如何计算一个月内的天数？ [英] How to calculate Number of Days in a month?

问题描述

我已经附加了一个月份和一年的下拉列表，基于我想要计算选定月份和年份的天数，考虑到跳跃（2月）年，所以请尽快给我解决方案

解决方案

这是一个非常困难的Google问题...

http://msdn.microsoft.com/en-us/library/system.datetime.daysinmonth(v=vs.110).aspx [ ^ ]

格式化您的下拉菜单，以便首先选择年份。



根据所选年份，您可以确定年份是否为闰年，如果（年％4 == 0）那么这是闰年！

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

解决方案

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

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!

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