“Global variable” in Visual C#

Question

I have made the Graph class, and i want to simulate a distribution network. The Graph works 100%. But, i want to use that same struct/class in all my application! For example: I

Answer 1

Make your Graph instance a public static member of a static class and for all practical purposes you have your global.

Answer 2

C# has static fields for this. You can use SIngleton pattern in conjunction with static field. But don't forget that misusage of application-wide objects can bring down your design.

Answer 3

Give the forms a reference to the Graph in their constructor.

 Graph g = new Graph();
 Form1 f1 = new Form1(g);
 Form2 f2 = new Form2(g);

Then both forms are working with the same graph.

Answer 4

Take a look at the Singleton pattern for one possible approach to having a common object:

Singleton Pattern

Answer 5

Make a static class. The variables that need global access, put them inside that class.

Even better idea would be to use Singleton objects to represent globally accessible objects.