CODEWITHSUNDEEP
c#arraysstringbyte
Ari
Ari

Reputation: 3669

Converting a string array to a byte array

Ok, before anyone attempts to label this as a duplicate, I am not asking for a string to a byte array. I want a string array, containing something similar like this: {"5","168","188","28","29","155"} to be converted to a byte array. I have searched, and was only able to find string to byte array, which is quite different. Thanks.

Edit: the array will be preset so that each member is parsable through byte.Parse, so this is not an issue.

Upvotes: 4

Views: 27769

Answers (4)

Guffa
Guffa

Reputation: 700152

You have to parse each string into a byte and put in a new array. You can just loop though the items and convert each one:

string[] strings = { "5", "168", "188", "28", "29", "155" };
byte[] bytes = new byte[strings.length];
for (int i = 0; i < strings.Length; i++) {
  bytes[i] = Byte.Parse(strings[i]);
}

You can also use the Array.ConvertAll method for this:

string[] strings = { "5", "168", "188", "28", "29", "155" };
byte[] bytes = Array.ConvertAll(strings, Byte.Parse);

You can also use LINQ extensions to do it:

string[] strings = { "5", "168", "188", "28", "29", "155" };
bytes = strings.Select(Byte.Parse).ToArray();

Upvotes: 6

Adil
Adil

Reputation: 148110

Try this

With linq

string[] strings = new[] { "1", "2", "3", "4" };
byte[] byteArray = strings.Select(x =>  byte.Parse(x)).ToArray();

Without linq

string[] strings = { "1", "2", "3", "4" };

byte[] bytArr = new byte[strings.Length];

int i = 0;

foreach(String text in strings)
{
  bytArr[i++] = byte.Parse(text);  
}

Upvotes: 2

Austin Salonen
Austin Salonen

Reputation: 50215

This will fail for anything that can't be parsed by byte.Parse

var str = new[] {"5", "168", "188", "28", "29", "155"};
var byt = str.Select(byte.Parse).ToArray();

Upvotes: 12

Tim S.
Tim S.

Reputation: 56536

Assuming you mean that you have a string array like string[] myArray = {"5","168",...};:

myArray.Select(x => byte.Parse(x)).ToArray();

Or:

myArray.Select(byte.Parse).ToArray();

Upvotes: 2

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