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VB.Net Tutorial » GUI Applications » Editor 
15.7.2.MDI Editor
'Visual Basic 2005 Programmer's Reference
'by Rod Stephens (Author

'# Publisher: Wrox (October 212005)
'# Language: English
'# ISBN-100764571982
'# ISBN-13978-0764571985

Imports System.IO
Imports System.Windows.Forms

public class MDIParentEditor2
   public Shared Sub Main
        Application.Run(New MDIParent1)
   End Sub
End class



Public Class MDIParent1
    Private Sub ShowNewForm(ByVal sender As Object, ByVal e As EventArgsHandles NewToolStripMenuItem.Click, NewToolStripButton.Click, NewWindowToolStripMenuItem.Click
        Dim frm As New Form1
        frm.MdiParent = Me
        frm.Show()
    End Sub

    Private Sub OpenFile(ByVal sender As Object, ByVal e As EventArgsHandles OpenToolStripMenuItem.Click, OpenToolStripButton.Click
        Dim dlgOpen As New OpenFileDialog
        If dlgOpen.ShowDialog(Me= Windows.Forms.DialogResult.OK Then
            Dim frm As New Form1
            frm.txtContents.Text = File.ReadAllText(dlgOpen.FileName)
            frm.txtContents.Select(00)
            frm.Text = New FileInfo(dlgOpen.FileName).Name
            frm.MdiParent = Me
            frm.Show()
        End If
    End Sub

    Private Sub SaveAsToolStripMenuItem_Click(ByVal sender As Object, ByVal e As EventArgsHandles SaveAsToolStripMenuItem.Click
        Dim SaveFileDialog As New SaveFileDialog
        SaveFileDialog.InitialDirectory = My.Computer.FileSystem.SpecialDirectories.MyDocuments
        SaveFileDialog.Filter = "Text Files (*.txt)|*.txt"
        SaveFileDialog.ShowDialog(Me)

        Dim FileName As String = SaveFileDialog.FileName
        Console.WriteLine("save to "+ FileName)
    End Sub

    Private Sub ExitToolsStripMenuItem_Click(ByVal sender As Object, ByVal e As EventArgsHandles ExitToolStripMenuItem.Click
        Me.Close()
    End Sub

    Private Sub ToolBarToolStripMenuItem_Click(ByVal sender As Object, ByVal e As EventArgsHandles ToolBarToolStripMenuItem.Click
        Me.ToolStrip.Visible = Me.ToolBarToolStripMenuItem.Checked
    End Sub

    Private Sub StatusBarToolStripMenuItem_Click(ByVal sender As Object, ByVal e As EventArgsHandles StatusBarToolStripMenuItem.Click
        Me.StatusStrip.Visible = Me.StatusBarToolStripMenuItem.Checked
    End Sub

    Private Sub CascadeToolStripMenuItem_Click(ByVal sender As Object, ByVal e As EventArgsHandles CascadeToolStripMenuItem.Click
        Me.LayoutMdi(MdiLayout.Cascade)
    End Sub

    Private Sub TileVerticleToolStripMenuItem_Click(ByVal sender As Object, ByVal e As EventArgsHandles TileVerticalToolStripMenuItem.Click
        Me.LayoutMdi(MdiLayout.TileVertical)
    End Sub

    Private Sub TileHorizontalToolStripMenuItem_Click(ByVal sender As Object, ByVal e As EventArgsHandles TileHorizontalToolStripMenuItem.Click
        Me.LayoutMdi(MdiLayout.TileHorizontal)
    End Sub

    Private Sub ArrangeIconsToolStripMenuItem_Click(ByVal sender As Object, ByVal e As EventArgsHandles ArrangeIconsToolStripMenuItem.Click
        Me.LayoutMdi(MdiLayout.ArrangeIcons)
    End Sub

    Private Sub MinimizeAllToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgsHandles MinimizeAllToolStripMenuItem.Click
        For Each frm As Form In Me.MdiChildren
            frm.WindowState = FormWindowState.Minimized
        Next frm
    End Sub

    Private Sub RestoreAllToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgsHandles RestoreAllToolStripMenuItem.Click
        For Each frm As Form In Me.MdiChildren
            frm.WindowState = FormWindowState.Normal
        Next frm
    End Sub

    Private Sub MaximizeAllToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgsHandles MaximizeAllToolStripMenuItem.Click
        For Each frm As Form In Me.MdiChildren
            frm.WindowState = FormWindowState.Maximized
        Next frm
    End Sub

    Private Sub CloseAllToolStripMenuItem_Click(ByVal sender As Object, ByVal e As EventArgsHandles CloseAllToolStripMenuItem.Click
        For Each frm As Form In Me.MdiChildren
            frm.Close()
        Next
    End Sub
End Class
<Global.Microsoft.VisualBasic.CompilerServices.DesignerGenerated()> _
Partial Public Class MDIParent1
    Inherits System.Windows.Forms.Form

    'Form overrides dispose to clean up the component list.
    <System.Diagnostics.DebuggerNonUserCode()> _
    Protected Overrides Sub Dispose(ByVal disposing As Boolean)
        If disposing AndAlso components IsNot Nothing Then
            components.Dispose()
        End If
        MyBase.Dispose(disposing)
    End Sub


    'Required by the Windows Form Designer
    Private components As System.ComponentModel.IContainer

