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
}

我要存档的内容如下：

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：

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

尽管@ Moose的答案是最好的，但我建议你缓存这个值，因为你可能经常使用它，但是在执行期间它不可能100％改变 - 除非你正在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 5

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

Answer 6

将枚举转换为可以互动的内容的简单通用方法：

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>();

所有枚举项目到字符串（C＃）

6 个答案: