NSUndoManager beginUndoGrouping and endUndoGrouping
NSUndoManager beginUndoGrouping and endUndoGrouping
- Subject: NSUndoManager beginUndoGrouping and endUndoGrouping
- From: Marcos Trejo Munguia <email@hidden>
- Date: Mon, 15 Jan 2007 16:36:28 -0600
Dear List,
I have never used NSUndoManager at all, I read through the API
documentation and maybe I didn't get the idea, I believed that
beginUndoGrouping and endUndoGrouping were used to mark the beginning
and the end of an undo group. I'm using beginUndoGrouping and
endUndoGrouping as follows:
private EOEditingContext ec = new EOEditingContext();
public void select() {
...
ec.undoManager().beginUndoGrouping();
....
}
public void save() {
try {
ec.saveChanges();
} catch (Exception e) {
ec.undoManager().endUndoGrouping();
ec.undoManager().undoNestedGroup();
}
}
What I see is almost everything in the editing context being undone.
Can somebody please tell me what am I doing wrong?
Thanks in advance!
Cheers
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