StringCollection.Contains Method determines whether the specified string is in the StringCollection.
Imports System Imports System.Collections Imports System.Collections.Specialized Public Class SamplesStringCollection Public Shared Sub Main() Dim myCol As New StringCollection() Dim myArr() As [String] = {"RED", "orange", "yellow"} myCol.AddRange(myArr) If myCol.Contains("orange") Then Console.WriteLine("The collection contains ""orange"" at index {0}.", myCol.IndexOf("orange")) Else Console.WriteLine("The collection does not contain ""orange"".") End If End Sub 'Main Public Shared Sub PrintValues(myCol As IEnumerable) Dim obj As [Object] For Each obj In myCol Console.WriteLine(" {0}", obj) Next obj Console.WriteLine() End Sub End Class