// treeItem can be null when view is opened
if (treeItem == null || treeItem.isDisposed()) {
return;
}
IPropertySheetEntry entry = (IPropertySheetEntry) treeItem.getData();
entry.applyEditorValue();
}
/**
* Creates the child items for the given widget (item or tree). This
* method is called when the item is expanded for the first time or when an