Vb net handles validating

When visiting from home, however, that same user might want the authentication ticket to be remembered across browser restarts so that they do not have to re-log in each time they visit the site.

This decision is often made by the user in the form of a Remember me checkbox on the login page.

Figure 01: The Forms Authentication Workflow(Click to view full-size image) After logging in, the forms authentication ticket must be sent back to the web server on each request so that the user remains logged in as they browse the site.

This is typically accomplished by placing the authentication ticket in the user's cookies collection.

If the user making the request is not authorized to access the requested resource, the authorization module terminates the request and returns an HTTP 401 Unauthorized status.

In Windows authentication scenarios, the HTTP 401 status is returned to the browser.

The web application we start constructing in this tutorial will continue to be built upon in subsequent tutorials, as we move from simple forms authentication to membership and roles.

Please see this video for more information on this topic: Using Basic Forms Authentication in ASP. In the preceding tutorial we discussed the various authentication, authorization, and user account options provided by ASP. In this tutorial we will turn from mere discussion to implementation; in particular, we will look at implementing forms authentication.

Next, we will configure the site to use forms authentication, create a simple login page, and see how to determine, in code, whether a user is authenticated and, if so, the username they logged in with. NET Web service, the request raises a number of events during its lifecycle.Note The demo web application used in each tutorial is available as a download. NET 3.5, its Web.config file includes additional, 3.5-specific configuration elements. NET 3.5 on your computer then the downloadable web application will not work without first removing the 3.5-specific markup from Web.config.This downloadable application was created with Visual Web Developer 2008 targeted for the . One aspect of cookies is their expiration, which is the date and time at which the browser discards the cookie. _Validating(Sender As Object, args As Cancel Event Args) _ @@Handles ???? In this tutorial we will turn from mere discussion to implementation; in particular, we will look at implementing forms authentication.

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