CODEWITHSUNDEEP
c#hextype-conversion
Kahn Kah
Kahn Kah

Reputation: 1453

From textbox input to sending hexadecimal through serial in C#

I have a textbox in my C# GUI in which I want the user to let it enter hexadecimal values. Example:

input = 0x01 0xD 0x0A

After that, I want the hexadecimal value to be converted to bytes. What would my approach to this?

I do know in the end I need to use: 

bytes = new byte[amount of hex values]
                {
                   //here are my hexadecimal values 

                };

But what dynamic approach could I use to convert the string to separate hexa-values at runtime?

I have found:

string str = "7E 00 00 FF 00 00 00 00 00 00 00 00 00 00 00 00 00 FF";
byte[] bytes = str.Split(' ').Select(s => Convert.ToByte(s, 16)).ToArray();
serialport.Write(bytes, 0, bytes.Length);

but this wouldn't work at runtime (the amount of hexa values is set at compile time?)

Upvotes: 0

Views: 956

Answers (1)

JustAndrei
JustAndrei

Reputation: 859

LINQ:

var bytes = yourInput.Text.Split( ' ' ).Select( h => byte.Parse( h, NumberStyles.AllowHexSpecifier ) ).ToArray();

Upvotes: 1

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