C# SortedList Contains

Description

SortedList Contains determines whether a SortedList object contains a specific key.

Syntax

SortedList.Contains has the following syntax.


public virtual bool Contains(
  Object key
)

Parameters

SortedList.Contains has the following parameters.

  • key - The key to locate in the SortedList object.

Returns

SortedList.Contains method returns true if the SortedList object contains an element with the specified key; otherwise, false.

Example

SortedList.Contains determines whether a SortedList object contains a specific key.


using System;//from w  w  w .  j av  a  2 s  . c  om
using System.Collections;

public class SamplesSortedList  {

   public static void Main()  {

      SortedList mySL = new SortedList();
      mySL.Add( 2, "two" );
      mySL.Add( 4, "four" );
      mySL.Add( 1, "one" );
      mySL.Add( 3, "three" );
      mySL.Add( 0, "zero" );

      PrintIndexAndKeysAndValues( mySL );

      int myKey = 2;
      Console.WriteLine( "The key \"{0}\" is {1}.", myKey, mySL.ContainsKey( myKey ) ? "in the SortedList" : "NOT in the SortedList" );
      myKey = 6;
      Console.WriteLine( "The key \"{0}\" is {1}.", myKey, mySL.ContainsKey( myKey ) ? "in the SortedList" : "NOT in the SortedList" );

      String myValue = "three";
      Console.WriteLine( "The value \"{0}\" is {1}.", myValue, mySL.ContainsValue( myValue ) ? "in the SortedList" : "NOT in the SortedList" );
      myValue = "nine";
      Console.WriteLine( "The value \"{0}\" is {1}.", myValue, mySL.ContainsValue( myValue ) ? "in the SortedList" : "NOT in the SortedList" );
   }


   public static void PrintIndexAndKeysAndValues( SortedList myList )  {
      Console.WriteLine( "\t-INDEX-\t-KEY-\t-VALUE-" );
      for ( int i = 0; i < myList.Count; i++ )  {
         Console.WriteLine( "\t[{0}]:\t{1}\t{2}", i, myList.GetKey(i), myList.GetByIndex(i) );
      }
      Console.WriteLine();
   }
}

The code above generates the following result.





















Home »
  C# Tutorial »
    System.Collections »




ArrayList
BitArray
Comparer
Hashtable
Queue
SortedList
Stack