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ActiveDirectoryMembershipProvider.GetUser Method (Object, Boolean)

Gets the membership user information associated with the specified user key.

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

[DirectoryServicesPermissionAttribute(SecurityAction.InheritanceDemand, Unrestricted = true)]
[DirectoryServicesPermissionAttribute(SecurityAction.Demand, Unrestricted = true)]
[DirectoryServicesPermissionAttribute(SecurityAction.Assert, Unrestricted = true)]
public override MembershipUser GetUser(
	Object providerUserKey,
	bool userIsOnline


Type: System.Object
The unique identifier for the user.
Type: System.Boolean
The GetUser method ignores this parameter.

Return Value

Type: System.Web.Security.MembershipUser
A MembershipUser instance representing the user specified. If no user is found in the Active Directory data store for the specified providerUserKey value, null is returned.


The GetUser method is called before the ActiveDirectoryMembershipProvider instance is initialized.


providerUserKey is not of type SecurityIdentifier.


providerUserKey is null.

The GetUser method is called by the Membership class to retrieve information on the specified user from the Active Directory data store.

The search looks for a user instance where the objectSID attribute matches the providerUserKey parameter.

The provider uses a subtree search starting at the search point specified in the connection string. See the ActiveDirectoryMembershipProvider class topic for more information about connection strings.

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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