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SqlMembershipProvider.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)

abstract MinRequiredNonAlphanumericCharacters : int with get 
override MinRequiredNonAlphanumericCharacters : int with 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-alphabetic characters that must be entered to create a valid password for the SqlMembershipProvider object.

The MinRequiredNonAlphanumericCharacters property value is set in the application configuration using the minRequiredNonalphanumericCharacters attribute of the membership Element (ASP.NET Settings Schema) configuration element.

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

The following example shows the membership Element (ASP.NET Settings Schema) 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 one character.

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

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0, 2.0

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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

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