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FormsAuthentication.RedirectToLoginPage Method

Redirects the browser to the login URL.

This member is overloaded. For complete information about this member, including syntax, usage, and examples, click a name in the overload list.

  NameDescription
Public method Static member RedirectToLoginPage() Redirects the browser to the login URL.
Public method Static member RedirectToLoginPage(String) Redirects the browser to the login URL with the specified query string.
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The RedirectToLoginPage method redirects the browser to the LoginUrl.

The RedirectToLoginPage method does not clear the forms-authentication cookie. You can use the RedirectToLoginPage method in conjunction with the SignOut method to log one user out and allow a different user to log in.

Unlike the HttpResponse.Redirect method, this method does not end the request by calling HttpResponse.End. This means that code that follows the RedirectToLoginPage method call will run.

The following code example clears the forms-authentication cookie using the SignOut method and redirects the user to the login page using the RedirectToLoginPage method.


<%@ Page Language="C#" %>
<%@ Import Namespace="System.Web.Security" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">

public void LoginLink_OnClick(object sender, EventArgs args)
{
  FormsAuthentication.SignOut();
  FormsAuthentication.RedirectToLoginPage();
}

</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>ASP.NET Example</title>
</head>
<body>

<form id="form1" runat="server">
Welcome <b><%=User.Identity.Name%></b>. Not <b><%=User.Identity.Name%></b>? 
Click <asp:LinkButton id="LoginLink" Text="here" 
                      OnClick="LoginLink_OnClick" runat="server" />
to sign in.

<!-- Page Contents -->

</form>



</body>
</html>


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