ksk Posted June 2, 2015 Share Posted June 2, 2015 Trying to put the following expression in the Data Source Expression:((net.sf.jasperreports.engine.data.JRXmlDataSource)$P{REPORT_DATA_SOURCE}).dataSource("/Northwind/Customers") It gives an error in the expression editor that says:Current expression is not valid. Please verify it!I know that is a valid expression so why would it be getting this error? Link to comment Share on other sites More sharing options...
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