Bug 140985 Cancel button in parameter dialog doesn't work
Description: Cancel button in parameter dialog doesn't work Steps to reproduce: 1. New a parameter 2. Preview and click Cancel Expected result: Transfer to layout Actual result: Nothing happened.
UI/org.eclipse.birt.report.designer.ui.preview/src/org/eclipse/birt/report/designer/ui/preview/editors/ReportPreviewFormPage.java
{
		super.setInput( input );
	}
	/**
	 * Get parameter values from config file.
	 * 
	 * @return Map
	 */
	private Map getConfigVars( )
	{
		HashMap configVars = new HashMap( );
		String reportDesignName = this.getFileUri( );
		
		String configFileName = reportDesignName.replaceFirst(
				SUFFIX_DESIGN_FILE, SUFFIX_DESIGN_CONFIG );
		ReportDesignHandle handle = null;
		try
		{
			
			SessionHandle sessionHandle = SessionHandleAdapter.getInstance( )
					.getSessionHandle( );
			File configFile = new File( configFileName );
			
			if ( configFile != null && configFile.exists( )
					&& configFile.isFile( ) )
			{
				handle = sessionHandle.openDesign( configFileName );
				if ( handle != null )
				{