mdidemo.vb

VB.net的MDI 多文档窗口 以及文件打开savedialog

Imports System.IO

Public Class MDIDemo
    Inherits System.Windows.Forms.Form

#Region " Windows 窗体设计器生成的代码 "

    Public Sub New()
        MyBase.New()

        '该调用是 Windows 窗体设计器所必需的。
        InitializeComponent()

        '在 InitializeComponent() 调用之后添加任何初始化

    End Sub

    '窗体重写处置以清理组件列表。
    Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
        If disposing Then
            If Not (components Is Nothing) Then
                components.Dispose()
            End If
        End If
        MyBase.Dispose(disposing)
    End Sub

    'Windows 窗体设计器所必需的
    Private components As System.ComponentModel.IContainer

    '注意：以下过程是 Windows 窗体设计器所必需的
    '可以使用 Windows 窗体设计器修改此过程。
    '不要使用代码编辑器修改它。
    Friend WithEvents MnuFile As System.Windows.Forms.MenuItem
    Friend WithEvents MnuWindows As System.Windows.Forms.MenuItem
    Friend WithEvents MnuOpen As System.Windows.Forms.MenuItem
    Friend WithEvents MnuExit As System.Windows.Forms.MenuItem
    Friend WithEvents OpenFileDialog As System.Windows.Forms.OpenFileDialog
    Friend WithEvents MnuWinH As System.Windows.Forms.MenuItem
    Friend WithEvents MnuWinV As System.Windows.Forms.MenuItem
    Friend WithEvents MnuWinC As System.Windows.Forms.MenuItem
    Friend WithEvents MainMenu As System.Windows.Forms.MainMenu
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.MainMenu = New System.Windows.Forms.MainMenu()
        Me.MnuFile = New System.Windows.Forms.MenuItem()
        Me.MnuOpen = New System.Windows.Forms.MenuItem()
        Me.MnuExit = New System.Windows.Forms.MenuItem()
        Me.MnuWindows = New System.Windows.Forms.MenuItem()
        Me.MnuWinH = New System.Windows.Forms.MenuItem()
        Me.MnuWinV = New System.Windows.Forms.MenuItem()
        Me.MnuWinC = New System.Windows.Forms.MenuItem()
        Me.OpenFileDialog = New System.Windows.Forms.OpenFileDialog()
        '
        'MainMenu
        '
        Me.MainMenu.MenuItems.AddRange(New System.Windows.Forms.MenuItem() {Me.MnuFile, Me.MnuWindows})
        '
        'MnuFile
        '
        Me.MnuFile.Index = 0
        Me.MnuFile.MenuItems.AddRange(New System.Windows.Forms.MenuItem() {Me.MnuOpen, Me.MnuExit})
        Me.MnuFile.Text = "文件"
        '
        'MnuOpen
        '
        Me.MnuOpen.Index = 0
        Me.MnuOpen.Text = "打开"
        '
        'MnuExit
        '
        Me.MnuExit.Index = 1
        Me.MnuExit.Text = "退出"
        '
        'MnuWindows
        '
        Me.MnuWindows.Index = 1
        Me.MnuWindows.MdiList = True
        Me.MnuWindows.MenuItems.AddRange(New System.Windows.Forms.MenuItem() {Me.MnuWinH, Me.MnuWinV, Me.MnuWinC})
        Me.MnuWindows.Text = "窗口"
        '
        'MnuWinH
        '
        Me.MnuWinH.Index = 0
        Me.MnuWinH.Text = "水平平铺"
        '
        'MnuWinV
        '
        Me.MnuWinV.Index = 1
        Me.MnuWinV.Text = "垂直平铺"
        '
        'MnuWinC
        '
        Me.MnuWinC.Index = 2
        Me.MnuWinC.Text = "层叠"
        '
        'OpenFileDialog
        '
        '
        'MDIDemo
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(6, 14)
        Me.ClientSize = New System.Drawing.Size(552, 294)
        Me.IsMdiContainer = True
        Me.Menu = Me.MainMenu
        Me.Name = "MDIDemo"
        Me.Text = "MDIDemo"

    End Sub

#End Region

    Private Sub MnuOpen_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MnuOpen.Click
        OpenFileDialog.ShowDialog()

    End Sub

    Private Sub OpenFileDialog_FileOk(ByVal sender As Object, ByVal e As System.ComponentModel.CancelEventArgs) Handles OpenFileDialog.FileOk
        Dim frmChild As New Child()
        frmChild.MdiParent = Me
        frmChild.PictureBox.Image = Image.FromFile(OpenFileDialog.FileName)
        frmChild.Show()
    End Sub

    Private Sub MnuExit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MnuExit.Click
        Me.Close()
    End Sub

    Private Sub MnuWinH_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MnuWinH.Click
        Me.LayoutMdi(MdiLayout.TileHorizontal)
    End Sub

    Private Sub MnuWinV_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles MnuWinV.Click
        Me.LayoutMdi(MdiLayout.TileVertical)
    End Sub

    Private Sub MnuWinC_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles MnuWinC.Click
        Me.LayoutMdi(MdiLayout.Cascade)
    End Sub
End Class