want into my page show a dropdownlist.

这是我的模特:

public enum EnumStatus
    {
        Waiting,
        [Display(Name = "Development progress")]
        Progress,
        Canceled,
        Refused,
        Deployed,
    }
    public class Improvement
    {
        [Key]
        public int ID { get; set; }

        public string Title { get; set; }

        [DataType(DataType.Text)]
        public string Description { get; set; }

        public EnumStatus Status { get; set; }
    }

CRUD剃刀页面生成以下行:

the CRUD Razor Page generated this line:

<select asp-for="Improvement.Status" class="form-control"></select>

但是它是空的.经过研究，我发现我需要添加asp项目.但是在这一点上，我测试过的所有解决方案都失败了.

But it's empty. After researchs, i found I need to add asp-items. But at this point, all solutions I tested failed.

最诚挚的问候，

推荐答案

在视图中尝试以下代码:

Try the following code in the view:

<select asp-for="Status" 
        asp-items="Html.GetEnumSelectList<EnumStatus>()" 
        class="form-control>
    <option selected="selected" value="">Please select</option>
</select>

此处 Status 是您的 Impprovement 模型类的属性，而 EnumStatus 是您的枚举类型的名称.

Here Status is the property of your Improvement model class while EnumStatus is the name of your enum type.

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