On Feb 28, 2011, at 22:36, Deepa wrote:
> I am already displaying a NSTableview with one column. The tableview is
> disabled and I do not allow the user to select any row of the tableview. In
> each row of this column I display a NSTextFieldCell.
>
> Now, I want to add one more column that displays NSButtonCell in a row when
> some condition on that row is satisfied. User should be able to click on this
> button and send some action.
>
> If I disable the tableview or if I do not allow the user to select the row
> of a tableview, the button cell does not take any action. How do I achieve
> this?
You should be able to achieve this using the
'tableView:shouldTrackCell:forTableColumn:row:' delegate method of NSTableView:
http://developer.apple.com/library/mac/#documentation/Cocoa/Reference/NSTableViewDelegate_Protocol/Reference/Reference.html
You may have to leave the table enabled, though, and use other means to prevent
row selection and cell editing from working.
> Also, what is the best way to conditionally add a cell to a row?
Probably using another delegate method, 'tableView:dataCellForTableColumn:row:'
(in the same document).
Also, although it's not documented and so perhaps can't be relied upon, but
I've found that you can return 'nil' from this method to use the normal cell
for the row/column. That saves a bit of work if you only need to supply a cell
for a few special rows.
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