Null reference but it's not?
- by Clint Davis
This is related to my previous question but it is a different problem.
I have two classes: Server and Database.
Public Class Server
Private _name As String
Public Property Name() As String
Get
Return _name
End Get
Set(ByVal value As String)
_name = value
End Set
End Property
Private _databases As List(Of Database)
Public Property Databases() As List(Of Database)
Get
Return _databases
End Get
Set(ByVal value As List(Of Database))
_databases = value
End Set
End Property
Public Sub LoadTables()
Dim db As New Database(Me)
db.Name = "test"
Databases.Add(db)
End Sub
End Class
Public Class Database
Private _server As Server
Private _name As String
Public Property Name() As String
Get
Return _name
End Get
Set(ByVal value As String)
_name = value
End Set
End Property
Public Property Server() As Server
Get
Return _server
End Get
Set(ByVal value As Server)
_server = value
End Set
End Property
Public Sub New(ByVal ser As Server)
Server = ser
End Sub
End Class
Fairly simple. I use like this:
Dim s As New Server
s.Name = "Test"
s.LoadTables()
The problem is in the LoadTables in the Server class. When it hits Databases.Add(db) it gives me a NullReference error (Object reference not set). I don't understand how it is getting that, all the objects are set. Any ideas? Thanks.
