This code snippet determines the last day of the month...

This code snippet determines the last day of the month for a given date. Here's a breakdown of what each line does:

1. var now = Model.Payslip.PaymentPeriod.DateStart;:
   This retrieves a starting date (DateStart) from the PaymentPeriod property of Model.Payslip and assigns it to the variable now.

2. var daysInMonth = DateTime.DaysInMonth(now.Year, now.Month);:
   The DateTime.DaysInMonth method is used to calculate the total number of days in the month of the now date (based on its year and month). This accounts for leap years if the month is February.

3. var lastDay = new DateTime(now.Year, now.Month, daysInMonth);:
   Using the year and month from now and the calculated total days in that month, this creates a new DateTime object representing the last day of the month.

Example:

If now corresponds to 2023-10-05:

• daysInMonth would be 31 because October 2023 has 31 days.
• lastDay would then represent 2023-10-31, the last day of October 2023.

Thus, the snippet calculates the last day of the month for the date stored in Model.Payslip.PaymentPeriod.DateStart.