LeftBarButtonItem in forms?

I found the ToolbarItems stuff, but I would like 1 item to be on the left (LeftBarButtonItem in iOS) and 1 item to be on the right (RightBarButtonItem in iOS). Is this possible?

I am trying to popup a modal page with a listview. The left toolbar item would be the Close to pop down the modal page and the right toolbar item would be the Edit to turn on the edit mode of the listview to delete items.