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SortedList.GetByIndex Method

Gets the value at the specified index of a SortedList object.

Namespace: System.Collections
Assembly: mscorlib (in mscorlib.dll)

public virtual Object GetByIndex (
	int index
)
public Object GetByIndex (
	int index
)
public function GetByIndex (
	index : int
) : Object
Not applicable.

Parameters

index

The zero-based index of the value to get.

Return Value

The value at the specified index of the SortedList object.

Exception typeCondition

ArgumentOutOfRangeException

index is outside the range of valid indexes for the SortedList object.

The index sequence is based on the sort sequence. When an element is added, it is inserted into SortedList in the correct sort order, and the indexing adjusts accordingly. When an element is removed, the indexing also adjusts accordingly. Therefore, the index of a specific key/value pair might change as elements are added or removed from the SortedList object.

This method is an O(1) operation.

The following code example shows how to get one or all the keys or values in a SortedList object.

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
*/ 

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
 */

Windows 98, Windows Server 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

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0

XNA Framework

Supported in: 1.0

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