Converting bytes to a binary string in c#

Question

In c# I am converting a byte to binary, the actual answer is 00111111 but the result being given is 111111. Now I really need to display even the 2 0s in front. Can anyone tell me how to do this?

I am using:

Convert.ToString(byteArray[20],2)

and the byte value is 63

Answer 1

You could call the Byte.ToString(string) method, which allows you to pass a format string. The format string could specify "D8", which is 8 decimal digits, which would pad the string with zeroes on the left.

http://msdn.microsoft.com/en-us/library/y11056e9.aspx

Answer 2

Just change your code to:

string yourByteString = Convert.ToString(byteArray[20], 2).PadLeft(8, '0');
// produces "00111111"

Answer 3

Try this one:

public static String convert(byte b)
{
    StringBuilder str = new StringBuilder(8);
            int[] bl  = new int[8];

    for (int i = 0; i < bl.Length; i++)
    {               
        bl[bl.Length - 1 - i] = ((b & (1 << i)) != 0) ? 1 : 0;
    }

    foreach ( int num in bl) str.Append(num);

    return str.ToString();
}