Jekke,
If you have a method of your interface declared as
> ThreadPriority TradeThreadPriority { get; set; }
you can't choose to implement only the get method of it
(ReadOnly keyword notwithstanding). Interfaces are an
all-or-nothing proposition.
Your IL decompilation is probably just symptomatic of
the fact that the compiler can't match up your implementation
with the interface.
I think that 'hidebysig' is used to mark functions that
implement internal logic (e.g. get/set, constructors, event
handling logic), rather than functions intended to be called
by name directly - although this is based on observation rather
than hard knowledge.
John
> Looking a little bit deeper into the question, I noticed some
> differences in the MISL code between this method one that works fine:
>
> The method that's causing grief:
> .method public hidebysig newslot specialname abstract virtual
> instance class
> [GroupOne.Utilities.EventQueues]GroupOne.Utilities.EventQueues
> .EventMana
> ger
> get_QuoteManager() cil managed
> {
> } // end of method IMarketDataStreamer::get_QuoteManager
>
> An old method that isn't:
> .method public newslot specialname abstract strict virtual
> instance class
> [GroupOne.CentralClassLibrary.TheKitchenSink]GroupOne.CentralC
> lassLibrar
> y.TheKitchenSink.orPortfolio
> get_Portfolio() cil managed
> {
> } // end of method IHyperfeedPump::get_Portfolio
>
>
> Now, I think I know what the "strict" is, but WTH is
> "hidebysig?" Could
> it have anything to do with my problem or am I just looking
> in entirely
> the wrong place?
>
> TIA
>
> --Jekke
>
> -----Original Message-----
> From: Unmoderated discussion of advanced .NET topics.
> [mailto:[EMAIL PROTECTED] On Behalf Of Jekke Bladt
> Sent: Friday, December 17, 2004 1:32 PM
> To: ADVANCED-DOTNET@DISCUSS.DEVELOP.COM
> 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
>
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===================================
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Essential .NET: building applications and components with C#
November 29 - December 3, in Los Angeles
http://www.develop.com/courses/edotnet
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