SortedList.GetKeyList Metode

Definisi

Ruang nama:

System.Collections

Rakitan:

System.Collections.NonGeneric.dll

Sumber:

SortedList.cs

Mendapatkan kunci dalam SortedList objek.

public:
 virtual System::Collections::IList ^ GetKeyList();

public virtual System.Collections.IList GetKeyList ();

abstract member GetKeyList : unit -> System.Collections.IList
override this.GetKeyList : unit -> System.Collections.IList

Public Overridable Function GetKeyList () As IList

Mengembalikan

IList

Objek IList yang berisi kunci dalam SortedList objek .

Contoh

Contoh kode berikut menunjukkan cara mendapatkan satu atau semua kunci atau nilai dalam SortedList objek.

#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, "jumps" );
   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     jumps
        1.5     over
        1.6     the
        1.7     lazy
        1.8     dog
*/

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, "jumps" );
      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    jumps
    1.5    over
    1.6    the
    1.7    lazy
    1.8    dog
*/

Imports System.Collections

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, "jumps")
        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    jumps
'     1.5    over
'     1.6    the
'     1.7    lazy
'     1.8    dog

Keterangan

Objek yang dikembalikan IList adalah tampilan baca-saja dari kunci SortedList objek. Modifikasi yang dilakukan pada yang mendasar SortedList segera tercermin dalam IList.

Elemen yang dikembalikan IList diurutkan dalam urutan yang sama dengan kunci SortedList.

Metode ini mirip Keys dengan properti , tetapi mengembalikan objek alih-alih IListICollection objek .

Metode ini adalah O(1) operasi.

Lihat juga

• IList
• GetValueList()
• Keys