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What is this in VB? (from C#)

Posted on 2006-05-03
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Last Modified: 2010-04-23
Trying to write this correctly from C#

1)  public interface IMyPage { void MyPublicMethod(); }

2)
public partial class MyPage : Page, IMyPage
{
...
public void MyPublicMethod() { ... }
}

3)
((IMyPage)this.Page).MyPublicMethod().

Thanks
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Question by:born4code
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4 Comments
 
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Accepted Solution

by:
Mike Tomlinson earned 2000 total points
ID: 16602536
I'm not sure what Page is...are you inheriting from it or is it another Interface?

    Public Interface Page
        Sub MyPublicMethod()
    End Interface

    Public Interface IMyPage
        Sub MyPublicMethod()
    End Interface

    Partial Public Class MyPage
        Implements Page, IMyPage

        Public Sub MyPublicMethod1() Implements Page.MyPublicMethod

        End Sub

        Public Sub MyPublicMethod() Implements IMyPage.MyPublicMethod

        End Sub

    End Class

In VB you need to explicitly tell what method implements each piece of what Interface "contract".  As the example above shows, you can then easily handle it when two Interfaces have the same method name.

Not sure what you're doing in (3)...?

    Public Sub foo()
        Me.MyPublicMethod()
    End Sub
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Expert Comment

by:jononster
ID: 16603517
Point 3 would be:

CType(Me.Page,IMyPage).MyPublicMethod
0
 
LVL 86

Expert Comment

by:Mike Tomlinson
ID: 16606769
You shouldn't need to do any casting to call "MyPublicMethod" though...

If the class "is a" IMyPage because it implements that Interface then you should just be able to call it without any casting no?

I think C# is pickier and you need all the casting to appease the compiler.  You may need to go such antics if Option Strict is On in VB.
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LVL 2

Author Comment

by:born4code
ID: 16608966
Actually, the code is on different pages... i was lumping them.

It's good.
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