Bug 103747 [Viewers] calling refresh on treeviewer in treeExpanded function, but it mess
I tried calling refresh on treeviewer in treeExpanded function. The result is it mess up the tree, there is only one children without a label. Code to reproduce: public void createPartControl(Composite parent) { viewer = new TreeViewer(parent, SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL); drillDownAdapter = new DrillDownAdapter(viewer); viewer.setContentProvider(new ViewContentProvider()); viewer.setLabelProvider(new ViewLabelProvider()); viewer.setSorter(new NameSorter()); viewer.setInput(getViewSite()); viewer.addTreeListener(new ITreeViewerListener() { public void treeCollapsed(TreeExpansionEvent event) { } public void treeExpanded(TreeExpansionEvent event) { viewer.refresh(event.getElement()); }}); }
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/AbstractTreeViewer.java
*/
	protected abstract Item[] getItems(Item item);
	/**
	 * Returns the item after the given item in the tree, or <code>null</code>
	 * if there is no next item.
	 * 
	 * @param item
	 *            the item
	 * @param includeChildren
	 *            <code>true</code> if the children are considered in
	 *            determining which item is next, and <code>false</code> if
	 *            subtrees are ignored
	 * @return the next item, or <code>null</code> if none
	 */
	protected Item getNextItem(Item item, boolean includeChildren) {
		if (item == null) {
			return null;
		}
		if (includeChildren && getExpanded(item)) {
			Item[] children = getItems(item);
			if (children != null && children.length > 0) {
				return children[0];
			}
		}
		
		
		Item parent = getParentItem(item);
		if (parent == null) {
			return null;
		}