How do you access a global variable in C# like In VB.net?

Question

If we declare a global variable in module in vb.net, we can use that variable in anywhere in project.

How can we achieve same thing in C#.

Previously when we tried to convert a vb.net project to C#, we succeeded in removing the syntax error but we can't access global variable in a form.

I need some solution or guidance. Where I am making a mistake?

I think you are looking for something similar http://stackoverflow.com/questions/4751013/c-global-module — zk., Sep 21 '11 at 05:46

score 3 · Accepted Answer · answered Sep 21 '11 at 05:45

3

In C# you can declare a static field.

public class Foo
{
   public static string value;
}

and use value field using ClassName.Member syntax anywhere.

Foo.value="Hello!";

answered Sep 21 '11 at 05:45

KV Prajapati

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Need to mark class `static` as well to use the example provided. – Dmitrii Erokhin Sep 21 '11 at 05:48
@Dmitry: no need to set the class `static` since one of his members is `static` field – Rami Alshareef Sep 21 '11 at 05:51
2

@DmitryErokhin: You actually don't need to do that - but making the class static matches more closely what the VB.NET compiler does when you define a Module. – Reed Copsey Sep 21 '11 at 05:51

score 3 · Answer 2 · answered Sep 21 '11 at 05:46

3

You can approximate a VB.Net Module functionality by putting the variable inside of a static class:

public static class Foo
{
     public static string Bar { get; set; }
}

This will let you access it anywhere in the namespace via Foo.Bar.

answered Sep 21 '11 at 05:46

Reed Copsey

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Conrad Frix · Answer 3 · 2011-09-21T14:14:16.933

2

You may want to also consider using the Singleton Pattern. This keeps your variable initialization logic in a sensible place. Its also pretty easy to protect or keep track of changes to your variable.

edited Sep 21 '11 at 14:14

answered Sep 21 '11 at 05:55

Conrad Frix

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score 1 · Answer 4 · edited May 23 '17 at 10:34

1

You have to declare them as static

C# Global Variable

global variables in c#.net - Stack Oveflow

edited May 23 '17 at 10:34

Community

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answered Sep 21 '11 at 05:47

Rami Alshareef

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No just your variables that you need to access globally – Rami Alshareef Sep 22 '11 at 06:03
but i want to access controls used in that forms globally... pls suggest – Sai Sherlekar Sep 22 '11 at 07:04

score 0 · Answer 5 · answered Sep 21 '11 at 05:45

0

Should work the same. Make sure if is marked static. Or try using a static property in your module instead of a variable.

answered Sep 21 '11 at 05:45

Bernesto

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score 0 · Answer 6 · answered Sep 21 '11 at 05:45

0

You cannot declare public variable if it's value type such as int,string and etc.

But you can wrap it in struct for example

answered Sep 21 '11 at 05:45

Gregory Nozik

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How do you access a global variable in C# like In VB.net?

6 Answers6