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UInt64.Equals Method (UInt64)

Returns a value indicating whether this instance is equal to a specified UInt64 value.

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

abstract Equals : 
        obj:uint64 -> bool  
override Equals : 
        obj:uint64 -> bool

Parameters

obj
Type: System.UInt64

A UInt64 value to compare to this instance.

Return Value

Type: System.Boolean
true if obj has the same value as this instance; otherwise, false.

Implements

IEquatable(T).Equals(T)

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 UInt64 is defined and the argument is not typed as an Object, compilers perform an implicit conversion and call the Equals(UInt64) method. Otherwise, they call the Equals(Object) method, which always returns false if its obj argument is not a UInt64 value. The following example illustrates the difference in behavior between the two method overloads. In the case of the Byte, UInt16, and UInt32 values, the first comparison returns true because the compiler automatically performs a widening conversion and calls the Equals(UInt64) method, whereas the second comparison returns false because the compiler calls the Equals(Object) method.

No code example is currently available or this language may not be supported.

The following example demonstrates the Equals method.

No code example is currently available or this language may not be supported.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

XNA Framework

Supported in: 3.0, 2.0, 1.0

Portable Class Library

Supported in: Portable Class Library

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8
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