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
public void treeExpanded(TreeEvent event) {
				handleTreeExpand(event);
			}
			public void treeCollapsed(TreeEvent event) {
				handleTreeCollapse(event);
			}
		});
	}
	/*
	 * (non-Javadoc) Method declared on StructuredViewer. Builds the initial
	 * tree and handles the automatic expand feature.
	 */
	protected void inputChanged(Object input, Object oldInput) {
		preservingSelection(new Runnable() {
			public void run() {
				Control tree = getControl();
				boolean useRedraw = true;
				
				
				if (useRedraw) {
					tree.setRedraw(false);
				}
				removeAll(tree);
				tree.setData(getRoot());
				internalInitializeTree(tree);
				if (useRedraw) {
					tree.setRedraw(true);
				}
			}
		});