C# Dictionary hex, bin

Question

Hello,

Code:
HEX: FF70000000000000000000000
BIN: 1111 1111 0111 -> sample pos 8 is bad
Dez:

I am looking for a way where I can convert a hex value to a dictionary with 0 or 1. What is the best way to do this?

Dictionary dictGoodBad;
INPUT (string as hex) --> OUTPUT Dictionary or list.

Key Value
0 true
1 true
2 true
3 true

...

8 false
9

or other direction.
Thanks for help!

Answer 1

Try using linq, it should meet your needs:

            string hexString = @"FF70000000000000000000000";  
            string binString  = String.Join(String.Empty, hexString.Select(c => Convert.ToString(Convert.ToUInt32(c.ToString(), 16), 2).PadLeft(4, '0')));  
  
            List<bool> result =  binString.Select(c => c == '1').ToList();  

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Answer 2

I;m not sure on which part of the task you want advice. If you just want
to store the key (bit position) and value (true or false) in a Dictionary
based on the values in a binary string, then this should work:

binstr = "11111111111111110111";

Console.WriteLine("\nBinary string: {0}", binstr);
Dictionary <int, bool> bitDict = new Dictionary<int, bool>();
int count = 0;
foreach(char bitchar in binstr)
{
    bitDict.Add(count++, bitchar == '1' ? true : false);
}
foreach(KeyValuePair<int, bool> kp in bitDict)
{
    Console.WriteLine("{0} {1}", kp.Key, kp.Value);
}

Output:

Binary string: 11111111111111110111
0 True
1 True
2 True
3 True
4 True
5 True
6 True
7 True
8 True
9 True
10 True
11 True
12 True
13 True
14 True
15 True
16 False
17 True
18 True
19 True

I'm assuming that bit number ordering is not important in this case.

LSB->MSB or MSB->LSB

If you're looking for the whole enchilada - converting a hex string to
a binary string and then populate the Dictionary, then you may be asking
us to write the whole code for you. There are many examples of converting
a hex string on the web, so you should be able to do that part after
a little online research.

• Wayne