Gets the value of the entry at the specified index of NameObjectCollectionBase : NameObjectCollectionBase « Collections Data Structure « C# / C Sharp






Gets the value of the entry at the specified index of NameObjectCollectionBase

 

using System;
using System.Collections;
using System.Collections.Specialized;

public class MyCollection : NameObjectCollectionBase  {
   private DictionaryEntry _de = new DictionaryEntry();
   public DictionaryEntry this[ int index ]  {
      get  {
         _de.Key = this.BaseGetKey( index );
         _de.Value = this.BaseGet( index );
         return( _de );
      }
   }
   public Object this[ String key ]  {
      get  {
         return( this.BaseGet( key ) );
      }
      set  {
         this.BaseSet( key, value );
      }
   }
   public MyCollection( IDictionary d )  {
      foreach ( DictionaryEntry de in d )  {
         this.BaseAdd( (String) de.Key, de.Value );
      }
   }
}

public class SamplesNameObjectCollectionBase  {
   public static void Main()  {
      IDictionary d = new ListDictionary();
      d.Add( "A", "a" );
      d.Add( "B", "b" );
      d.Add( "C", "c" );
      MyCollection myCol = new MyCollection( d );
      Console.WriteLine( "Initial state of the collection (Count = {0}):", myCol.Count );
      PrintKeysAndValues( myCol );
      Console.WriteLine( "The key at index 0 is {0}.", myCol[0].Key );
      Console.WriteLine( "The value at index 0 is {0}.", myCol[0].Value );
      Console.WriteLine( "The value associated with the key \"green\" is {0}.", myCol["green"] );

   }

   public static void PrintKeysAndValues( MyCollection myCol )  {
      for ( int i = 0; i < myCol.Count; i++ )  {
         Console.WriteLine( "[{0}] : {1}, {2}", i, myCol[i].Key, myCol[i].Value );
      }
   }

}

   
  








Related examples in the same category

1.NameObjectCollectionBase Demo
2.NameObjectCollectionBase is the base class for a collection of associated String keys and Object values
3.Adds an entry with the specified key and value into NameObjectCollectionBase
4.Removes all entries from NameObjectCollectionBase
5.Returns a String array that contains all the keys in NameObjectCollectionBase
6.Whether NameObjectCollectionBase contains entries whose keys are not null.
7.Removes the entries with the specified key from NameObjectCollectionBase
8.Sets the value of the entry at the specified index of NameObjectCollectionBase
9.Whether NameObjectCollectionBase is read-only.
10.Represents a collection of associated String keys and String values