Step 5 - Set Reset Type and Evaluation Time
Tutorial 2 for Pro Version: Using Report Bands
Step 5 - Set Reset Type & Evaluation Time for Your New Chart
First, set the reset type & reset group for your chart:
By setting the "Reset Type", we are telling Jasper that the calculations for this chart should be reset each time the chart is generated.
KEY CONCEPT
The "Reset Type" for your charts should match the band in which you placed your chart.
Example: My chart was placed in the "Site Group Header Band". Therefore, the Reset Group for my chart should also be set to "Site".
Double-click on the chart in the Site Group Header Band.
Click Chart Data
Set Reset Type to Group
Set Reset Group to your first Group
Next, set the "Evaluation Time" & "Evaluation Group" for your chart:
Click on the chart on your report canvas.
Go to the Properties Tab
Go to Advanced section in the Properties Tab
Set Evaluation Time to Group
Set Evaluation Group to your first group.
KEY CONCEPT
Evaluation Time can be a confusing concept at first, but just remember this simple guideline:
In almost all cases, the “Evaluation Time” should match the band in which you have placed your chart. (i.e. If the chart is in the “Site Name” band, the “Evaluation Time” field should be set to “Site Name” — just like the “Reset On” field.)
As you get familiar with JasperSoft and start playing around with the settings, you will see how these “Reset Type” and “Evaluation Time” fields can be very useful.
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