CODEWITHSUNDEEP
c#
samtal
samtal

Reputation: 131

Convert any value to Hex with variable length

I am trying to convert values of type int32 of variable size to a hex string with minimal length and 0 padding.

Example: 434 = 01 B2

There are several C# ways, but they all have fixed size, depending on the value type, (Example: Int32 will always give a 4 bytes value like 00 00 00 01 for the number 1).

One can write a code to do it, but I assume there is a shorter way.

thanks

samtal

Upvotes: 0

Views: 1233

Answers (3)

samtal
samtal

Reputation: 131

Thanks WAKU for the missing part that was s = s.Length % 2 == 0 ? s : "0" + s; I solved the space (or any char) by byte iteration and double padding as follows: (Not really clean but working)

    int i; string d;
        long x = 258458685;
        string s = x.ToString("X");
        s = s.Length % 2 == 0 ? s : "0" + s;
        for (i = 0; i < s.Length  ; i = i + 2)
        {
            d = s.Substring(i ,2);
            Console.Write(d.PadLeft(2, '0').PadLeft(3,' '));
        }

Result: 0F 67 C4 3D

Upvotes: 0

WAKU
WAKU

Reputation: 349

Well, Int3 ὰ's answer is close, just need a further EVEN number handling:

int x = 434;
string s = x.ToString("X");
s = s.Length % 2 == 0 ? s : "0" + s;

About the spaces issue, I didn't figure out a very simple way, however, you can look at this

Upvotes: 1

crypted
crypted

Reputation: 10306

int x = 434;
string s = x.ToString("X").PadLeft(5,'0');

This will produce , 001B2

Upvotes: 1

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