How to reload NSOutlineview


I’m displaying the files browser folder name in NSOutlineview. I tried this from
I need, If i create new folder in via programmatically or in finder. so how do i reload it. thats i need one. Can anybody help how to reload it, I tried all the way, still not reload. I’m using the code from here … tem_h.html

And also my Stackoverflow question is … utlineview

can anybody help me to resolve this issue