Convert from string array to byte array

Question

I'm using C#.

I have a string array as follow: "1,2,3,4,5,..." I'm trying to convert the string array to byte array as follow []{1,2,3,4,5,...} What is the best way to do that?

Thanks.

Your answer lies in a previous question: stackoverflow.com/questions/10531148/… — Knight Fall
– Knight Fall, Commented Oct 25, 2016 at 15:55

Dmitrii Bychenko · Accepted Answer · 2016-10-25 15:53:07Z

7

Try using Linq:

 string source = "1,2,3,4,5";

 byte[] result = source
   .Split(',')
   .Select(item => byte.Parse(item))
   .ToArray();

answered Oct 25, 2016 at 15:53

Dmitrii Bychenko

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mybirthname · Accepted Answer · 2016-10-25 18:39:42Z

4

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

Str represent string[]. If you have string you should string[] str = string.Split(',');

edited Oct 25, 2016 at 18:39

answered Oct 25, 2016 at 15:53

mybirthname

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4 Comments

Chris Dunaway Over a year ago

This doesn't compile because the base argument is only applicable when the first argument is a string. In your code, s is type char. I get the following error: Argument 2: cannot convert from 'int' to 'System.IFormatProvider' In addition, this will include the commas as arguments.

mybirthname Over a year ago

@ChrisDunaway Str is string array the question is string array to byte array.

Chris Dunaway Over a year ago

I re-read the question and though the OP used the words "string array", I believe they actually had a string and not a real string[] to begin with. The accepted answer seems to support this assumption. I agree that your answer is valid given that str is really a string[].

mybirthname Over a year ago

@ChrisDunaway I edit it, I'm from mobile so I have limited possibilities for formatting.

serhiyb · Accepted Answer · 2016-10-25 16:05:57Z

2

byte[] result = Array.ConvertAll(str.Split(','), Convert.ToByte);

answered Oct 25, 2016 at 16:05

serhiyb

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