Bug 191685 [regression]Set default value doesn't work in Report Parameter[0705]
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/ParameterDialog.java
{
				formatCategroy = inputParameter.getCategory( );
				if ( formatCategroy == null )
				{
					formatCategroy = DesignChoiceConstants.STRING_FORMAT_TYPE_UNFORMATTED;
				}
				formatPattern = inputParameter.getPattern( );
			}
		}
		updateFormatField( );
	}
	private List getColumnValueList( )
	{
		ArrayList valueList = new ArrayList( );
		DataEngine engine;
		try
		{
			String queryExpr = getExpression( columnChooser.getText( ) );
			if ( queryExpr == null || queryExpr.equals( "" ) )
			{
				return Collections.EMPTY_LIST;
			}
			engine = DataEngine.newDataEngine( DataEngineContext.newInstance( DataEngineContext.DIRECT_PRESENTATION,
					null,
					null,
					null ) );
			BaseQueryDefinition query = (BaseQueryDefinition) DataUtil.getPreparedQuery( engine,
					getDataSetHandle( ) )
					.getReportQueryDefn( );
			ScriptExpression expression = new ScriptExpression( queryExpr );