jezzerdilla

Hi, I wonder if this is possible. Can a parameter be used to dynamically change the backcolor property of a rectangle. I have a report thats being used by a number of different customers. Whilst they're all happy with the format of the report, there are a number of rectangles that i'd like to give them a way to choose their colour from the front end. Many thanks for taking the time to think about this Jez

Hi guys, I wonder if anyone can help. I new to Jasper reports and am having problems displaying an image from a BLOB field through Oracle. I've added an image report element to my report and changed the image expression to $F{MY_BLOB_FIELD}, I've changed the expression class. ERROR BELOW I'm sure I'm missing something obvious, any help would be great. Many thanks in advance Jez When I run the report i get the following error: Error filling print... Error evaluating expression : Source text : $F{ROOM_PHOTO} net.sf.jasperreports.engine.fill.JRExpressionEvalException: Error evaluating expression : Source text : $F{ROOM_PHOTO} at net.sf.jasperreports.engine.fill.JREvaluator.evaluate(JREvaluator.java:195) at net.sf.jasperreports.engine.fill.JRCalculator.evaluate(JRCalculator.java:589) at net.sf.jasperreports.engine.fill.JRCalculator.evaluate(JRCalculator.java:557) at net.sf.jasperreports.engine.fill.JRFillElement.evaluateExpression(JRFillElement.java:929) at net.sf.jasperreports.engine.fill.JRFillImage.evaluateImage(JRFillImage.java:1023) at net.sf.jasperreports.engine.fill.JRFillImage.evaluate(JRFillImage.java:1004) at net.sf.jasperreports.engine.fill.JRFillElementContainer.evaluate(JRFillElementContainer.java:258) at net.sf.jasperreports.engine.fill.JRFillBand.evaluate(JRFillBand.java:499) at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillColumnBand(JRVerticalFiller.java:2033) at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillGroupHeader(JRVerticalFiller.java:621) at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillGroupHeaders(JRVerticalFiller.java:543) at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillReportStart(JRVerticalFiller.java:268) at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillReport(JRVerticalFiller.java:128) at net.sf.jasperreports.engine.fill.JRBaseFiller.fill(JRBaseFiller.java:946) at net.sf.jasperreports.engine.fill.JRBaseFiller.fill(JRBaseFiller.java:845) at net.sf.jasperreports.engine.fill.JRFiller.fillReport(JRFiller.java:58) at net.sf.jasperreports.engine.JasperFillManager.fillReport(JasperFillManager.java:417) at net.sf.jasperreports.engine.JasperFillManager.fillReport(JasperFillManager.java:247) at com.jaspersoft.ireport.designer.compiler.IReportCompiler.run(IReportCompiler.java:877) at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:572) at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:997) Caused by: org.codehaus.groovy.runtime.typehandling.GroovyCastException: Cannot cast object 'oracle.sql.BLOB@2f28849' with class 'oracle.sql.BLOB' to class 'java.awt.Image' at org.codehaus.groovy.runtime.typehandling.DefaultTypeTransformation.castToType(DefaultTypeTransformation.java:327) at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.castToType(ScriptBytecodeAdapter.java:602) at report2_1289732619340_640106.evaluate(calculator_report2_1289732619340_640106:247) at net.sf.jasperreports.engine.fill.JREvaluator.evaluate(JREvaluator.java:182) ... 20 more