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Class Library - Call Method when main app starts

Posted on 2010-08-19
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Last Modified: 2013-11-07
Hello, i have a solution with a windows forms app and some additional class library projects..

i want to know if there is anyway to make a method on one of the class library to execute the moment the main application starts without having to manually make the call in the main application..

(so that it wont matter where the class library is referenced it will always execute a method when the main app starts)

is it possible ?
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Question by:eguilherme
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6 Comments
 
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Expert Comment

by:AndyAinscow
ID: 33475251
>>is it possible ?

As you describe it I don't think so.  The method would need to be called explicitly somewhere, I haven't heard of an 'autostart' method specifier.
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by:AndyAinscow
ID: 33475516
Or - this might not be suitable: Just use the class via a singleton wrapper class, you can then call this method the very first time the 'real' class is to be used because it is going via this singleton class you have coded.
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Expert Comment

by:kooswillem
ID: 33476235
Why don't you just call each of the methods in the classes from your main class at application start?
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by:eguilherme
ID: 33477150
since some of those classes will be in different applications, i would like that they would get called automaticly, instead of having to manually call them at every application..

but i guess its not possible =/

i ll leave this open for now..maybe someone else has an answer
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robertlevy earned 2000 total points
ID: 33482899
this type of question often means that what you really need is some refactoring to use a Dependency Injection framework.  see http://visualstudiomagazine.com/Articles/2010/08/01/Inversion-of-Control-Patterns-for-the-Microsoft-NET-Framework.aspx for a good primer on DI
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Expert Comment

by:fromer
ID: 33483745
I don't think it's possible. Even static members are initialized just before access..
No way to execute code from class libraries at application start before accessing them..
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