Reads a UserNameSecurityToken from the specified reader.
public override SecurityToken ReadToken(
An XML reader positioned at the start element of the token.
reader is null.
The token cannot be read.
The password was not in plain text format.
An unknown element was found in the security token or the username was not specified.
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.