Convert collections of enums to collection of strings and vice versa
- by Michael Freidgeim
Recently I needed to convert collections of strings, that represent enum names, to collection of enums, and opposite, to convert collections of enums to collection of strings. I didn’t find standard LINQ extensions.However, in our big collection of helper extensions I found what I needed - just with different names: /// <summary> /// Safe conversion, ignore any unexpected strings/// Consider to name as Convert extension /// </summary> /// <typeparam name="EnumType"></typeparam> /// <param name="stringsList"></param> /// <returns></returns> public static List<EnumType> StringsListAsEnumList<EnumType>(this List<string> stringsList) where EnumType : struct, IComparable, IConvertible, IFormattable { List<EnumType> enumsList = new List<EnumType>(); foreach (string sProvider in stringsList) { EnumType provider; if (EnumHelper.TryParse<EnumType>(sProvider, out provider)) { enumsList.Add(provider); } } return enumsList; }/// <summary> /// Convert each element of collection to string /// </summary> /// <typeparam name="T"></typeparam> /// <param name="objects"></param> /// <returns></returns> public static IEnumerable<string> ToStrings<T>(this IEnumerable<T> objects) {//from http://www.c-sharpcorner.com/Blogs/997/using-linq-to-convert-an-array-from-one-type-to-another.aspx return objects.Select(en => en.ToString()); }
