Hooking ObjectDataSource Up to a Shared Generic Method

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Aeden Jameson - 20 Apr 2007 21:17 GMT

Hi Folks,

I'm working with the ObjectDataSource class and I'm stuck on how I
can specify a shared generic method of my DAO in the SelectMethod
property of an ObjectDataSource. For example, I have

Public Class Repository

Public Shared Function GetByID(Of T)(ByVal ID As Object) As T

End Class

I'd like to be to call something like Respository.GetByID(Of Order)
(Session("TheOrderID"))

Cheers,
Aeden

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Mattias Sjögren - 20 Apr 2007 22:05 GMT

Aeden,

> I'm working with the ObjectDataSource class and I'm stuck on how I
>can specify a shared generic method of my DAO in the SelectMethod
[quoted text clipped - 8 lines]
>I'd like to be to call something like Respository.GetByID(Of Order)
>(Session("TheOrderID"))

ObjectDataSource doesn't support generic methods, but seems to work
with generic types.

If you change your type to

Public Class Repository(Of T)
Public Shared Function GetByID(ByVal ID As Object) As T
End Class

you should be able to use it by specifying
TypeName="Repository`1[Order]".

Mattias

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Mattias Sjögren [C# MVP] mattias @ mvps.org
http://www.msjogren.net/dotnet/ | http://www.dotnetinterop.com
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Hooking ObjectDataSource Up to a Shared Generic Method

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