String.Join method that ignores empty strings?

You can do it like this in CSharp:

String.Join(",", arr.Where(s => !String.IsNullOrEmpty(s)));

VB.NET

String.Join(",", myArray.Where(Function(s) Not String.IsNullOrEmpty(s)))

C#

String.Join(",", myArray.Where(s => !string.IsNullOrEmpty(s)))