UserId

Record.UserId property

Gets or sets UPN (User Principal Name) of the user who performed the action (specified in the Operation property) that resulted in the record being logged; for example, my_name@my_domain_name. Note that records for activity performed by system accounts (such as SHAREPOINT\system or NT AUTHORITY\SYSTEM) are also included. Mandatory: Yes

public string UserId { get; set; }

See Also