將列表的字符串屬性轉換為枚舉

Question

如何將列表字母字符串屬性Size正確轉換為枚舉？

Customer.Letter.Size是字符串類型。

Customer.Letter[i].Size = (BusinessObjects.CONSTANTS.E_Letters)BusinessObjects.CONSTANTS.dict[Customer.Letter[i].Size];//i variable declared in an for loop

那是我的列舉：

public enum E_Size {
    small = 1,
    medium = 2,
    big = 3
}

這是我的字典：

    public static Dictionary<string, E_Size> dict = new Dictionary<string, E_Size> {
        { "small", E_Size.small},
        { "medium", E_Size.medium},
        { "big", E_Size.big}
    };

Answer 1

為什么不使用標准的Enum.Parse ？

  String source = "small"; 
  // E_Size.small 
  E_Size size = (E_Size) (Enum.Parse(typeof(E_Size), source));

反向轉換（從E_Size到String ）

  E_Size source = E_Size.small;
  String result = source.ToString();

要么

  E_Size source = E_Size.small;
  String result = Enum.GetName(typeof(E_Size), source);

Answer 2

轉換為字符串，而不是枚舉：

Customer.Letter[i].Size = BusinessObjects.CONSTANTS.dict[Customer.Letter[i].Size].ToString();