MembershipUser.LastPasswordChangedDate Property (System.Web.Security)

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.NET Framework Class Library

MembershipUser.LastPasswordChangedDate Property

Note: This property is new in the .NET Framework version 2.0.

Gets the date and time when the membership user's password was last updated.

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

Syntax

Visual Basic (Declaration)

Public Overridable ReadOnly Property LastPasswordChangedDate As DateTime

Visual Basic (Usage)

Dim instance As MembershipUser
Dim value As DateTime

value = instance.LastPasswordChangedDate

public virtual DateTime LastPasswordChangedDate { get; }

C++

public:
virtual property DateTime LastPasswordChangedDate {
	DateTime get ();
}

/** @property */
public DateTime get_LastPasswordChangedDate ()

JScript

public function get LastPasswordChangedDate () : DateTime

Property Value

The date and time when the membership user's password was last updated.

Remarks

The SqlMembershipProvider sets the CreationDate, LastLoginDate, LastActivityDate, and LastPasswordChangedDate date to the same date and time when a membership user is created by the CreateUser method.

Example

The following code example shows a login page that indicates a password has expired after a specified number of days. If the LastPasswordChangedDate is earlier than the current date and time minus the number of days specified for the expiration of a password, then the user is directed to change his or her password.

Visual Basic

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

<script runat="server">

Dim passwordExpiresDays As Double = 90

Public Sub Login_OnClick(sender As Object, args As EventArgs)

   Dim u As MembershipUser = Membership.GetUser(UsernameTextbox.Text)

   If u Is Nothing Then
     Msg.Text = "Invalid user name. Please check your user name and try again."
     Return
   End If

   If Membership.ValidateUser(UsernameTextbox.Text, PasswordTextbox.Text) Then
      If u.LastPasswordChangedDate.AddDays(passwordExpiresDays) < DateTime.Now Then
        Msg.Text = "Your password has expired. Please change your password to a new value."
        UsernameLabel.Text = UsernameTextbox.Text
        ChangePasswordPanel.Visible = True
        LoginPanel.Visible = False
      Else
        FormsAuthentication.RedirectFromLoginPage(UsernameTextbox.Text, NotPublicCheckBox.Checked)
      End If
   Else
     Msg.Text = "Invalid password. Please check your password and try again."
   End If
End Sub

Public Sub ChangePassword_OnClick(sender As Object, args As EventArgs)

  ' Update the password.

  Dim u As MembershipUser = Membership.GetUser(UsernameLabel.Text)

  If u.ChangePassword(OldPasswordTextbox.Text, NewPasswordTextbox.Text) Then
    Msg.Text = "Password changed."
    ChangePasswordPanel.Visible = False
    LoginPanel.Visible = True
  Else
    Msg.Text = "Password change failed. Please re-enter your values and try again."
  End If
End Sub

</script>

<html>
<head>
  <title>Login</title>
</head>
<body>

<form runat="server">
  <h3>Login</h3>

  <asp:Label id="Msg" ForeColor="maroon" runat="server" /><BR>

  <asp:Panel id="LoginPanel" runat="Server">

    Username: <asp:Textbox id="UsernameTextbox" runat="server" /><BR>
    Password: <asp:Textbox id="PasswordTextbox" runat="server" TextMode="Password" /><BR>
 
    <asp:Button id="LoginButton" Text="Login" OnClick="Login_OnClick" runat="server" />
    <asp:CheckBox id="NotPublicCheckBox" runat="server" /> Check here if this is <u>not</u> a public computer.

  </asp:Panel>

  <asp:Panel id="ChangePasswordPanel" runat="Server" Visible="False">
    <table CellPadding="3" border="0">
      <tr>
        <td>Username:</td>
        <td><B><asp:Label id="UsernameLabel" runat="server" /></B></td>
        <td></td>
      </tr>
      <tr>
        <td>Old Password:</td>
        <td><asp:Textbox id="OldPasswordTextbox" runat="server" TextMode="Password" /></td>
        <td><asp:RequiredFieldValidator id="OldPasswordRequiredValidator" runat="server"
                                        ControlToValidate="OldPasswordTextbox" ForeColor="red"
                                        Display="Static" ErrorMessage="Required" /></td>
      </tr>
      <tr>
        <td>Password:</td>
        <td><asp:Textbox id="NewPasswordTextbox" runat="server" TextMode="Password" /></td>
        <td><asp:RequiredFieldValidator id="PasswordRequiredValidator" runat="server"
                                        ControlToValidate="NewPasswordTextbox" ForeColor="red"
                                        Display="Static" ErrorMessage="Required" /></td>
      </tr>
      <tr>
        <td>Confirm Password:</td>
        <td><asp:Textbox id="PasswordConfirmTextbox" runat="server" TextMode="Password" /></td>
        <td><asp:RequiredFieldValidator id="PasswordConfirmRequiredValidator" runat="server"
                                        ControlToValidate="PasswordConfirmTextbox" ForeColor="red"
                                        Display="Static" ErrorMessage="Required" />
            <asp:CompareValidator id="PasswordConfirmCompareValidator" runat="server"
                                        ControlToValidate="PasswordConfirmTextbox" ForeColor="red"
                                        Display="Static" ControlToCompare="PasswordTextBox"
                                        ErrorMessage="Confirm password must match password." />
        </td>
      </tr>
      <tr>
        <td></td>
        <td><asp:Button id="ChangePasswordButton" Text="Change Password" 
                        OnClick="ChangePassword_OnClick" runat="server" /></td>
      </tr>
    </table>
  </asp:Panel>

