Interface problem

[John]

Hi

I have implemented an interface as below. I am getting a "Class
'HelloWordPlugi n' must implement 'Sub PerformAction() ' for interface
'IPlugin'." error. What is the problem and how can I fix it?

Thanks

Regards


Public Interface IPlugin
Sub PerformAction()
End Interface

Public Class HelloWordPlugin
Implements IPlugin

Public Sub PerformAction()
Console.WriteLi ne("Hello, World!")
End Sub
End Class

[_AnonCoward]

Re: Interface problem


"John" <John@nospam.in fovis.co.uk> wrote in message
news:e9dFlxniFH A.3680@TK2MSFTN GP10.phx.gbl...
: Hi
:
: I have implemented an interface as below. I am getting a
: "Class 'HelloWordPlugi n' must implement 'Sub PerformAction() '
: for interface 'IPlugin'." error. What is the problem and how
: can I fix it?
:
: Thanks
:
: Regards
:
:
: Public Interface IPlugin
: Sub PerformAction()
: End Interface
:
: Public Class HelloWordPlugin
: Implements IPlugin
:
: Public Sub PerformAction()
: Console.WriteLi ne("Hello, World!")
: End Sub
: End Class



'-----------------------------------------------------------------------
Public Interface IPlugin
Sub PerformAction()
End Interface

Public Class HelloWordPlugin
Implements IPlugin

Public Sub PerformAction() Implements IPlugin.Perform Action
Console.WriteLi ne("Hello, World!")
End Sub
End Class
'-----------------------------------------------------------------------

[Armin Zingler]

Re: Interface problem

"John" <John@nospam.in fovis.co.uk> schrieb[color=blue]
> Hi
>
> I have implemented an interface as below. I am getting a "Class
> 'HelloWordPlugi n' must implement 'Sub PerformAction() ' for interface
> 'IPlugin'." error. What is the problem and how can I fix it?
>
> Thanks
>
> Regards
>
>
> Public Interface IPlugin
> Sub PerformAction()
> End Interface
>
> Public Class HelloWordPlugin
> Implements IPlugin
>
> Public Sub PerformAction()
> Console.WriteLi ne("Hello, World!")
> End Sub
> End Class[/color]

http://msdn.microsoft.com/library/en-us/vbcn7/html/vaconInterfaces.asp

Same available via <F1>


Armin

[Herfried K. Wagner [MVP]]

Re: Interface problem

"John" <John@nospam.in fovis.co.uk> schrieb:[color=blue]
> I have implemented an interface as below. I am getting a "Class
> 'HelloWordPlugi n' must implement 'Sub PerformAction() ' for interface
> 'IPlugin'." error. What is the problem and how can I fix it?[/color]

VB.NET doesn't determine which method in a class implementing an interface
implements a certain method of the interface by comparing the methods'
names. Instead, you will have to declaratively specify which method of the
interface the method implements.
[color=blue]
> Public Interface IPlugin
> Sub PerformAction()
> End Interface
>
> Public Class HelloWordPlugin
> Implements IPlugin
>
> Public Sub PerformAction()
> Console.WriteLi ne("Hello, World!")
> End Sub
> End Class[/color]

\\\
Public Class HelloWorldPlugi n
Implements IPlugin

Public Sub PerformAction() Implements IPlugin.Perform Action
...
End Sub
End Class
///

--
M S Herfried K. Wagner
M V P <URL:http://dotnet.mvps.org/>
V B <URL:http://classicvb.org/petition/>