CODEWITHSUNDEEP
c#stringencoding
user1360113
user1360113

Reputation:

Convert hex string back to string

I have a string which has a character I would like to replace.

The character has a hex value of 96 and I would like to replace that character with a hex value of 2D. I tried to do a simple replace on the string but it didn't work because for some reason it doesn't recognize the char. And whenever I print it out it just prints a blank value:

byte testByte = byte.Parse("96", System.Globalization.NumberStyles.HexNumber);
char testChar = Convert.ToChar(testByte);  // when I print this its just a blank char

So, I moved on and converted the entire string into hex, but am not sure how to convert the hex value string back to string. Here's what I have:

// using windows 1252 encoding
System.Text.Encoding windows1252Encoding = System.Text.Encoding.GetEncoding(1252);
byte[] myByte = windows1252Encoding.GetBytes(myString);
var myHexString = BitConverter.ToString(myByte);

myHexString = myHexString .Replace("96", "2D");

so at this point I have replaced the hex value 96 to 2D, but how do I convert this hex value string back to string? Any help would be great!

Upvotes: 2

Views: 1202

Answers (2)

Jon Skeet
Jon Skeet

Reputation: 1503599

If you're actually trying to replace U+0096 with U+002D, you can use:

text = text.Replace("\u0096", "\u002d");

Note that U+0096 is "start of guarded area" though. If you actually mean "the value that is encoded in Windows 1252 as 96" then you might want:

text = text.Replace("\u2020", "\u002d");

(Based on the Wikipedia cp 1252 page, which shows 0x96 mapping to U+2020.)

Upvotes: 2

Guffa
Guffa

Reputation: 700820

Just replace one character with the other. You can use the \x escape code to use a character code in hex to specify a character:

s = s.Replace('\x96', '\x2d');

Upvotes: 0

Related Questions