Membership.ValidatingPassword Event
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Occurs when a user is created, a password is changed, or a password is reset.
public:
static event System::Web::Security::MembershipValidatePasswordEventHandler ^ ValidatingPassword;public static event System.Web.Security.MembershipValidatePasswordEventHandler ValidatingPassword;member this.ValidatingPassword : System.Web.Security.MembershipValidatePasswordEventHandler Public Shared Custom Event ValidatingPassword As MembershipValidatePasswordEventHandler Event Type
Examples
The following code example shows a ValidatingPassword event that validates the format of the password for a user and cancels the action if the password does not match the required format.
public void Page_Load()
{
Membership.ValidatingPassword +=
new MembershipValidatePasswordEventHandler(OnValidatePassword);
}
public void OnValidatePassword(object sender,
ValidatePasswordEventArgs args)
{
System.Text.RegularExpressions.Regex r =
new System.Text.RegularExpressions.Regex(@"(?=.{6,})(?=(.*\d){1,})(?=(.*\W){1,})");
if (!r.IsMatch(args.Password))
{
args.FailureInformation =
new HttpException("Password must be at least 6 characters long and " +
"contain at least one number and one special character.");
args.Cancel = true;
}
}
Public Sub Page_Load()
AddHandler Membership.ValidatingPassword, _
New MembershipValidatePasswordEventHandler(AddressOf OnValidatePassword)
End Sub
Public Sub OnValidatePassword(sender As Object, _
args As ValidatePasswordEventArgs)
Dim r As System.Text.RegularExpressions.Regex = _
New System.Text.RegularExpressions.Regex("(?=.{6,})(?=(.*\d){1,})(?=(.*\W){1,})")
If Not r.IsMatch(args.Password) Then
args.FailureInformation = _
New HttpException("Password must be at least 6 characters long and " & _
"contain at least one number and one special character.")
args.Cancel = True
End If
End Sub
Remarks
The ValidatingPassword event is raised when the CreateUser method, the ChangePassword method, or the ResetPassword method of a membership provider is called.
You can use the ValidatingPassword event to validate password formats and values for membership users.
You can cancel the current CreateUser, ChangePassword, or ResetPassword action by setting the Cancel property of the supplied ValidatePasswordEventArgs to true during the ValidatingPassword event.
If you cancel the current action by setting the Cancel property to true, you can set the FailureInformation property of the supplied ValidatePasswordEventArgs to an exception that describes the reason for the password-validation failure. The calling method will throw the exception that the FailureInformation property is set to. If the FailureInformation property is null, the caller will throw a generic password-validation-failure exception.
