Question

I have a array list

private ArrayList rps = new ArrayList();

now below code is working fine in 2005 but not in visual studio 2008

int min = Convert.ToInt32(rps.Item(0));
int max = Convert.ToInt32(rps.Item(rps.Count - 1));

Error: System.Collections.ArrayList does not contain a definition for ‘Item’ and no extension method ‘Item’ accepting a first argument of type ‘System.Collections.ArrayList’ could be found (are you missing a using directive or an assembly reference?`

Answer 1

That code wouldn’t work in VS 2005 either. Something similar might work in VB, but not in C#. The C# code would be:

int min = Convert.ToInt32(rps[0]);
int max = Convert.ToInt32(rps.Item[rps.Count - 1]);

However, I’d advise you to start using generic collections such as List<T> instead.