On Aug 5, 2008, at 10:45 PM, Tron Thomas wrote:
One thing I found was that if I implemented an action in my
controller and connected it to the button, the controller could then
call the commitEditing method in response to that action. This
could accomplish the same thing as pressing enter in the text field
control.
Yes, that's what -commitEditing is for.
This only works though when the text field has been edited. If the
text had not been edited, the user could still expect the button to
cause the update. It would not be clear to them why the button
wouldn't do anything when no editing had taken place.
I don't understand. If no editing is in progress, then the value in
the model and the value displayed in the text field should already be
in sync.
What is it that you want to happen when the user presses the button?
If there's something that needs to happen above and beyond the text
field's value being pushed to the model, then... just make it happen
in the action method (after the -commitEditing).
One thought I had to make this relationship clear was to disable the
button initially and then enable it only after the text field had
been edited. I found I could do this by using the
objectDidBeginEditing: method. By responding to that method I could
use a binding that would affect the enabled state of the button.
In spite of this, what I also find is it that after implementing the
objectDidBeginEditing: method, the action for the button that calls
commitEditing no longer works. For some reason the control thinks
that no editors need to commit any editing. If I remove the
implementation for objectDidBeginEditing: things work fine. When I
add it back in, things fail.
Sounds like your override of -objectDidBeginEditing: is not calling
through to super. You're effectively replacing the implementation
rather than extending it.
That said, it sounds to me like you're approaching things in a weird
way.
Cheers,
Ken
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