Nullable.Equals<T>(Nullable<T>, Nullable<T>) Method

Reference

Definition

Namespace:: System

Assemblies:: mscorlib.dll, System.Runtime.dll

Assemblies:: netstandard.dll, System.Runtime.dll

Assembly:: System.Runtime.dll

Assembly:: mscorlib.dll

Assembly:: netstandard.dll

Source:: Nullable.cs

Source:: Nullable.cs

Source:: Nullable.cs

Important

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Indicates whether two specified Nullable<T> objects are equal.

public:
generic <typename T>
 where T : value class static bool Equals(Nullable<T> n1, Nullable<T> n2);

public static bool Equals<T>(T? n1, T? n2) where T : struct;

[System.Runtime.InteropServices.ComVisible(true)]
public static bool Equals<T>(T? n1, T? n2) where T : struct;

static member Equals : Nullable<'T (requires 'T : struct)> * Nullable<'T (requires 'T : struct)> -> bool (requires 'T : struct)

[<System.Runtime.InteropServices.ComVisible(true)>]
static member Equals : Nullable<'T (requires 'T : struct)> * Nullable<'T (requires 'T : struct)> -> bool (requires 'T : struct)

Public Shared Function Equals(Of T As Structure) (n1 As Nullable(Of T), n2 As Nullable(Of T)) As Boolean

Type Parameters

T

The underlying value type of the n1 and n2 parameters.

Parameters

n1: Nullable<T>

A Nullable<T> object.

n2: Nullable<T>

A Nullable<T> object.

Returns

Boolean

true if the n1 parameter is equal to the n2 parameter; otherwise, false.

The return value depends on the HasValue and Value properties of the two parameters that are compared.

Return Value	Description
`true`	The HasValue properties for `n1` and `n2` are `false`, or the HasValue properties for `n1` and `n2` are `true`, and the Value properties of the parameters are equal.
`false`	The HasValue property is `true` for one parameter and `false` for the other parameter, or the HasValue properties for `n1` and `n2` are `true`, and the Value properties of the parameters are unequal.

Attributes: ComVisibleAttribute

Applies to

Продукт	Версии
.NET	Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9, 10
.NET Framework	2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1
.NET Standard	1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 2.0, 2.1
UWP	10.0

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