Array.ConvertAll(TInput[], Converter<TInput,TOutput>) Array.ConvertAll(TInput[], Converter<TInput,TOutput>) Array.ConvertAll(TInput[], Converter<TInput,TOutput>) Array.ConvertAll(TInput[], Converter<TInput,TOutput>) Method

定義

ある型の配列を別の型の配列に変換します。Converts an array of one type to an array of another type.

public:
generic <typename TInput, typename TOutput>
 static cli::array <TOutput> ^ ConvertAll(cli::array <TInput> ^ array, Converter<TInput, TOutput> ^ converter);
public static TOutput[] ConvertAll<TInput,TOutput> (TInput[] array, Converter<TInput,TOutput> converter);
static member ConvertAll : 'Input[] * Converter<'Input, 'Output> -> 'Output[]
Public Shared Function ConvertAll(Of TInput, TOutput) (array As TInput(), converter As Converter(Of TInput, TOutput)) As TOutput()

型パラメーター

TInput

元の配列要素の型。The type of the elements of the source array.

TOutput

変換後の配列要素の型。The type of the elements of the target array.

パラメーター

array
TInput[]

変換元となる、インデックス番号が 0 から始まる 1 次元 ArrayThe one-dimensional, zero-based Array to convert to a target type.

converter
Converter<TInput,TOutput> Converter<TInput,TOutput> Converter<TInput,TOutput> Converter<TInput,TOutput>

各要素の型を変換するための Converter<TInput,TOutput>A Converter<TInput,TOutput> that converts each element from one type to another type.

戻り値

TOutput[]

要素の型を変換した後の配列。An array of the target type containing the converted elements from the source array.

例外

arraynullです。array is null.

- または --or- converternullです。converter is null.

次のコード例は、という名前のメソッドを定義します。PointFToPointに変換する、PointF構造体を、Point構造体。The following code example defines a method named PointFToPoint that converts a PointF structure to a Point structure. 配列を作成しPointF構造体を作成、Converter<PointF, Point>デリゲート (Converter(Of PointF, Point) Visual Basic で) を表す、PointFToPointメソッドに、デリゲートを渡します、ConvertAllメソッド。The example then creates an array of PointF structures, creates a Converter<PointF, Point> delegate (Converter(Of PointF, Point) in Visual Basic) to represent the PointFToPoint method, and passes the delegate to the ConvertAll method. ConvertAllメソッドは、入力リストの各要素に渡します、PointFToPointメソッドは、の新しいリストに変換された要素とPoint構造体。The ConvertAll method passes each element of the input list to the PointFToPoint method and puts the converted elements into a new list of Point structures. 両方の一覧が表示されます。Both lists are displayed.

#using <System.Drawing.dll>

using namespace System;
using namespace System::Drawing;
using namespace System::Collections::Generic;

Point PointFToPoint(PointF pf)
{
    return Point((int) pf.X, (int) pf.Y);
};

void main()
{
    // Create an array of PointF objects.
    array<PointF>^ apf = {
        PointF(27.8F, 32.62F),
        PointF(99.3F, 147.273F),
        PointF(7.5F, 1412.2F) };


    // Display each element in the PointF array.
    Console::WriteLine();
    for each(PointF p in apf)
    {
        Console::WriteLine(p);
    }

    // Convert each PointF element to a Point object.
    array<Point>^ ap = 
        Array::ConvertAll(apf, 
            gcnew Converter<PointF, Point>(PointFToPoint)
        );

    // Display each element in the Point array.
    Console::WriteLine();
    for each(Point p in ap)
    {
        Console::WriteLine(p);
    }
}

/* This code example produces the following output:

{X=27.8, Y=32.62}
{X=99.3, Y=147.273}
{X=7.5, Y=1412.2}

{X=27,Y=32}
{X=99,Y=147}
{X=7,Y=1412}
 */
using System;
using System.Drawing;
using System.Collections.Generic;

public class Example
{
    public static void Main()
    {
        // Create an array of PointF objects.
        PointF[] apf = {
            new PointF(27.8F, 32.62F),
            new PointF(99.3F, 147.273F),
            new PointF(7.5F, 1412.2F) };

        // Display each element in the PointF array.
        Console.WriteLine();
        foreach( PointF p in apf )
            Console.WriteLine(p);

        // Convert each PointF element to a Point object.
        Point[] ap = Array.ConvertAll(apf, 
            new Converter<PointF, Point>(PointFToPoint));

        // Display each element in the Point array.
        Console.WriteLine();
        foreach( Point p in ap )
        {
            Console.WriteLine(p);
        }
    }

    public static Point PointFToPoint(PointF pf)
    {
        return new Point(((int) pf.X), ((int) pf.Y));
    }
}

/* This code example produces the following output:

{X=27.8, Y=32.62}
{X=99.3, Y=147.273}
{X=7.5, Y=1412.2}

{X=27,Y=32}
{X=99,Y=147}
{X=7,Y=1412}
 */
Imports System.Drawing
Imports System.Collections.Generic

Public Class Example
    Public Shared Sub Main()
        ' Create an array of PointF objects.
        Dim apf() As PointF = { _
            New PointF(27.8, 32.62), _
            New PointF(99.3, 147.273), _
            New PointF(7.5, 1412.2)  }

        ' Display each element in the PointF array.
        Console.WriteLine()
        For Each p As PointF In apf
            Console.WriteLine(p)
        Next
        
        ' Convert each PointF element to a Point object.
        Dim ap() As Point = Array.ConvertAll(apf, _
            New Converter(Of PointF, Point)(AddressOf PointFToPoint))

        ' Display each element in the Point array.
        Console.WriteLine()
        For Each p As Point In ap
            Console.WriteLine(p)
        Next
    End Sub

    Public Shared Function PointFToPoint(ByVal pf As PointF) _
        As Point

        Return New Point(CInt(pf.X), CInt(pf.Y))
    End Function
End Class
' The example produces the following output:
'       {X=27.8, Y=32.62}
'       {X=99.3, Y=147.273}
'       {X=7.5, Y=1412.2}
'       
'       {X=28,Y=33}
'       {X=99,Y=147}
'       {X=8,Y=1412}

注釈

Converter<TInput,TOutput>オブジェクトを対象の型に変換するメソッドをデリゲートです。The Converter<TInput,TOutput> is a delegate to a method that converts an object to the target type. 要素arrayに個別に渡される、 Converter<TInput,TOutput>、新しい配列に変換された要素が保存されます。The elements of array are individually passed to the Converter<TInput,TOutput>, and the converted elements are saved in the new array.

ソースarrayは変更されません。The source array remains unchanged.

このメソッドは O (n) 操作、nは、Lengtharrayします。This method is an O(n) operation, where n is the Length of array.

適用対象

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