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Membership.MinRequiredNonAlphanumericCharacters Property

Gets the minimum number of special characters that must be present in a valid password.

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

public static int MinRequiredNonAlphanumericCharacters { get; }

Property Value

Type: System.Int32
The minimum number of special characters that must be present in a valid password.

The MinRequiredNonAlphanumericCharacters property returns the minimum number of special, non-alphanumeric characters that must be entered to create a valid password for the membership provider specified in the Provider property.

The MinRequiredNonAlphanumericCharacters property value is set in the application configuration using the minRequiredNonalphanumericCharacters attribute of the membership configuration element.

A non-alphanumeric character is a character for which the IsLetterOrDigit method returns false.

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 minRequiredNonalphanumericCharacters attribute to 1 character.

<membership defaultProvider="SqlProvider"
  userIsOnlineTimeWindow = "20>
  <providers>
    <add
      name="SqlProvider"
      type="System.Web.Security.SqlMembershipProvider"
      connectionStringName="SqlServices"
      requiresQuestionAndAnswer="true"
      minRequiredNonalphanumericCharacters="1"
      />
  </providers>
</membership>

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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