wangmin2001
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yes, It works, although I do not know why.
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I check it again, I found return value cannot evaluate in this band, but will work for next entry/band, thus, every entry varaible value is not correct!.
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very sorry to hear that, I encounter same problem now, I also want to know how to caculate based on sbureport return value.
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I am using jsper studio 5.6, I use cherry group report, and use subreport in group to get another table field info, I set variable_1 as return value of subreport, I can display it when I set evaluation time=band. then I define a variables named V1= $F{field}- varables_1, I found it always return null. if I directly input above expression in a text field and set evaluatoin time=band , it works! What's the reason? since I need sum(V1) in group, I have to use V1 instead of text field. what I should do? is it a bug? or is there any propertity I can set?
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I am using table and tableDataset in report, now I place subreport on table field row, hope subreport can get table field value as parameter to query data. but I found subreport can only accept main report field/paramters, not table fields/variables, how to to resolve it ? if jasper do not support it, I have to give up table component, only use main report. thanks!
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Passing values from subreport to a table dataset in iReport
wangmin2001 replied to iaman.alkhalaf's topic in Products
I have similar question, how to pass table field value to subreport as parameters, I found subreport only read main report parameters and fields, not table elements. -
Urgent:run scriptlet to return - document is empty
wangmin2001 replied to wangmin2001's topic in Products
eferrell, thank you very much. I add a simple query for main report ,and it works! I think it's a not good feature since sometimes we do not need a query. aanyway ,thank you very much. -
how can I save report variables value to database?
wangmin2001 replied to wangmin2001's topic in Products
I found sctiptlet code at demo folder. and think it's good idea to write back db. -
HI, I am using scriptlet in jasper studio, I do following steps: 1. copy demo scriptlet java code to netbean project to build a jar file. 2. add jar file to jasper studio java build path (add external jar to studio project java build path) 3. create a new simple report with static text and text fileds. 3. add script class for report properties, 4. define $P{report_scriptlet} properities with script class. then I copy demo code- set text filed expression --> $P{report_scriptlet}.hello() then I run it in studio , it return me "document is empty!" what that mean? I am sure now studio can found my scriptlet, since compile is fine , and console return message : Start Report Execution Compiling report......DONE Setting Data Adapter...DONE Setting Virtualizer...DONE Filling Report........DONE Report Execution Finished. any help is appreciated!
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days function does not work when integrate with web java code
wangmin2001 replied to wangmin2001's topic in Products
I have to add my update info: I I changed report language to groovy from java, and add groovy class into classpath, now it return me : net.sf.jasperreports.engine.fill.JRExpressionEvalException: Error evaluating expression : Source text : ABS($F{QUANTITY}) it seems that I canno use any build-in fuctions in japer studio, inlcude: IF-else, ABS, Days. I found it's becuase there is no jasper mathfuction class. I search all folder, found there have classes at sample folder, I add them, then pass! conclusion: I do not know why jasper do no package mathfunction into jasper lib, but, if you want to use it, you have to include it mannualy. -
days function does not work when integrate with web java code
wangmin2001 posted a topic in Products
HI, I am using jasper5.6.1 in win7,jdk1.7, I use days function in studio to calculate date diff between min_date and max_date, such as : days($V{min_date},$V{max_date}) it works fine in studio, but when I called it from web java application, it always return me following error: net.sf.jasperreports.engine.fill.JRExpressionEvalException: Error evaluating expression : Source text : DAYS($V{min_date},$V{max_date}) I also encountered another IF experession error, I doubt it's java issue, and I check my report language setting, it's "JAVA". if I cannnot use system function, I have to pass all calculated varibles from outside application, it's too complex. could you give me some suggesiton? thanks! -
I calculate variables in jasper report, I want to save its value to database for further reuse. how can I do it? any good suggestion? besides, may i use scriplet to do above job? where can I found scriplet sample code ? thanks!
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html component will always cause publish error- invalid jrxml
wangmin2001 posted a topic in Products
I am using 5.6 eidtion of studio and sever, I found I cannot use html component ,event in a blank report, when I place html component at report, preview is always fine, but when publish, it alway return error mesage: "invalid jrxml". I tried to copy source code at here but failed. the simple method is create a blank report and put html componnent to try it. I think it's studio/server bug. anybody can confirm it? -
I am using studio 5.6 final for report development on my windows7 professional. after hours runing, it always return me OutOfMemeroy, I have to shut it and restart it. besides, studio cannot save password info for datasource and jasper server adaper, everytime I lauch studio, I need to re-input password to make connection, is it a bug?
