declaring a variable globally so that can be reused anywhere in c# mvc

Question

I went through many links but couldn't find my answer.Links such as Global variables for setting configurations ASP.NET MVC , ASP.NET MVC C# global variable, ASP.NET MVC Global Variables and many more all of them suggest some complex methods like using Application_Start or using session variables, singleton pattern. But I don't want to use these, I just want declare a variable in a certain file and access it anywhere I need.

var dataContext = new PetaPoco.Database("MessageEntity");

This line is required anywhere I need to access the database. So I want to declare this dataContext as global variable in a certain different file and access it on my several other controllers. How would I accomplish this. Please help!!

I think this answer could help u Salut! stackoverflow.com/questions/5118610/… — Enrique Quero
– Enrique Quero, Commented Dec 8, 2014 at 10:34
The link in the previous comment is your answer. But beware, your creating a God class, this is the start of a maintenance nightmare. Change your design while you still can! Use dependency injection instead. — Ric .Net
– Ric .Net, Commented Dec 8, 2014 at 10:40
Ok If Its such a bad programming practice, I may not use it. But want to know how it is done. I wrote a separate class public static class DatabaseEntity { public DatabaseEntity() { var dataContext = new PetaPoco.Database("MessageEntity"); } } Now how will I use this class elsewhere — khushbu
– khushbu, Commented Dec 8, 2014 at 10:57
Why is this needing to be done? What are you trying to achieve by having a variable globally set?? Also, you should try the configuration file, web.config — Callum Linington
– Callum Linington, Commented Dec 8, 2014 at 11:26
I recommend learning about dependency injection and IoC-Containers. — CodesInChaos
– CodesInChaos, Commented Dec 8, 2014 at 11:34

aleha_84 · Accepted Answer · 2014-12-08 11:23:56Z

to create global variable:

public static class Global { public volatile static Object GlobalVariable; }

It can be accessed everywhere from apllication thru Global.GlobalVariable.

but it is bad solution for data access context.

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