Hi Jekke,
The VB.NET toolset can be a rather dodgy when it comes to namespace/class
resolution. You wouldn't perchance be placing your VB classes in a namespace
starting with 'GroupOne'?
This case shows that VB.NET isn't trying hard enough to find the class
you're referencing.
Whenever I hit situations like this, I find that declaring a namespace alias
forces the compiler to behave. Try this:
Imports Interfaces = GroupOne.TradingTools.Interfaces
Namespace GroupOne.AnythingElse
Public Class VBClient
Implements Interfaces.IMarketDataStreamer
Public ReadOnly Property QuoteManager() As Interfaces.EventManager
Implements Interfaces.IMarketDataStreamer.QuoteManager
Get
End Get
End Property
Public Property QuoteThreadPriority() As
System.Threading.ThreadPriority Implements
Interfaces.IMarketDataStreamer.QuoteThreadPriority
Get
End Get
Set(ByVal Value As System.Threading.ThreadPriority)
End Set
End Property
Public Sub StartStreaming() Implements
Interfaces.IMarketDataStreamer.StartStreaming
End Sub
Public Sub StopStreaming() Implements
Interfaces.IMarketDataStreamer.StopStreaming
End Sub
Public Sub TerminateSession() Implements
Interfaces.IMarketDataStreamer.TerminateSession
End Sub
Public ReadOnly Property TradeManager() As Interfaces.EventManager
Implements Interfaces.IMarketDataStreamer.TradeManager
Get
End Get
End Property
Public Property TradeThreadPriority() As
System.Threading.ThreadPriority Implements
Interfaces.IMarketDataStreamer.TradeThreadPriority
Get
End Get
Set(ByVal Value As System.Threading.ThreadPriority)
End Set
End Property
End Class
End Namespace
> -----Original Message-----
> From: Unmoderated discussion of advanced .NET topics.
> [mailto:[EMAIL PROTECTED] On Behalf Of Jekke Bladt
> Sent: Saturday, 18 December 2004 5:32 AM
> To: [email protected]
> Subject: [ADVANCED-DOTNET] Implementing a C# interface in VB.net
>
> All--
>
> I've got a weird error coming up based on the following interface:
>
> public interface IMarketDataStreamer
> {
> void StartStreaming();
> void StopStreaming();
> void TerminateSession();
> EventManager TradeManager { get; }
> EventManager QuoteManager { get; }
> ThreadPriority QuoteThreadPriority { get; set; }
> ThreadPriority TradeThreadPriority { get; set; } }
>
> When I auto-generate the implementation skeleton in VB.net, I
> get something like this (stuff snipped for clarity):
>
> Public Class BogusStreamer
> Implements IMarketDataStreamer
>
> Public ReadOnly Property QuoteManager() As EventManager
> Implements
> GroupOne.TradingTools.Interfaces.IMarketDataStreamer.QuoteManager
> Get
>
> End Get
> End Property
>
> Public ReadOnly Property TradeManager() As EventManager
> Implements
> GroupOne.TradingTools.Interfaces.IMarketDataStreamer.TradeManager
> Get
>
> End Get
> End Property
>
> End Class
>
> Both of the methods above give me a compiler error along the
> lines of
> "C:\ISEPerforce\GroupOne.CentralClassLibrary\GroupOne.CentralC
lassLibrar
> y.TheKitchenSink\BogusStreamer.vb(34): 'TradeManager' cannot
> implement 'TradeManager' because there is no matching
> property on interface 'IMarketDataStreamer'."
>
> I've checked to make sure there are no ambiguous references
> and get this message even if I explicitly spell out the type
> of EventManager in both signatures and even after I've
> provided a return value.
>
> What am I doing wrong?
>
> TIA
>
> --Jekke
>
> ===================================
> This list is hosted by DevelopMentor. http://www.develop.com
> Some .NET courses you may be interested in:
>
> Essential .NET: building applications and components with C#
> November 29 - December 3, in Los Angeles
> http://www.develop.com/courses/edotnet
>
> View archives and manage your subscription(s) at
> http://discuss.develop.com
>
===================================
This list is hosted by DevelopMentor� http://www.develop.com
View archives and manage your subscription(s) at http://discuss.develop.com
