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

Home
VB.Net Tutorial
1.Language Basics
2.Data Type
3.Operator
4.Statements
5.Date Time
6.Class Module
7.Development
8.Collections
9.Generics
10.Attributes
11.Event
12.LINQ
13.Stream File
14.GUI
15.GUI Applications
16.Windows Presentation Foundation
17.2D Graphics
18.I18N Internationlization
19.Reflection
20.Regular Expressions
21.Security
22.Socket Network
23.Thread
24.Windows
25.XML
26.Database ADO.net
27.Design Patterns
VB.Net Tutorial » Event » Event 
11.1.4.Subclass EventArgs to create your own event arguments
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 MyEventArgsHandles 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 handlerAdd and remove event handler
11.1.9.Handle events from more than one componentsHandle events from more than one components
11.1.10.Add, remove event handler to/from ToggleButtonAdd, remove event handler to/from ToggleButton
11.1.11.Use one method to handle more than one RadioButton click eventUse one method to handle more than one RadioButton click event
11.1.12.Get event sender typeGet event sender type
11.1.13.Instantiating the Action<(Of <(T>)>) delegate rather than explicitly defining a new delegate and assigning a named method
java2s.com  | Contact Us | Privacy Policy
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.