C# Arrays – Convert String[] to byte[] Array

arraysbytec++string

I'm trying to convert this string array to byte array.

string[] _str= { "01", "02", "03", "FF"}; to byte[] _Byte = { 0x1, 0x2, 0x3, 0xFF};

I have tried the following code, but it does not work.
_Byte = Array.ConvertAll(_str, Byte.Parse);

And also, it would be much better if I could convert the following code directly to the byte array :
string s = "00 02 03 FF" to byte[] _Byte = { 0x1, 0x2, 0x3, 0xFF};

Best Answer

This should work: 

byte[] bytes = _str.Select(s => Convert.ToByte(s, 16)).ToArray();

using Convert.ToByte, you can specify the base from which to convert, which, in your case, is 16.

If you have a string separating the values with spaces, you can use String.Split to split it: 

string str = "00 02 03 FF"; 
byte[] bytes = str.Split(' ').Select(s => Convert.ToByte(s, 16)).ToArray();
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