SortedList.GetKeyList メソッド

.NET Framework クラス ライブラリ リファレンス

SortedList.GetKeyList メソッド

SortedList 内のキーを取得します。

名前空間: System.Collections
アセンブリ: mscorlib (mscorlib.dll 内)
構文

Visual Basic (宣言)

Public Overridable Function
 GetKeyList As IList

Visual Basic (使用法)

Dim instance As SortedList
Dim returnValue As IList

returnValue = instance.GetKeyList

C#

public virtual IList GetKeyList ()

C++

public:
virtual IList^ GetKeyList ()

J#

public IList GetKeyList ()

JScript

public function GetKeyList () : IList

戻り値
SortedList 内のキーを格納している IList。

解説

返された IList は、SortedList のキーの読み取り専用ビューです。基になる SortedList が変更されると、その変更はすぐに IList に反映されます。

返された IList の要素は、SortedList のキーと同じ順序で並べ替えられます。

Keys に類似していますが、ICollection ではなく IList を返します。

このメソッドは O(1) 操作です。

使用例

SortedList 内のキーまたは値を個別にまたは一括して取得する方法の例を次に示します。

Visual Basic

Imports System
Imports System.Collections
Imports Microsoft.VisualBasic

Public Class SamplesSortedList
        
    Public Shared Sub Main()
        
        ' Creates and initializes a new SortedList.
        Dim mySL As New
 SortedList()
        mySL.Add(1.3, "fox")
        mySL.Add(1.4, "jumped")
        mySL.Add(1.5, "over")
        mySL.Add(1.2, "brown")
        mySL.Add(1.1, "quick")
        mySL.Add(1.0, "The")
        mySL.Add(1.6, "the")
        mySL.Add(1.8, "dog")
        mySL.Add(1.7, "lazy")
        
        ' Gets the key and the value based on the index.
        Dim myIndex As Integer
 = 3
        Console.WriteLine("The key   at index {0} is {1}.",
 myIndex, _
           mySL.GetKey(myIndex))
        Console.WriteLine("The value at index {0} is {1}.",
 myIndex, _
           mySL.GetByIndex(myIndex))
        
        ' Gets the list of keys and the list of values.
        Dim myKeyList As IList = mySL.GetKeyList()
        Dim myValueList As IList = mySL.GetValueList()
        
        ' Prints the keys in the first column and the values in the
 second column.
        Console.WriteLine(ControlChars.Tab & "-KEY-"
 & ControlChars.Tab & _
           "-VALUE-")
        Dim i As Integer
        For i = 0 To mySL.Count - 1
            Console.WriteLine(ControlChars.Tab & "{0}"
 & ControlChars.Tab & _
               "{1}", myKeyList(i), myValueList(i))
        Next i
    End Sub
End Class

' This code produces the following output.
' 
' The key   at index 3 is 1.3.
' The value at index 3 is fox.
'     -KEY-    -VALUE-
'     1    The
'     1.1    quick
'     1.2    brown
'     1.3    fox
'     1.4    jumped
'     1.5    over
'     1.6    the
'     1.7    lazy
'     1.8    dog

C#

using System;
using System.Collections;
public class SamplesSortedList  {

   public static void Main()
  {

      // Creates and initializes a new SortedList.
      SortedList mySL = new SortedList();
      mySL.Add( 1.3, "fox" );
      mySL.Add( 1.4, "jumped" );
      mySL.Add( 1.5, "over" );
      mySL.Add( 1.2, "brown" );
      mySL.Add( 1.1, "quick" );
      mySL.Add( 1.0, "The" );
      mySL.Add( 1.6, "the" );
      mySL.Add( 1.8, "dog" );
      mySL.Add( 1.7, "lazy" );

      // Gets the key and the value based on the index.
      int myIndex=3;
      Console.WriteLine( "The key   at index {0} is {1}.", myIndex, mySL.GetKey(
 myIndex ) );
      Console.WriteLine( "The value at index {0} is {1}.", myIndex, mySL.GetByIndex(
 myIndex ) );

      // Gets the list of keys and the list of values.
      IList myKeyList = mySL.GetKeyList();
      IList myValueList = mySL.GetValueList();

      // Prints the keys in the first column and the values in the second
 column.
      Console.WriteLine( "\t-KEY-\t-VALUE-" );
      for ( int i = 0; i < mySL.Count; i++
 )
         Console.WriteLine( "\t{0}\t{1}", myKeyList[i], myValueList[i]
 );
   }
}
/* 
This code produces the following output.

