Question

I have created a function in a class. and i want to call it throughout my project. but i don’t want to create the object of that class in every page. is there any global declaration for that class so that we can call in every page ? Inheritance is not possible in code behind file of aspx page .cs file.

Answer 1

You need to create a Static Method in your class so that you can call the function without creating an object of that class as shown in following snippet:

public class myclass
{
 public static returntype methodname()
 {
    //your code
 }
}

to call the function just use

//ClassName.MethodName();
myclass.methodname();

you can have look at MSDN: Static Members

Suggestion

One more resolution to your problem is to make use of SINGLETON DESIGN PATTERN

Intent

1. Ensure that only one instance of a class is created.
2. Provide a global point of access to the object.