Subclass EventArgs to create your own event arguments : Event « Event « VB.Net Tutorial

1. VB.Net Tutorial
2. Event
3. Event

Module Module1

    Class MyEventArgs
        Inherits System.EventArgs

        Public Message As String
        Public Time As DateTime

        Public Sub New(ByVal S As String, ByVal DT As DateTime)
            MyBase.New()
            Message = S
            Time = DT
        End Sub
    End Class

    Class MyMonitor
        Public Event EventStart(ByVal E As Object, ByVal Args As MyEventArgs)

        Public Sub GenerateEvent()
            Dim Args As New MyEventArgs("Hacker, Hacker", Now())

            RaiseEvent EventStart(Me, Args)
        End Sub
    End Class

    Dim WithEvents HackerAlarm As New MyMonitor()

    Sub Attack(ByVal O As Object, ByVal Args As MyEventArgs) Handles HackerAlarm.EventStart
        Console.WriteLine("Hack Attack in progress")
        Console.WriteLine(Args.Message)
        Console.WriteLine(Args.Time)
    End Sub

    Sub Main()
        HackerAlarm.GenerateEvent()
    End Sub
End Module

Hack Attack in progress
Hacker, Hacker
11/05/2007 9:33:47 PM

11.1.Event
	11.1.1.	Raise Events
	11.1.2.	Multiple Event Handler
	11.1.3.	Event handler
	11.1.4.	Subclass EventArgs to create your own event arguments
	11.1.5.	Inherit Event
	11.1.6.	Custom event handler
	11.1.7.	WithEvents and Event method
	11.1.8.	Add and remove event handler
	11.1.9.	Handle events from more than one components
	11.1.10.	Add, remove event handler to/from ToggleButton
	11.1.11.	Use one method to handle more than one RadioButton click event
	11.1.12.	Get event sender type
	11.1.13.	Instantiating the Action<(Of <(T>)>) delegate rather than explicitly defining a new delegate and assigning a named method