Assigning null/Nullable to DateTime in Ternary Operation

Question

I have a statement like

DateTime ? dt = (string1 == string2) ? null; (DateTime)(txtbox.Text);

which I cannot compile. Reason is : null cannot be assigned to DateTime.

So, I have to declare a Nullable<DateTime> nullable variable and replace null with nullable.

I do not want to use if-statement and I want to do this in one line.

Also, Can I use operator ?? here.

LukeH · Accepted Answer · 2013-02-12T12:42:41.900

63

DateTime? dt = (string1 == string2) ? (DateTime?)null
                                    : DateTime.Parse(txtbox.Text);

edited Feb 12 '13 at 12:42

answered Jun 02 '11 at 13:32

LukeH

score 0 · Answer 2 · answered Jun 02 '11 at 13:35

0

you can do it like that:

DateTime ? dt = (string1 == string2) ? new Nullable <DateTime>(): (DateTime)(txtbox.Text);

answered Jun 02 '11 at 13:35

fixagon

You can't directly cast a `string` to a `DateTime`. You'll need to use the `Parse` method instead. http://msdn.microsoft.com/en-us/library/1k1skd40.aspx – LukeH Jun 02 '11 at 13:39

2 Answers2