First item or last item of my list is blank

Hello, I am using a listviewer in my app and I am creating a list from text to add it to it :

And a blank space appears at the first or at the last position of my list, any ideas to avoid that ?

Thanks !

In your list of suburbs, do you use:

comma, separated, values

or are you using:

comma,separated,values

I am using this one