I would be appreciative if anyone could help me with my problem.

I want to have a button that if pressed will add a car ID to an array in a sesion object. Could any one help me with how i would create the array in the session object and also how would i update the array with new car ID's.

Split it into two parts:

1) Adding / retrieveing an array from session scope
2) Adding items to an array

So to add items to an array:
aMyArray(3) = NewValue
(note: you may need to ReDim() the array depending on how you declared it)

To save an array to session scope:
session("aSavedArray") = aMyArray

To retrieve the array from session scope:
aMyArray()= session("aSavedArray")

This is only basic so there may be conversion / assignment issues, however if you search google for arrays in VBscript, you should get a number of helpful articles.

Cheers,
Andrew

I have managed to add a carID to a to the first index of an array in a session. however when i try to calculate the length of the array so i know where to put the next ID i get the following error. I want to have one array with a max length of 5.

Microsoft VBScript runtime error '800a01c3'

Object not a collection

it refers to my for statement. everything works ok(i think) up to the for statement, however my array declarations may be wrong. I just can get it to work. could someone please offer dome assistance.

<%
OPTION EXPLICIT
Dim compareArray(4), carID, counter, compareArrays, counter2, compareArrays2

counter= 0
counter2 = 0
carID = REQUEST.FORM("compare")

IF SESSION("compareArray(0)")= "" THEN

 compareArray(0)= carID
 session("compareArray(0)") = compareArray(0)
 
 response.write("test " & session("compareArray(0)"))
END IF
response.write("test " & session("compareArray(0)"))

FOR EACH compareArrays IN session("compareArray")
  counter = counter + 1
 NEXT
response.write(counter)
%>

I don't think you can use an array as a collection.

Additionally, you should probably pull the array from session scope to a local variable if you are going to work with it.

Try reading an from an array using something like this:

For i = 0 to UBound(myArray,2) -1
   Response.write myArray(i)
   Counter = counter + 1
Next

Better check those indices and dimensions though. I always forget whether arrays are 0-based in VbScript or not.

Cheers,
Andrew

Thanks for that andrew, but still having problems.

Sorry to be a pest but how would i put the array in the session object into a local array. I have been trying for hours but keeps going round in circles

As Alan partridge one said "jurassic park". Cracked it after only about eight hours.

Thanks for you help with it Andrew.