How to use multiple WellKnownObjects with multilayer interface inheritance on the same Remoting URI?












0















I'm trying to use Remoting in VB.NET using multilayer inherited interfaces.



The two base interfaces are ICallback and ICallTarget. They are both inherited by the interface IClass2Remote.



I have multiple WellKnownServiceTypes registered on the server. On the client, I can create and use a proxy to IClass1Remote just fine. I can also create a proxy to IClass2Remote just fine. However, when trying to call a sub or function or trying to add an event handler to the Callback event defined in the interface IClass2Remote, at runtime I get an error from the server saying:



Attempted to call a method declared on type 'Class2Remote' on an object which exposes 'Class1Remote'.



Since I am registering both interface classes as WellKnownServices on the server, why is this happening? And how do I fix this?



   Public Interface ICallTarget
<DispId(1)> Sub Start_CallTarget(Optional ByVal vData As Object = "")
<DispId(2)> Sub Initialize_CallTarget(Optional ByVal vData As Object = "")
<DispId(3)> Sub Terminate_CallTarget()
End Interface

Public Interface ICallBack
<DispId(4)> Event Callback As CallbackEvent
<DispId(5)> Sub Start_CallBack(ByVal sDocNum As String, ByVal sUserId As String, ByVal sComputerName As String)
<DispId(6)> Property PleaseDestroy_CallBack() As Boolean

End Interface

Public Interface IClass2Remote
Inherits ICallback, ICallTarget
<DispId(7)> Sub Destroy()
End Interface



RemotingConfiguration.RegisterWellKnownServiceType(
GetType(Class1Remote),
"Class1Remote", WellKnownObjectMode.SingleCall)

RemotingConfiguration.RegisterWellKnownServiceType(
GetType(Class2Remote),
"Class2Remote", WellKnownObjectMode.SingleCall)









share|improve this question





























    0















    I'm trying to use Remoting in VB.NET using multilayer inherited interfaces.



    The two base interfaces are ICallback and ICallTarget. They are both inherited by the interface IClass2Remote.



    I have multiple WellKnownServiceTypes registered on the server. On the client, I can create and use a proxy to IClass1Remote just fine. I can also create a proxy to IClass2Remote just fine. However, when trying to call a sub or function or trying to add an event handler to the Callback event defined in the interface IClass2Remote, at runtime I get an error from the server saying:



    Attempted to call a method declared on type 'Class2Remote' on an object which exposes 'Class1Remote'.



    Since I am registering both interface classes as WellKnownServices on the server, why is this happening? And how do I fix this?



       Public Interface ICallTarget
    <DispId(1)> Sub Start_CallTarget(Optional ByVal vData As Object = "")
    <DispId(2)> Sub Initialize_CallTarget(Optional ByVal vData As Object = "")
    <DispId(3)> Sub Terminate_CallTarget()
    End Interface

    Public Interface ICallBack
    <DispId(4)> Event Callback As CallbackEvent
    <DispId(5)> Sub Start_CallBack(ByVal sDocNum As String, ByVal sUserId As String, ByVal sComputerName As String)
    <DispId(6)> Property PleaseDestroy_CallBack() As Boolean

    End Interface

    Public Interface IClass2Remote
    Inherits ICallback, ICallTarget
    <DispId(7)> Sub Destroy()
    End Interface



    RemotingConfiguration.RegisterWellKnownServiceType(
    GetType(Class1Remote),
    "Class1Remote", WellKnownObjectMode.SingleCall)

    RemotingConfiguration.RegisterWellKnownServiceType(
    GetType(Class2Remote),
    "Class2Remote", WellKnownObjectMode.SingleCall)









    share|improve this question



























      0












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      0








      I'm trying to use Remoting in VB.NET using multilayer inherited interfaces.



      The two base interfaces are ICallback and ICallTarget. They are both inherited by the interface IClass2Remote.



      I have multiple WellKnownServiceTypes registered on the server. On the client, I can create and use a proxy to IClass1Remote just fine. I can also create a proxy to IClass2Remote just fine. However, when trying to call a sub or function or trying to add an event handler to the Callback event defined in the interface IClass2Remote, at runtime I get an error from the server saying:



      Attempted to call a method declared on type 'Class2Remote' on an object which exposes 'Class1Remote'.



      Since I am registering both interface classes as WellKnownServices on the server, why is this happening? And how do I fix this?



         Public Interface ICallTarget
      <DispId(1)> Sub Start_CallTarget(Optional ByVal vData As Object = "")
      <DispId(2)> Sub Initialize_CallTarget(Optional ByVal vData As Object = "")
      <DispId(3)> Sub Terminate_CallTarget()
      End Interface

      Public Interface ICallBack
      <DispId(4)> Event Callback As CallbackEvent
      <DispId(5)> Sub Start_CallBack(ByVal sDocNum As String, ByVal sUserId As String, ByVal sComputerName As String)
      <DispId(6)> Property PleaseDestroy_CallBack() As Boolean

      End Interface

      Public Interface IClass2Remote
      Inherits ICallback, ICallTarget
      <DispId(7)> Sub Destroy()
      End Interface



      RemotingConfiguration.RegisterWellKnownServiceType(
      GetType(Class1Remote),
      "Class1Remote", WellKnownObjectMode.SingleCall)

      RemotingConfiguration.RegisterWellKnownServiceType(
      GetType(Class2Remote),
      "Class2Remote", WellKnownObjectMode.SingleCall)









      share|improve this question
















      I'm trying to use Remoting in VB.NET using multilayer inherited interfaces.



      The two base interfaces are ICallback and ICallTarget. They are both inherited by the interface IClass2Remote.



      I have multiple WellKnownServiceTypes registered on the server. On the client, I can create and use a proxy to IClass1Remote just fine. I can also create a proxy to IClass2Remote just fine. However, when trying to call a sub or function or trying to add an event handler to the Callback event defined in the interface IClass2Remote, at runtime I get an error from the server saying:



      Attempted to call a method declared on type 'Class2Remote' on an object which exposes 'Class1Remote'.



      Since I am registering both interface classes as WellKnownServices on the server, why is this happening? And how do I fix this?



         Public Interface ICallTarget
      <DispId(1)> Sub Start_CallTarget(Optional ByVal vData As Object = "")
      <DispId(2)> Sub Initialize_CallTarget(Optional ByVal vData As Object = "")
      <DispId(3)> Sub Terminate_CallTarget()
      End Interface

      Public Interface ICallBack
      <DispId(4)> Event Callback As CallbackEvent
      <DispId(5)> Sub Start_CallBack(ByVal sDocNum As String, ByVal sUserId As String, ByVal sComputerName As String)
      <DispId(6)> Property PleaseDestroy_CallBack() As Boolean

      End Interface

      Public Interface IClass2Remote
      Inherits ICallback, ICallTarget
      <DispId(7)> Sub Destroy()
      End Interface



      RemotingConfiguration.RegisterWellKnownServiceType(
      GetType(Class1Remote),
      "Class1Remote", WellKnownObjectMode.SingleCall)

      RemotingConfiguration.RegisterWellKnownServiceType(
      GetType(Class2Remote),
      "Class2Remote", WellKnownObjectMode.SingleCall)






      vb.net interface remoting






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      edited Jan 2 at 1:48







      Greg Nutt

















      asked Jan 2 at 0:46









      Greg NuttGreg Nutt

      12




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