Does NSUndoManager work?
Does NSUndoManager work?
- Subject: Does NSUndoManager work?
- From: Ricardo Parada <email@hidden>
- Date: Sat, 08 Oct 2016 12:17:38 -0400
| Hi All,
I have not used the undo manager since the Objective-C days I think. I tried to use it recently but I get an exception. Has anybody used it successfully? For example:
myEO.editingContext().undoManager().beginUndoGrouping(); myEO.setFoo(foo); myEO.editingContext().undoManager().undo();
This code generates this exception:
java.lang.IllegalStateException: undo: undo manager is in invalid state, undo was called with too many nested undo groups
I thought there was something wrong with the undo manager in that editing context. So I tried creating a new NSUndoManager() and calling setUndoManager(myUndoManager) on the editing context. Same result.
I searched on google for that exception and several things came up but nothing that could tell me why it happens.
Thanks, Ricardo Parada
|
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