c# - 基于字段值的自定义显示注释

Question

我有一个基于字段值的视图，必须显示自定义标签。

视图模型：

public class CreateAdViewModel
{
     public int Operation_Id { get; set; } 

     [Display(ResourceType = typeof(HeelpResources), Name = "AdViewModel_Price_Label")]
     public decimal Price { get; set; }
}

看法：

    <div id="price">
        @Html.DisplayNameFor(m => m.Price)
        @Html.TextBoxFor(m => m.Price) €
        @Html.ValidationMessageFor(m => m.Price)
    </div>

我要显示：

"Price: "  if Operation_Id = 1 (For the Sale of a Car)

和

"Price Up To: "  if Operation_Id = 2 (For someone looking for a car until value XX €)

Answer 1

2个属性怎么样：

public class CreateAdViewModel
{
    public int Operation_Id { get; set; }

    [Display(ResourceType = typeof(HelpResources), Name = "AdViewModel_Price_Label")]
    public decimal? Price { get; set; }

    [Display(ResourceType = typeof(HelpResources), Name = "AdViewModel_MaxPrice_Label")]
    public decimal? MaxPrice { get; set; }
}

在视图内部：

<div id="price">
    @if (Operation_Id == 1)
    {
        @Html.DisplayNameFor(m => m.Price)
        @Html.TextBoxFor(m => m.Price) €
        @Html.ValidationMessageFor(m => m.Price)
    }
    else
    {
        @Html.DisplayNameFor(m => m.MaxPrice)
        @Html.TextBoxFor(m => m.MaxPrice) €
        @Html.ValidationMessageFor(m => m.MaxPrice)
    }
</div>