System.Web.UI.WebControls Namespace

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.NET Framework version 2.0

Provides user interface ( UI ) elements that enable a user to recover or reset a lost password and receive it in e-mail.

PasswordRecovery Class Members

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Constructors Visibility Constructor Parameters public PasswordRecovery ( )   Fields Visibility Name Type public static SubmitButtonCommandName String   Properties Visibility Name Value Type Accessibility public Answer String [ Get ] public AnswerLabelText String [ Get , Set ] public AnswerRequiredErrorMessage String [ Get , Set ] public BorderPadding Int32 [ Get , Set ] public FailureTextStyle TableItemStyle [ Get ] public GeneralFailureText String [ Get , Set ] public HelpPageIconUrl String [ Get , Set ] public HelpPageText String [ Get , Set ] public HelpPageUrl String [ Get , Set ] public HyperLinkStyle TableItemStyle [ Get ] public InstructionTextStyle TableItemStyle [ Get ] public LabelStyle TableItemStyle [ Get ] public MailDefinition MailDefinition [ Get ] public MembershipProvider String [ Get , Set ] public Question String [ Get ] public QuestionFailureText String [ Get , Set ] public QuestionInstructionText String [ Get , Set ] public QuestionLabelText String [ Get , Set ] public QuestionTemplate ITemplate [ Get , Set ] public QuestionTemplateContainer Control [ Get ] public QuestionTitleText String [ Get , Set ] public SubmitButtonImageUrl String [ Get , Set ] public SubmitButtonStyle Style [ Get ] public SubmitButtonText String [ Get , Set ] public SubmitButtonType ButtonType [ Get , Set ] public SuccessPageUrl String [ Get , Set ] public SuccessTemplate ITemplate [ Get , Set ] public SuccessTemplateContainer Control [ Get ] public SuccessText String [ Get , Set ] public SuccessTextStyle TableItemStyle [ Get ] public TextBoxStyle Style [ Get ] public TextLayout LoginTextLayout [ Get , Set ] public TitleTextStyle TableItemStyle [ Get ] public UserName String [ Get , Set ] public UserNameFailureText String [ Get , Set ] public UserNameInstructionText String [ Get , Set ] public UserNameLabelText String [ Get , Set ] public UserNameRequiredErrorMessage String [ Get , Set ] public UserNameTemplate ITemplate [ Get , Set ] public UserNameTemplateContainer Control [ Get ] public UserNameTitleText String [ Get , Set ] public ValidatorTextStyle Style [ Get ]   Methods Visibility Name Parameters Return Type protected LoadViewState ( Object savedState ) Void protected OnAnswerLookupError ( EventArgs e ) Void protected OnBubbleEvent ( Object source , EventArgs e ) Boolean protected OnSendingMail ( MailMessageEventArgs e ) Void protected OnSendMailError ( SendMailErrorEventArgs e ) Void protected OnUserLookupError ( EventArgs e ) Void protected OnVerifyingAnswer ( LoginCancelEventArgs e ) Void protected OnVerifyingUser ( LoginCancelEventArgs e ) Void protected SaveViewState ( ) Object protected SetDesignModeState ( IDictionary data ) Void protected TrackViewState ( ) Void   Events Multicast Name Type multicast AnswerLookupError EventHandler multicast SendingMail MailMessageEventHandler multicast SendMailError SendMailErrorEventHandler multicast UserLookupError EventHandler multicast VerifyingAnswer LoginCancelEventHandler multicast VerifyingUser LoginCancelEventHandler

The PasswordRecovery control assists users who have forgotten their passwords. It enables a user to request an e-mail message containing either a new password or the password already associated with his or her user name.

NOTE: The PasswordRecovery Web control uses Internet e-mail services to send recovered or new passwords to users. There are inherent security risks with sending passwords in e-mail. You should determine whether these security risks are acceptable to your site.

Users can recover passwords only when the membership provider defined in the MembershipProvider property supports clear text or encrypted passwords. Because hashed passwords cannot be recovered, users at sites that use hashed passwords can only reset their passwords.

