BitConverter.ToUInt16 Method

Returns a 16-bit unsigned integer converted from two bytes at a specified position in a byte array.

This API is not CLS-compliant. 

Namespace:  System
Assembly:  mscorlib (in mscorlib.dll)

[CLSCompliantAttribute(false)]
public static ushort ToUInt16(
	byte[] value,
	int startIndex
)

Parameters

value
Type: System.Byte[]
The array of bytes.
startIndex
Type: System.Int32
The starting position within value.

Return Value

Type: System.UInt16
A 16-bit unsigned integer formed by two bytes beginning at startIndex.

ExceptionCondition
ArgumentException

startIndex equals the length of value minus 1.

ArgumentNullException

value is null.

ArgumentOutOfRangeException

startIndex is less than zero or greater than the length of value minus 1.

The following code example converts elements of Byte arrays to UInt16 values with the ToUInt16 method.


// Example of the BitConverter.ToUInt16 method.
using System;

class Example
{
   const string formatter = "{0,5}{1,17}{2,10}";

   // Convert two byte array elements to a ushort and display it.
   public static void BAToUInt16(System.Windows.Controls.TextBlock outputBlock, byte[] bytes, int index)
   {
      ushort value = BitConverter.ToUInt16(bytes, index);

      outputBlock.Text += String.Format(formatter, index,
          BitConverter.ToString(bytes, index, 2), value) + "\n";
   }

   public static void Demo(System.Windows.Controls.TextBlock outputBlock)
   {
      byte[] byteArray = {
            15, 0, 0, 255, 3, 16, 39, 255, 255, 127 };

      outputBlock.Text += String.Format(
          "This example of the BitConverter.ToUInt16( byte[ ], " +
          "int ) \nmethod generates the following output. It " +
          "converts elements \nof a byte array to ushort values.\n") + "\n";
      outputBlock.Text += "initial byte array" + "\n";
      outputBlock.Text += "------------------" + "\n";
      outputBlock.Text += BitConverter.ToString(byteArray) + "\n";
      outputBlock.Text += "\n";
      outputBlock.Text += String.Format(formatter, "index", "array elements",
          "ushort") + "\n";
      outputBlock.Text += String.Format(formatter, "-----", "--------------",
          "------") + "\n";

      // Convert byte array elements to ushort values.
      BAToUInt16(outputBlock, byteArray, 1);
      BAToUInt16(outputBlock, byteArray, 0);
      BAToUInt16(outputBlock, byteArray, 3);
      BAToUInt16(outputBlock, byteArray, 5);
      BAToUInt16(outputBlock, byteArray, 8);
      BAToUInt16(outputBlock, byteArray, 7);
   }
}

/*
This example of the BitConverter.ToUInt16( byte[ ], int )
method generates the following output. It converts elements
of a byte array to ushort values.

initial byte array
------------------
0F-00-00-FF-03-10-27-FF-FF-7F

index   array elements    ushort
-----   --------------    ------
    1            00-00         0
    0            0F-00        15
    3            FF-03      1023
    5            10-27     10000
    8            FF-7F     32767
    7            FF-FF     65535
*/


Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Xbox 360, Windows Phone OS 7.0

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

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