deleting from array list

[sarris]

Hi there,
I have this loop to delete elements from an arraylist

For i = 0 To myarraylist.count - 1
            If some_statement Then
                myarraylist.removeat(i)
            End If
        Next

Is there any risk of having index out of range, as the arraylist gets smaller??
Basicaly the question is if the compiler sets the number of loops at the beggining or checks the myarraylist.count - 1 after every loop...Thanks

[petevick]

Hi,
start at the end of the array, and loop 'backwards'

Pete

[Shaggy Hiker]

You will definitely go out of range unless you do as Pete suggested. If you remove even a single item, then the loop will run past the end of the array. The MyArrayList.Count expression is evaluated the first time only, so it doesn't shrink as the arraylist shrinks.

To loop the other way, start with X = MyArrayList.Count-1 to 0 Step -1