NewEnum in VB.NET?

[danielkw]

In VB6 you can create your own enumerators by creating a function like this:
function Enumerator() as IUNKnown
Enumerator = col.[_NewEnum]
end function

how do I do this in VB.NET?

[axion_sa]

Ah, this is where it becomes a little more convoluted. Have a look at http://peisker.de/index.html?http://...e/vb/lists.htm

[Shurijo]

Friend Enum myEnums
    value1
    value2
    value3
End Enum

You mean like this?

[danielkw]

no I don't mean creating those enumerators. what i am talking about is creating the ability to enumerate my own classes, like:

dim ChildClass as Child
for each ChildClass In MyOwnClass
...
next

[nswan]

you can just create a collection of objects from your class can't you?

[danielkw]

how?

[nswan]

        
        Dim myChild1 As New Child()
        Dim myChild2 As New Child()
        Dim myCollection As New System.Collections.ArrayList()

        myCollection.Add(myChild1)
        myCollection.Add(myChild2)

        Dim tempChild As Child
        For Each tempChild In myCollection
            MsgBox(tempChild.name)
        Next

    
    Public Class Child
        Public name As String = "Nick"
    End Class

i don't know if this is wot you mean?

Hope it helps
Nick

[danielkw]

no that's not what i mean. i will give you an example in Vb6 of what I want to do:
Vb6:

Class Test
    Private p_Collection as Collection
    Sub Add(o)
        p_Collection.Add(o)
    End Sub
    Public Property Test() As IUnknown
        Test = p_Collection.[_NewEnum]
    End Property
End Class
 
Public Class TestChild
    Public Var1 As String
End Class
 
Form1:
Dim X As New Test
Dim Child As New TestChild
X.Add(Child)
 
' This is what I want to do in .NET
' using my own classes
For Each Child In Test
    Msgbox Child.Var1
Next

And just to make this even more clear:
I don't want the solution "Why don't you just make the collection public and access it during the For..Each instead of your class..."

[nswan]

go to the original link up the top:
http://peisker.de/index.html?http://...e/vb/lists.htm

there is a bit on the second third of the article that should help

Nick

[MrNorth]

isn't this a matter of implementing the IEnumerable interface?

As far as I recall this interface must be implemented if you want to do a

for each A as B in C

/Henrik

[MrNorth]

isn't this a matter of implementing the IEnumerable interface?

As far as I recall this interface must be implemented if you want to do a

for each A as B in C

/Henrik

[danielkw]

maybe. i dont know. can you give me an example?

[axion_sa]

Originally posted by danielkw
maybe. i dont know. can you give me an example?

Perhaps you should read the content on the link I posted