title: ICollection<string> to string[]
body: <p>I have a object of type <code>ICollection&lt;string&gt;</code>.  What is the best way to convert to <code>string[]</code>.  </p>
  
  <p>How can this be done in .NET 2?<BR>
  How can this be done cleaner in later version of C#, perhaps using LINQ in C# 3?</p>