Client side math operation in listbox

asked 2014-05-23 06:32:29 +0800

demizon gravatar image demizon
169 1 6

Hi, I have listbox with 3 columns A,B and sum. I am getting a and values from database. What i need is to sum them up in each row. I tried to do it like this but it doesnt work...:

<listcell label="@load(each.a)"/>
<listcell label="@load(each.b)"/>
 int sum = ${each.nrOfPieces}+$(each.vyrobok.pocetKz);
<label value="${sum}" />

but it doesnt work... thx for any advices

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answered 2014-05-24 21:19:48 +0800

cyiannoulis gravatar image cyiannoulis
1191 10

updated 2014-05-24 21:20:23 +0800

EL expressions can be very powerful. Have a look here.

The following snippet should do the trick:

   <listcell label="@load(bean.amount)" />
   <listcell label="@load(bean.tax)" />
   <listcell label="@load(bean.amount + bean.tax)" />

Hope that helps, Costas

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answered 2014-05-24 01:59:58 +0800

mhj gravatar image mhj flag of Brazil
806 1 7

i don't learned still that, but if it help, you can put a calculated field on java (there are calculated fields for JPA) i did an example here: Example-for-calculate-field

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Asked: 2014-05-23 06:32:29 +0800

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Last updated: May 24 '14

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