NSTableView and Copy/Pasting/Deleting
How does one implement a proper Edit menu when
NSTableViews are involved? I've got a typical
master-detail interface with two tables and some text
fields, all implemented using the bindings system.
I would like the Copy/Paste/Delete commands of the
Edit menu to work on both the text fields (they
already do by default of course) and the tables. Of
course, when one of the tables is highlighted, but
there's no selection in the table, the Copy/Delete
commands should be greyed out.
This seemed like a mundane Cocoa thing that should be
easy to achieve but I'm having a hard time figuring it
out. I took a look at the iSpend example over at the
and strangely, when you highlight the table the
Copy/Paste/Delete commands are *not* greyed out even
if the table is empty! Is this harder to achieve than
I would think it should be?
Where can I find how to implement this properly and
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On Jun 18, 2005, at 4:45 PM, Kris Gybels wrote:
> Where can I find how to implement this properly and
Your controller should implement -validateMenuItem: (see http://
ObjC_classic/Protocols/NSMenuValidation.html). The example on that
page is misleading -- you should check the menu item's selector, not
the title. If the selector is copy:, then check to see if the
current selection is copyable.