Validate a user with FormsAuthentication.Authenticate : FormsAuthentication « Authentication Authorization « ASP.NET Tutorial






  1. ASP.NET Tutorial
  2. Authentication Authorization
  3. FormsAuthentication
<%@ Page Language="VB" %>

<script runat="server">
   sub Login(Sender as Object, e as EventArgs)
      if FormsAuthentication.Authenticate(tbUserName.Text,tbPassword.Text) then
         FormsAuthentication.SetAuthCookie(tbUsername.Text, false)
         
         lblMessage.Text = "<font color=red>Success!</font>"
      else
         lblMessage.Text = "<font color=red>Sorry, " & _
            "invalid username or password!</font>"
      end if
   end sub
</script>

<html><body>
   Please enter your username and password.
   
   <form runat="server">
      <asp:Label id="lblMessage" runat="server" />
      
      Username:
    <asp:Textbox id="tbUserName" runat="server" /><br>
    Password:
    <asp:Textbox id="tbPassword" TextMode="password" 
       runat="server" />
    <asp:Button id="Submit" runat="server" 
       OnClick="Login" 
       Text="Submit" />
   </form>
</body></html>








21.10.FormsAuthentication
21.10.1.Configuring Forms Authentication
21.10.2.Use the web configuration file to change the name of the authentication cookie.
21.10.3.Using Cookieless Forms Authentication
21.10.4.Using Sliding Expiration with Forms Authentication
21.10.5.Set user name with FormsAuthentication.SetAuthCookie
21.10.6.Validate a user with FormsAuthentication.Authenticate
21.10.7.Using Forms Authentication Across Domains: Query String Authenticate
21.10.8.Web configuration file contains a list of usernames and passwords.
21.10.9.Assigning a name to the user and accessing next pages
21.10.10.Principal Login
21.10.11.Logout