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 this slightly I have a int that is in this example 4, if the int is 4 then I want to check if the date that is in the ‘String(Generalized-Time)’ format is in the last 4 days, the int maybe 7, 24, 30 etc.

How would I write this? I’m a novice and very grateful of the help.

Thanks

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;
}