Calculate salary for week based & distributed Month end

Question

   I want to generate payroll for employees those are getting weekly salary.

Salary distributed at end of the month. So month end i have to calculate the salary based on each and every week. one week can assume from Mon to Sun(7 days) .

For ex,July month salary has to calculate

  sal=    01-07-16 to 03-07-16(friday to sun) +

         04-07-16 to 10-07-16(mon to sun) +

       11-07-16 to 17-07-16(Mon to sun) +

      18-07-16 to 24-07-16(mon to sun) +

       25-07-16 to 31-07-16(mon to sun).

   Each and every week their will be OT ,Allowance, Deductions,Paid Leave.

 

      Here How to Split the week (Monday to Sunday) for the given salary date? Then only I can salary and OT for each and every week. I tried a code. It’s good for monthly salary but not correct for weekly salary.. 

I used Employee clocker punches as input. Based on that am calculating the working days. 

 

Private void calculatePayroll(string ID, DateTime FromDate, DateTime ToDate)
    {
        float cworkedDay = 0, cPaidLeave = 0, cAbsent = 0;
        TimeSpan vWorkHr, vweekOT, vsatOT, vsunOT;
        while (FromDate <= ToDate)
        {
            var objAttMas = getAttendance(EmpID, FromDate);
            var objLeaveMas = getLeave(empID, FromDate)if (objAttMas != null) //Present
            {
                if (FromDate.DayOfWeek.ToString() == "Sunday") //Allowance for Sunday work
                {
                    sunOT = sunOT + sunOT
                }

                if (FromDate.DayOfWeek.ToString() == "Saturday") //Saturday 5 hr work
                {
                    if (totalHour < new TimeSpan(5, 0, 0))
                    {
                        totalHour = WorkHr + totalHour )
                        ;
                    }
                    else
                    {
                        satOT = satOT + totalHour - new TimeSpan(5, 0, 0) )
                        ;
                        WorkHr = WorkHr + TimeSpan(5, 0, 0) )
                        ;
                    }
                }
                else //Week day work
                {
                    WorkHr = WorkHr + totalHour
                }

                cworkedDay += float.Parse(noOfDay.ToString());
            }

            if (objLeaveMas != null) //Leave
            {
                var objleaveType = getLeaveType(leaveType)if (objleaveType != null) //
                {
                    if (FromDate.DayOfWeek.ToString() == "Saturday")
                    {
                        if (objleaveType.incWeekend == 1)
                        {
                            cPaidLeave += float.Parse(objLeaveMas.noOfDay.ToString());
                        }
                        else
                        {
                            cAbsent += float.Parse(objLeaveMas.noOfDay.ToString());
                        }
                    }
                    else
                    {
                        if (objleaveType.paidLeave == 1)
                        {
                            cPaidLeave += float.Parse(objLeaveMas.noOfDay.ToString());
                        }
                        else
                        {
                            cAbsent += float.Parse(objLeaveMas.noOfDay.ToString());
                        }
                    }
                }
            }

            if (objAttMas != null && objLeaveMas != null) //Absent
            {
                if (FromDate.DayOfWeek.ToString() != "Sunday)
                {
                    cAbsent += 1;
                }
            }

            FromDate = FromDate.AddDays(1);
        } //End of For loop
    }