C# BitConverter.ToUInt16() Method

The BitConverter.ToUInt16() method in C# is used to return a 16-bit unsigned integer converted from two bytes at a specified position in a byte array.

Syntax

public static ushort ToUInt16 (byte[] val, int begnIndex);

Above, val is the byte array, whereas begnIndex is the beginning position within val.

Example

Let us now see an example -

 Live Demo

using System;
public class Demo {
   public static void Main() {
      byte[] arr = { 10, 20, 30, 40, 50};
      int count = arr.Length;
      Console.Write("Byte Array... ");
      for (int i = 0; i < count; i++) {
         Console.Write("
"+arr[i]);
      }
      Console.WriteLine("

Byte Array (String representation) = {0} ",
      BitConverter.ToString(arr));
      for (int i = 1; i < arr.Length - 1; i = i + 2) {
         ushort res = BitConverter.ToUInt16(arr, i);
         Console.WriteLine("
Value = "+arr[i]);
         Console.WriteLine("Result = "+res);
      }
   }
}

Output

Byte Array...
10
20
30
40
50
Byte Array (String representation) = 0A-14-1E-28-32
Value = 20
Result = 7700
Value = 40
Result = 12840

Example

Let us now see another example -

 Live Demo

using System;
public class Demo {
   public static void Main() {
      byte[] arr = { 0, 0, 1, 3, 5, 7, 10, 16, 20, 34, 42, 55, 66, 75};
      int count = arr.Length;
      Console.Write("Byte Array... ");
      for (int i = 0; i < count; i++) {
         Console.Write("
"+arr[i]);
      }
      Console.WriteLine("

Byte Array (String representation) = {0} ",
      BitConverter.ToString(arr));
      for (int i = 1; i < arr.Length - 1; i = i + 2) {
         ushort res = BitConverter.ToUInt16(arr, i);
         Console.WriteLine("
Value = "+arr[i]);
         Console.WriteLine("Result = "+res);
      }
   }
}

Output

Byte Array...
0
0
1
3
5
7
10
16
20
34
42
55
66
75
Byte Array (String representation) = 00-00-01-03-05-07-0A-10-14-22-2A-37-42-4B
Value = 0
Result = 256
Value = 3
Result = 1283
Value = 7
Result = 2567
Value = 16
Result = 5136
Value = 34
Result = 10786
Value = 55
Result = 16951