我的枚举由以下值组成:
private enum PublishStatusses{
NotCompleted,
Completed,
Error
};
我希望能够以用户友好的方式输出这些值。 我不需要再从字符串到值。
我的枚举由以下值组成:
private enum PublishStatusses{
NotCompleted,
Completed,
Error
};
我希望能够以用户友好的方式输出这些值。 我不需要再从字符串到值。
当前回答
最简单的方法是将这个扩展类包含到你的项目中,它将与项目中的任何枚举一起工作:
public static class EnumExtensions
{
public static string ToFriendlyString(this Enum code)
{
return Enum.GetName(code.GetType(), code);
}
}
用法:
enum ExampleEnum
{
Demo = 0,
Test = 1,
Live = 2
}
...
ExampleEnum ee = ExampleEnum.Live;
Console.WriteLine(ee.ToFriendlyString());
其他回答
public enum MyEnum
{
[Description("Option One")]
Option_One
}
public static string ToDescriptionString(this Enum This)
{
Type type = This.GetType();
string name = Enum.GetName(type, This);
MemberInfo member = type.GetMembers()
.Where(w => w.Name == name)
.FirstOrDefault();
DescriptionAttribute attribute = member != null
? member.GetCustomAttributes(true)
.Where(w => w.GetType() == typeof(DescriptionAttribute))
.FirstOrDefault() as DescriptionAttribute
: null;
return attribute != null ? attribute.Description : name;
}
使用枚举。GetName
从上面的链接…
using System;
public class GetNameTest {
enum Colors { Red, Green, Blue, Yellow };
enum Styles { Plaid, Striped, Tartan, Corduroy };
public static void Main() {
Console.WriteLine("The 4th value of the Colors Enum is {0}", Enum.GetName(typeof(Colors), 3));
Console.WriteLine("The 4th value of the Styles Enum is {0}", Enum.GetName(typeof(Styles), 3));
}
}
// The example displays the following output:
// The 4th value of the Colors Enum is Yellow
// The 4th value of the Styles Enum is Corduroy
我用扩展方法做到这一点:
public enum ErrorLevel
{
None,
Low,
High,
SoylentGreen
}
public static class ErrorLevelExtensions
{
public static string ToFriendlyString(this ErrorLevel me)
{
switch(me)
{
case ErrorLevel.None:
return "Everything is OK";
case ErrorLevel.Low:
return "SNAFU, if you know what I mean.";
case ErrorLevel.High:
return "Reaching TARFU levels";
case ErrorLevel.SoylentGreen:
return "ITS PEOPLE!!!!";
default:
return "Get your damn dirty hands off me you FILTHY APE!";
}
}
}
最简单的方法是将这个扩展类包含到你的项目中,它将与项目中的任何枚举一起工作:
public static class EnumExtensions
{
public static string ToFriendlyString(this Enum code)
{
return Enum.GetName(code.GetType(), code);
}
}
用法:
enum ExampleEnum
{
Demo = 0,
Test = 1,
Live = 2
}
...
ExampleEnum ee = ExampleEnum.Live;
Console.WriteLine(ee.ToFriendlyString());
我使用系统中的Description属性。ComponentModel名称空间。简单地装饰enum:
private enum PublishStatusValue
{
[Description("Not Completed")]
NotCompleted,
Completed,
Error
};
然后使用下面的代码来检索它:
public static string GetDescription<T>(this T enumerationValue)
where T : struct
{
Type type = enumerationValue.GetType();
if (!type.IsEnum)
{
throw new ArgumentException("EnumerationValue must be of Enum type", "enumerationValue");
}
//Tries to find a DescriptionAttribute for a potential friendly name
//for the enum
MemberInfo[] memberInfo = type.GetMember(enumerationValue.ToString());
if (memberInfo != null && memberInfo.Length > 0)
{
object[] attrs = memberInfo[0].GetCustomAttributes(typeof(DescriptionAttribute), false);
if (attrs != null && attrs.Length > 0)
{
//Pull out the description value
return ((DescriptionAttribute)attrs[0]).Description;
}
}
//If we have no description attribute, just return the ToString of the enum
return enumerationValue.ToString();
}