using preprocessor directive for cross framework compatibility

[Praveen]

Hello all,

I have some common classes that I routinely use with all the dotnet projects
that I work with. I have these classes in a separate file so that it becomes
easy for me to include them into projects.

Some of these projects are done in visual studio 2003 and some are in visual
studio 2005. lately I have started using some of the classes (FTPWebrequest)
which are specific to the dotnet framework 2.0 (VS 2005). Now this file
cannot be included into the vs2003 projects as they would give compile
errors.

I did not want to to maintain two different files for these 2 environments.

I know that we can use preprocessor directives (#if ) for this but I did not
know how to identify the IDE version (VS 2003 or VS 2005) to use in the If
directive.

Can you help me with this.

thanks in advance,
Praveen

 

[Michael Nemtsev]

Hello Praveen,

Try to use Environment.Version method

P> Hello all,
P>
P> I have some common classes that I routinely use with all the dotnet
P> projects that I work with. I have these classes in a separate file so
P> that it becomes easy for me to include them into projects.
P>
P> Some of these projects are done in visual studio 2003 and some are in
P> visual studio 2005. lately I have started using some of the classes
P> (FTPWebrequest) which are specific to the dotnet framework 2.0 (VS
P> 2005). Now this file cannot be included into the vs2003 projects as
P> they would give compile errors.
P>
P> I did not want to to maintain two different files for these 2
P> environments.
P>
P> I know that we can use preprocessor directives (#if ) for this but I
P> did not know how to identify the IDE version (VS 2003 or VS 2005) to
P> use in the If directive.
P>
P> Can you help me with this.
P>
P> thanks in advance,
P> Praveen
---
WBR,
Michael Nemtsev [C# MVP] :: blog: http://spaces.live.com/laflour

"At times one remains faithful to a cause only because its opponents do not
cease to be insipid." (c) Friedrich Nietzsche

 

[Mattias Sjögren]

I know that we can use preprocessor directives (#if ) for this but I did not

know how to identify the IDE version (VS 2003 or VS 2005) to use in the If
directive.

There's no built in symbol defined to tell you the VS or framework
version, so you have to define one yourself in your project.


Mattias

 

[Walter Wang [MSFT]]

As Mattias poinsted out, there's no built-in Conditional Compilation
Constants defined to distinguish which CLR version is used. I'm afraid
you'll have to define your own constant in Project Properties/Build
settings.

I understand that it would be better if these can be offered by the
compiler automatically; please feel free to submit your feedback at
http://connect.microsoft.com/Main/content/content.aspx?ContentID=2220.
Thanks for your understanding.

Sincerely,
Walter Wang ([email protected], remove 'online.')
Microsoft Online Community Support

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