what is the scope of public int x?

Question

Hi

I have two webforms. In the first, i put a public field x, but it's unknown in the second webform, despite the fact is public (i know that session and viewstate allow to pass from one webform to another but that's not the point here) and my question is: apparently, the scope of x is limited to its webform, despite the fact it's public. Why? And what's then the difference between internal and public here?

Thanks

public partial class WebForm1 : System.Web.UI.Page
{
public int x = 5;
protected void Page_Load(object sender, EventArgs e)
{

.......

}
}

Diptiranjan Sutar · Answer

Hello Valerie Meunier, The scope of the public int x variable you have defined in the WebForm1 class is limited to the instance of that class. When you create an instance of the WebForm1 class (i.e., when you load the web form in a web browser), the x variable will be initialized to 5 and will be accessible within the code of that instance of the WebForm1 class. However, if you create a different instance of a different class (e.g., WebForm2 ) and try to access the x variable, it will not be available because it belongs to the WebForm1 class. In other words, the scope of x is limited to the instance of the WebForm1 class that contains it. The public access modifier means that the x variable is accessible from any code that has access to an instance of the WebForm1 class. It doesn't mean that the variable is accessible from any code in your entire application. The internal access modifier, on the other hand, limits the accessibility of the variable to the same assembly (i.e., project) in which it is defined. In summary, the public access modifier allows you to access the x variable from any code that has access to an instance of the WebForm1 class, but its scope is still limited to the instance of the WebForm1 class that contains it. Thanks Dipti

Naimish Makwana · Answer

Hello Valerie, In ASP.NET, each web form is a separate class, and the scope of a public field is limited to the class in which it is defined.(It is beacuse Every time you page is postback or refresh (click also refreshes page) new instance of Page class is created. This means that all your fields become empty.) The difference between internal and public in this context is the accessibility of the field. A public field can be accessed from any class, while an internal field can only be accessed within the same assembly. Thanks Naimish Makwana

Valerie Meunier · Answer

Thanks

what is the scope of public int x?

Answers (3)