Create a Hashtable using a case-insensitive code provider and a case-insensitive comparer, based on the InvariantCulture.
using System; using System.Collections; using System.Globalization; public class SamplesHashtable { public static void Main() { Hashtable myHT3 = new Hashtable( CaseInsensitiveHashCodeProvider.DefaultInvariant, CaseInsensitiveComparer.DefaultInvariant ); myHT3.Add("FIRST", "Hello"); myHT3.Add("SECOND", "World"); } }