UInt16.Equals Method (UInt16)


Returns a value indicating whether this instance is equal to a specified UInt16 value.

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

public bool Equals(
	ushort obj


Type: System.UInt16

A 16-bit unsigned integer to compare to this instance.

Return Value

Type: System.Boolean

true if obj has the same value as this instance; otherwise, false.

This method implements the System.IEquatable<T> interface, and performs slightly better than Equals because it does not have to convert the obj parameter to an object.

Notes to Callers:

Compiler overload resolution may account for an apparent difference in the behavior of the two Equals method overloads. If an implicit conversion between the obj argument and a UInt16 is defined and the argument is not typed as an Object, compilers perform an implicit conversion and call the Equals(UInt16) method. Otherwise, they call the Equals(Object) method, which always returns false if its obj argument is not a UInt16 value. The following example illustrates the difference in behavior between the two method overloads. In the case of a Byte value, the first comparison returns true because the compiler automatically performs a widening conversion and calls the Equals(UInt16) method, whereas the second comparison returns false because the compiler calls the Equals(Object) method.

using System;

public class Example
   static ushort value = 112;

   public static void Main()
      byte byte1= 112;
      Console.WriteLine("value = byte1: {0,16}", value.Equals(byte1));

      short short1 = 112;
      Console.WriteLine("value = short1: {0,17}", value.Equals(short1));

      int int1 = 112;
      Console.WriteLine("value = int1: {0,19}", value.Equals(int1));

      sbyte sbyte1 = 112;
      Console.WriteLine("value = sbyte1: {0,17}", value.Equals(sbyte1));

      decimal dec1 = 112m;
      Console.WriteLine("value = dec1: {0,21}", value.Equals(dec1));

      double dbl1 = 112;
      Console.WriteLine("value = dbl1: {0,20}", value.Equals(dbl1));

   private static void TestObjectForEquality(Object obj)
      Console.WriteLine("{0} ({1}) = {2} ({3}): {4}\n",
                        value, value.GetType().Name,
                        obj, obj.GetType().Name,
// The example displays the following output:
//       value = byte1:             True
//       112 (UInt16) = 112 (Byte): False
//       value = short1:             False
//       112 (UInt16) = 112 (Int16): False
//       value = int1:               False
//       112 (UInt16) = 112 (Int32): False
//       value = sbyte1:             False
//       112 (UInt16) = 112 (SByte): False
//       value = dec1:                 False
//       112 (UInt16) = 112 (Decimal): False
//       value = dbl1:                False
//       112 (UInt16) = 112 (Double): False

Universal Windows Platform
Available since 8
.NET Framework
Available since 2.0
Portable Class Library
Supported in: portable .NET platforms
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
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