I am just starting with Cocoa and I am having a problem in setting
the starting index of a NSComboBox control. On startup, the index
is not set although the first item is displayed. You have to make a
selection to enable the combo box and set an index. In my app, I
would like the first item to be selected on startup. I assume the
following code:
[calcTypeField selectItemAtIndex:0];
will work, but I cannot determine where to place the code to effect
the selection on startup.
You know how to spell "effect;" I like the cut of your jib.
You are no doubt aware of this:
When you set or retrieve a combo box’s value with the standard
NSControl methods (such as setStringValue:, stringValue,
setFloatValue:, and floatValue), you’re setting or retrieving the
value of the combo box’s text field, and not the current selection
of the list. Programmatically changing the combo box’s value does
not change what’s selected in the combo box’s list. Conversely,
programmatically changing what’s selected in the list does not
change the text field’s value. If you want the text field value and
the list selection to match up, you need to set them individually.
In other words, a combo box is a text field, not a popup menu. When
you follow George's advice to initialize in -awakeFromNib, you have
to set both item and text if that's what you want.
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