UnlockUser Method

SqlMembershipProvider.UnlockUser Method

Clears the user's locked-out status so that the membership user can be validated.

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

public override bool UnlockUser(
	string username


Type: System.String

The name of the membership user to clear the locked-out status for.

Return Value

Type: System.Boolean
true if the membership user was successfully unlocked; otherwise, false. A value of false is also returned if the user does not exist in the database.


username is an empty string, is longer than 256 characters, or contains a comma.


username is null.

Users are most commonly locked out and cannot be validated by the ValidateUser method when the MaxInvalidPasswordAttempts is exceeded within the PasswordAttemptWindow.

Leading and trailing spaces are trimmed from the username parameter value.

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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