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Persist selection on tree viewer on restart of application using memento [message #1275666]

Sun, 23 March 2014 08:08

Eclipse User

am using memento for persisting views.
I am not able to persist selection on tree viewer I have the following code in save state

IStructuredSelection selection = (IStructuredSelection) viewer.getSelection()
Then I am storing this as selection.toString in memento

While restoring
IMemento storedSelection = memento.getChild("StoredSelection");
viewer.setSelection(new structured selection (selection) );

When setting selection on tree viewer I am getting proper value
but in selection change event it is telling empty selection due to which no selection is retained on tree

I am right now trying for single selection of tree
I would like to do tdo for multiple selections also

Please provide working sample code

Re: Persist selection on tree viewer on restart of application using memento [message #1313377 is a reply to message #1275666]

Thu, 24 April 2014 17:29

Eclipse User

You have to also save and restore the collapsed state of your tree. Furthermore, the saved selection is no longer the object that is in the new tree.

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