ConnectionSettings.ConnectAsUserPassword Property
SQL Server 2008 R2
Gets or sets the password for the user when connecting using impersonation.
Assembly: Microsoft.SqlServer.ConnectionInfo (in Microsoft.SqlServer.ConnectionInfo.dll)
If the ConnectAsUser property is set to True, the ConnectAsUserName property and the ConnectAsUserPassword property are used to acquire credentials for impersonation. Any subsequent connection is made with the credentials of the specified user, and the LoginSecure property, the Login property, and the Password property are ignored.