    'NOTE: The following procedure is required by the Windows Form Designer
    'It can be modified using the Windows Form Designer.  
    'Do not modify it using the code editor.
    <System.Diagnostics.DebuggerStepThrough()> _
    Private Sub InitializeComponent()
        Me.components = New System.ComponentModel.Container
        Me.ContentsToolStripMenuItem = New System.Windows.Forms.ToolStripMenuItem
        Me.HelpMenu = New System.Windows.Forms.ToolStripMenuItem
        Me.IndexToolStripMenuItem = New System.Windows.Forms.ToolStripMenuItem
        Me.SearchToolStripMenuItem = New System.Windows.Forms.ToolStripMenuItem
        Me.ToolStripSeparator8 = New System.Windows.Forms.ToolStripSeparator
        Me.AboutToolStripMenuItem = New System.Windows.Forms.ToolStripMenuItem
        Me.ArrangeIconsToolStripMenuItem = New System.Windows.Forms.ToolStripMenuItem
        Me.CloseAllToolStripMenuItem = New System.Windows.Forms.ToolStripMenuItem
        Me.NewWindowToolStripMenuItem = New System.Windows.Forms.ToolStripMenuItem
        Me.WindowsMenu = New System.Windows.Forms.ToolStripMenuItem
        Me.CascadeToolStripMenuItem = New System.Windows.Forms.ToolStripMenuItem
        Me.TileVerticalToolStripMenuItem = New System.Windows.Forms.ToolStripMenuItem
        Me.TileHorizontalToolStripMenuItem = New System.Windows.Forms.ToolStripMenuItem
        Me.OptionsToolStripMenuItem = New System.Windows.Forms.ToolStripMenuItem
        Me.HelpToolStripButton = New System.Windows.Forms.ToolStripButton
        Me.ToolStripSeparator2 = New System.Windows.Forms.ToolStripSeparator
        Me.PrintPreviewToolStripButton = New System.Windows.Forms.ToolStripButton
        Me.ToolTip = New System.Windows.Forms.ToolTip(Me.components)
        Me.ToolStripStatusLabel = New System.Windows.Forms.ToolStripStatusLabel
        Me.StatusStrip = New System.Windows.Forms.StatusStrip
        Me.PrintToolStripButton = New System.Windows.Forms.ToolStripButton
        Me.NewToolStripButton = New System.Windows.Forms.ToolStripButton
        Me.ToolStrip = New System.Windows.Forms.ToolStrip
        Me.OpenToolStripButton = New System.Windows.Forms.ToolStripButton
        Me.SaveToolStripButton = New System.Windows.Forms.ToolStripButton
        Me.ToolStripSeparator1 = New System.Windows.Forms.ToolStripSeparator
        Me.PrintPreviewToolStripMenuItem = New System.Windows.Forms.ToolStripMenuItem
        Me.PrintToolStripMenuItem = New System.Windows.Forms.ToolStripMenuItem
        Me.ToolStripSeparator4 = New System.Windows.Forms.ToolStripSeparator
        Me.ExitToolStripMenuItem = New System.Windows.Forms.ToolStripMenuItem
        Me.ToolStripSeparator5 = New System.Windows.Forms.ToolStripSeparator
        Me.PrintSetupToolStripMenuItem = New System.Windows.Forms.ToolStripMenuItem
        Me.SaveAsToolStripMenuItem = New System.Windows.Forms.ToolStripMenuItem
        Me.NewToolStripMenuItem = New System.Windows.Forms.ToolStripMenuItem
        Me.FileMenu = New System.Windows.Forms.ToolStripMenuItem
        Me.OpenToolStripMenuItem = New System.Windows.Forms.ToolStripMenuItem
        Me.ToolStripSeparator3 = New System.Windows.Forms.ToolStripSeparator
        Me.SaveToolStripMenuItem = New System.Windows.Forms.ToolStripMenuItem
        Me.MenuStrip = New System.Windows.Forms.MenuStrip
        Me.EditMenu = New System.Windows.Forms.ToolStripMenuItem
        Me.UndoToolStripMenuItem = New System.Windows.Forms.ToolStripMenuItem
        Me.RedoToolStripMenuItem = New System.Windows.Forms.ToolStripMenuItem
        Me.ToolStripSeparator6 = New System.Windows.Forms.ToolStripSeparator
        Me.CutToolStripMenuItem = New System.Windows.Forms.ToolStripMenuItem
        Me.CopyToolStripMenuItem = New System.Windows.Forms.ToolStripMenuItem
        Me.PasteToolStripMenuItem = New System.Windows.Forms.ToolStripMenuItem
        Me.ToolStripSeparator7 = New System.Windows.Forms.ToolStripSeparator
        Me.SelectAllToolStripMenuItem = New System.Windows.Forms.ToolStripMenuItem
        Me.ViewMenu = New System.Windows.Forms.ToolStripMenuItem
        Me.ToolBarToolStripMenuItem = New System.Windows.Forms.ToolStripMenuItem
        Me.StatusBarToolStripMenuItem = New System.Windows.Forms.ToolStripMenuItem
        Me.ToolsMenu = New System.Windows.Forms.ToolStripMenuItem
        Me.MaximizeAllToolStripMenuItem = New System.Windows.Forms.ToolStripMenuItem
        Me.MinimizeAllToolStripMenuItem = New System.Windows.Forms.ToolStripMenuItem
        Me.RestoreAllToolStripMenuItem = New System.Windows.Forms.ToolStripMenuItem
        Me.StatusStrip.SuspendLayout()
        Me.ToolStrip.SuspendLayout()
        Me.MenuStrip.SuspendLayout()
        Me.SuspendLayout()
        '
        'ContentsToolStripMenuItem
        '
        Me.ContentsToolStripMenuItem.Name = "ContentsToolStripMenuItem"
