System.Xml.XmlConvert.FromBinHexString C# (CSharp) Method

        internal static byte[] FromBinHexString(string s)
        {
            return FromBinHexString(s, true);
        }

        public int ReadBinHex(byte [] buffer, int offset, int length)
        {
            if (offset < 0)
            {
                throw CreateArgumentOutOfRangeException("offset", offset, "Offset must be non-negative integer.");
            }
            else if (length < 0)
            {
                throw CreateArgumentOutOfRangeException("length", length, "Length must be non-negative integer.");
            }
            else if (buffer.Length < offset + length)
            {
                throw new ArgumentOutOfRangeException("buffer length is smaller than the sum of offset and length.");
            }

            if (length == 0)
            {
                return(0);
            }

            char [] chars       = new char [length * 2];
            int     charsLength = getter != null?
                                  getter(chars, 0, length * 2) :
                                      ReadValueChunk(chars, 0, length * 2);

            return(XmlConvert.FromBinHexString(chars, offset, charsLength, buffer));
        }