Question

I’m looking for a way to add some code to execute in all Page_Load events on all pages of my web application, without have to write it in all the pages.
The code must execute before the Page_Load methods on the pages.
Thanks for the attention.

Answer 1

You can create one Class let say BasePage.cs, and here you will have one virtual method Page_Load:

public class BasePage: System.Web.UI.Page
{
     protected virtual void Page_Load(object sender, EventArgs e)
     {
            //Some logic here that you want to execute for all pages
     }
}

Then, in every page where you want to execute this code on PageLoad, make that page to inherit from BasePage and override the PageLoad method, like this:

in file somePage.aspx.cs do this:

public partial class somePage : BasePage  
{
     protected  override void Page_Load(object sender, EventArgs e)
     {
         base.Page_Load(sender, e); //This line will execute page load from BasePage class
         //The rest of code you want to execute on this page load
     }
}