Membership.PasswordStrengthRegularExpression Property

Reference

Definition

Namespace:: System.Web.Security

Assembly:: System.Web.dll

Important

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Gets the regular expression used to evaluate a password.

public:
 static property System::String ^ PasswordStrengthRegularExpression { System::String ^ get(); };

public static string PasswordStrengthRegularExpression { get; }

static member PasswordStrengthRegularExpression : string

Public Shared ReadOnly Property PasswordStrengthRegularExpression As String

Property Value

String

A regular expression used to evaluate a password.

Examples

The following code example shows the membership configuration element in the system.web section of the application's Web.config file. It specifies that the application use an instance of the SqlMembershipProvider class to provide membership services, and sets the passwordStrengthRegularExpression attribute to a regular expression that validates the password meets the following criteria:

Is at least six characters long.
Contains at least one digit.
Contains at least one special (non-alphanumeric) character.
Contains at least one lowercase letter.
Contains at least one uppercase letter.

If the password does not meet these criteria, the password is not accepted by the membership provider.

<membership defaultProvider="SqlProvider"  
  userIsOnlineTimeWindow = "20>  
  <providers>  
    <add  
      name="SqlProvider"  
      type="System.Web.Security.SqlMembershipProvider"  
      connectionStringName="SqlServices"  
      requiresQuestionAndAnswer="true"  
      passwordStrengthRegularExpression="(?=.{6,})(?=(.*\d){1,})(?=(.*\W){1,})(?=.*[a-z])(?=.*[A-Z])"  
      />  
   </providers>  
</membership>

Remarks

The PasswordStrengthRegularExpression property gets the regular expression used to evaluate password complexity from the provider specified in the Provider property.

The PasswordStrengthRegularExpression property is set in the application configuration using the passwordStrengthRegularExpression attribute of the membership configuration element.

For more information about regular expressions, see .NET Framework Regular Expressions.

Applies to

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