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MembershipUser.IsOnline Property

Gets whether the user is currently online.

Namespace:  System.Web.Security
Assembly:  System.Web (in System.Web.dll)

public bool IsOnline { get; }

Property Value

Type: System.Boolean
true if the user is online; otherwise, false.

A user is considered online if the current date and time minus the UserIsOnlineTimeWindow property value is earlier than the LastActivityDate for the user.

The LastActivityDate for a user is updated to the current date and time by the CreateUser, UpdateUser and ValidateUser methods, and can be updated by some of the overloads of the GetUser method.

NoteNote:

The LastActivityDate property value for a user is updated by the classes in the System.Web.Profile and the System.Web.UI.WebControls.WebParts namespaces whenever user data is retrieved from or set at the data source. If your application uses the same data source to store user information, and your ProfileProvider and PersonalizationProvider are configured with the same applicationName as your MembershipProvider, then the LastActivityDate and IsOnline properties of the user will reflect this behavior.

The following code example displays all membership user names in a ListBox control and uses labels to show specific membership information for the selected user name, including the IsOnline property value for the membership user.

<%@ 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">

MembershipUserCollection users;

public void Page_Load()
{
  users = Membership.GetAllUsers();

  if (!IsPostBack)
  {
    // Bind users to ListBox.
    UsersListBox.DataSource = users;
    UsersListBox.DataBind();
  }


  // If a user is selected, show the properties for the selected user. 

  if (UsersListBox.SelectedItem != null)
  {
    MembershipUser u = users[UsersListBox.SelectedItem.Value];

    EmailLabel.Text = u.Email;
    IsOnlineLabel.Text = u.IsOnline.ToString();
    LastLoginDateLabel.Text = u.LastLoginDate.ToString();
    CreationDateLabel.Text = u.CreationDate.ToString();
    LastActivityDateLabel.Text = u.LastActivityDate.ToString();
  }
}

</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>Sample: View User Information</title>
</head>
<body>

<form runat="server" id="PageForm">

  <h3>View User Information</h3>

  <table border="0" cellspacing="4">
    <tr>
      <td valign="top">
        <asp:ListBox id="UsersListBox" DataTextField="Username" 
                     Rows="8" AutoPostBack="true" runat="server" />
      </td>
      <td valign="top">
        <table border="0" cellpadding="2" cellspacing="0">
          <tr>
           <td>E-mail:</td>
           <td><asp:Label runat="server" id="EmailLabel" /></td>
          </tr>
          <tr>
           <td>Is Online?:</td>
           <td><asp:Label runat="server" id="IsOnlineLabel" /></td>
          </tr>
          <tr>
           <td>LastLoginDate:</td>
           <td><asp:Label runat="server" id="LastLoginDateLabel" /></td>
          </tr>
          <tr>
           <td>CreationDate:</td>
           <td><asp:Label runat="server" id="CreationDateLabel" /></td>
          </tr>
          <tr>
           <td>LastActivityDate:</td>
           <td><asp:Label runat="server" id="LastActivityDateLabel" /></td>
          </tr>
        </table>
      </td>
    </tr>
  </table>

</form>

</body>
</html>

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0

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