所有枚举项到字符串（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 
} 

而我想存档是一样的东西：

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

Answer 1

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

Answer 2

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

Answer 3

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); 
} 

或在Linq：

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

Answer 4

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

Answer 5

虽然@驼鹿的回答是最好的，我建议你缓存值，因为你可能会经常使用它，但它不可能100％的执行过程中改变 - 除非你修改和重新编译枚举。 :)

像这样：

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

Answer 6

一个简单而通用的方法来一个枚举转换为东西，你可以互动：

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>();