基於字段值的自定義顯示註釋

Question

我有一個基於字段值的視圖，必須顯示自定義標籤。

視圖模型：

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

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

查看：

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

我想顯示：

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

而且

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

Answer 1

怎麼樣2個屬性：

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; } 
} 

和視圖裏面：

<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>