Question

我正在尝试以用户友好的可读名称使用枚举但我无法找到如何将它绑定到我的视图

这是我到目前为止所做的：

public enum MyDayOfWeek
{
    Sunday = 0,
    Monday = 1,
    Tuesday = 2,
    Wednesday = 3,
    Thursday = 4,
    Friday = 5,
    Saturday = 6,
    SunTilFir = 7,

}

public class Course
{
    public int CourseId { get; set; }
    public string CourseName { get; set; }
    public int Hour { get; set; }
    public MyDayOfWeek Days { get; set; }
}

public static class ChangeEnumName
{
    public static string EnumValue(this MyDayOfWeek e)
    {
        switch (e)
        {
            case MyDayOfWeek.SunTilFir:
                return "Sunday until Friday ";
        }
        return "Horrible Failure!!";
    }
}

如何将ChangeEnum名称绑定到我的视图？

Answer 1

您可以做的是在模型上创建只读属性，从中返回您的FriendlyName

public class Course
{
    public int CourseId { get; set; }
    public string CourseName { get; set; }
    public int Hour { get; set; }
    public MyDayOfWeek Days { get; set; }

    public string DaysFriendlyName
    {
         get
         {
              switch(this.Days)
              {
                  case MyDayOfWeek.SunTilFir:
                         return "Sunday until Friday ";
              }
              return "Horrible Failure!!";
         }
     }
}

可能更好的是不在您的只读属性的主体中实现切换，但可能为它做一个扩展方法？所以你的身体会是这样的：

public string DaysFriendlyName
{
    get
    {
         return this.Days.ToFriendlyName();
    }
}

扩展方法：

namespace UniPro.Models
{    
    public static class DaysEnumExtensions
    {
         public static string ToFriendlyName(this MyDayOfWeek days)
         {
              switch (days)
              {
               //....
              }
         }
     }
}

扩展方法的好处在于你可以松开readonly属性并直接从你的剃刀视图绑定到扩展方法（在你的剃刀视图中使用＆＃39;为此设置为工作）。

Answer 2

您可以尝试这样做：

public enum MyDayOfWeek
{
    [UserFriendlyName("Sunday")]
    Sunday = 0,

    [UserFriendlyName("Monday")]
    Monday = 1,

    [UserFriendlyName("Tuesday")]
    Tuesday = 2,

    [UserFriendlyName("Wednesday")]
    Wednesday = 3,

    [UserFriendlyName("Thursday")]
    Thursday = 4,

    [UserFriendlyName("Friday")]
    Friday = 5,

    [UserFriendlyName("Saturday")]
    Saturday = 6,

    [UserFriendlyName("Sunday until Friday")]
    SunTilFir = 7
}

public class UserFriendlyNameAttribute : Attribute
{
    public string Text { get; set; }

    public UserFriendlyNameAttribute(string text)
    {
        Text = text;
    }
}

public static class EnumExtensions
{
    public static string GetUserFriendlyName(this MyDayOfWeek myDayOfWeek)
    {
        return GetUserFriendlyNameAttributeText(typeof(MyDayOfWeek), myDayOfWeek.ToString());
    }

    private static string GetUserFriendlyNameAttributeText(this Type type, string memberName)
    {
        var memInfo = type.GetMember(memberName);
        if (memInfo.Length == 0)
            return string.Empty;

        var attributes = memInfo[0].GetCustomAttributes(typeof(UserFriendlyNameAttribute), false);
        if (attributes.Length == 0)
            return null;

        return ((UserFriendlyNameAttribute) attributes[0]).Text;
    }
}

因此，您可以在视图中将其用作扩展方法：

MyDayOfWeek.SunTilFir.GetUserFriendlyName()

使用枚举友好名称

2 个答案: