Represents a collection of associated String keys and String values
using System; using System.Collections; using System.Collections.Specialized; public class SamplesNameValueCollection { public static void Main() { NameValueCollection myCol = new NameValueCollection(); myCol.Add( "A", "a" ); myCol.Add( "B", "b" ); myCol.Add( "C", "c" ); PrintKeysAndValues( myCol ); PrintKeysAndValues2( myCol ); Console.WriteLine( "Index 1 contains the value {0}.", myCol[1] ); Console.WriteLine( "Key \"A\" has the value {0}.", myCol["A"] ); String[] myStrArr = new String[myCol.Count]; myCol.CopyTo( myStrArr, 0 ); foreach ( String s in myStrArr ) Console.WriteLine( " {0}", s ); myCol.Remove( "A" ); PrintKeysAndValues( myCol ); myCol.Clear(); PrintKeysAndValues( myCol ); } public static void PrintKeysAndValues( NameValueCollection myCol ) { foreach ( String s in myCol.AllKeys ) Console.WriteLine( " {0,-10} {1}", s, myCol[s] ); } public static void PrintKeysAndValues2( NameValueCollection myCol ) { for ( int i = 0; i < myCol.Count; i++ ) Console.WriteLine( " [{0}] {1,-10} {2}", i, myCol.GetKey(i), myCol.Get(i) ); } }