</form>
<P>

</body>
</html>

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

<script runat="server">

double passwordExpiresDays = 90;

public void Login_OnClick(object sender, EventArgs args)
{
   MembershipUser u = Membership.GetUser(UsernameTextbox.Text);

   if (u == null)
   {
     Msg.Text = "Invalid user name. Please check your user name and try again.";
     return;
   }

   if (Membership.ValidateUser(UsernameTextbox.Text, PasswordTextbox.Text))
   {
      if (u.LastPasswordChangedDate.AddDays(passwordExpiresDays) < DateTime.Now)
      {
        Msg.Text = "Your password has expired. Please change your password to a new value.";
        UsernameLabel.Text = UsernameTextbox.Text;
        ChangePasswordPanel.Visible = true;
        LoginPanel.Visible = false;
      }
      else
      {
        FormsAuthentication.RedirectFromLoginPage(UsernameTextbox.Text, NotPublicCheckBox.Checked);
      }
   }
   else
   {
     Msg.Text = "Invalid password. Please check your password and try again.";
   }
}

public void ChangePassword_OnClick(object sender, EventArgs args)
{
  // Update the password.

  MembershipUser u = Membership.GetUser(UsernameLabel.Text);

  if (u.ChangePassword(OldPasswordTextbox.Text, NewPasswordTextbox.Text))
  {
    Msg.Text = "Password changed.";
    ChangePasswordPanel.Visible = false;
    LoginPanel.Visible = true;
  }
  else
  {
    Msg.Text = "Password change failed. Please re-enter your values and try again.";
  }
}

</script>

<html>
<head>
  <title>Login</title>
</head>
<body>

<form runat="server">
  <h3>Login</h3>

  <asp:Label id="Msg" ForeColor="maroon" runat="server" /><BR>

  <asp:Panel id="LoginPanel" runat="Server">

    Username: <asp:Textbox id="UsernameTextbox" runat="server" /><BR>
    Password: <asp:Textbox id="PasswordTextbox" runat="server" TextMode="Password" /><BR>
 
    <asp:Button id="LoginButton" Text="Login" OnClick="Login_OnClick" runat="server" />
    <asp:CheckBox id="NotPublicCheckBox" runat="server" /> Check here if this is <u>not</u> a public computer.

  </asp:Panel>

  <asp:Panel id="ChangePasswordPanel" runat="Server" Visible="False">
    <table CellPadding="3" border="0">
      <tr>
        <td>Username:</td>
        <td><B><asp:Label id="UsernameLabel" runat="server" /></B></td>
        <td></td>
      </tr>
      <tr>
        <td>Old Password:</td>
        <td><asp:Textbox id="OldPasswordTextbox" runat="server" TextMode="Password" /></td>
        <td><asp:RequiredFieldValidator id="OldPasswordRequiredValidator" runat="server"
                                        ControlToValidate="OldPasswordTextbox" ForeColor="red"
                                        Display="Static" ErrorMessage="Required" /></td>
      </tr>
      <tr>
        <td>Password:</td>
        <td><asp:Textbox id="NewPasswordTextbox" runat="server" TextMode="Password" /></td>
        <td><asp:RequiredFieldValidator id="PasswordRequiredValidator" runat="server"
                                        ControlToValidate="NewPasswordTextbox" ForeColor="red"
                                        Display="Static" ErrorMessage="Required" /></td>
      </tr>
      <tr>
        <td>Confirm Password:</td>
        <td><asp:Textbox id="PasswordConfirmTextbox" runat="server" TextMode="Password" /></td>
        <td><asp:RequiredFieldValidator id="PasswordConfirmRequiredValidator" runat="server"
                                        ControlToValidate="PasswordConfirmTextbox" ForeColor="red"
                                        Display="Static" ErrorMessage="Required" />
            <asp:CompareValidator id="PasswordConfirmCompareValidator" runat="server"
                                        ControlToValidate="PasswordConfirmTextbox" ForeColor="red"
                                        Display="Static" ControlToCompare="PasswordTextBox"
                                        ErrorMessage="Confirm password must match password." />
        </td>
      </tr>
      <tr>
        <td></td>
        <td><asp:Button id="ChangePasswordButton" Text="Change Password" 
                        OnClick="ChangePassword_OnClick" runat="server" /></td>
      </tr>
    </table>
  </asp:Panel>

</form>
<P>

</body>
</html>

Platforms

Windows 98, Windows 2000 SP4, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

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

Version Information

.NET Framework

Supported in: 2.0

Reference

MembershipUser Class
MembershipUser Members
System.Web.Security Namespace

Other Resources

Introduction to Membership