        Me.ContentsToolStripMenuItem.ShortcutKeys = CType((System.Windows.Forms.Keys.Control Or System.Windows.Forms.Keys.F1), System.Windows.Forms.Keys)
        Me.ContentsToolStripMenuItem.Size = New System.Drawing.Size(19422)
        Me.ContentsToolStripMenuItem.Text = "&Contents"
        '
        'HelpMenu
        '
        Me.HelpMenu.DropDownItems.AddRange(New System.Windows.Forms.ToolStripItem() {Me.ContentsToolStripMenuItem, Me.IndexToolStripMenuItem, Me.SearchToolStripMenuItem, Me.ToolStripSeparator8, Me.AboutToolStripMenuItem})
        Me.HelpMenu.Name = "HelpMenu"
        Me.HelpMenu.Size = New System.Drawing.Size(4920)
        Me.HelpMenu.Text = "&Help"
        '
        'IndexToolStripMenuItem
        '
        Me.IndexToolStripMenuItem.ImageTransparentColor = System.Drawing.Color.Black
        Me.IndexToolStripMenuItem.Name = "IndexToolStripMenuItem"
        Me.IndexToolStripMenuItem.Size = New System.Drawing.Size(19422)
        Me.IndexToolStripMenuItem.Text = "&Index"
        '
        'SearchToolStripMenuItem
        '
        Me.SearchToolStripMenuItem.ImageTransparentColor = System.Drawing.Color.Black
        Me.SearchToolStripMenuItem.Name = "SearchToolStripMenuItem"
        Me.SearchToolStripMenuItem.Size = New System.Drawing.Size(19422)
        Me.SearchToolStripMenuItem.Text = "&Search"
        '
        'ToolStripSeparator8
        '
        Me.ToolStripSeparator8.Name = "ToolStripSeparator8"
        Me.ToolStripSeparator8.Size = New System.Drawing.Size(1916)
        '
        'AboutToolStripMenuItem
        '
        Me.AboutToolStripMenuItem.Name = "AboutToolStripMenuItem"
        Me.AboutToolStripMenuItem.Size = New System.Drawing.Size(19422)
        Me.AboutToolStripMenuItem.Text = "&About ..."
        '
        'ArrangeIconsToolStripMenuItem
        '
        Me.ArrangeIconsToolStripMenuItem.Name = "ArrangeIconsToolStripMenuItem"
        Me.ArrangeIconsToolStripMenuItem.Size = New System.Drawing.Size(17922)
        Me.ArrangeIconsToolStripMenuItem.Text = "&Arrange Icons"
        '
        'CloseAllToolStripMenuItem
        '
        Me.CloseAllToolStripMenuItem.Name = "CloseAllToolStripMenuItem"
        Me.CloseAllToolStripMenuItem.Size = New System.Drawing.Size(17922)
        Me.CloseAllToolStripMenuItem.Text = "C&lose All"
        '
        'NewWindowToolStripMenuItem
        '
        Me.NewWindowToolStripMenuItem.Name = "NewWindowToolStripMenuItem"
        Me.NewWindowToolStripMenuItem.Size = New System.Drawing.Size(17922)
        Me.NewWindowToolStripMenuItem.Text = "&New Window"
        '
        'WindowsMenu
        '
        Me.WindowsMenu.DropDownItems.AddRange(New System.Windows.Forms.ToolStripItem() {Me.NewWindowToolStripMenuItem, Me.CascadeToolStripMenuItem, Me.TileVerticalToolStripMenuItem, Me.TileHorizontalToolStripMenuItem, Me.MinimizeAllToolStripMenuItem, Me.MaximizeAllToolStripMenuItem, Me.RestoreAllToolStripMenuItem, Me.CloseAllToolStripMenuItem, Me.ArrangeIconsToolStripMenuItem})
        Me.WindowsMenu.Name = "WindowsMenu"
        Me.WindowsMenu.Size = New System.Drawing.Size(7820)
        Me.WindowsMenu.Text = "&Windows"
        '
        'CascadeToolStripMenuItem
        '
        Me.CascadeToolStripMenuItem.Name = "CascadeToolStripMenuItem"
        Me.CascadeToolStripMenuItem.Size = New System.Drawing.Size(17922)
        Me.CascadeToolStripMenuItem.Text = "&Cascade"
        '
        'TileVerticalToolStripMenuItem
        '
        Me.TileVerticalToolStripMenuItem.Name = "TileVerticalToolStripMenuItem"
        Me.TileVerticalToolStripMenuItem.Size = New System.Drawing.Size(17922)
        Me.TileVerticalToolStripMenuItem.Text = "Tile &Vertical"
        '
        'TileHorizontalToolStripMenuItem
        '
        Me.TileHorizontalToolStripMenuItem.Name = "TileHorizontalToolStripMenuItem"
        Me.TileHorizontalToolStripMenuItem.Size = New System.Drawing.Size(17922)
        Me.TileHorizontalToolStripMenuItem.Text = "Tile &Horizontal"
        '
        'OptionsToolStripMenuItem
        '
        Me.OptionsToolStripMenuItem.Name = "OptionsToolStripMenuItem"
        Me.OptionsToolStripMenuItem.Size = New System.Drawing.Size(15222)
        Me.OptionsToolStripMenuItem.Text = "&Options"
        '
        'HelpToolStripButton
        '
        Me.HelpToolStripButton.DisplayStyle = System.Windows.Forms.ToolStripItemDisplayStyle.Image
        Me.HelpToolStripButton.ImageTransparentColor = System.Drawing.Color.Black
        Me.HelpToolStripButton.Name = "HelpToolStripButton"
        Me.HelpToolStripButton.Size = New System.Drawing.Size(2322)
        Me.HelpToolStripButton.Text = "Help"
        '
        'ToolStripSeparator2
        '
        Me.ToolStripSeparator2.Name = "ToolStripSeparator2"
        Me.ToolStripSeparator2.Size = New System.Drawing.Size(625)
        '
        'PrintPreviewToolStripButton
        '
        Me.PrintPreviewToolStripButton.DisplayStyle = System.Windows.Forms.ToolStripItemDisplayStyle.Image
