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Bindings problem with NSPopupButton and placeholders

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Bindings problem with NSPopupButton and placeholders

Subject: Bindings problem with NSPopupButton and placeholders
From: email@hidden
Date: Sat, 20 May 2006 16:20:34 +0200

Hi,

In my app I'm using bindings for almost everything, and thus far they have been great. I have one interface problem however. My app structure is as follows: - My app's objects are listed in an NSTableView using NSArrayController. - Based on the object selection in the NSTableView, the user can set properties (size, color, position) for one or more objects (multiple selection allowed) - One of the properties is the object's position. This can be set using an NSPopupButton and the position is always one of the following 4 choices: top, bottom, left, right. - When multiple objects are selected with different positions the popup displays "Multiple values selected" and "No Selection" if no records are selected. Just the normal master / detail bindings behaviour and no problems here.

However, the problem is that the "Multiple values selected" and "No Selection" items persist in the NSPopupButton as choices once they have been displayed by this NSPopupButton. While I have no problem with these placeholders being displayed when they are appropriate - and I know I can change them - I don't want them to remain in the list of options in the NSPopupButton. The position popup has only 4 options and I don't want users to see/ select the "Multiple values selected" item as a fifth position choice and "No Selection" as a sixth. While I'm quite sure many of our users are smart enough not to select these placeholders, it does not look very polished to ship the app like this.

Any ideas on how to avoid these placeholders from staying in the NSPopupButton? Right now I have set the placeholder string to a whitespace for both the "Multiple values selected" and "No Selection" placeholders. This has the positive effect that only one placeholder is inserted (because they are both identical) but having an extra blank line in the NSPopupButton menu still looks amateurish. I searched the list archives and the web, but to no avail. What would be the best way to fix this?

Thanks,

Peter _______________________________________________ Do not post admin requests to the list. They will be ignored. Cocoa-dev mailing list (email@hidden) Help/Unsubscribe/Update your Subscription: This email sent to email@hidden Prev by Date: Re: Trouble using ANY operator in an NSArrayController search predicate Next by Date: Re: Problems during file writing or During Type Casting ? Previous by thread: Re: Trouble using ANY operator in an NSArrayController search predicate Next by thread: Initial sort column of NSTableView Index(es): Date Thread