Global Variable in Page Header Section

you can make a global variable by creating a static class in a separate class file in your application.First, create a class called global in your application with the code given below. The class also has a static variable. 

class Global      {         

 public static string UserID;     

   public static string Status;       

   public static string Adim;    

 }  

To declare a global variable in the page header section of a programming language, you need to follow the specific syntax of that language. Here's an example using JavaScript:

In this example, the var keyword is used to declare a global variable named globalVariable. You can assign any value to the variable as per your requirement.

Make sure to place this code within the page header section, usually inside the  tags or on top of the document before any other code that uses the global variable.

Note that this example is specific to JavaScript. Different programming languages may have different syntax for declaring global variables.