        Me.PrintPreviewToolStripButton.ImageTransparentColor = System.Drawing.Color.Black
        Me.PrintPreviewToolStripButton.Name = "PrintPreviewToolStripButton"
        Me.PrintPreviewToolStripButton.Size = New System.Drawing.Size(2322)
        Me.PrintPreviewToolStripButton.Text = "Print Preview"
        '
        'ToolStripStatusLabel
        '
        Me.ToolStripStatusLabel.Name = "ToolStripStatusLabel"
        Me.ToolStripStatusLabel.Size = New System.Drawing.Size(4717)
        Me.ToolStripStatusLabel.Text = "Status"
        '
        'StatusStrip
        '
        Me.StatusStrip.Items.AddRange(New System.Windows.Forms.ToolStripItem() {Me.ToolStripStatusLabel})
        Me.StatusStrip.Location = New System.Drawing.Point(0431)
        Me.StatusStrip.Name = "StatusStrip"
        Me.StatusStrip.Size = New System.Drawing.Size(63222)
        Me.StatusStrip.TabIndex = 7
        Me.StatusStrip.Text = "StatusStrip"
        '
        'PrintToolStripButton
        '
        Me.PrintToolStripButton.DisplayStyle = System.Windows.Forms.ToolStripItemDisplayStyle.Image
        Me.PrintToolStripButton.ImageTransparentColor = System.Drawing.Color.Black
        Me.PrintToolStripButton.Name = "PrintToolStripButton"
        Me.PrintToolStripButton.Size = New System.Drawing.Size(2322)
        Me.PrintToolStripButton.Text = "Print"
        '
        'NewToolStripButton
        '
        Me.NewToolStripButton.DisplayStyle = System.Windows.Forms.ToolStripItemDisplayStyle.Image
        Me.NewToolStripButton.ImageTransparentColor = System.Drawing.Color.Black
        Me.NewToolStripButton.Name = "NewToolStripButton"
        Me.NewToolStripButton.Size = New System.Drawing.Size(2322)
        Me.NewToolStripButton.Text = "New"
        '
        'ToolStrip
        '
        Me.ToolStrip.Items.AddRange(New System.Windows.Forms.ToolStripItem() {Me.NewToolStripButton, Me.OpenToolStripButton, Me.SaveToolStripButton, Me.ToolStripSeparator1, Me.PrintToolStripButton, Me.PrintPreviewToolStripButton, Me.ToolStripSeparator2, Me.HelpToolStripButton})
        Me.ToolStrip.Location = New System.Drawing.Point(024)
        Me.ToolStrip.Name = "ToolStrip"
        Me.ToolStrip.Size = New System.Drawing.Size(63225)
        Me.ToolStrip.TabIndex = 6
        Me.ToolStrip.Text = "ToolStrip"
        '
        'OpenToolStripButton
        '
        Me.OpenToolStripButton.DisplayStyle = System.Windows.Forms.ToolStripItemDisplayStyle.Image
        Me.OpenToolStripButton.ImageTransparentColor = System.Drawing.Color.Black
        Me.OpenToolStripButton.Name = "OpenToolStripButton"
        Me.OpenToolStripButton.Size = New System.Drawing.Size(2322)
        Me.OpenToolStripButton.Text = "Open"
        '
        'SaveToolStripButton
        '
        Me.SaveToolStripButton.DisplayStyle = System.Windows.Forms.ToolStripItemDisplayStyle.Image
        Me.SaveToolStripButton.ImageTransparentColor = System.Drawing.Color.Black
        Me.SaveToolStripButton.Name = "SaveToolStripButton"
        Me.SaveToolStripButton.Size = New System.Drawing.Size(2322)
        Me.SaveToolStripButton.Text = "Save"
        '
        'ToolStripSeparator1
        '
        Me.ToolStripSeparator1.Name = "ToolStripSeparator1"
        Me.ToolStripSeparator1.Size = New System.Drawing.Size(625)
        '
        'PrintPreviewToolStripMenuItem
        '
        Me.PrintPreviewToolStripMenuItem.ImageTransparentColor = System.Drawing.Color.Black
        Me.PrintPreviewToolStripMenuItem.Name = "PrintPreviewToolStripMenuItem"
        Me.PrintPreviewToolStripMenuItem.Size = New System.Drawing.Size(17222)
        Me.PrintPreviewToolStripMenuItem.Text = "Print Pre&view"
        '
        'PrintToolStripMenuItem
        '
        Me.PrintToolStripMenuItem.ImageTransparentColor = System.Drawing.Color.Black
        Me.PrintToolStripMenuItem.Name = "PrintToolStripMenuItem"
        Me.PrintToolStripMenuItem.ShortcutKeys = CType((System.Windows.Forms.Keys.Control Or System.Windows.Forms.Keys.P), System.Windows.Forms.Keys)
        Me.PrintToolStripMenuItem.Size = New System.Drawing.Size(17222)
        Me.PrintToolStripMenuItem.Text = "&Print"
        '
        'ToolStripSeparator4
        '
        Me.ToolStripSeparator4.Name = "ToolStripSeparator4"
        Me.ToolStripSeparator4.Size = New System.Drawing.Size(1696)
        '
        'ExitToolStripMenuItem
        '
        Me.ExitToolStripMenuItem.Name = "ExitToolStripMenuItem"
        Me.ExitToolStripMenuItem.Size = New System.Drawing.Size(17222)
        Me.ExitToolStripMenuItem.Text = "E&xit"
        '
        'ToolStripSeparator5
        '
        Me.ToolStripSeparator5.Name = "ToolStripSeparator5"
        Me.ToolStripSeparator5.Size = New System.Drawing.Size(1696)
        '
        'PrintSetupToolStripMenuItem
        '
        Me.PrintSetupToolStripMenuItem.Name = "PrintSetupToolStripMenuItem"
