# byte to string to byte • ### Question

• how do i convert a 1 byte to string "representation" of the byte?

for ex : byte b=55; ==>string s="00110111"

and the opposite

string s="10101111" ==> byte b=175;

Saturday, October 22, 2011 10:23 PM

• > string s="10101111" ==> byte b=175;

`var res = Convert.ToByte("10101111", 2);`

> byte b=55; ==>string s="00110111"

`var res = Convert.ToString((byte)55, 2).PadLeft(8, '0');`

• Edited by Saturday, October 22, 2011 11:21 PM
• Proposed as answer by Saturday, October 22, 2011 11:22 PM
• Marked as answer by Saturday, October 22, 2011 11:39 PM
Saturday, October 22, 2011 11:00 PM
• 1. I did an example code whcih converts byte to string (of bits):

```        private void YourMethod()
{
byte myByte = 55;
bool[] bits = GetBits(myByte).ToArray();
string strBits = string.Empty;
foreach (bool bit in bits)
strBits += bit ? 1 : 0;

MessageBox.Show(String.Format("From byte {0} we get bits as: {1}.", myByte, strBits));
}

IEnumerable<bool> GetBits(byte b)
{
for (int i = 0; i < 8; i++)
{
yield return (b & 0x80) != 0;
b *= 2;
}
}```
`---------------------------------`

`2. To convert back to byte you can do:`
```int res = Convert.ToInt32(strBits, 2);

```

Mitja
• Marked as answer by Saturday, October 22, 2011 11:17 PM
Saturday, October 22, 2011 11:10 PM
• You can use the Convert class for both:

```byte b = 55;
string stringRepresentation = Convert.ToString (b, 2);
byte byteRepresentation = Convert.ToByte (stringRepresentation, 2);

```

HTH
--mc

• Marked as answer by Saturday, October 22, 2011 11:24 PM
Saturday, October 22, 2011 11:22 PM

### All replies

• > string s="10101111" ==> byte b=175;

`var res = Convert.ToByte("10101111", 2);`

> byte b=55; ==>string s="00110111"

`var res = Convert.ToString((byte)55, 2).PadLeft(8, '0');`

• Edited by Saturday, October 22, 2011 11:21 PM
• Proposed as answer by Saturday, October 22, 2011 11:22 PM
• Marked as answer by Saturday, October 22, 2011 11:39 PM
Saturday, October 22, 2011 11:00 PM
• 1. I did an example code whcih converts byte to string (of bits):

```        private void YourMethod()
{
byte myByte = 55;
bool[] bits = GetBits(myByte).ToArray();
string strBits = string.Empty;
foreach (bool bit in bits)
strBits += bit ? 1 : 0;

MessageBox.Show(String.Format("From byte {0} we get bits as: {1}.", myByte, strBits));
}

IEnumerable<bool> GetBits(byte b)
{
for (int i = 0; i < 8; i++)
{
yield return (b & 0x80) != 0;
b *= 2;
}
}```
`---------------------------------`

`2. To convert back to byte you can do:`
```int res = Convert.ToInt32(strBits, 2);

```

Mitja
• Marked as answer by Saturday, October 22, 2011 11:17 PM
Saturday, October 22, 2011 11:10 PM
• Mitja, can you explain why you did b & 0x80?
Saturday, October 22, 2011 11:17 PM
• You can use the Convert class for both:

```byte b = 55;
string stringRepresentation = Convert.ToString (b, 2);
byte byteRepresentation = Convert.ToByte (stringRepresentation, 2);

```

HTH
--mc

• Marked as answer by Saturday, October 22, 2011 11:24 PM
Saturday, October 22, 2011 11:22 PM
• Hi pelegk1, did you see my answer above? it does exactly what you wanted.

Saturday, October 22, 2011 11:39 PM
• yes 10 alot all of u:)
Saturday, October 22, 2011 11:40 PM
• you are welcome
Saturday, October 22, 2011 11:41 PM