How to tell user an int typed field/property has not been set.

Thread view:

Enable EMail Alerts

Start New Thread

Thread rating:

zlfcn - 17 Nov 2006 15:40 GMT

Hi all,

In java, if a field is Integer type, we can assign it to null indicating
that this field has not been set yet. How can we achieve that in C#? In C#,
"int" is struct, we cannot set it to null. Thank you

zlf

Reply to this Message

Martin Z - 17 Nov 2006 15:46 GMT

If you're using version 2.0, google "Nullable Types". And int is not
exactly a struct, it's a value-type, where structs are also
value-types.

> Hi all,
>
[quoted text clipped - 3 lines]
>
> zlf

Reply to this Message

zlf - 17 Nov 2006 15:55 GMT

Got it. Thank you:)

Reply to this Message

Ciaran O''Donnell - 17 Nov 2006 16:03 GMT

If your not in .NET 2, I used to use int.minvalue as null equivilent.
It does need converting to put it in a db though.

Ciaran O'Donnell

> Hi all,
>
[quoted text clipped - 3 lines]
>
> zlf

Reply to this Message

Free Magazines

Get these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...