Initialize Tree List View with Buttons : I have an TreeListView with three columns. The first displays the name of a file, and the other two must have buttons that allow to perform download and delete actions. 

However, to initialize this TreeListView, I first call a method that returns a list of strings with the file names. How do I get the names of these files to load in the first column of TreeListView, accompanied by the buttons in the other two columns?

Thanks.