C# How would I check if a date that is currently a string is today?

Question

I have a date that is in a format called \'String(Generalized-Time)\', see MSDN linked here , I need to check if this date is today and if it is do X.

To complicate thi

Answer 1

Like this:

   DateTime dt;
   if (DateTime.TryParse(stringValue, out dt) && 
       dt.Date == DateTime.Today)
   {
       // do some stuff
   }

To check if it's anytime within the last four days,

   DateTime dt;
   if (DateTime.TryParse(stringValue, out dt) && 
       dt.Date > DateTime.Today.AddDays(-4f) &&
       dt < DateTime.Now)
   {
       // do some stuff
   }

or, as an extension method

public static bool WithinPreviousPeriod(this DateTime dt, int daysBack)
{
     return dt.Date > DateTime.Today.AddDays(-daysBack))
             && dt < DateTime.Now;
}