Global.asax

The .asax file is an important component in an ASP.NET application. It serves as the entry point for handling application-level events and configuring application-wide settings.

The Global.asax file is automatically when you create a new ASP.NET application. It resides in the root directory of the application and has a file extension of .asax.

One of the main purposes of the Global.asax file is to handle application-level events, such as application start, session start, session end, and application end. These events you to perform certain actions when the event occurs. For example, you can use the Application_Start event to initialize global or set up application-wide settings.

Here is an example of how the Global.asax file can be used to handle the Application_Start event:


void Application_Start(object sender, EventArgs e)
{
    // Code to be executed when the application starts
    // For example, initializing global variables
    // or setting up application-wide settings
}

Another important aspect of the Global.asax file is the ability to define custom application-wide routes. Routes determine how URLs are mapped to specific or in your application. By defining routes in the Global.asax file, you can create user-friendly URLs and the routing behavior of your application.

Here is an example of how the Global.asax file can be used to define custom routes:


void Application_Start(object sender, EventArgs e)
{
    // Code to be executed when the application starts
    // For example, initializing global variables
    // or setting up application-wide settings

    // Define custom routes
    RouteTable.Routes.MapPageRoute("MyRoute", "my-page", "~/MyPage.aspx");
}

In this example, a custom route “MyRoute” is defined, which maps the URL “/my-page” to the page “~/MyPage.aspx”. This allows users to access the page using a more user-friendly URL instead of the default page URL.

Overall, the Global.asax file plays a crucial role in an ASP.NET application by handling application-level events and configuring application-wide settings. It provides a centralized location for managing application behavior and .

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