Hashtable in VB.NET

Hashtable collection in VB.NET offers the ability to perform very fast and deterministic lookups from any key to a previously specified value. You store any type of object but you store them in key/value pairs. This way you can retrieve an item by a value instead of a numeric index. Conceptually, you add keys and values together, and then can search the table instantly, or even remove elements. As shown in this tutorial, the Hashtable provides a powerful and optimized lookup mechanism.

Given below example shows you how to create an simple Hashtable.

Example:

Module Module1
    Sub Main()
        ' Create an HashRecord.
        Dim Record As Hashtable = New Hashtable
        Record(1) = "One"
        Record(2) = "Two"
        Record(15) = "Fifteen"
        For Each e As DictionaryEntry In Record
            Console.WriteLine(e.Key)
            Console.WriteLine(e.Value)
        Next
        Console.ReadLine()
    End Sub
End Module

Output Window:

Happy Learning