more on subdataset parameters

[nanako]

I did another experiment, change as follows:

 

<timeSeriesChart>

<chart evaluationTime="Report">

<reportElement mode="Opaque" x="0" y="14" width="750" height="175" />

</chart>

<timeSeriesDataset>

<dataset>

<datasetRun subDataset="history_perf">

<datasetParameter name="startdate">

<datasetParameterExpression>

<![CDATA[$P{startdate}]]>

</datasetParameterExpression>

</datasetParameter>

<datasetParameter name="enddate">

<datasetParameterExpression>

<![CDATA[$P{enddate}]]>

</datasetParameterExpression>

</datasetParameter>

</datasetRun>

 

</dataset>

 

 

<timeSeries>

<seriesExpression>$F{exchange}</seriesExpression>

<timePeriodExpression>$F{order_date}</timePeriodExpression>

<valueExpression>$F{perf_bps}</valueExpression>

<labelExpression></labelExpression>

</timeSeries>

</timeSeriesDataset>

<timeSeriesPlot> <plot/></timeSeriesPlot>

</timeSeriesChart>

 

================

But the error msg is

[java] net.sf.jasperreports.engine.design.JRValidationException: Report design not valid :

[java] 1. Parameter not found : startdate

[java] 2. Parameter not found : enddate

 

 

anyone can help, whether i should put parameter or field here, currently both ways don't work