CODEWITHSUNDEEP
c#stringbinaryhex
savi
savi

Reputation: 527

Convert Binary string to Hex string without losing leading zeros

I am trying to convert Binary string to hex, however I miss the zero values, I mean Binary string 000001010100 should become hex string 054?

I'm currently using 

Convert.ToInt32(value,2).ToString("X")

Upvotes: 0

Views: 3740

Answers (2)

hatchet - done with SOverflow
hatchet - done with SOverflow

Reputation: 16259

You can simply use 

Convert.ToInt32(value,2).ToString("X3")

where the number following the X is the minimum number of digits you want in the final string. I used the number 3, because that was the output you included as an example. It's explained in more detail in this Microsoft documentation.

Upvotes: 2

Guffa
Guffa

Reputation: 700262

You can split the string in four digit parts, parse them and format into a hex digit. That gives you the correct number of digits. Example:

string bin = "000001010100";
string hex = String.Concat(
  Regex.Matches(bin, "....").Cast<Match>()
  .Select(m => Convert.ToInt32(m.Value, 2)
  .ToString("x1"))
);

Upvotes: 2

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