CODEWITHSUNDEEP
javaeclipsedialogswt
user847988
user847988

Reputation: 984

CheckedTreeSelectionDialog check elements initially

I am using a CheckedTreeSelectionDialog and I want to select initially some items.

How do I use the method setInitialSelections to select children (level2 items) and not level1.

CheckedTreeSelectionDialog dialog = new CheckedTreeSelectionDialog(
    this.containerComposite.getShell(), new myLabelProvider(), new
    myContentProvider());

dialog.setContainerMode(true);
dialog.setInput(new MyModel());

Parent p = new Parent("I am a parent");
p.getChildren.add(new Child("I am a child"));
dialog.setInitialSelection(p);

The child is not selected when containerMode is false and when is true like the example it selects all the children.

Upvotes: 4

Views: 397

Answers (2)

DrKaoliN
DrKaoliN

Reputation: 1402

Make sure that you do your
dialog.setInitialElementSelections(model.getAllElements());
before you open your dialog: dialog.open();
because otherwise it won't work.

I had the same problem - I could only mark the fisrt level element. The solution was to make sure that these methods are working in the ITreeContentProvider implementation class: 

// this is the object that would get passed into setInput()
private MyModelProvider model; 

@Override
public void inputChanged(Viewer viewer, Object oldInput, Object newInput) 
    this.model = (MyModelProvider ) newInput;
}

@Override
public Object getParent(Object element) {
    if (element instanceof Child)
        return model.getCategories().get(0);    // I only have one category 
    return null;
}

Upvotes: 1

Baz
Baz

Reputation: 36884

Just use the method SelectionDialog#setInitialElementSelections(List elements) and pass the elements you want to be selected in a List:

CheckedTreeSelectionDialog dialog = new CheckedTreeSelectionDialog(
this.containerComposite.getShell(), new myLabelProvider(), new myContentProvider());

dialog.setContainerMode(true);
dialog.setInput(new MyModel());

List<Child> list = new ArrayList<Child>();

/* fill your list */

dialog.setInitialElementSelections(list);

Upvotes: 1

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