How to share app config files between multiple projects

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i have 4 projects

Project1(window project)

Project2(wpf project)

Project3(wpf project)

Project4(library Project)

all have own app config file,

i want to use single app config along multiple projects

how can i do thatt

i have tried to add app config file into solutions but there is no option to add application configuration file

or minimum have a single location for the connection string.

Posted 5-Oct-11 2:26am

vikki0286

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Roy Heil · Answer 1 · 2011-10-05T04:52:00

Solution 1

It looks to me that projects 2,3 & 4 are not standalone apps. I would not assign an app config file to a library project like that. I would write those apps such that they have constructors with everything they would need from the app config files. Then the calling project (Project1) would create the objects with those constructors. Thus, Project1 is the only project that needs an app config file.

Posted 5-Oct-11 4:52am

Roy Heil

Comments

Sergey Alexandrovich Kryukov 5-Oct-11 14:14pm

Good point, my 5.
However, if OP really needs it by some reason (I doubt it as you are right), there is a way, please see my solution.
--SA

Simon Bang Terkildsen 6-Oct-11 8:17am

+5

Espen Harlinn · Answer 2 · 2011-10-05T04:56:00

Solution 2

If you really want to do that, take a look at:
MSBuild Copy Task[^]

Best regards
Espen Harlinn

Posted 5-Oct-11 4:56am

Espen Harlinn

Comments

Sergey Alexandrovich Kryukov 5-Oct-11 14:13pm

Yes, my 5 (just for knowing it :-), but this is for custom build with custom tasks. There is a much simpler way; please see my solution.
--SA

Espen Harlinn 6-Oct-11 10:26am

Thank you, Sergey!

Simon Bang Terkildsen 6-Oct-11 8:18am

got my 5

Espen Harlinn 6-Oct-11 10:26am

Thank you, Simon!

Sergey Alexandrovich Kryukov · Answer 3 · 2011-10-05T08:12:00

Solution 3

If you really want to do this (which I'm not sure, see the answer by Roy), there is a way, in principle.

For one project, do: [Solution Explorer]: "Add" => "Add New Item" => "General" => "Application Configuration file".

For other projects, use the same file in the following way:
[Solution Explorer]: "Add" => "Add Existing Item" =>
[In file dialog box: select the same file => "Add" (small right down arrow) => "Add As Link" ]

The key here is "Add As Link". You will have only one physical file, linked to more than one project of the same solution.

—SA

Posted 5-Oct-11 8:12am

Sergey Alexandrovich Kryukov

Updated 5-Oct-11 8:16am

v4

Comments

Espen Harlinn 5-Oct-11 14:57pm

5'ed - as usual :)

Sergey Alexandrovich Kryukov 5-Oct-11 15:01pm

Thank you, Espen.
--SA

Simon Bang Terkildsen 6-Oct-11 8:19am

Absolutely the best way to do it, my 5.

Sergey Alexandrovich Kryukov 6-Oct-11 11:49am

Thank you, Simon, but there is much better way: to avoid overly strong coupling between projects.

In a good code design, just referencing is usually quite enough; in other cases (plug-ins) dynamic loading of assembly and invocation of implementation of an interface via Reflection works well. Anything beyond that is from devil -- usually.
--SA

Hoang Nhi Truong · Answer 4 · 2014-10-28T23:33:00

Solution 4

Thanks. but solution is not corrected

Posted 28-Oct-14 23:33pm

Hoang Nhi Truong