How to convert Decimal to binary C# (4 bits)

Question

i want to convert Decimal numbers to binary, Currently I'm using this way

private string strtoBin(string input)
{
    int number = Convert.ToInt32(input) ;
    string res = Convert.ToString(number, 2);

    return res;
}

it's working but when I'm having for example "6" I'm getting 110 instead of 0110? Any tips?!

`"6" I'm getting 110 instead of 0110` Why not `00000110` or ... — Hamlet Hakobyan, Nov 07 '14 at 19:24
See http://stackoverflow.com/questions/4829366/byte-to-binary-string-c-sharp-display-all-8-digits — Vojtěch Dohnal, Nov 07 '14 at 19:28
See http://stackoverflow.com/questions/6758196/convert-int-to-a-bit-array-in-net — Vikas Gupta, Nov 07 '14 at 19:37
Use the BitArray class as described here: http://stackoverflow.com/questions/6758196/convert-int-to-a-bit-array-in-net — Jan Petter Jetmundsen, Nov 07 '14 at 19:50

score 3 · Accepted Answer · answered Nov 07 '14 at 19:29

3

Simple string modification:

string res = Convert.ToString(number, 2);
res = new string('0', 8 - res.Length) + res;

answered Nov 07 '14 at 19:29

Disposer

1 Answers1