I tried both methods , they worked just fine
Yes both methods work in each of their respected classes, but the signitures are totally different. How do you add an object to to a ListView Items collection.. ???? It's signiture doesnt support it.

Here are teh ListView's overloaded methods for Add for it's Items collection.

[C#] public virtual ListViewItem Add(ListViewItem);

[C#] public virtual ListViewItem Add(string);

[C#] public virtual ListViewItem Add(string, int);

Now here is the signiture ListBox Items only Add method.
[C#] public int Add(object item);

The ListBox takes a generic Object as a parameter which is VERY NICE, and flexible...

Joan