Bug 145303 Parameter dialog didn't show the property change in XML Source
Steps to reproduce: 1.New a string parameter with default value "aaa" 2.Switch to XML Source, change its default value to "bbb" 3.Switch to layout, open the parameter dialog in data explorer Expected result: Default value is changed to "bbb" Actual result: Default value is still "aaa"
UI/org.eclipse.birt.report.designer.ui.editors/src/org/eclipse/birt/report/designer/ui/editors/MultiPageReportEditor.java
if ( page != null )
		{
			pageChange( page.getIndex( ) );
		}
	}
	protected void pageChange( int newPageIndex )
	{
		int oldPageIndex = getCurrentPage( );
		if ( oldPageIndex == newPageIndex )
		{
			return;
		}
		
		if ( oldPageIndex != -1 )
		{
			Object oldPage = pages.get( oldPageIndex );
			Object newPage = pages.get( newPageIndex );
			
			
			super.pageChange( newPageIndex );
			updateRelatedViews( );
			
			if ( !prePageChanges( oldPage, newPage ) )
			{
				super.setActivePage( oldPageIndex );
				updateRelatedViews( );
				return;
			}
		}
		else