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NSComboBoxCell auto completion
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NSComboBoxCell auto completion


  • Subject: NSComboBoxCell auto completion
  • From: Ivan Myrvold <email@hidden>
  • Date: Fri, 9 May 2003 16:01:25 +0200

I have some problems implementing auto completion for a NSComboBoxCell in an NSTableView.

I have added self as an observer to NSControlTextDidChangeNotification with getItemsInTable as the selector.
Here is the code for it:

- (void)getItemsInTable:(NSNotification *)notification {
NSText *fieldEditor = [[notification userInfo] objectForKey:@"NSFieldEditor"];
NSTableColumn combocolumn = [[[notification object] tableColumns] objectAtIndex:0];
NSComboBoxCell *comboCell = [combocolumn dataCell];
int row = [[notification object] selectedRow];
NSString *startchars = [fieldEditor string];

( select something from mydatabase where myfield like chars% )
... getting an array from database to populate the comboCell, where the array have items all starting with startchars


When I start typing in the NSComboBoxCell, I do not get any auto completion, but if I after having typed a few characters press the enter key, which selects the recently typed characters, and then press the right arrow to set the insertion point after the typed characters, I suddenly have auto completion.

All this is working flawlessly for a single NSComboBox. I just wonder what the difference between NSComboBox and NSComboBoxCell could be?

Ivan
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