Question

How do I build an escape sequence string in hexadecimal notation.

Example:

string s = '\x1A'; // this will create the hex-value 1A or dec-value 26 

I want to be able to build strings with hex-values between 00 to FF like this (in this example 1B)

string s = '\x' + '1B'; // Unrecognized escape sequence 

Maybe there’s another way of making hexadecimal strings…

Answer 1

You don’t store hexadecimal values in strings.

You can, but it would just be that, a string, and would have to be cast to an integer or a byte to actually read its value.

You can assign a hexadecimal value as a literal to an int or a byte though:

Byte value = 0x0FF; int value = 0x1B; 

So, its easily possible to pass an hexadecimal literal into your string:

string foo = String.Format('{0} hex test', 0x0BB); 

Which would create this string ‘126 hex test’.

But I don’t think that’s what you wanted?