        Me.PrintSetupToolStripMenuItem.Size = New System.Drawing.Size(17222)
        Me.PrintSetupToolStripMenuItem.Text = "Print Setup"
        '
        'SaveAsToolStripMenuItem
        '
        Me.SaveAsToolStripMenuItem.Name = "SaveAsToolStripMenuItem"
        Me.SaveAsToolStripMenuItem.Size = New System.Drawing.Size(17222)
        Me.SaveAsToolStripMenuItem.Text = "Save &As"
        '
        'NewToolStripMenuItem
        '
        Me.NewToolStripMenuItem.ImageTransparentColor = System.Drawing.Color.Black
        Me.NewToolStripMenuItem.Name = "NewToolStripMenuItem"
        Me.NewToolStripMenuItem.ShortcutKeys = CType((System.Windows.Forms.Keys.Control Or System.Windows.Forms.Keys.N), System.Windows.Forms.Keys)
        Me.NewToolStripMenuItem.Size = New System.Drawing.Size(17222)
        Me.NewToolStripMenuItem.Text = "&New"
        '
        'FileMenu
        '
        Me.FileMenu.DropDownItems.AddRange(New System.Windows.Forms.ToolStripItem() {Me.NewToolStripMenuItem, Me.OpenToolStripMenuItem, Me.ToolStripSeparator3, Me.SaveToolStripMenuItem, Me.SaveAsToolStripMenuItem, Me.ToolStripSeparator4, Me.PrintToolStripMenuItem, Me.PrintPreviewToolStripMenuItem, Me.PrintSetupToolStripMenuItem, Me.ToolStripSeparator5, Me.ExitToolStripMenuItem})
        Me.FileMenu.ImageTransparentColor = System.Drawing.SystemColors.ActiveBorder
        Me.FileMenu.Name = "FileMenu"
        Me.FileMenu.Size = New System.Drawing.Size(4420)
        Me.FileMenu.Text = "&File"
        '
        'OpenToolStripMenuItem
        '
        Me.OpenToolStripMenuItem.ImageTransparentColor = System.Drawing.Color.Black
        Me.OpenToolStripMenuItem.Name = "OpenToolStripMenuItem"
        Me.OpenToolStripMenuItem.ShortcutKeys = CType((System.Windows.Forms.Keys.Control Or System.Windows.Forms.Keys.O), System.Windows.Forms.Keys)
        Me.OpenToolStripMenuItem.Size = New System.Drawing.Size(17222)
        Me.OpenToolStripMenuItem.Text = "&Open"
        '
        'ToolStripSeparator3
        '
        Me.ToolStripSeparator3.Name = "ToolStripSeparator3"
        Me.ToolStripSeparator3.Size = New System.Drawing.Size(1696)
        '
        'SaveToolStripMenuItem
        '
        Me.SaveToolStripMenuItem.ImageTransparentColor = System.Drawing.Color.Black
        Me.SaveToolStripMenuItem.Name = "SaveToolStripMenuItem"
        Me.SaveToolStripMenuItem.ShortcutKeys = CType((System.Windows.Forms.Keys.Control Or System.Windows.Forms.Keys.S), System.Windows.Forms.Keys)
        Me.SaveToolStripMenuItem.Size = New System.Drawing.Size(17222)
        Me.SaveToolStripMenuItem.Text = "&Save"
        '
        'MenuStrip
        '
        Me.MenuStrip.Items.AddRange(New System.Windows.Forms.ToolStripItem() {Me.FileMenu, Me.EditMenu, Me.ViewMenu, Me.ToolsMenu, Me.WindowsMenu, Me.HelpMenu})
        Me.MenuStrip.Location = New System.Drawing.Point(00)
        Me.MenuStrip.MdiWindowListItem = Me.WindowsMenu
        Me.MenuStrip.Name = "MenuStrip"
        Me.MenuStrip.Size = New System.Drawing.Size(63224)
        Me.MenuStrip.TabIndex = 5
        Me.MenuStrip.Text = "MenuStrip"
        '
        'EditMenu
        '
        Me.EditMenu.DropDownItems.AddRange(New System.Windows.Forms.ToolStripItem() {Me.UndoToolStripMenuItem, Me.RedoToolStripMenuItem, Me.ToolStripSeparator6, Me.CutToolStripMenuItem, Me.CopyToolStripMenuItem, Me.PasteToolStripMenuItem, Me.ToolStripSeparator7, Me.SelectAllToolStripMenuItem})
        Me.EditMenu.Name = "EditMenu"
        Me.EditMenu.Size = New System.Drawing.Size(4420)
        Me.EditMenu.Text = "&Edit"
        '
        'UndoToolStripMenuItem
        '
        Me.UndoToolStripMenuItem.ImageTransparentColor = System.Drawing.Color.Black
        Me.UndoToolStripMenuItem.Name = "UndoToolStripMenuItem"
        Me.UndoToolStripMenuItem.ShortcutKeys = CType((System.Windows.Forms.Keys.Control Or System.Windows.Forms.Keys.Z), System.Windows.Forms.Keys)
        Me.UndoToolStripMenuItem.Size = New System.Drawing.Size(19422)
        Me.UndoToolStripMenuItem.Text = "&Undo"
        '
        'RedoToolStripMenuItem
        '
        Me.RedoToolStripMenuItem.ImageTransparentColor = System.Drawing.Color.Black
        Me.RedoToolStripMenuItem.Name = "RedoToolStripMenuItem"
        Me.RedoToolStripMenuItem.ShortcutKeys = CType((System.Windows.Forms.Keys.Control Or System.Windows.Forms.Keys.Y), System.Windows.Forms.Keys)
        Me.RedoToolStripMenuItem.Size = New System.Drawing.Size(19422)
        Me.RedoToolStripMenuItem.Text = "&Redo"
        '
        'ToolStripSeparator6
        '
        Me.ToolStripSeparator6.Name = "ToolStripSeparator6"
        Me.ToolStripSeparator6.Size = New System.Drawing.Size(1916)
        '
        'CutToolStripMenuItem
        '
        Me.CutToolStripMenuItem.ImageTransparentColor = System.Drawing.Color.Black
        Me.CutToolStripMenuItem.Name = "CutToolStripMenuItem"
