On Aug 19, 2008, at 21:39, R T wrote:
I have a Core Data Document-based Application.....a document window with a tableview, a text view and a button. When the button is selected, a number is read from the text field and that many objects are programatically added to the tableview. Then a sheet is opened. The tableview presents only part of the attributes of an entity. The sheet will present the remaining attributes in it's own tableview. My problem is that I need the sheetController to have access to the myDocument.h instance variable, NSArrayController *tableController, which is bound to the managedObjectContext. I'm having trouble with this. Is the instance variable of the document available to the sheet?
The easiest way is probably to subclass NSWindowController, putting the sheet window in its own NIB file and setting the class of File's Owner to your window controller subclass. Your window controller can be initialized with any properties you need (such as the document), which means you can bind various interface items in the NIB file through File's Owner.document (or whatever).
I wouldn't recommend referring to objects in the underlying window's interface in your sheet. (So, don't refer to document.tableController from the sheet.) Instead, make properties of your document object that contain the data that the sheet needs.
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