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Scripting with JavaScript
Figure 6.5. Error logs in Console
This is an expected behavior as the settings in our default policy file (java2.policy) do not allow user
scripts to write a file to the system and the script is trying to write a file named "test" into the system.
JavaScript Cookbook
Alternating colours
To alternate colours in a series of details, declare a count variable in the report header or the group
header, if you are grouping.
// header onRenderBegin
count = 0
In the detail, set the colour based on the modulus of the count and increment count:
// component onRenderBegin
if (count%2==0) setBackgroundColor("Yellow")
else setBackgroundColour("White");
++count;
Hiding and showing components
If you have several components to hide based on a value, declare a boolean that you can check in
renderIf:
// header onRenderBegin
today = new Date();
weekend = today.getDay()==0 || today.getDay()==6;
Now you can check for a weekend (Sunday==0, Saturday==6) and render accordingly:
// component renderIf
weekend
or for weekdays, use not weekend:
// component renderIf
!weekend
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