The key   at index 3 is 1.3.
The value at index 3 is fox.
    -KEY-    -VALUE-
    1    The
    1.1    quick
    1.2    brown
    1.3    fox
    1.4    jumped
    1.5    over
    1.6    the
    1.7    lazy
    1.8    dog
*/ 

C++

#using <system.dll>

using namespace System;
using namespace System::Collections;
int main()
{
   
   // Creates and initializes a new SortedList.
   SortedList^ mySL = gcnew SortedList;
   mySL->Add( 1.3, "fox" );
   mySL->Add( 1.4, "jumped" );
   mySL->Add( 1.5, "over" );
   mySL->Add( 1.2, "brown" );
   mySL->Add( 1.1, "quick" );
   mySL->Add( 1.0, "The" );
   mySL->Add( 1.6, "the" );
   mySL->Add( 1.8, "dog" );
   mySL->Add( 1.7, "lazy" );
   
   // Gets the key and the value based on the index.
   int myIndex = 3;
   Console::WriteLine( "The key   at index {0} is {1}.", myIndex, mySL->GetKey(
 myIndex ) );
   Console::WriteLine( "The value at index {0} is {1}.", myIndex, mySL->GetByIndex(
 myIndex ) );
   
   // Gets the list of keys and the list of values.
   IList^ myKeyList = mySL->GetKeyList();
   IList^ myValueList = mySL->GetValueList();
   
   // Prints the keys in the first column and the values in the second
 column.
   Console::WriteLine( "\t-KEY-\t-VALUE-" );
   for ( int i = 0; i < mySL->Count;
 i++ )
      Console::WriteLine( "\t{0}\t{1}", myKeyList[ i ], myValueList[ i
 ] );
}

/*
This code produces the following output.

The key   at index 3 is 1.3.
The value at index 3 is fox.
        -KEY-   -VALUE-
        1       The
        1.1     quick
        1.2     brown
        1.3     fox
        1.4     jumped
        1.5     over
        1.6     the
        1.7     lazy
        1.8     dog
*/

J#

import System.*;
import System.Collections.*;

public class SamplesSortedList
{
    public static void main(String[]
 args)
    {
        // Creates and initializes a new SortedList.
        SortedList mySL = new SortedList();

        mySL.Add((System.Single)1.3, "fox");
        mySL.Add((System.Single)1.4, "jumped");
        mySL.Add((System.Single)1.5, "over");
        mySL.Add((System.Single)1.2, "brown");
        mySL.Add((System.Single)1.1, "quick");
        mySL.Add((System.Single)1.0, "The");
        mySL.Add((System.Single)1.6, "the");
        mySL.Add((System.Single)1.8, "dog");
        mySL.Add((System.Single)1.7, "lazy");

        // Gets the key and the value based on the index.
        int myIndex = 3;

        Console.WriteLine("The key   at index {0} is {1}.", 
            System.Convert.ToString(myIndex), mySL.GetKey(myIndex));
        Console.WriteLine("The value at index {0} is {1}.", 
            System.Convert.ToString(myIndex), mySL.GetByIndex(myIndex));

        // Gets the list of keys and the list of values.
        IList myKeyList = mySL.GetKeyList();
        IList myValueList = mySL.GetValueList();

        // Prints the keys in the first column and the values in the
 
        // second column.
        Console.WriteLine("\t-KEY-\t-VALUE-");
        for (int i = 0; i < mySL.get_Count();
 i++) {
            Console.WriteLine("\t{0}\t{1}", myKeyList.get_Item(i), 
                myValueList.get_Item(i));
        }
    } //main
} //SamplesSortedList

/* 
 This code produces the following output.
 
 The key   at index 3 is 1.3.
 The value at index 3 is fox.
     -KEY-    -VALUE-
     1    The
     1.1    quick
     1.2    brown
     1.3    fox
     1.4    jumped
     1.5    over
     1.6    the
     1.7    lazy
     1.8    dog
 */

プラットフォーム

Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

開発プラットフォームの中には、.NET Framework によってサポートされていないバージョンがあります。サポートされているバージョンについては、「システム要件」を参照してください。

バージョン情報

.NET Framework
サポート対象 : 2.0、1.1、1.0
.NET Compact Framework
サポート対象 : 2.0

参照

関連項目
SortedList クラス
SortedList メンバ
System.Collections 名前空間
IList インターフェイス
GetValueList
Keys