Bug 211710 [Regression] Data of cascading parameters in the report extended from the library can not be selected from the drop-down list when preview [01]
Description: Data of cascading parameters in the report extended from the library can not be selected from the drop-down list when preview. Build number: 2.2.2.v20071203-0630 Steps to reproduce: 1. New a Library with cascading parameters. 2. New a report and extend the cascading parameters from the library and preview. Expected result: Values can be selected from the drop-down list. Actual result: Values can not be selected from the drop-down list. Error log: N/A
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/api/impl/GetParameterDefinitionTask.java
Object userData )
			{
				return visitParametersInGroup( group, userData );
			}
		}.visit( (ReportDesignHandle) runnable.getDesignHandle( ) );
		return values;
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.engine.api.IGetParameterDefinitionTask#getDefaultParameter(java.lang.String)
	 */
	public Object getDefaultValue( IParameterDefnBase param )
	{
		return ( param == null ) ? null : getDefaultValue( param.getName( ) );
	}
	public Object getDefaultValue( String name )
	{
		ReportDesignHandle report = (ReportDesignHandle) runnable
				.getDesignHandle( );
		ScalarParameterHandle parameter = (ScalarParameterHandle) report
				.findParameter( name );
		if ( parameter == null )
		{
			return null;
		}
		usingParameterValues( );
		
		String expr = parameter.getDefaultValue( );
		String dataType = parameter.getDataType( );