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NSComboBox and lack of notification...
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NSComboBox and lack of notification...


  • Subject: NSComboBox and lack of notification...
  • From: Lloyd Sargent <email@hidden>
  • Date: Mon, 28 Mar 2005 21:06:57 -0600

Assume there is a combo box and a button. Before you can proceed you must either
1) Press the button
2) Type something in the combo box

Either way, the combo box must contain a SOMETHING.

When the button is pushed, my code does this:

[comboBox addItemWithObjectValue:value];
[comboBox selectItemWithObjectValue: value];
[[NSNotificationCenter defaultCenter] postNotificationName:@"NSControlTextDidChangeNotification" object: comboBox];

The idea was to simplify my testing of whether someone entered something or whether they pressed the button (it reduced my code a bit).

Now I run into a problem. Here are the steps:

1. Someone pushes the button
2. Value gets stuffed into the combo box (I get a change notification)
3. User deletes what is in the combo box
4. User then selects the just deleted item FROM the combo box (because it is in the list)
5. I get nothing. No notifications, nothing.

Shouldn't I get SOME kind of notification when a user select an item -- even if it is the item that USED to be there?!?

Cheers,

Lloyd
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