How to get the STX character hex 02

Question

I have a device that I am trying to connect to through a socket, and in accordance with the manual I need the "STX character hex 02".

How to do it with C #?

Answer 1

You can use Unicode escape code: \u0002

Answer 2

Just a comment for GeoffM's answer (I don't have enough points to comment on the correct path).

You should not insert STX (or other characters) this way using only two digits.

If the next character (after "\ x02") was a valid hexadecimal digit, this would also be parsed, and that would be a mess.

 string s1 = "\x02End"; string s2 = "\x02" + "End"; string s3 = "\x0002End"; 

Here s1 is equal to ".nd", since 2E is a dot symbol, while s2 and s3 are equal to STX + "End".

Answer 3

Pass the value of Integer 2 to char :

 char cChar = (char)2; 

Answer 4

\x02 - STX code, you can check the ASCII table

 checkFinal = checkFinal.Replace("\x02", "End").ToString().Trim(); 

Answer 5

You can embed STX in a string like this:

 byte[] myBytes = System.Text.Encoding.ASCII.GetBytes("\x02Hello, world!"); socket.Send(myBytes); 

Answer 6

In the line, obviously, the Unicode format is best , but for use as a byte, this approach works:

 byte chrSTX = 0x02; // Start of Text byte chrETX = 0x03; // End of Text // etc...