You enclose an af:table inside an af:panelCollection; however, you do not see the menus that allow
you to hide/show columns of freeze columns at run time.
What is the reason for this?
A.
You need to include a new menu component in the menus facet of af:panelCollection.
B.
This is probably a limitation of the browser you are using.
C.
Your table is not based on ADF Business Components, but rather on another type of data control.
D.
The columnSelection attribute of your table is set to none or not set at all.
Explanation:
columnSelection decides whether columns in this table are selectable.
Valid Values: none, single, multiple
http://docs.oracle.com/cd/E48682_01/apirefs.1111/e12419/tagdoc/af_table.html