C# Hex to Decimal, Decimal to Hex and Binary Conversion

1) Convert Hex to Decimal
private string HextoDecimal(string number)

    {

   try

        {

       return Convert.ToInt32(number, 16).ToString();

        }

        catch (Exception ex)

        {

       Console.Write(ex.Message);

        }

        return "";

     }

2) Convert Decimal to Hex

    private string DecimaltoHex(string number)

    {

   try

        {

       return int.Parse(number, System.Globalization.NumberStyles.HexNumber).ToString();

        }

        catch (Exception ex)

        {

       Console.Write(ex.Message);

        }

        return "";

   }

3) Convert Decimal to Binary 

    int length = 8;

        public string DeicmalToBin(int value, int leng)

        {

            try

            {

                return (leng > 1 ? DeicmalToBin(value >> 1, leng - 1) : null) + "01"[value & 1];

            }

            catch(Exception ex){

                Console.Write(ex.Message);

            }

            return "";

        }