Vb.NET String.Format with ArrayList - vb.net

Question

I'm trying to use an arraylist as the parameter to String.Format.
msg = msg & String.Format("<td>{0}</td>" & _
"<td>{1}</td>" & _
"<td>{2}</td>" & _
"<td>{3}</td>" & _
"<td>{4}</td>" & _
"<td>{5}</td>" & _
"<td>{6}</td>" & _
"<td>{7}</td>" & _
"<td>{8}</td>", param)
where param is an ArrayList and the contents are thus (copied from watch list):
+ (0) 9 {Integer} Object
+ (1) 3 {Integer} Object
+ (2) 5 {Integer} Object
+ (3) "180" {String} Object
+ (4) 0D {Decimal} Object
+ (5) 6.788D {Decimal} Object
+ (6) #3/13/2009# {Date} Object
+ (7) "2004" {String} Object
+ (8) "" {String} Object
But this code throws a FormatException
Index (zero based) must be greater than or equal to zero and less than the size of the argument list.
Am I wrong that it's possible to use an arraylist? If it is possible, any clues as to why it would be throwing such an error?
Thanks

Answer 1

Does it accept an ArrayList?
Did you try:
"<td>{8}</td>", param.ToArray())

Answer 2

You probably need to pass in an object array and not an ArrayList. If you change the code as such you may see what is going wrong:
msg = msg & String.Format("<td>{0}</td>", param)
It should print something like
< td>System.ArrayList< td>
Have you tried this ?
msg = msg & String.Format("<td>{0}</td>" & _
"<td>{1}</td>" & _
"<td>{2}</td>" & _
"<td>{3}</td>" & _
"<td>{4}</td>" & _
"<td>{5}</td>" & _
"<td>{6}</td>" & _
"<td>{7}</td>" & _
"<td>{8}</td>", param.ToArray())