转换枚举类到集合，用于绑定到控件

protected IDictionary<int, string> GetAll<TEnum>() where TEnum : struct     {         var enumerationType = typeof(TEnum);         if (!enumerationType.IsEnum)             throw new ArgumentException("Enumeration type is expected.");         var dictionary = new Dictionary<int, string>();         foreach (int value in Enum.GetValues(enumerationType))         {             var name = Enum.GetName(enumerationType, value);             dictionary.Add(value, name);         }         return dictionary;     }