FormsAuthenticationTicket.Expired Eigenschap
Definitie
Belangrijk
Bepaalde informatie heeft betrekking op een voorlopige productversie die aanzienlijk kan worden gewijzigd voordat deze wordt uitgebracht. Microsoft biedt geen enkele expliciete of impliciete garanties met betrekking tot de informatie die hier wordt verstrekt.
Hiermee wordt een waarde opgehaald die aangeeft of het ticket voor formulierverificatie is verlopen.
public:
property bool Expired { bool get(); };public bool Expired { get; }member this.Expired : boolPublic ReadOnly Property Expired As BooleanWaarde van eigenschap
true als het ticket voor formulierverificatie is verlopen; anders, false.
Voorbeelden
In het volgende codevoorbeeld worden de eigenschapswaarden van de FormsAuthenticationTicket huidige aangemelde gebruiker weergegeven.
Note
Als er geen aangemelde gebruiker is, wordt de Identity eigenschap en null ontvangt u een compiler-uitzondering wanneer u de Identity eigenschap probeert te casten als een FormsIdentity object.
<%@ Page Language="C#" AutoEventWireup="true"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
private void Page_Load(Object Src, EventArgs e)
{
Welcome.InnerHtml = "Hello, " +
Server.HtmlEncode(User.Identity.Name);
FormsIdentity id = (FormsIdentity)User.Identity;
FormsAuthenticationTicket ticket = id.Ticket;
cookiePath.Text = ticket.CookiePath;
expireDate.Text = ticket.Expiration.ToString();
expired.Text = ticket.Expired.ToString();
isPersistent.Text = ticket.IsPersistent.ToString();
issueDate.Text = ticket.IssueDate.ToString();
name.Text = ticket.Name;
userData.Text = ticket.UserData;
version.Text = ticket.Version.ToString();
}
private void Signout_Click(Object sender, EventArgs e)
{
FormsAuthentication.SignOut();
Response.Write("Logged out - cookie deleted.");
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>Forms Authentication</title>
</head>
<body>
<h3>Forms Authentication Example</h3>
<span id="Welcome" runat="server"> </span>
<form id="form1" runat="server">
<input type="submit" value="Signout" runat="server" onserverclick="Signout_Click" />
<h3>Forms Authentication Ticket Properties</h3>
<table>
<tbody>
<tr>
<td>
CookiePath:
</td>
<td><asp:Label id="cookiePath" runat="server" />
</td>
</tr>
<tr>
<td>
Expiration:
</td>
<td><asp:Label id="expireDate" runat="server" />
</td>
</tr>
<tr>
<td>
Expired:
</td>
<td><asp:Label id="expired" runat="server" />
</td>
</tr>
<tr>
<td>
IsPersistent:
</td>
<td><asp:Label id="isPersistent" runat="server" />
</td>
</tr>
<tr>
<td>
IssueDate:
</td>
<td><asp:Label id="issueDate" runat="server" />
</td>
</tr>
<tr>
<td>
Name:
</td>
<td><asp:Label id="name" runat="server" />
</td>
</tr>
<tr>
<td>
UserData:
</td>
<td><asp:Label id="userData" runat="server" />
</td>
</tr>
<tr>
<td>
Version:
</td>
<td><asp:Label id="version" runat="server" />
</td>
</tr>
</tbody>
</table>
<p>
</p>
</form>
</body>
</html>
<%@ Page Language="VB" AutoEventWireup="true"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
Sub Page_Load(sender As Object, e As EventArgs)
Welcome.InnerHtml = "Hello, " + _
Server.HtmlEncode(User.Identity.Name)
Dim id As FormsIdentity = CType(User.Identity, FormsIdentity)
Dim ticket As FormsAuthenticationTicket = id.Ticket
cookiePath.Text = ticket.CookiePath
expireDate.Text = ticket.Expiration.ToString()
expired.Text = ticket.Expired.ToString()
isPersistent.Text = ticket.IsPersistent.ToString()
issueDate.Text = ticket.IssueDate.ToString()
name.Text = ticket.Name
userData.Text = ticket.UserData
version.Text = ticket.Version.ToString()
End Sub
Sub Signout_Click(sender As Object, e As EventArgs)
FormsAuthentication.SignOut()
Response.Write("Logged out - cookie deleted.")
End Sub
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>Forms Authentication</title>
</head>
<body>
<h3>Forms Authentication Example</h3>
<span id="Welcome" runat="server"> </span>
<form id="form1" runat="server">
<input type="submit" value="Signout" runat="server" onserverclick="Signout_Click" />
<h3>Forms Authentication Ticket Properties</h3>
<table>
<tbody>
<tr>
<td>
CookiePath:
</td>
<td><asp:Label id="cookiePath" runat="server" />
</td>
</tr>
<tr>
<td>
Expiration:
</td>
<td><asp:Label id="expireDate" runat="server" />
</td>
</tr>
<tr>
<td>
Expired:
</td>
<td><asp:Label id="expired" runat="server" />
</td>
</tr>
<tr>
<td>
IsPersistent:
</td>
<td><asp:Label id="isPersistent" runat="server" />
</td>
</tr>
<tr>
<td>
IssueDate:
</td>
<td><asp:Label id="issueDate" runat="server" />
</td>
</tr>
<tr>
<td>
Name:
</td>
<td><asp:Label id="name" runat="server" />
</td>
</tr>
<tr>
<td>
UserData:
</td>
<td><asp:Label id="userData" runat="server" />
</td>
</tr>
<tr>
<td>
Version:
</td>
<td><asp:Label id="version" runat="server" />
</td>
</tr>
</tbody>
</table>
<p>
</p>
</form>
</body>
</html>
Opmerkingen
De Expired eigenschap retourneert true als de Expiration datum en tijd kleiner is dan de huidige lokale datum en tijd; anders wordt de Expired eigenschap geretourneerd false.
