Application.ApplicationExit : Application « System.Windows.Forms « VB.Net by API

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VB.Net by API » System.Windows.Forms » Application 




Application.ApplicationExit
  


Imports System.Windows.Forms

Public Class Form1
    Inherits System.Windows.Forms.Form
    Friend WithEvents button4 As System.Windows.Forms.Button
    Friend WithEvents button3 As System.Windows.Forms.Button
    Friend WithEvents button2 As System.Windows.Forms.Button
    Friend WithEvents button1 As System.Windows.Forms.Button

    Public Sub New()
        MyBase.New()

        Me.button4 = New System.Windows.Forms.Button()
        Me.button3 = New System.Windows.Forms.Button()
        Me.button2 = New System.Windows.Forms.Button()
        Me.button1 = New System.Windows.Forms.Button()
        Me.SuspendLayout()
        '
        Me.button4.Location = New System.Drawing.Point(24127)
        Me.button4.Name = "button4"
        Me.button4.Size = New System.Drawing.Size(14423)
        Me.button4.TabIndex = 7
        Me.button4.Text = "Show MessageBox"
        '
        Me.button3.Location = New System.Drawing.Point(2490)
        Me.button3.Name = "button3"
        Me.button3.Size = New System.Drawing.Size(14423)
        Me.button3.TabIndex = 6
        Me.button3.Text = "Throw Exception"
        '
        Me.button2.Location = New System.Drawing.Point(2453)
        Me.button2.Name = "button2"
        Me.button2.Size = New System.Drawing.Size(14423)
        Me.button2.TabIndex = 5
        Me.button2.Text = "Application.ExitThread"
        '
        Me.button1.Location = New System.Drawing.Point(2416)
        Me.button1.Name = "button1"
        Me.button1.Size = New System.Drawing.Size(14423)
        Me.button1.TabIndex = 4
        Me.button1.Text = "Application.Exit"
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(513)
        Me.ClientSize = New System.Drawing.Size(192166)
        Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.button4, Me.button3, Me.button2, Me.button1})
        Me.ResumeLayout(False)

    End Sub

    Shared Sub App_Exit(ByVal sender As Object, ByVal e As EventArgs)
        System.Diagnostics.Debug.WriteLine("App_Exit")
    End Sub

    Shared Sub App_Idle(ByVal sender As Object, ByVal e As EventArgs)
        System.Diagnostics.Debug.WriteLine("App_Idle")
    End Sub

    Shared Sub App_ThreadingException(ByVal sender As Object, ByVal e As System.Threading.ThreadExceptionEventArgs)
        System.Diagnostics.Debug.WriteLine("App_ThreadException")
        Dim msg As String = "A problem has occurred in this application." & vbCrLf & vbCrLf & _
            vbTab & e.Exception.Message & vbCrLf & vbCrLf & _
            "Would you like to continue the application so that " & vbCrLf & _
            "you can save your work?"
        Dim res As DialogResult = MessageBox.Show(msg, "Unexpected Error", MessageBoxButtons.YesNo)
        If res = System.Windows.Forms.DialogResult.Yes Then Exit Sub
        Application.Exit()
    End Sub

    Shared Sub DumpThreadID(ByVal name As String)
        System.Diagnostics.Debug.WriteLine(name & " thread id= " & System.AppDomain.GetCurrentThreadId().ToString())
    End Sub

    Shared Sub DummyThreadStart()
        DumpThreadID("Dummy Thread")
        AddHandler Application.ThreadExit, New EventHandler(AddressOf App_ThreadExit)
    End Sub

    Shared Sub Main()
        AddHandler Application.ThreadException, New System.Threading.ThreadExceptionEventHandler(AddressOf App_ThreadingException)
        AddHandler Application.Idle, New EventHandler(AddressOf App_Idle)
        AddHandler Application.ThreadExit, New EventHandler(AddressOf App_ThreadExit)
        AddHandler Application.ApplicationExit, New EventHandler(AddressOf App_Exit)

        DumpThreadID("UI Thread")
        Dim dummythread As System.Threading.Thread = New System.Threading.Thread(New System.Threading.ThreadStart(AddressOf DummyThreadStart))
        dummythread.Start()

        Application.Run(New Form1())

    End Sub

    Shared Sub App_ThreadExit(ByVal sender As Object, ByVal e As EventArgs)
        System.Diagnostics.Debug.WriteLine("App_ThreadExit on thread id= " & System.AppDomain.GetCurrentThreadId().ToString())
    End Sub

    Private Sub button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgsHandles button1.Click
        Application.Exit()
    End Sub
    Private Sub button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgsHandles button2.Click
        Application.ExitThread()
    End Sub
    Private Sub button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgsHandles button3.Click
        Throw New System.IO.FileLoadException()
    End Sub

End Class

   
    
  














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8.Application.Run
9.Application.StartupPath
10.Application.ThreadException
11.Application.ThreadExit
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