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/NewTemplateWizard.java
/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.jface.wizard.IWizard#canFinish()
	 */
	public boolean canFinish( )
	{
		return newReportFileWizardPage.isPageComplete( );
	}
	
	public boolean performFinish( )
	{
		final IPath containerName = newReportFileWizardPage.getContainerFullPath( );
		String fn = newReportFileWizardPage.getFileName( );
		final String fileName;
		if ( !fn.endsWith( getFileExtension() ) ) 
		{
			fileName = fn +  getFileExtension(); 
		}
		else
		{
			fileName = fn;
		}
		InputStream streamFromPage = null;
		URL url = Platform.find( Platform.getBundle( ReportPlugin.REPORT_UI ),
				new Path( "/templates/blank_report.rptdesign" ) );
		if ( url != null )
		{
			try
			{