        Me.CutToolStripMenuItem.ShortcutKeys = CType((System.Windows.Forms.Keys.Control Or System.Windows.Forms.Keys.X), System.Windows.Forms.Keys)
        Me.CutToolStripMenuItem.Size = New System.Drawing.Size(19422)
        Me.CutToolStripMenuItem.Text = "Cu&t"
        '
        'CopyToolStripMenuItem
        '
        Me.CopyToolStripMenuItem.ImageTransparentColor = System.Drawing.Color.Black
        Me.CopyToolStripMenuItem.Name = "CopyToolStripMenuItem"
        Me.CopyToolStripMenuItem.ShortcutKeys = CType((System.Windows.Forms.Keys.Control Or System.Windows.Forms.Keys.C), System.Windows.Forms.Keys)
        Me.CopyToolStripMenuItem.Size = New System.Drawing.Size(19422)
        Me.CopyToolStripMenuItem.Text = "&Copy"
        '
        'PasteToolStripMenuItem
        '
        Me.PasteToolStripMenuItem.ImageTransparentColor = System.Drawing.Color.Black
        Me.PasteToolStripMenuItem.Name = "PasteToolStripMenuItem"
        Me.PasteToolStripMenuItem.ShortcutKeys = CType((System.Windows.Forms.Keys.Control Or System.Windows.Forms.Keys.V), System.Windows.Forms.Keys)
        Me.PasteToolStripMenuItem.Size = New System.Drawing.Size(19422)
        Me.PasteToolStripMenuItem.Text = "&Paste"
        '
        'ToolStripSeparator7
        '
        Me.ToolStripSeparator7.Name = "ToolStripSeparator7"
        Me.ToolStripSeparator7.Size = New System.Drawing.Size(1916)
        '
        'SelectAllToolStripMenuItem
        '
        Me.SelectAllToolStripMenuItem.Name = "SelectAllToolStripMenuItem"
        Me.SelectAllToolStripMenuItem.ShortcutKeys = CType((System.Windows.Forms.Keys.Control Or System.Windows.Forms.Keys.A), System.Windows.Forms.Keys)
        Me.SelectAllToolStripMenuItem.Size = New System.Drawing.Size(19422)
        Me.SelectAllToolStripMenuItem.Text = "Select &All"
        '
        'ViewMenu
        '
        Me.ViewMenu.DropDownItems.AddRange(New System.Windows.Forms.ToolStripItem() {Me.ToolBarToolStripMenuItem, Me.StatusBarToolStripMenuItem})
        Me.ViewMenu.Name = "ViewMenu"
        Me.ViewMenu.Size = New System.Drawing.Size(5220)
        Me.ViewMenu.Text = "&View"
        '
        'ToolBarToolStripMenuItem
        '
        Me.ToolBarToolStripMenuItem.Checked = True
        Me.ToolBarToolStripMenuItem.CheckOnClick = True
        Me.ToolBarToolStripMenuItem.CheckState = System.Windows.Forms.CheckState.Checked
        Me.ToolBarToolStripMenuItem.Name = "ToolBarToolStripMenuItem"
        Me.ToolBarToolStripMenuItem.Size = New System.Drawing.Size(15222)
        Me.ToolBarToolStripMenuItem.Text = "&Toolbar"
        '
        'StatusBarToolStripMenuItem
        '
        Me.StatusBarToolStripMenuItem.Checked = True
        Me.StatusBarToolStripMenuItem.CheckOnClick = True
        Me.StatusBarToolStripMenuItem.CheckState = System.Windows.Forms.CheckState.Checked
        Me.StatusBarToolStripMenuItem.Name = "StatusBarToolStripMenuItem"
        Me.StatusBarToolStripMenuItem.Size = New System.Drawing.Size(15222)
        Me.StatusBarToolStripMenuItem.Text = "&Status Bar"
        '
        'ToolsMenu
        '
        Me.ToolsMenu.DropDownItems.AddRange(New System.Windows.Forms.ToolStripItem() {Me.OptionsToolStripMenuItem})
        Me.ToolsMenu.Name = "ToolsMenu"
        Me.ToolsMenu.Size = New System.Drawing.Size(5420)
        Me.ToolsMenu.Text = "&Tools"
        '
        'MaximizeAllToolStripMenuItem
        '
        Me.MaximizeAllToolStripMenuItem.Name = "MaximizeAllToolStripMenuItem"
        Me.MaximizeAllToolStripMenuItem.Size = New System.Drawing.Size(17922)
        Me.MaximizeAllToolStripMenuItem.Text = "Ma&ximize All"
        '
        'MinimizeAllToolStripMenuItem
        '
        Me.MinimizeAllToolStripMenuItem.Name = "MinimizeAllToolStripMenuItem"
        Me.MinimizeAllToolStripMenuItem.Size = New System.Drawing.Size(17922)
        Me.MinimizeAllToolStripMenuItem.Text = "&Minimize All"
        '
        'RestoreAllToolStripMenuItem
        '
        Me.RestoreAllToolStripMenuItem.Name = "RestoreAllToolStripMenuItem"
        Me.RestoreAllToolStripMenuItem.Size = New System.Drawing.Size(17922)
        Me.RestoreAllToolStripMenuItem.Text = "&Restore All"
        '
        'MDIParent1
        '
        Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
        Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
        Me.ClientSize = New System.Drawing.Size(632453)
        Me.Controls.Add(Me.ToolStrip)
        Me.Controls.Add(Me.MenuStrip)
        Me.Controls.Add(Me.StatusStrip)
        Me.IsMdiContainer = True
        Me.MainMenuStrip = Me.MenuStrip
        Me.Name = "MDIParent1"
        Me.Text = "MDIParent1"
        Me.StatusStrip.ResumeLayout(False)
        Me.StatusStrip.PerformLayout()
        Me.ToolStrip.ResumeLayout(False)
        Me.ToolStrip.PerformLayout()
        Me.MenuStrip.ResumeLayout(False)
        Me.MenuStrip.PerformLayout()
        Me.ResumeLayout(False)
        Me.PerformLayout()

