[英]MVC 5.1 Razor DisplayFor not working with Enum DisplayName
我有以下实体(域)对象和包含枚举的模型。 显示名称正确显示并适用于EnumDropdownList但由于某些原因不适用于DisplayFor帮助程序,所有显示的都是实际的枚举名称。
不知道我缺少什么,asp.net MVC 5.1为此添加了显示名称支持,所以我不需要创建自己的帮助方法。 请参阅: https : //aspnet.codeplex.com/SourceControl/latest#Samples/MVC/EnumSample/EnumSample/Models/Enums.cs
public class Addon
{
public int Id { get; set; }
public AddonType AddonType { get; set; }
public string Name { get; set; }
public decimal Price { get; set; }
public bool IsActive { get; set; }
}
public enum AddonType : byte
{
[Display(Name = "Cake Theme")]
CakeTheme,
[Display(Name = "Cake Flavour")]
CakeFlavour,
[Display(Name = "Cupcake Icing")]
CupcakeIcing,
[Display(Name = "Party Addon")]
AddOn
}
模型
public class AddonModel
{
public int Id { get; set; }
public AddonType AddonType { get; set; }
public string Name { get; set; }
public decimal Price { get; set; }
public int Quantity { get; set; }
public bool IsActive { get; set; }
}
视图
<h2>Index</h2>
<p>
@Html.ActionLink("Create New", "Create")
</p>
<table class="table">
<tr>
<th>Type</th>
<th>Name</th>
<th></th>
</tr>
@foreach (var item in Model) {
<tr>
<td>
@Html.DisplayFor(model => item.AddonType)
</td>
<td>
@Html.DisplayFor(model => item.Name)
</td>
<td>
@Html.DisplayFor(model => item.Price)
</td>
<td>
@Html.ActionLink("Edit", "Edit", new { id=item.Id }) |
@Html.ActionLink("Details", "Details", new { id=item.Id }) |
@Html.ActionLink("Delete", "Delete", new { id=item.Id })
</td>
</tr>
}
</table>
创建新文件夹Views / Shared / DisplayTemplates
将名为Enum的空部分视图添加到该文件夹
将Enum View代码替换为:
@model Enum
@if (EnumHelper.IsValidForEnumHelper(ViewData.ModelMetadata))
{
// Display Enum using same names (from [Display] attributes) as in editors
string displayName = null;
foreach (SelectListItem item in EnumHelper.GetSelectList(ViewData.ModelMetadata, (Enum)Model))
{
if (item.Selected)
{
displayName = item.Text ?? item.Value;
}
}
// Handle the unexpected case that nothing is selected
if (String.IsNullOrEmpty(displayName))
{
if (Model == null)
{
displayName = String.Empty;
}
else
{
displayName = Model.ToString();
}
}
@Html.DisplayTextFor(model => displayName)
}
else
{
// This Enum type is not supported. Fall back to the text.
@Html.DisplayTextFor(model => model)
}
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