This method is used to convert the numeric value of each element of a specified array of bytes to its equivalent hexadecimal string representation.
Syntax:
public static string ToString (byte[] value);
Here, the value is an array of bytes.
Return Value: This method returns a string of hexadecimal pairs separated by hyphens, where each pair represents the corresponding element in value. For example, “6E-1D-9A-00”.
Exception: This method throws ArgumentNullException if the byte array or you can say value is null.
Below programs illustrate the use of BitConverter.ToString(Byte[]) Method:
Example 1:
// C# program to demonstrate // BitConverter.ToString(Byte[]); // Method using System;
public class GFG {
// Main Method
public static void Main()
{
try {
// Define an array of byte values.
byte [] array1 = {0, 1, 2, 4, 8, 16,
32, 64, 128, 255};
// Display the values of the myArr.
Console.Write( "Initial Array: " );
// calling the PrintIndexAndValues()
// method to print
PrintIndexAndValues(array1);
// Getting hex string of byte values
string value = BitConverter.ToString(array1);
// Display the string
Console.Write( "string: " );
Console.Write( "{0}" , value);
}
catch (ArgumentNullException e) {
Console.Write( "Exception Thrown: " );
Console.Write( "{0}" , e.GetType(), e.Message);
}
}
// Defining the method
// PrintIndexAndValues
public static void PrintIndexAndValues( byte [] myArr)
{
for ( int i = 0; i < myArr.Length; i++) {
Console.Write( "{0} " , myArr[i]);
}
Console.WriteLine();
Console.WriteLine();
}
} |
Initial Array: 0 1 2 4 8 16 32 64 128 255 string: 00-01-02-04-08-10-20-40-80-FF
Example 2: For ArgumentNullException
// C# program to demonstrate // BitConverter.ToString(Byte[]); // Method using System;
public class GFG {
// Main Method
public static void Main()
{
try {
// Define an array of byte values.
byte [] array1 = null ;
// Getting hex string of byte values
string value = BitConverter.ToString(array1);
// Display the string
Console.Write( "string: " );
Console.Write( "{0}" , value);
}
catch (ArgumentNullException e) {
Console.Write( "Exception Thrown: " );
Console.Write( "{0}" , e.GetType(), e.Message);
}
}
} |
Exception Thrown: System.ArgumentNullException
Reference: