How to calculate Number of Days in a month?

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I have attached one dropdownlist for month and one for year based on that i want to calculate no of days in selected month and year with consideration of leap(Feb) year so please give me solution for that ASAP

Posted 15-Sep-14 22:47pm

Dhananjay32

Updated 15-Sep-14 22:48pm

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ChintanShukla 16-Sep-14 4:50am

Homework? What have you tried so far?

George Jonsson 16-Sep-14 4:51am

And why would anyone want to give you a solution ASAP?
Is anyone in this forum working for you?
Ask nicely or in this case, use your search engine.

Dhananjay32 16-Sep-14 4:55am

Ok..

2 solutions

Solution 1

It is a very hard Google problem...
http://msdn.microsoft.com/en-us/library/system.datetime.daysinmonth(v=vs.110).aspx[^]

Posted 15-Sep-14 22:50pm

Kornfeld Eliyahu Peter

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Dhananjay32 16-Sep-14 4:53am

But i want to display number of days of selected month and year in textbox with considering leap year how to do that?

Kornfeld Eliyahu Peter 16-Sep-14 4:55am

YourTextBox.Text = DateTime.DaysInMonth(SelectedYear, SelectedMonth);

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qadirv · Accepted Answer · 2014-09-15T22:51:00

Solution 2

Format your dropdowns so that the year is selected first.

Based on the year selected you can determine if the year is a leap year or not if(year%4 == 0) then it's a leap year!

Posted 15-Sep-14 22:51pm

qadirv

Comments

George Jonsson 16-Sep-14 4:59am

This is not entirely correct
1. Divide the year for which you are trying to determine a leap year by four. If the year is not divisible by four, it is not a leap year. If the year is divisible by four, continue to step two.
2. Divide the year by 100. If the year is not divisible by 100, it is a leap year. If the year is divisible by 100, proceed to step three.
3. Divide the year by 400. If the year is not divisible by 400, it is not a leap year. If it is divisible by 400, it is a leap year.

qadirv 16-Sep-14 9:37am

@GeorgeJonsson Thanks for the update. Yes, the rules for a leap year are more detailed than I had thought. I had to look it up! He's better off sticking to the DateTime class to get the details!

Dhananjay32 22-Sep-14 5:30am

Thank you for replay