Bug 142691 Switch between the window of two design file. The display of the binding list is abnormal.
Description: Switch the window of between two design file. The display of the binding list is abnormal. Step to reproduce: please refer to the screenshot Actual result: The first design files binding data set list will display the second ones.
UI/org.eclipse.birt.report.designer.ui.editors/src/org/eclipse/birt/report/designer/ui/editors/MultiPageReportEditor.java
/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.ui.part.WorkbenchPart#getAdapter(java.lang.Class)
	 */
	public Object getAdapter( Class type )
	{
		if ( type == IReportProvider.class )
		{
			if ( reportProvider == null )
			{
				reportProvider = new FileReportProvider( );
			}
			return reportProvider;
		}
		if ( type == ILibraryProvider.class )
		{
			return new LibraryProvider( );
		}
		if ( type == PalettePage.class )
		{
			Object adapter = getPalettePage( );
			updatePaletteView( getActivePageInstance( ) );
			return adapter;
		}