Get used chars : String Util « Data Types « C# / C Sharp

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Get used chars

 



//The MIT License (MIT)

//http://arolibraries.codeplex.com/license

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Text.RegularExpressions;



namespace AroLibraries.ExtensionMethods.Strings

{

    public static class StringExt

    {



        public static IList<char> Ext_GetUsedChars(this string iString)

        {

            IList<char> vList = new List<char>();

            for (int i = 0; i < iString.Length; i++)

            {

                char vChar = iString[i];

                char cCharLower = Char.ToLower(vChar);

                if (!vList.Contains(cCharLower) && Char.IsLetter(cCharLower))

                {

                    vList.Add(cCharLower);

                }

            }

            return vList;

        }

    }

}

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