NOTE: Accepting user input is a potential security threat. Malicious users can send data that is intended to expose vulnerabilities or run programs that try generated passwords. To improve security when working with user input, you should use the validation features of your control and secure any data providers that are configured for your control. For more information, see Securing Login Controls, Basic Security Practices for Web Applications, and Securing Membership.

NOTE: The PasswordRecovery control can be used when a membership user has not been approved ( MembershipUser.IsApproved is set to false ), but it cannot be used when a membership user has been locked out ( MembershipUser.IsLockedOut is set to true ).

The e-mail message is sent using the MailDefinition class. To be able to send e-mail to users, you must configure a mail server in your application's Web.config file. You can change the content of the e-mail sent to users by setting a custom message in the MailDefinition property.

The PasswordRecovery control has three states, or views:

• UserName view -- Asks the user for his or her registered user name.
• Question view -- Requires the user to provide the answer to a stored question to reset the password.
• Success view -- Tells the user whether the password recovery or reset was successful.

The PasswordRecovery control displays the Question view only when the membership provider defined in the MembershipProvider property supports password question and answer.

The following table lists each style property of the PasswordRecovery control and indicates which view it affects.

Property	UserName view	Question view	Success view
SubmitButtonStyle	Yes	Yes	Yes
FailureTextStyle	Yes	Yes	No
HyperLinkStyle	Yes	Yes	No
InstructionTextStyle	Yes	Yes	No
LabelStyle	Yes	Yes	No
SuccessTextStyle	No	No	Yes
TextBoxStyle	Yes	Yes	No
TitleTextStyle	Yes	Yes	Yes

You can use an extensive set of style properties to customize the appearance of the PasswordRecovery control. Alternatively, you can apply custom templates to the three views if you need complete control over the appearance of the control. You can use the QuestionTemplate, SuccessTemplate and UserNameTemplate properties to create templates for these views. If you define a template for a view, the style properties of PasswordRecovery have no effect.

The following table lists the PasswordRecovery control style properties and explains which UI element each style property affects. For a list of which properties each style applies to, see the documentation for the individual style properties.

Style property	UI element affected
SubmitButtonStyle	Submit buttons on all views.
FailureTextStyle	Error text displayed to the user.
HyperLinkStyle	Links to other pages.
InstructionTextStyle	Instructional text on the page that tells users how to use the control.
LabelStyle	Labels for all input fields, such as text boxes.
TextBoxStyle	Text entry input fields.
TitleTextStyle	Title text for each view.
SuccessTextStyle	Text displayed to the user when the password recovery or reset attempt is successful.

The following table lists which template properties apply to each view in the PasswordRecovery control. For a list of the controls that you must set in each template, see the documentation for the individual template properties.

View	Template property
UserName	UserNameTemplate
Question	QuestionTemplate
Success	SuccessTemplate

When the PasswordRecovery control is not customized with templates, the AccessKey property of the PasswordRecovery control applies to the first text box in the control and the TabIndex property, which is applied to all text boxes of the control. If the PasswordRecovery control is customized with templates, then the AccessKey property and the TabIndex property are ignored. In this case, set the AccessKey property and the TabIndex property of each template child control directly.

PasswordRecovery control properties represented by text boxes, such as Answer and Question, are accessible during all phases of the page life cycle. The control will pick up any changes made by the end user by means of the TextChanged event triggered by the textboxes.

The PasswordRecovery control creates a validation group for all required field validators in the control so that other input controls on the page are not affected by validating the PasswordRecovery control. By default, the ID property of the PasswordRecovery control is used as the name of the validation group. For example, a PasswordRecovery control with the ID "PasswordRecovery1" will use a validation group name of "PasswordRecovery1". If you want the PasswordRecovery control to participate in another validation group, you must template the control.

For examples illustrating use of this control, see the individual member types of this class. For syntax information, see PasswordRecovery in ASP.NET Syntax for Web Controls.

ASP.NET Login Controls   PasswordRecovery Web Server Control

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