Collection Vs Hashtable (VB.NET )

Referring to System.Collections.Hashtable and Microsoft.Visualbasic.Collection

• Collection - non case-sensitive string pattern (that is why it supports string as key)
  
• Hashtable - specific index key (that is why it supports object as key and not string as key)

• Hashtable - for accurate and fast return of item using the key
  
• Collection - for lesser accurate (based on non-case sensitive string pattern) and slower return of item using the key.

Conclusion:

• Hashtable - used for lookup purposes with distinctive key searching facility.
  
• Collection - used for storing a growing collection of items with non case-sensitive string pattern (key) searching facility.

Please download the sample code (VB.NET Visual Studio 2008 SP1)