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ASP.NET核心:标记帮助程序“选择”为空

tag-helpers asp.net-core select html c#

0

Oleg Sh · 技术社区 · 7 年前

我需要一个选择元素的视图。我有以下VM类:

public class EditTicketVM
{
    public EditTicketVM()
    {
        Statuses = new SelectList(new List<SelectListItem>{
            new SelectListItem("Open", "open"),
            new SelectListItem("Pending", "pending"),
            new SelectListItem("Hold", "hold"),
            new SelectListItem("Solved", "solved"),
            new SelectListItem("Closed", "closed"),
        });

    }

    public string Description { get; set; }
    public string Subject { get; set; }
    public string Status { get; set; }

    public SelectList Statuses { get; set; }
}

<select asp-for="Status" class="form-control" asp-items="Model.Statuses" />

但在结果页上,此元素为空:

1 回复 | 直到 7 年前

1

8

TanvirArjel 7 年前

我已经在我这边测试了你的代码。问题出在你身上 select 标签您正在使用自动关闭选择标记。这是行不通的。按如下方式编写选择标记:

<select asp-for="Status" class="form-control" asp-items="Model.Statuses">
   <option value="">Select Status</option>
</select>

SelectList 初始化。初始化的方式这是行不通的。初始化您的 选择列表 详情如下:

public EditTicketVM()
{
   Statuses = new SelectList(new List<SelectListItem> {
       new SelectListItem(){Text = "Open", Value = "open"},
       new SelectListItem(){Text = "Pending", Value = "pending"},
       new SelectListItem(){Text = "Hold", Value = "hold"},
       new SelectListItem(){Text = "Solved", Value = "solved"},
       new SelectListItem(){Text = "Closed", Value = "closed"},
    },"Value","Text");
}