Generics in VB.Net?

In C++ I can write template classes and in C# they have generic classes that
are something like C++ template classes. Is there currently a why to write
them in VB? MS is adding C++ type functionality like operator overloading
to VB in version 2.0 of the .Net Framework. Will there be a way in version
2.0 to write generic classes in VB?

If not does anyone know the syntax to create an instance of a C# generic
class in VB?

Thanks

Robby

Ken
Mon Dec 13 05:14:54 CST 2004

Hi,

In vb.net 2005 they will be supported.
http://msdn2.microsoft.com/library/x6z0kw1a.aspx

Ken
------------------
"Robby" <edmund@not.my.email.com> wrote in message
news:e9UioNQ4EHA.2288@TK2MSFTNGP11.phx.gbl...

In C++ I can write template classes and in C# they have generic classes that
are something like C++ template classes. Is there currently a why to write
them in VB? MS is adding C++ type functionality like operator overloading
to VB in version 2.0 of the .Net Framework. Will there be a way in version
2.0 to write generic classes in VB?

If not does anyone know the syntax to create an instance of a C# generic
class in VB?

Thanks

Robby

Robby
Mon Dec 13 05:37:58 CST 2004


Thanks Ken. I also found this article about generic collections.

http://msdn.microsoft.com/msdnmag/issues/04/09/AdvancedBasics/default.aspx

In this article they say that you will be able to use generics on methods
with the following syntax;

Public Sub Swap(Of MyType) (ByRef item1 As MyType, _
ByRef item2 As MyType)
Dim temp As MyType
temp = item1
item1 = item2
item2 = temp
End Sub

Do you know if this will be able to be done on class definitions so that
generic classes that are not collections can be created. For example, will
the following be valid in VB.Net 2005?

Public Class MyGenericClass(Of MyType)

Private data1 As MyType

Public Sub New(Of MyType) (newData as MyType)
data1 = newData
End Sub

Public Sub DoStuff(Of MyType) (data As MyType, repeat As Long)
'Do stuff
End Sub

End Class

Thanks again.

Robby.



"Ken Tucker [MVP]" <vb2ae@bellsouth.net> wrote in message
news:uUe77TQ4EHA.2572@tk2msftngp13.phx.gbl...
> Hi,
>
> In vb.net 2005 they will be supported.
> http://msdn2.microsoft.com/library/x6z0kw1a.aspx
>
> Ken
> ------------------
> "Robby" <edmund@not.my.email.com> wrote in message
> news:e9UioNQ4EHA.2288@TK2MSFTNGP11.phx.gbl...
>
> In C++ I can write template classes and in C# they have generic classes
> that
> are something like C++ template classes. Is there currently a why to
> write
> them in VB? MS is adding C++ type functionality like operator overloading
> to VB in version 2.0 of the .Net Framework. Will there be a way in
> version
> 2.0 to write generic classes in VB?
>
> If not does anyone know the syntax to create an instance of a C# generic
> class in VB?
>
> Thanks
>
> Robby
>
>
>

Tom
Mon Dec 13 05:43:37 CST 2004

On Tue, 14 Dec 2004 00:03:39 +1300, Robby wrote:

> In C++ I can write template classes and in C# they have generic classes that
> are something like C++ template classes. Is there currently a why to write
> them in VB? MS is adding C++ type functionality like operator overloading
> to VB in version 2.0 of the .Net Framework. Will there be a way in version
> 2.0 to write generic classes in VB?
>
> If not does anyone know the syntax to create an instance of a C# generic
> class in VB?

They will be there in 2005. See
http://msdn2.microsoft.com/library/w256ka79.aspx for additional info, and
also http://msdn2.microsoft.com/library/4a1b71ta.aspx.
--
Tom Porterfield

Robby
Mon Dec 13 05:51:47 CST 2004


Thanks Tom. This answers my new question to Ken about non-collection
generic classes.

Robby


"Tom Porterfield" <tpporter@mvps.org> wrote in message
news:1uen529jqxjzg.dlg@tpportermvps.org...
> On Tue, 14 Dec 2004 00:03:39 +1300, Robby wrote:
>
>> In C++ I can write template classes and in C# they have generic classes
>> that
>> are something like C++ template classes. Is there currently a why to
>> write
>> them in VB? MS is adding C++ type functionality like operator
>> overloading
>> to VB in version 2.0 of the .Net Framework. Will there be a way in
>> version
>> 2.0 to write generic classes in VB?
>>
>> If not does anyone know the syntax to create an instance of a C# generic
>> class in VB?
>
> They will be there in 2005. See
> http://msdn2.microsoft.com/library/w256ka79.aspx for additional info, and
> also http://msdn2.microsoft.com/library/4a1b71ta.aspx.
> --
> Tom Porterfield

Robby
Mon Dec 13 05:54:23 CST 2004

Hi Ken

Tom gave me a link that answers this new question about non-collection
generic classes. It seems I will not have to repeat the "(Of MyType)" in
the class method definitions.

Thanks again.

Robby


"Robby" <edmund@not.my.email.com> wrote in message
news:%23I3PtgQ4EHA.3380@TK2MSFTNGP09.phx.gbl...
>
> Thanks Ken. I also found this article about generic collections.
>
> http://msdn.microsoft.com/msdnmag/issues/04/09/AdvancedBasics/default.aspx
>
> In this article they say that you will be able to use generics on methods
> with the following syntax;
>
> Public Sub Swap(Of MyType) (ByRef item1 As MyType, _
> ByRef item2 As MyType)
> Dim temp As MyType
> temp = item1
> item1 = item2
> item2 = temp
> End Sub
>
> Do you know if this will be able to be done on class definitions so that
> generic classes that are not collections can be created. For example,
> will the following be valid in VB.Net 2005?
>
> Public Class MyGenericClass(Of MyType)
>
> Private data1 As MyType
>
> Public Sub New(Of MyType) (newData as MyType)
> data1 = newData
> End Sub
>
> Public Sub DoStuff(Of MyType) (data As MyType, repeat As Long)
> 'Do stuff
> End Sub
>
> End Class
>
> Thanks again.
>
> Robby.
>
>
>
> "Ken Tucker [MVP]" <vb2ae@bellsouth.net> wrote in message
> news:uUe77TQ4EHA.2572@tk2msftngp13.phx.gbl...
>> Hi,
>>
>> In vb.net 2005 they will be supported.
>> http://msdn2.microsoft.com/library/x6z0kw1a.aspx
>>
>> Ken
>> ------------------
>> "Robby" <edmund@not.my.email.com> wrote in message
>> news:e9UioNQ4EHA.2288@TK2MSFTNGP11.phx.gbl...
>>
>> In C++ I can write template classes and in C# they have generic classes
>> that
>> are something like C++ template classes. Is there currently a why to
>> write
>> them in VB? MS is adding C++ type functionality like operator
>> overloading
>> to VB in version 2.0 of the .Net Framework. Will there be a way in
>> version
>> 2.0 to write generic classes in VB?
>>
>> If not does anyone know the syntax to create an instance of a C# generic
>> class in VB?
>>
>> Thanks
>>
>> Robby
>>
>>
>>
>
>