On May 3, 2010, at 6:59 AM, John Stoneham wrote:

Here's an example to illustrate the idea. On the preferences page there is a combo box, where the user can pick a "theme" or enter the name of a new
theme. The settings for the theme are some check buttons which have
different states for the different themes. Obviously, the current state is easy with NSUserDefaults. But I can't figure out how to have each "theme"
state stored in NSUserDefaults.

You can store the theme-specific data in a nested dictionary in the defaults. But I'm not sure if the user-defaults support in bindings knows how to get and set nested items in keypaths.

—Jens_______________________________________________

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