Question

I have the following where I need to get only the Date (not datetime) from ReqDate and RepDeclined which are both nullable datetime fields.

var info = from pr in db.Prog        
join tf in db.In_Lens        
on pr.PID equals tf.PID        
select new        
 { ReqDate = String.Format("{0:MM/dd/yyyy}",tf.ReqDate),          
   ReqDeclinedDate = tf.ReqDeclined.ToString("MM/dd/yyyy")       
 }).ToList() 

It is not working as ReqDate and RepDeclined are both nullable datetime fields. I also tried String.Format but no luck.

Answer 1

Do

var info = from pr in db.Prog        
join tf in db.In_Lens        
on pr.PID equals tf.PID        
select new        
{
    ReqDate = (tf.ReqDate == null ? "" : tf.ReqDate.ToString("MM/dd/yyyy")),
    ReqDeclinedDate = (tf.ReqDeclined == null ? "" : tf.ReqDeclined.ToString("MM/dd/yyyy"))
}).ToList() 

to avoid the NullReferenceException caused by the .ToString call on a null object.

or

Use String.Format in both cases:

var info = from pr in db.Prog        
join tf in db.In_Lens        
on pr.PID equals tf.PID        
select new        
{
    ReqDate = String.Format("{0:MM/dd/yyyy}",tf.ReqDate),
    ReqDeclinedDate = String.Format("{0:MM/dd/yyyy}",tf.ReqDeclined)
}).ToList()