Bug 188544 The display text of parameter's defaul value is not refreshed after changing its datatype and default value[]
Description: The display text of parameter's defaul value is not refreshed after changing its datatype and default value[] Build number: 2.2.0.v20070523-0630 Steps to reproduce: 1, New a parameter and set its datatype to String and default value to 111 2, Preview and check the display text of parameter 3, Go back the parameter and modify its datatype to Integer and default value to 222 4, Preview Expected result: After step4, the display text of parameter is 222 Actual result: After step4, the display text of parameter is 111
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/context/ViewerAttributeBean.java
ParameterAccessor.setClean( request );
		
		__initParameters( request );
	}
	/**
	 * Prepare the report parameters
	 * 
	 * @param request
	 * @throws Exception
	 */
	protected void __initParameters( HttpServletRequest request )
			throws Exception
	{
		InputOptions options = new InputOptions( );
		options.setOption( InputOptions.OPT_REQUEST, request );
		options.setOption( InputOptions.OPT_LOCALE, locale );
		options.setOption( InputOptions.OPT_RTL, new Boolean( rtl ) );
		
		this.parameterDefList = getReportService( ).getParameterDefinitions(
				this.reportDesignHandle, options, false );
		
		if ( this.isDesigner
				&& !IBirtConstants.SERVLET_PATH_FRAMESET
						.equalsIgnoreCase( request.getServletPath( ) ) )
			parseConfigVars( request, parameterDefList );
		
		this.parametersAsString = getParsedParametersAsString(
				parameterDefList, request, options );
		
		if ( documentInUrl )