删除正确选择的NSManagedObjects [英] Remove correctly selected NSManagedObjects

问题描述

看看这个很棒的屏幕截图，我想你可以想象我会问的...

Look at this great screenshot and I think you can imagine what I could ask...

屏幕快照http://a4.s3.p.quickshareit.com/files/screenshot_75d0fc54a05ec7eae3f410.png 玩家:

右侧的

:首选项面板和NSTableView
左侧:带NSPopUpButton的主窗口(在NSMenu;]下)

to the right: the preferences-panel and a NSTableView
to the left: main-window with a NSPopUpButton (under the NSMenu ;] )

弹出窗口中选定的对象已绑定到表视图中的其中之一.当我从表视图中删除(在选定的弹出窗口中)对象时，就会出现此丑陋的事情(在那里您可以看到). 我正在使用CoreData，并且NSArrayController已绑定到一个实体.

The selected object of the popup is binded to one of these in the tableview. This ugly thing (what you can see there) appears when I remove the (in the popup selected) object from the tableview. I'm using CoreData and the NSArrayController is binded to one Entity.

我发现2件事有趣:

NSManagedObjectContextObjectsDidChangeNotification  
[NSPopUpButton synchronizeTitleAndSelectedItem];

首先，我知道何时有人从表视图中删除项目；不幸的是，第二个不适用于我的问题...

With the first I know when someone removes a item from the tableview; the second doesn't work unfortunately for my problem...

那么有什么主意如何炸开这个丑陋的东西吗? = D

So any idea how to blast away this ugly thing? =D

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推荐答案

我知道了！
我只是取消绑定了NSPopUpButton的选定对象，然后再次将其绑定.从列表中删除所选对象时，它将执行此操作only. ;)

I have it!
I just unbinded the selected object of the NSPopUpButton and binded it again. It performs this action only when the selected object was removed from list. ;)

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