VB.Net/GUI/SDI

Open File Menu List for SDI Frame

Imports System
Imports System.Runtime.InteropServices
Imports System.Drawing
Imports System.ruponentModel
Imports System.Windows.Forms
Imports System.IO
Public Class MainClass
    
    Shared Sub Main(ByVal args As String())
        Dim myform As Form = New Form1()
        Application.Run(myform)
    End Sub
End Class

Public Class OpenFileList
    Private m_ApplicationName As String
    Private m_FileMenu As ToolStripMenuItem
    Private m_NumEntries As Integer
    Private m_FileNames As Collection
    Private m_MenuItems As Collection
    Public Event OpenFile(ByVal file_name As String)
    Public Sub New(ByVal application_name As String, ByVal file_menu As ToolStripMenuItem, ByVal num_entries As Integer)
        m_ApplicationName = application_name
        m_FileMenu = file_menu
        m_NumEntries = num_entries
        m_FileNames = New Collection
        m_MenuItems = New Collection
        LoadOpenFileList()
        DisplayOpenFileList()
    End Sub
    Private Sub LoadOpenFileList()
        Dim file_name As String
        For i As Integer = 1 To m_NumEntries
            file_name = GetSetting(m_ApplicationName,"OpenFileList", "FileName" & i, "")
            If file_name.Length > 0 Then
                m_FileNames.Add(file_name, file_name)
            End If
        Next i
    End Sub
    Private Sub SaveOpenFileList()
        " Remove previous entries.
        If GetSetting(m_ApplicationName, "OpenFileList","FileName1", "").Length > 0 Then
            DeleteSetting(m_ApplicationName, "OpenFileList")
        End If
        For i As Integer = 1 To m_FileNames.Count
            SaveSetting(m_ApplicationName,"OpenFileList", "FileName" & i, _
                m_FileNames(i).ToString)
        Next i
    End Sub
    Private Sub DisplayOpenFileList()
        For Each mnu As ToolStripItem In m_MenuItems
            m_FileMenu.DropDownItems.Remove(mnu)
        Next mnu
        m_MenuItems = New Collection
        If m_FileNames.Count > 0 Then
            Dim sep As New ToolStripSeparator()
            m_MenuItems.Add(sep)
            m_FileMenu.DropDownItems.Add(sep)
            Dim mnu As ToolStripMenuItem
            For i As Integer = 1 To m_FileNames.Count
                mnu = New ToolStripMenuItem()
                mnu.Text = "&" & i & " " & _
                    New FileInfo(m_FileNames(i).ToString).Name
                AddHandler mnu.Click, AddressOf MruItem_Click
                m_MenuItems.Add(mnu)
                m_FileMenu.DropDownItems.Add(mnu)
            Next i
        End If
    End Sub
    Private Sub MruItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)
        Dim mnu As ToolStripMenuItem
        mnu = DirectCast(sender, ToolStripMenuItem)
        For i As Integer = 1 To m_FileNames.Count
            If m_MenuItems(i + 1) Is mnu Then
                RaiseEvent OpenFile(m_FileNames(i).ToString)
                Exit For
            End If
        Next i
    End Sub
    Public Sub Add(ByVal file_name As String)
        Dim i As Integer = FileNameIndex(file_name)
        If i > 0 Then m_FileNames.Remove(i)
        If m_FileNames.Count > 0 Then
            m_FileNames.Add(file_name, file_name, m_FileNames.Item(1))
        Else
            m_FileNames.Add(file_name, file_name)
        End If
        If m_FileNames.Count > m_NumEntries Then
            m_FileNames.Remove(m_NumEntries + 1)
        End If
        DisplayOpenFileList()
        SaveOpenFileList()
    End Sub
    Private Function FileNameIndex(ByVal file_name As String) As Integer
        For i As Integer = 1 To m_FileNames.Count
            If m_FileNames(i).ToString = file_name Then Return i
        Next i
        Return 0
    End Function
    Public Sub Remove(ByVal file_name As String)
        Dim i As Integer = FileNameIndex(file_name)
        If i > 0 Then
            m_FileNames.Remove(i)
            DisplayOpenFileList()
            SaveOpenFileList()
        End If
    End Sub
End Class
Public Class Form1
    Private WithEvents m_OpenFileList As OpenFileList
    Private Sub Form1_Load(ByVal sender As Object, _
     ByVal e As System.EventArgs) Handles Me.Load
        m_OpenFileList = New OpenFileList("OpenFileList", mnuFile, 4)
    End Sub
    Private Sub mnuFileOpen_Click(ByVal sender As System.Object, _
     ByVal e As System.EventArgs) Handles mnuFileOpen.Click
        If dlgOpen.ShowDialog() = Windows.Forms.DialogResult.OK Then
            OpenFile(dlgOpen.FileName)
        End If
    End Sub
    Private Sub m_OpenFileList_OpenFile(ByVal file_name As String) _
     Handles m_OpenFileList.OpenFile
        OpenFile(file_name)
    End Sub
    Private Sub OpenFile(ByVal file_name As String)
        txtContents.Text = File.ReadAllText(file_name)
        txtContents.Select(0, 0)
        m_OpenFileList.Add(file_name)
        Me.Text = "# [" & New FileInfo(file_name).Name & "]"
    End Sub
End Class

