Char - ToString

Converts the specified Unicode character to its equivalent string representation.

Try it

public static void Main()
{
    char [] input = {'E','n','t','i','t','y',' ','F','r','a','m','e','w','o','r','k',' ','6','.','2'};
	
	String result = "";

    for (int i = 0; i < input.Length; i++)
    {
		// C# Extension Method: Char - ToString
		result += input[i].ToLower();
		
        Console.WriteLine("{0} : {1} ", input[i], result);
    }
}

View Source
using System;

public static partial class Extensions
{
    /// <summary>
    ///     Converts the specified Unicode character to its equivalent string representation.
    /// </summary>
    /// <param name="c">The Unicode character to convert.</param>
    /// <returns>The string representation of the value of .</returns>
    public static String ToString(this Char c)
    {
        return Char.ToString(c);
    }
}