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Tree controller bindings and @sum question

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Tree controller bindings and @sum question

Subject: Tree controller bindings and @sum question
From: "Ian G. Gillespie" <email@hidden>
Date: Thu, 26 May 2005 15:44:40 -0400

I have successfully setup a NSTreeController for use with an outline view using Core Data. I want to have a text field that sums the values in one of the table columns. I tried binding the text field to the tree controller's arrangedObjects with a key path of @sum.totalAmount. At run time, however, I get the error [<_NSControllerTreeProxy 0x4e8ce0> valueForUndefinedKey:]: this class is not key value coding-compliant for the key @sum. Does this only work with an array controller and not a tree controller? If so, how would one go about binding a text field to sum the values from a column? _______________________________________________ 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 Follow-Ups: Re: Tree controller bindings and @sum question From: "Ian G. Gillespie" <email@hidden> Prev by Date: Re: reordering NSTableView elements Next by Date: Re: reordering NSTableView elements Previous by thread: drawRect is getting the wrong Rectangle Next by thread: Re: Tree controller bindings and @sum question Index(es): Date Thread