how to increament account balance from zero to some amounts?

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hi all,

i have been developing one website application using ASP.NET with c#.

the thing is i would be need to develop AUTO TOPUP which means the repeat payment.

i have 4 douts in my application ,

step 1. the customer having some amount in to their account .

for example they have 500 rupees on 30/04/2013 in to their account.

step 2. After some certain dates left , the same customer amount has zero balance.

for example on 5/05/2013 customer account have zero balance.

step 3. at this time customer need to subscribe auto top up option which is followed by the website.

step 4. my question is how do i increment customer account balance from zero to some 50,100. or whatever it is.

and this step will do frequently once customer met zero balance in their account,

so this is my problem, so please consider this thoughts as i mentioned above and give me a drop of solution or else give a corresponding link which is related to AUTO TOP UP or else give me an idea how do i create AUTO TOPUP .

please let me know if have any idea or solution.

advices are appreciable....

Posted 30-Apr-13 3:23am

stellus

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[no name] 30-Apr-13 9:32am

where are you stuck ?

Thanks7872 1-May-13 0:43am

what do you mean by this line step 3. at this time customer need to subscribe auto top up option which is followed by the website.

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Mohd Wasif · Answer 1 · 2013-04-30T03:45:00

Solution 1

If you are using SQL Server and you want to update balance as soon as balance becomes 0 then create job.

Posted 30-Apr-13 3:45am

Mohd Wasif

Thanks7872 · Answer 2 · 2013-04-30T18:48:00

(With Sql server DB)You can perform this operation with the use of triggers.A trigger is a special kind of a store procedure that executes in response to certain action on the table like insertion, deletion or updation of data.So in your case when customers balance becomes zero you can use trigger to be fired.For more on triggers have a look at Triggers in SQL