VB.NET Form.Menu屬性代碼示例

Public Sub CreateMyMainMenu()
    ' Create an empty MainMenu.
    Dim mainMenu1 As New MainMenu()
       
    Dim menuItem1 As New MenuItem()
    Dim menuItem2 As New MenuItem()
       
    menuItem1.Text = "File"
    menuItem2.Text = "Edit"
    ' Add two MenuItem objects to the MainMenu.
    mainMenu1.MenuItems.Add(menuItem1)
    mainMenu1.MenuItems.Add(menuItem2)
       
    ' Bind the MainMenu to Form1.
    Menu = mainMenu1
End Sub

' 導入命名空間
Imports System
Imports System.Drawing
Imports System.Reflection
Imports System.Windows.Forms
Imports System.IO


public class MainClass

   Shared Sub Main()
      Dim form1 As Form = New Form1
      Application.Run(form1)
   End Sub

End Class






Public Class Form1
    Inherits System.Windows.Forms.Form

#Region " Windows Form Designer generated code "

    Public Sub New()
        MyBase.New()

        'This call is required by the Windows Form Designer.
        InitializeComponent()

        'Add any initialization after the InitializeComponent() call

    End Sub

    'Form overrides dispose to clean up the component list.
    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

    '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.
    Friend WithEvents Button1 As System.Windows.Forms.Button
    Friend WithEvents TextBox1 As System.Windows.Forms.TextBox
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.Button1 = New System.Windows.Forms.Button()
        Me.TextBox1 = New System.Windows.Forms.TextBox()
        Me.SuspendLayout()
        '
        'Button1
        '
        Me.Button1.Font = New System.Drawing.Font("Verdana", 11.25!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
        Me.Button1.Location = New System.Drawing.Point(4, 198)
        Me.Button1.Name = "Button1"
        Me.Button1.Size = New System.Drawing.Size(269, 37)
        Me.Button1.TabIndex = 0
        Me.Button1.Text = "Show Menu Structure"
        '
        'TextBox1
        '
        Me.TextBox1.Font = New System.Drawing.Font("Verdana", 9.0!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
        Me.TextBox1.Location = New System.Drawing.Point(4, 6)
        Me.TextBox1.Multiline = True
        Me.TextBox1.Name = "TextBox1"
        Me.TextBox1.ScrollBars = System.Windows.Forms.ScrollBars.Vertical
        Me.TextBox1.Size = New System.Drawing.Size(272, 186)
        Me.TextBox1.TabIndex = 1
        Me.TextBox1.Text = ""
        '
        'Form1
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
        Me.ClientSize = New System.Drawing.Size(280, 257)
        Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.TextBox1, Me.Button1})
        Me.Name = "Form1"
        Me.Text = "Menu Demo"
        Me.ResumeLayout(False)

    End Sub

#End Region

    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Dim menu As New MainMenu()
        Dim item As MenuItem
        item = New MenuItem("File")
        item.MenuItems.Add("New", New System.EventHandler(AddressOf Me.MenuClick))
        item.MenuItems.Add("Open", New System.EventHandler(AddressOf Me.MenuClick))
        item.MenuItems.Add("Exit")

        ' Add the top-level menu item to the MainMenu component 
        ' and set the MainMenu component to be the form's menu.
        menu.MenuItems.Add(item)

        item = New MenuItem("Edit")
        item.MenuItems.Add("Copy", New System.EventHandler(AddressOf Me.MenuClick))
        item.MenuItems.Add("Cut", New System.EventHandler(AddressOf Me.MenuClick))
        item.MenuItems.Add("Paste", New System.EventHandler(AddressOf Me.MenuClick))
        menu.MenuItems.Add(item)

        item = New MenuItem("Format")
        item.MenuItems.Add("Font")
        item.MenuItems(0).MenuItems.Add("Verdana", New System.EventHandler(AddressOf Me.MenuClick))
        item.MenuItems(0).MenuItems.Add("Tahoma", New System.EventHandler(AddressOf Me.MenuClick))
        item.MenuItems(0).MenuItems.Add("Georgia", New System.EventHandler(AddressOf Me.MenuClick))

        item.MenuItems.Add("Color", New System.EventHandler(AddressOf Me.MenuClick))
        item.MenuItems.Add("Style", New System.EventHandler(AddressOf Me.MenuClick))
        menu.MenuItems.Add(item)

        Me.Menu = menu

        Dim cMenu As New ContextMenu()
        cMenu.MenuItems.Add("Copy", New System.EventHandler(AddressOf Me.MenuClick))
        cMenu.MenuItems.Add("Cut", New System.EventHandler(AddressOf Me.MenuClick))
        cMenu.MenuItems.Add("Paste", New System.EventHandler(AddressOf Me.MenuClick))

        Me.TextBox1.ContextMenu = cMenu

    End Sub

    Sub MenuClick(ByVal sender As Object, ByVal e As System.EventArgs)
        MsgBox("You selected the command " & sender.text & " of the File menu")
    End Sub

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim mItem As MenuItem
        TextBox1.Clear()
        For Each mItem In Me.Menu.MenuItems
            TextBox1.AppendText(mItem.Text & vbCrLf)
            ScanSubItems(mItem)
        Next
    End Sub

    Sub ScanSubItems(ByVal menuItem As MenuItem)
        Dim item As MenuItem
        Static identation As Integer
        identation += 1
        For Each item In menuItem.MenuItems
            TextBox1.AppendText(StrDup(identation, vbTab) & item.Text & vbCrLf)
            If item.IsParent Then ScanSubItems(item)
        Next
        identation -= 1
    End Sub

End Class