Forum class (member) explination??

[drfunkie]

OK, i'm making some big changes to the code, but can't figure out some of the values or comming from.

  For example: Where is the value for the ByVal memberUserId comming from?

<code>
Namespace WebModules.Forums.Business

  Public NotInheritable Class Member
    Inherits Wrox.WebModules.Business.BizObject

'(memberUserID) comes from what and where?

Public Function LoadFromUser(ByVal memberUserId As Integer) As Integer

      Dim members As New Data.Members(mySettings.ConnectionString)
      myMemberId = members.GetMemberId(memberUserId)

      If myMemberId = -1 Then
        ResetProperties()
      Else
        LoadFromId()
      End If

      Return myMemberId

    End Function</code>

Someone Please explain this code with some illustrations if possible.