after end of the month i need to start the count from 1 in a

selvi subramanian

in a textbox1 i show the data like this 13-1

13 is date and 1 is 1st bill 13 is constant number and i use for loop for like (13-2) after the end of august i need 31-01 bill number i does know the last bill no after 31 august i need to start the 1-01 (september 1-((billno is)01).

for example if the billno end at 450 i show it in textbox as (31-450)(31 is date ,450 is billno)

my need is after 450 for loop show 451 .in september it show like this (1-451)...but my need is (1-01) in september

3 Replies

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Sumit Joshi11y ago
if found helpfull accept the answer.... Thanks Selvi
0

Sumit Joshi11y ago

You want to reset the Bill on every end of the month.

place if condition and check

DateTime.DaysInMonth(1980, 08)

it returs 31 compare it with current date if both equals then reset the bill no. counter 
variable

Khan Abrar Ahmed11y ago

HI try the below logic

DateTime date = ... 
var firstDayOfMonth = new DateTime(date.Year, date.Month, 1); 
var lastDayOfMonth = firstDayOfMonth.AddMonths(1).AddDays(-1);

1. if it is first day of month then reset you counter to one and increment 
your bill no till last day of month, and again if it is first day
 of month then reset the counter.