Date Set analysis

[ch_riadh]

Hi guys.

I did a Master Calendar work fine.

In my Expression i have to use 'Postdate'. it Works Fine. with this expression :

Sum({$<Postdate ={">=$(=MonthStart(varSelectDate))<=$(=varSelectDate)"}>} Value_Exp))

But when i Select 2 month, it gave me the data for the last month, i want the data for 2 months.

exp:

FEB = 20

MAR: 10

When i select feb and mar he give me only 10 , But i i need 30.

I know that the problem is related to Monthstart but i don't know how i can resolve it.
plz need help emergency.

thanks

[tresesco]

Define your variables like:

varSelectDateMin = Date(Min(Postdate))

varSelectDateMax = Date(Max(Postdate))

And expression like:

Sum({$<Postdate ={">=$(=MonthStart(varSelectDateMin))<=$(=varSelectDateMax)"}>} Value_Exp))

But eventually(if you are supposed to select in the month field) it seems to be equivalent to simple: Sum(Value_Exp)