When I use the node editor, in cycles render view, the object isn't affected in 3Dview, even if I turn into rendered mode....

When I use the node editor, in cycles render view, the object isn't affected in 3Dview, even if I turn into rendered mode. It's displaying only on preview window in material region but not in 3D VIEW. Did I miss something?
  • Kent Trammell replied
    Is your 3D viewport paused?
  • coolgamer replied
    I find the solution, thanks, when i create a new material, i forgot to delete the oldest so I could'nt displaying the results on 3DVIEW.