Läs på engelska Redigera

Dela via

Random.GetItems Method

  • Reference

Definition

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

Overloads

GetItems<T>(ReadOnlySpan<T>, Int32)

Creates an array populated with items chosen at random from the provided set of choices.
GetItems<T>(ReadOnlySpan<T>, Span<T>)

Fills the elements of a specified span with items chosen at random from the provided set of choices.
GetItems<T>(T[], Int32)

Creates an array populated with items chosen at random from the provided set of choices.

GetItems<T>(ReadOnlySpan<T>, Int32)

Source:
Random.cs
Source:
Random.cs

Creates an array populated with items chosen at random from the provided set of choices.

public:
generic <typename T>
 cli::array <T> ^ GetItems(ReadOnlySpan<T> choices, int length);
public T[] GetItems<T>(ReadOnlySpan<T> choices, int length);
member this.GetItems : ReadOnlySpan<'T> * int -> 'T[]
Public Function GetItems(Of T) (choices As ReadOnlySpan(Of T), length As Integer) As T()

Type Parameters

T

The type of array.

Parameters

choices
ReadOnlySpan<T>

The items to use to populate the array.

length
Int32

The length of array to return.

Returns

T[]

An array populated with random items.

Exceptions

ArgumentException

choices is empty.

ArgumentOutOfRangeException

length is not zero or a positive number.

Remarks

The method uses Next(Int32) to select items randomly from choices by index. This is used to populate a newly-created array.

Applies to

.NET 10 och andra versioner
Produkt Versioner
.NET 8, 9, 10

GetItems<T>(ReadOnlySpan<T>, Span<T>)

Source:
Random.cs
Source:
Random.cs

Fills the elements of a specified span with items chosen at random from the provided set of choices.

public:
generic <typename T>
 void GetItems(ReadOnlySpan<T> choices, Span<T> destination);
public void GetItems<T>(ReadOnlySpan<T> choices, Span<T> destination);
member this.GetItems : ReadOnlySpan<'T> * Span<'T> -> unit
Public Sub GetItems(Of T) (choices As ReadOnlySpan(Of T), destination As Span(Of T))

Type Parameters

T

The type of span.

Parameters

choices
ReadOnlySpan<T>

The items to use to populate the span.

destination
Span<T>

The span to be filled with items.

Exceptions

ArgumentException

choices is empty.

Remarks

The method uses Next(Int32) to select items randomly from choices by index and populate destination.

Applies to

.NET 10 och andra versioner
Produkt Versioner
.NET 8, 9, 10

GetItems<T>(T[], Int32)

Source:
Random.cs
Source:
Random.cs

Creates an array populated with items chosen at random from the provided set of choices.

public:
generic <typename T>
 cli::array <T> ^ GetItems(cli::array <T> ^ choices, int length);
public T[] GetItems<T>(T[] choices, int length);
member this.GetItems : 'T[] * int -> 'T[]
Public Function GetItems(Of T) (choices As T(), length As Integer) As T()

Type Parameters

T

The type of array.

Parameters

choices
T[]

The items to use to populate the array.

length
Int32

The length of array to return.

Returns

T[]

An array populated with random items.

Exceptions

ArgumentException

choices is empty.

ArgumentNullException

choices is null.

ArgumentOutOfRangeException

length is not zero or a positive number.

Remarks

The method uses Next(Int32) to select items randomly from choices by index. This is used to populate a newly-created array.

Applies to

.NET 10 och andra versioner
Produkt Versioner
.NET 8, 9, 10