In C#, many times we need to convert a byte array to string format. In this blog, we are going to illustrate how to convert the byte array to its corresponding string format by using BitConverter.ToString() method.

Syntax:

public static string ToString(byte[ ] value)

It accepts one parameter "value" which specifies an array bytes.

It returns a corresponding string of specified array bytes.

Exceptions:

This method throws only "ArgumentNullException" if value parameter is null.

It can be used in the following ways:

1. ToString(Byte[ ]) ------> This method is used to converts the numerical value of each element of defined array byte to its corresponding string format.

2. ToString(Byte[ ], Int32) ----> This method is used to converts the numerical value of each element of defined subarray byte to its corresponding string format. It takes the start index value of a subarray.

3. ToString(Byte[ ], Int32, Int32) ------> This method is used to converts the numerical value of each element of defined subarray byte to its corresponding string format. It takes the start index value of a subarray and the length of the subarray. If we specify the length value “n” it will go upto the (n-1) subarray.

To convert byte array to string using BitConverter.ToString( Byte[ ] ) method, see the below code:

namespace ByteToStringConApp
 {
    class Program
     {
        static void Main(string[] args)
        {

            byte[] arrayBytes = { 100, 222, 194, 03 };
            string str = BitConverter.ToString(arrayBytes );   
            Console.WriteLine("String: " + str);
            Console.ReadKey();
         }
     }
 }

Output:

String : 64-DE-C2-03

To convert byte array to string using BitConverter.ToString(Byte[ ], Int32) method, see the below code:

namespace ByteToStringConApp
 {
    class Program
     {
        static void Main(string[] args)
        {

            byte[] arrayBytes = { 100, 222, 194, 03 };
            string str = BitConverter.ToString(arrayBytes,1 );   
            Console.WriteLine("String: " + str);
            Console.ReadKey();
         }
     }
 }

Output:

String : DE-C2-03

To convert byte array to string using BitConverter.ToString(Byte[ ], Int32, Int32) method, see the below code:

namespace ByteToStringConApp
 {
    class Program
     {
        static void Main(string[] args)
        {

            byte[] arrayBytes = { 100, 222, 194, 03 };
            string str = BitConverter.ToString(arrayBytes,0,3 );   
            Console.WriteLine("String: " + str);
            Console.ReadKey();
         }
     }
 }

Output:

String : 64-DE-C2