如何在记事本中制作类似MenuStrip风格的MenuStrip？(VB.NET)

Public Class Form1
    Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
        ' 设置默认显示的内容
        ShowContent("Home")
    End Sub

    Private Sub MenuStrip1_ItemClicked(sender As Object, e As ToolStripItemClickedEventArgs) Handles MenuStrip1.ItemClicked
        ' 根据用户选择的菜单项，显示相应的内容
        Dim menuItem As ToolStripMenuItem = TryCast(e.ClickedItem, ToolStripMenuItem)
        If menuItem IsNot Nothing Then
            ShowContent(menuItem.Text)
        End If
    End Sub

    Private Sub ShowContent(menuItemText As String)
        ' 清空Panel控件中的内容
        Panel1.Controls.Clear()

        ' 根据菜单项的文本，显示相应的内容
        Select Case menuItemText
            Case "Home"
                ' 在Panel控件中添加一个Label控件
                Dim label As New Label()
                label.Text = "Welcome to Home!"
                label.Dock = DockStyle.Fill
                Panel1.Controls.Add(label)

            Case "About"
                ' 在Panel控件中添加一个TextBox控件
                Dim textBox As New TextBox()
                textBox.Text = "This is the About page."
                textBox.Multiline = True
                textBox.Dock = DockStyle.Fill
                Panel1.Controls.Add(textBox)

            Case "Contact"
                ' 在Panel控件中添加一个WebBrowser控件
                Dim webBrowser As New WebBrowser()
                webBrowser.Navigate("https://www.example.com/contact")
                webBrowser.Dock = DockStyle.Fill
                Panel1.Controls.Add(webBrowser)

            Case Else
                ' 其他菜单项的处理逻辑
        End Select
    End Sub
End Class