所有枚举项转为字符串 (C#)

Question

如何将所有元素从枚举转换为字符串？

假设我有：

public enum LogicOperands {
        None,
        Or,
        And,
        Custom
}

我想要归档的内容类似于：

string LogicOperandsStr = LogicOperands.ToString();
// expected result:  "None,Or,And,Custom"

Answer 1

string s = string.Join(",",Enum.GetNames(typeof(LogicOperands)));

Answer 2

你必须做这样的事情：

var sbItems = new StringBuilder()
foreach (var item in Enum.GetNames(typeof(LogicOperands)))
{
    if(sbItems.Length>0)
        sbItems.Append(',');
    sbItems.Append(item);
}

或者在 Linq 中：

var list = Enum.GetNames(typeof(LogicOperands)).Aggregate((x,y) => x + "," + y);

Answer 3

string LogicOperandsStr 
     = Enum.GetNames(typeof(LogicOoperands)).Aggregate((current, next)=> 
                                                       current + "," + next);

Answer 4

虽然@Moose的答案是最好的，但我建议您缓存该值，因为您可能会经常使用它，但它在执行过程中100%不可能改变——除非您修改并重新编译枚举。 :)

就像这样：

public static class LogicOperandsHelper
{
  public static readonly string OperandList = 
    string.Join(",", Enum.GetNames(typeof(LogicOperands)));
}

Answer 5

foreach (string value in Enum.GetNames(typeof(LogicOoperands))
{
    str = str + "," + value;
}

Answer 6

将枚举转换为可以交互的内容的简单而通用的方法：

public static Dictionary<int, string> ToList<T>() where T : struct
{
   return ((IEnumerable<T>)Enum.GetValues(typeof(T))).ToDictionary(item => Convert.ToInt32(item), item => item.ToString());
}

然后：

var enums = EnumHelper.ToList<MyEnum>();