    End Sub
    Friend WithEvents ContentsToolStripMenuItem As System.Windows.Forms.ToolStripMenuItem
    Friend WithEvents HelpMenu As System.Windows.Forms.ToolStripMenuItem
    Friend WithEvents IndexToolStripMenuItem As System.Windows.Forms.ToolStripMenuItem
    Friend WithEvents SearchToolStripMenuItem As System.Windows.Forms.ToolStripMenuItem
    Friend WithEvents ToolStripSeparator8 As System.Windows.Forms.ToolStripSeparator
    Friend WithEvents AboutToolStripMenuItem As System.Windows.Forms.ToolStripMenuItem
    Friend WithEvents ArrangeIconsToolStripMenuItem As System.Windows.Forms.ToolStripMenuItem
    Friend WithEvents CloseAllToolStripMenuItem As System.Windows.Forms.ToolStripMenuItem
    Friend WithEvents NewWindowToolStripMenuItem As System.Windows.Forms.ToolStripMenuItem
    Friend WithEvents WindowsMenu As System.Windows.Forms.ToolStripMenuItem
    Friend WithEvents CascadeToolStripMenuItem As System.Windows.Forms.ToolStripMenuItem
    Friend WithEvents TileVerticalToolStripMenuItem As System.Windows.Forms.ToolStripMenuItem
    Friend WithEvents TileHorizontalToolStripMenuItem As System.Windows.Forms.ToolStripMenuItem
    Friend WithEvents OptionsToolStripMenuItem As System.Windows.Forms.ToolStripMenuItem
    Friend WithEvents HelpToolStripButton As System.Windows.Forms.ToolStripButton
    Friend WithEvents ToolStripSeparator2 As System.Windows.Forms.ToolStripSeparator
    Friend WithEvents PrintPreviewToolStripButton As System.Windows.Forms.ToolStripButton
    Friend WithEvents ToolTip As System.Windows.Forms.ToolTip
    Friend WithEvents ToolStripStatusLabel As System.Windows.Forms.ToolStripStatusLabel
    Friend WithEvents StatusStrip As System.Windows.Forms.StatusStrip
    Friend WithEvents PrintToolStripButton As System.Windows.Forms.ToolStripButton
    Friend WithEvents NewToolStripButton As System.Windows.Forms.ToolStripButton
    Friend WithEvents ToolStrip As System.Windows.Forms.ToolStrip
    Friend WithEvents OpenToolStripButton As System.Windows.Forms.ToolStripButton
    Friend WithEvents SaveToolStripButton As System.Windows.Forms.ToolStripButton
    Friend WithEvents ToolStripSeparator1 As System.Windows.Forms.ToolStripSeparator
    Friend WithEvents PrintPreviewToolStripMenuItem As System.Windows.Forms.ToolStripMenuItem
    Friend WithEvents PrintToolStripMenuItem As System.Windows.Forms.ToolStripMenuItem
    Friend WithEvents ToolStripSeparator4 As System.Windows.Forms.ToolStripSeparator
    Friend WithEvents ExitToolStripMenuItem As System.Windows.Forms.ToolStripMenuItem
    Friend WithEvents ToolStripSeparator5 As System.Windows.Forms.ToolStripSeparator
    Friend WithEvents PrintSetupToolStripMenuItem As System.Windows.Forms.ToolStripMenuItem
    Friend WithEvents SaveAsToolStripMenuItem As System.Windows.Forms.ToolStripMenuItem
    Friend WithEvents NewToolStripMenuItem As System.Windows.Forms.ToolStripMenuItem
    Friend WithEvents FileMenu As System.Windows.Forms.ToolStripMenuItem
    Friend WithEvents OpenToolStripMenuItem As System.Windows.Forms.ToolStripMenuItem
    Friend WithEvents ToolStripSeparator3 As System.Windows.Forms.ToolStripSeparator
    Friend WithEvents SaveToolStripMenuItem As System.Windows.Forms.ToolStripMenuItem
    Friend WithEvents MenuStrip As System.Windows.Forms.MenuStrip
    Friend WithEvents EditMenu As System.Windows.Forms.ToolStripMenuItem
    Friend WithEvents UndoToolStripMenuItem As System.Windows.Forms.ToolStripMenuItem
    Friend WithEvents RedoToolStripMenuItem As System.Windows.Forms.ToolStripMenuItem
    Friend WithEvents ToolStripSeparator6 As System.Windows.Forms.ToolStripSeparator
    Friend WithEvents CutToolStripMenuItem As System.Windows.Forms.ToolStripMenuItem
    Friend WithEvents CopyToolStripMenuItem As System.Windows.Forms.ToolStripMenuItem
    Friend WithEvents PasteToolStripMenuItem As System.Windows.Forms.ToolStripMenuItem
    Friend WithEvents ToolStripSeparator7 As System.Windows.Forms.ToolStripSeparator
    Friend WithEvents SelectAllToolStripMenuItem As System.Windows.Forms.ToolStripMenuItem
    Friend WithEvents ViewMenu As System.Windows.Forms.ToolStripMenuItem
    Friend WithEvents ToolBarToolStripMenuItem As System.Windows.Forms.ToolStripMenuItem
    Friend WithEvents StatusBarToolStripMenuItem As System.Windows.Forms.ToolStripMenuItem
    Friend WithEvents ToolsMenu As System.Windows.Forms.ToolStripMenuItem
    Friend WithEvents MinimizeAllToolStripMenuItem As System.Windows.Forms.ToolStripMenuItem
    Friend WithEvents MaximizeAllToolStripMenuItem As System.Windows.Forms.ToolStripMenuItem
    Friend WithEvents RestoreAllToolStripMenuItem As System.Windows.Forms.ToolStripMenuItem

