I have Areas tab which contain grid with some calculations. That calculations depends from area which is selected. Situation is next: One object can have several areas, and when I open Areas tab, it calculates good but, when in object I change Area from one to another, value in calculations stays from previous. On the other words: it not get updated. I am using this code:
[Control(“TabPage”)]
class TabLineAreaGroup
{
public void pageActivated()
{
PMCContractArea contractArea;
AmountMST sumContractArea;
super();
pmcContractLine_ds.readCommonAreas(pmcContractLine);
h1_h2.realValue(pmcContractLine_ds.h1_h2(pmcContractLine));
efa.realValue(pmcContractLine_ds.efa(pmcContractLine));
bfa.realValue(pmcContractLine_ds.bfa(pmcContractLine));
mfa.realValue(pmcContractLine_ds.mfa(pmcContractLine));
sumArea.realValue(h1_h2.realValue() + efa.realValue() + bfa.realValue() + mfa.realValue());
while select AreaSelector, sum(RentalValue)
from contractArea
group by AreaSelector
where contractArea.ContractId == pmcContract.ContractId
&& contractArea.RentalObjectId == pmcContractLine.RentalObjectId
{
sumContractArea += contractArea.RentalValue;
switch (contractArea.AreaSelector)
{
case PMEAreaSelector::CommonAreaBuilding :
contractAreaBFA.realValue(contractArea.RentalValue);
break;
case PMEAreaSelector::CommonAreaSection :
contractAreaEFA.realValue(contractArea.RentalValue);
break;
case PMEAreaSelector::PrimaryArea, PMEAreaSelector::SecondaryArea :
contractAreaH1_H2.realValue(contractArea.RentalValue);
break;
case PMEAreaSelector::CommonAreaFixed :
contractAreaMFA.realValue(contractArea.RentalValue);
break;
}
}
contractAreaSum.realValue(sumContractArea);
}
}
What I need to add in this code, so when area is changed to update the calculations in grid ? Or how to write a event handler for this change ?