Hexadecimal to binary converter - CSharp System

CSharp examples for System:Math Number

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Description

Hexadecimal to binary converter

Demo Code


using System.Text;
using System.Collections.Generic;
using System;//from   w  w  w.  j  a v a  2  s  .co m

public class Main{
        /// <summary>
        /// Hexadecimal to binary converter
        /// </summary>
        public static string HexToBin(string value)
        {
            char[] digits = value.ToCharArray();
            StringBuilder sb = new StringBuilder();

            for (int i = 0; i < digits.Length; i++)
            {
                switch (digits[i])
                {
                    case '0': sb.Append("0000"); break;
                    case '1': sb.Append("0001"); break;
                    case '2': sb.Append("0010"); break;
                    case '3': sb.Append("0011"); break;
                    case '4': sb.Append("0100"); break;
                    case '5': sb.Append("0101"); break;
                    case '6': sb.Append("0110"); break;
                    case '7': sb.Append("0111"); break;
                    case '8': sb.Append("1000"); break;
                    case '9': sb.Append("1001"); break;
                    case 'A': sb.Append("1010"); break;
                    case 'B': sb.Append("1011"); break;
                    case 'C': sb.Append("1100"); break;
                    case 'D': sb.Append("1101"); break;
                    case 'E': sb.Append("1110"); break;
                    case 'F': sb.Append("1111"); break;
                }
            }

            return sb.ToString();
        }
}

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