Question

I have noticed there are other threads on global variables in c#. Such as integers, strings etc. e.g.

public static int;

But I need to use a “var” which the other thread don’t mention and

public static var;

doesn’t seem to work.

So what I’m asking is it possible to have a “var” as a global variable in c#?

Answer 1

C# specification (section 26.1) reads:

[`var is] an implicitly typed local variable declaration …

It goes further:

A local variable declarator in an implicitly typed local variable
declaration is subject to the following restrictions:

• The declarator must include an initializer.
• The initializer must be an expression.
• The initializer expression must have a compile-time type which cannot
  be the null type.
• The local variable declaration cannot include
  multiple declarators.
• The initializer cannot refer to the declared variable itself

So no, you cannot do this. Moreover I would recommend steering away from even thinking about global variables.

Global variables are not supported by the language. You may find alternatives in public static fields, but this will leak object state and break encapsulation.