End Class

Public Class Form1
    Private m_FileName As String
    Private m_IsDirty As Boolean

    ' Load a file and set the form's MdiParent.
    Public Sub LoadFile(ByVal file_name As String, ByVal mdi_parent As MDIParent1)
        ' Save the file name and MdiParent.
        m_FileName = file_name
        Me.MdiParent = mdi_parent

        ' Load the file.
        txtContents.Text = File.ReadAllText(m_FileName)
        txtContents.Select(00)

        ' Display the file name.
        Me.Text = New FileInfo(m_FileName).Name

        ' The data has not been modified since it was loaded.
        m_IsDirty = False
    End Sub

    ' Close the form.
    Private Sub mnuFileClose_Click(ByVal sender As System.Object, ByVal e As System.EventArgsHandles mnuFileClose.Click
        Me.Close()
    End Sub

    ' See if it's safe to close the form.
    Private Sub mdiChild_FormClosing(ByVal sender As Object, ByVal e As System.Windows.Forms.FormClosingEventArgsHandles Me.FormClosing
        If m_IsDirty Then
            ' There are unsaved changes.
            ' Ask the user if we should save them.
            Select Case MessageBox.Show_
                    "The data has changed. Save the changes?", _
                    "Save Changes?", _
                    MessageBoxButtons.YesNoCancel, _
                    MessageBoxIcon.Question)
                Case Windows.Forms.DialogResult.Yes
                    ' Save the changes.
                    SaveFile()

                    ' See if we succeeded.
                    e.Cancel = m_IsDirty
                Case Windows.Forms.DialogResult.No
                    ' Discard the changes.
                    ' Leave e.Cancel = False.
                Case Windows.Forms.DialogResult.Cancel
                    ' Cancel the close.
                    e.Cancel = True
            End Select
        End If
    End Sub

    ' Save the file.
    Private Sub SaveFile()
        File.WriteAllText(m_FileName, txtContents.Text)
        m_IsDirty = False
        Me.Text = New FileInfo(m_FileName).Name
    End Sub

    ' Mark the data as modified.
    Private Sub txtContents_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgsHandles txtContents.TextChanged
        m_IsDirty = True
        If Not Me.Text.EndsWith("*"Then
            Me.Text = New FileInfo(m_FileName).Name & "*"
        End If
    End Sub

    ' Save the changes.
    Private Sub mnuFileSave_Click(ByVal sender As System.Object, ByVal e As System.EventArgsHandles mnuFileSave.Click
        SaveFile()
    End Sub
End Class
<Global.Microsoft.VisualBasic.CompilerServices.DesignerGenerated()> _
Partial Public Class Form1
    Inherits System.Windows.Forms.Form

    'Form overrides dispose to clean up the component list.
    <System.Diagnostics.DebuggerNonUserCode()> _
    Protected Overrides Sub Dispose(ByVal disposing As Boolean)
        If disposing AndAlso components IsNot Nothing Then
            components.Dispose()
        End If
        MyBase.Dispose(disposing)
    End Sub

    'Required by the Windows Form Designer
    Private components As System.ComponentModel.IContainer

    'NOTE: The following procedure is required by the Windows Form Designer
    'It can be modified using the Windows Form Designer.  
    'Do not modify it using the code editor.
    <System.Diagnostics.DebuggerStepThrough()> _
    Private Sub InitializeComponent()
        Me.txtContents = New System.Windows.Forms.TextBox
        Me.MenuStrip1 = New System.Windows.Forms.MenuStrip
        Me.mnuFile = New System.Windows.Forms.ToolStripMenuItem
        Me.mnuFileSave = New System.Windows.Forms.ToolStripMenuItem
        Me.mnuFileClose = New System.Windows.Forms.ToolStripMenuItem
        Me.MenuStrip1.SuspendLayout()
        Me.SuspendLayout()
        '
        'txtContents
        '
        Me.txtContents.Dock = System.Windows.Forms.DockStyle.Fill
        Me.txtContents.Location = New System.Drawing.Point(024)
        Me.txtContents.Multiline = True
        Me.txtContents.Name = "txtContents"
        Me.txtContents.Size = New System.Drawing.Size(292249)
        Me.txtContents.TabIndex = 7
        '
        'MenuStrip1
        '
        Me.MenuStrip1.Items.AddRange(New System.Windows.Forms.ToolStripItem() {Me.mnuFile})
        Me.MenuStrip1.Location = New System.Drawing.Point(00)
        Me.MenuStrip1.Name = "MenuStrip1"
        Me.MenuStrip1.Size = New System.Drawing.Size(29224)
        Me.MenuStrip1.TabIndex = 8
        Me.MenuStrip1.Text = "MenuStrip1"
        '
        'mnuFile
        '
        Me.mnuFile.DropDownItems.AddRange(New System.Windows.Forms.ToolStripItem() {Me.mnuFileSave, Me.mnuFileClose})
        Me.mnuFile.Name = "mnuFile"
        Me.mnuFile.Size = New System.Drawing.Size(4420)
        Me.mnuFile.Text = "&File"
        '
        'mnuFileSave
        '
        Me.mnuFileSave.Name = "mnuFileSave"
        Me.mnuFileSave.ShortcutKeys = CType((System.Windows.Forms.Keys.Control Or System.Windows.Forms.Keys.S), System.Windows.Forms.Keys)
        Me.mnuFileSave.Size = New System.Drawing.Size(16522)
        Me.mnuFileSave.Text = "&Save"
        '
        'mnuFileClose
        '
        Me.mnuFileClose.Name = "mnuFileClose"
        Me.mnuFileClose.Size = New System.Drawing.Size(16522)
        Me.mnuFileClose.Text = "&Close"
        '
        'Form1
        '
        Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
        Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
        Me.ClientSize = New System.Drawing.Size(292273)
        Me.Controls.Add(Me.txtContents)
        Me.Controls.Add(Me.MenuStrip1)
        Me.Name = "Form1"
        Me.Text = "MdiEdit []"
        Me.MenuStrip1.ResumeLayout(False)
        Me.MenuStrip1.PerformLayout()
        Me.ResumeLayout(False)
        Me.PerformLayout()

    End Sub
    Friend WithEvents txtContents As System.Windows.Forms.TextBox
    Friend WithEvents MenuStrip1 As System.Windows.Forms.MenuStrip
    Friend WithEvents mnuFile As System.Windows.Forms.ToolStripMenuItem
    Friend WithEvents mnuFileSave As System.Windows.Forms.ToolStripMenuItem
    Friend WithEvents mnuFileClose As System.Windows.Forms.ToolStripMenuItem

End Class
15.7.Editor
15.7.1.MDI based on editorMDI based on editor
15.7.2.MDI Editor
15.7.3.Note padNote pad
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