FROM : Sherm Pendley
DATE : Wed Jul 05 08:33:24 2006
On Jul 5, 2006, at 1:32 AM, Rex Fernando wrote:
> I have a table with data in it. When someone clicks the remove
> button, I get the selection array and remove all the objects in it.
> If there is an empty selection, I am told index out of bounds,
> naturally, because there are no items in the array. Can I just
> leave this error? Or should I make a catch for it?
Are you using bindings? If so, you can bind the button's "enable"
property to the array controller's "canRemove" key. In addition to
avoiding the problem, it gives the user positive feedback; the delete
button will only "light up" when something is selected.
sherm--
Cocoa programming in Perl: http://camelbones.sourceforge.net
Hire me! My resume: http://www.dot-app.org
DATE : Wed Jul 05 08:33:24 2006
On Jul 5, 2006, at 1:32 AM, Rex Fernando wrote:
> I have a table with data in it. When someone clicks the remove
> button, I get the selection array and remove all the objects in it.
> If there is an empty selection, I am told index out of bounds,
> naturally, because there are no items in the array. Can I just
> leave this error? Or should I make a catch for it?
Are you using bindings? If so, you can bind the button's "enable"
property to the array controller's "canRemove" key. In addition to
avoiding the problem, it gives the user positive feedback; the delete
button will only "light up" when something is selected.
sherm--
Cocoa programming in Perl: http://camelbones.sourceforge.net
Hire me! My resume: http://www.dot-app.org
| Related mails | Author | Date |
|---|---|---|
| Rex Fernando | Jul 5, 07:32 | |
| Chris Suter | Jul 5, 07:49 | |
| Sherm Pendley | Jul 5, 08:33 | |
| Julio Cesar Silva… | Jul 5, 14:15 | |
| Steve Bird | Jul 5, 15:08 | |
| Daniel Jalkut | Jul 6, 19:22 | |
| Steve Christensen | Jul 6, 22:00 | |
| I. Savant | Jul 7, 14:41 |






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