Question

I’m storing an ArrayList of Ids in a processing script that I want to spit out as a comma delimited list for output to the debug log. Is there a way I can get this easily without looping through things?

EDIT: Thanks to Joel for pointing out the List(Of T) that is available in .net 2.0 and above. That makes things TONS easier if you have it available.

Answer 1

Yes, I’m answering my own question, but I haven’t found it here yet and thought this was a rather slick thing:

…in VB.NET:

String.Join(',', CType(TargetArrayList.ToArray(Type.GetType('System.String')), String())) 

…in C#

string.Join(',', (string[])TargetArrayList.ToArray(Type.GetType('System.String'))) 

The only ‘gotcha’ to these is that the ArrayList must have the items stored as Strings if you’re using Option Strict to make sure the conversion takes place properly.

EDIT: If you’re using .net 2.0 or above, simply create a List(Of String) type object and you can get what you need with. Many thanks to Joel for bringing this up!

String.Join(',', TargetList.ToArray())