Convert string to binary zeros and ones [duplicate]

Question

I want to convert string to binary and I tried this code

byte[] arr = System.Text.Encoding.ASCII.GetBytes(aa[i]);

and this

System.Text.ASCIIEncoding encoding = new System.Text.ASCIIEncoding();
byte[] arr= encoding.GetBytes(aa[i]);

but it returned numbers not binary say If I write 'm' it convert it to "0109" and I want to convert to zeros & Ones only Thanks in advance

Answer 1

Here is an example:

foreach (char c in "Test")
    Console.WriteLine(Convert.ToString(c, 2).PadLeft(8, '0'));

Answer 2

I'm not sure I completely understand your question, but if you want to convert text to binary this is how it is done:

public byte[] ToBinary(string stringPassed)
{
   System.Text.ASCIIEncoding  encoding = new System.Text.ASCIIEncoding();
   return encoding.GetBytes(stringPassed);
}

You need to pass the whole string, not the characters in the string.

Answer 3

You could use : Convert.ToByte(string value, int fromBase)

According to MSDN :

fromBase Type: System.Int32 The base of the number in value, which must be 2, 8, 10, or 16.

For more detail, see this link : Convert.ToByte()