how to compare between two dates by months and years in asp.net c sharp code example

Example 1: total months between two dates c#

((date1.Year - date2.Year) * 12) + date1.Month - date2.Month

Example 2: c# compare months

if(DateTime.ParseExact(DDMonths.SelectedItem.Text, "MMMM", CultureInfo.CurrentCulture).Month > DateTime.Now.Month) {
  ...
}