DateTime? .ToString (format)

Question

Possible duplicate:
How to format a null DateTime using ToString ()?

appeared parsing DateTime? in a specific format. How:

 DateTime t1 = ...;
 string st1 = t1.ToString(format); //<-- works

 DateTime? t1 = ...;
 string st1 = t1.ToString(format); //Dont work.

No overload method for DateTime?

+5

Voonart May 15, '12 at 12:22

4 answers

Use Coalesce statement

DateTime? t1 = ...;

string st1 = t1 ?? t1.Value.ToString(format);

+3

Nikhil Agrawal May 15, '12 at 12:25

you can try it like this: nullabale type has hasValue property Nullable has value

if (t1.HasValue)
   t1.Value.ToString(yourFormat)

+1

Ravi gadag May 15, '12 at 12:24

First you need to check if DateTime is null or not.

 string strDate = (st1 != null ? st1.Value.ToString(format) : "n/a");

0

Abh May 15, '12 at 12:26

abatishchev · Accepted Answer · 2012-05-15T12:24:19+0000

if (t1.HasValue)
    string st1 = t1.Value.ToString(format);