Declaring readonly public property in C#

[Jon Maz]

Hi,

Quick & easy one - why does this code give an error?
=====
CODE
=====

private int numberOfPages;

public readonly int NumberOfPages
{
get { return numberOfPages; }
}
======
ERROR
======

The modifier 'readonly' is not valid for this item (pointing to line
"public readonly int NumberOfPages").
TIA,

JON

[Martin Dechev]

Hi, Jon Maz,

Please, read the first sentence in the following article:

http://msdn.microsoft.com/library/en...readonlypg.asp

It answers your question.

Greetings
Martin
"Jon Maz" <jo****@surfeu.de.no.spam> wrote in message
news:uL**************@TK2MSFTNGP11.phx.gbl...

Hi,

Quick & easy one - why does this code give an error?
=====
CODE
=====

private int numberOfPages;

public readonly int NumberOfPages
{
get { return numberOfPages; }
}
======
ERROR
======

The modifier 'readonly' is not valid for this item (pointing to line "public readonly int NumberOfPages").
TIA,

JON

[Jon Maz]

Aha, different from VB.NET yet again....

Thanks Martin!

JON

[Jon Skeet [C# MVP]]

Jon Maz <jo****@surfeu.de.no.spam> wrote:

Quick & easy one - why does this code give an error?

Because that's not how you make a property read-only. You make it read-
only by only giving it a get {...} accessor, not a set {...} accessor.

--
Jon Skeet - <sk***@pobox.com>
http://www.pobox.com/~skeet
If replying to the group, please do not mail me too

[Jon Maz]

Hi Jon,

I thought of that, but it just looked kind of wrong (VB.Net habits, I
suppose), and the IDE gave me some kind of disapproving comment...

Still, I am now reassured.

Thanks!

JON