Bug 130094 [regression] cannot edit group in Cheat Sheets
steps to reproduce: - create a report using Grouped Listing template - switch to Cheat Sheets, start/restart the tutorial - follow the steps to 1) create data source; 2) create data set; 3) bind the data to the table; and 4) edit the group expected behavior: - group dialog should be displayed actual behavior: - error message displayed. please refer to the attached image for detail
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/views/DefaultNodeProvider.java
{
				return false;
			}
		}
		return true;
	}
	protected boolean performEdit( ReportElementHandle handle )
	{
		return false;
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.designer.internal.ui.views.INodeProvider#hasChildren(java.lang.Object)
	 */
	public boolean hasChildren( Object object )
	{
		return getChildren( object ).length > 0;
	}
	/**
	 * Set comparator to control the order of children.
	 * 
	 * @param comparator
	 */
	public void setSorter( Comparator comparator )
	{
		this.comparator = comparator;
	}
}