what does this statement double? pPlanMinimum; mean?

[c676228]

Hi all,

I am looking the code developed by our vendor and I came across a lot of
statement
with a question mark attached to a datatype.

What is that? I am just a beginner for C#.

Thanks,

 

[Peter Morris]

bool? is a shortcut for Nullable<bool>

 

[c676228]

Thank you both, Peter M. and Peter D. That helps.

I tried to search in Google, but it didn't get me anywhere.

I was so bothered by so many question marks in the code without knowing what
it means.

:=))

 

[Steven Cheng]

Hi Betty,

In case you want to get more about the Nullable type introduced from .NET
2.0, here are some other reference you can have a look:

#Nullable Types (C# Programming Guide)
http://msdn.microsoft.com/en-us/library/1t3y8s4s(VS.80).aspx

#Introduction to .Net Framework 2.0 Nullable Types
http://www.c-sharpcorner.com/UploadFile/mosessaur/nullabletypes0822200616413
5PM/nullabletypes.aspx

http://blogs.msdn.com/ericgu/archive/2004/05/27/143221.aspx

Sincerely,

Steven Cheng

Microsoft MSDN Online Support Lead


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From: =?Utf-8?B?YzY3NjIyOA==?= <[email protected]>
References: <[email protected]>

Subject: Re: what does this statement double? pPlanMinimum; mean?
Date: Fri, 12 Dec 2008 13:46:06 -0800

Thank you both, Peter M. and Peter D. That helps.

I tried to search in Google, but it didn't get me anywhere.

I was so bothered by so many question marks in the code without knowing what
it means.

:=))
--
Betty