Bug 120503 Cascading Parameter can not drop into layout
Details: Cascading Parameter can not drop into layout Step: 1.Open a report design and Create a Sample Data Source and data set by "select * from CLASSICMODELS.CUSTOMERS" 2.New a cascading parameter and create CUSTOMERSNUMBER and CUSTOMERSNAME in parameter named number and name. Press OK 3.Drop parameter name into layout. Actual results: The parameter in Cascading Parameter Group can not drop to layout
UI/org.eclipse.birt.report.designer.ui.ide/src/org/eclipse/birt/report/designer/ui/ide/wizards/NewReportWizard.java
else
		{
			container = (IContainer) resource;
		}
		final IFile file = container.getFile( new Path( fileName ) );
		final String cheatId = cheatSheetId;
		final boolean showCheat = showCheatSheet;
		try
		{
			if ( file.exists( ) )
			{
				file.setContents( stream, true, true, monitor );
			}
			else
			{
				file.create( stream, true, monitor );
			}
			stream.close( );
		}
		catch ( IOException e )
		{
		}
		monitor.worked( 1 );
		monitor.setTaskName( OPENING_FILE_FOR_EDITING );
		getShell( ).getDisplay( ).asyncExec( new Runnable( ) {
			public void run( )
			{
				IWorkbench workbench = PlatformUI.getWorkbench( );
				IWorkbenchWindow window = workbench.getActiveWorkbenchWindow( );
				IWorkbenchPage page = window.getActivePage( );