Date Validation - End date before Start date

This may be a very simple validation but I seem to be having trouble. I've got a form which requires a date range to be selected (Date Picker fields)...a Start date, and an End date.
I've created a Function Returning Boolean validation with the code as:
begin
if :P1_END_DATE < :P1_START_DATE then
return false;
else
return true;
end if;
end;This works 99%, except when the date range spans years.
For example, when I select '21-Dec-2010' in the start date and '4-Jan-2011' in the end date. The validation fails, and thinks the end date is before the start date.
Do I need to compare the year part of the date, before doing the rest? Or is the '<' not suited for this sort of check?
Edited by: djston on Dec 20, 2010 12:13 PM

Sorry, false alarm, it looks like I had my logic a little backwards :)

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End date should not less than Start date, else CLEAR it

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If you use the exit event, you will probably have to have the same code on both the start and end date fields since they have a dependancy on each other. Maybe better to try the validate event of the end date so that if either field is changed the event gets fired. You can try the following for validate event
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1
// End date should not less than Start date, else CLEAR it - End

Contract End date should not less than Start date, else CLEAR it

Hello
I put CONTRACT START DATE and CONTRACT END DATE fields on the form. These 2 objects (Date/Time objjects) i pulled them from Satndard tab of pallette and dropped on my layout page design, fine.
Now, am trying to put a validation that the end dat eshould not lower than start date, so, i got a thread as below from Niall,
http://forums.adobe.com/message/1909551
and i did my FormCalc coding under EXIT event of END DATE field as below,
// Pls. note this FormCalc
// End date should not less than Start date, else CLEAR it - Begin
var stDate
var endDate
stDate = xfa.resolveNode("CUSTOMER.Page31_Contracts.Con_Whole_Page.CON_Basic_Info.CON_START_DATE") .rawValue
endDate = xfa.resolveNode("CUSTOMER.Page31_Contracts.Con_Whole_Page.CON_Basic_Info.CON_END_DATE").r awValue
if (stDate > endDate) then
xfa.host.messageBox("End date is lower than Start date! End date is cleared")
xfa.resolveNode("CUSTOMER.Page31_Contracts.Con_Whole_Page.CON_Basic_Info.CON_END_DATE").r awValue = null
endif
// End date should not less than Start date, else CLEAR it - End
I tried in VALIDATE, CALCULATE, CHANGE events of END DATE, but nothing working!!
PLs. let me kow how can i achieve my requirement? I am anewbie,
Thank you

http://forums.adobe.com/message/4264933#4264933

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