How to convert Years into Days in asp .net

Hi, I think if you want to calculate days including leap year then you have to pass year range that is from year and to year instead of total years.

This code will help you :

            int mStartYear = 2015; // Pass as per your requirement

            int mLastYear = 2015; // Pass as per your requirement

            DateTime mStartDate = new DateTime(mStartYear, 1, 1);

            DateTime mEndDate = new DateTime(mLastYear, 12, 31);

            double mDays = (mEndDate - mStartDate).TotalDays + 1;

            MessageBox.Show(mDays.ToString());

 DateTime firstdate = DateTime.Now.AddYears(-1);
            DateTime todaydate = DateTime.Now;
            int diff = todaydate.Subtract(firstdate).Days;

Only I want to convert year i:e 5 years to how many days including leap year

• 1 year = 365 days
• 1 month = 30 days

Then the following code would do the job:

DateTime startDate = new DateTime(2010, 1, 1);
DateTime endDate = new DateTime(2013, 1, 10);
var totalDays = (endDate - startDate).TotalDays;
var totalYears = Math.Truncate(totalDays / 365);
var totalMonths = Math.Truncate((totalDays % 365) / 30);
var remainingDays = Math.Truncate((totalDays % 365) % 30);
Console.WriteLine("Estimated duration is {0} year(s), {1} month(s) and {2} day(s)", totalYears, totalMonths, remainingDays);