CODEWITHSUNDEEP
vb.netevents
Prankster
Prankster

Reputation: 4079

Does VB.NET support virtual events?

In continuation of this question. Does VB.NET supports virtual events?

Upvotes: 0

Views: 643

Answers (1)

JaredPar
JaredPar

Reputation: 755141

Does VB support the CLR notion of a virtual event

No. This is something we've looked into supporting but did not meet our current bar in the given language cycle.

Does VB support the idea of a hierarchy which customizes events

Yes. You can use the Custom event syntax to allow for hierarchy controlled eventing.

MustInherit Class Base
    Public Custom Event Event1 As EventHandler
        AddHandler(ByVal value As EventHandler)
            AddEvent1(value)
        End AddHandler

        RemoveHandler(ByVal value As EventHandler)
            RemoveEvent1(value)
        End RemoveHandler

        RaiseEvent(ByVal sender As Object, ByVal e As System.EventArgs)
            RaiseEvent1(sender, e)
        End RaiseEvent

    End Event

    Protected MustOverride Sub AddEvent1(ByVal value As EventHandler)
    Protected MustOverride Sub RemoveEvent1(ByVal value As EventHandler)
    Protected MustOverride Sub RaiseEvent1(ByVal sender As Object, ByVal e As EventArgs)

End Class

Upvotes: 4

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