<Global.Microsoft.VisualBasic.rupilerServices.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.ruponentModel.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.MenuStrip1 = New System.Windows.Forms.MenuStrip
        Me.mnuFile = New System.Windows.Forms.ToolStripMenuItem
        Me.mnuFileOpen = New System.Windows.Forms.ToolStripMenuItem
        Me.txtContents = New System.Windows.Forms.TextBox
        Me.dlgOpen = New System.Windows.Forms.OpenFileDialog
        Me.MenuStrip1.SuspendLayout()
        Me.SuspendLayout()
        "
        "MenuStrip1
        "
        Me.MenuStrip1.Items.AddRange(New System.Windows.Forms.ToolStripItem() {Me.mnuFile})
        Me.MenuStrip1.Location = New System.Drawing.Point(0, 0)
        Me.MenuStrip1.Name = "MenuStrip1"
        Me.MenuStrip1.Size = New System.Drawing.Size(292, 24)
        Me.MenuStrip1.TabIndex = 9
        Me.MenuStrip1.Text = "MenuStrip1"
        "
        "mnuFile
        "
        Me.mnuFile.DropDownItems.AddRange(New System.Windows.Forms.ToolStripItem() {Me.mnuFileOpen})
        Me.mnuFile.Name = "mnuFile"
        Me.mnuFile.Size = New System.Drawing.Size(44, 20)
        Me.mnuFile.Text = "&File"
        "
        "mnuFileOpen
        "
        Me.mnuFileOpen.Name = "mnuFileOpen"
        Me.mnuFileOpen.ShortcutKeys = CType((System.Windows.Forms.Keys.Control Or System.Windows.Forms.Keys.O), System.Windows.Forms.Keys)
        Me.mnuFileOpen.Size = New System.Drawing.Size(168, 22)
        Me.mnuFileOpen.Text = "&Open"
        "
        "txtContents
        "
        Me.txtContents.Anchor = CType((((System.Windows.Forms.AnchorStyles.Top Or System.Windows.Forms.AnchorStyles.Bottom) _
                    Or System.Windows.Forms.AnchorStyles.Left) _
                    Or System.Windows.Forms.AnchorStyles.Right), System.Windows.Forms.AnchorStyles)
        Me.txtContents.Location = New System.Drawing.Point(0, 24)
        Me.txtContents.Multiline = True
        Me.txtContents.Name = "txtContents"
        Me.txtContents.Size = New System.Drawing.Size(292, 249)
        Me.txtContents.TabIndex = 8
        "
        "Form1
        "
        Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
        Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
        Me.ClientSize = New System.Drawing.Size(292, 273)
        Me.Controls.Add(Me.txtContents)
        Me.Controls.Add(Me.MenuStrip1)
        Me.Name = "Form1"
        Me.Text = "SdiEditMRU []"
        Me.MenuStrip1.ResumeLayout(False)
        Me.MenuStrip1.PerformLayout()
        Me.ResumeLayout(False)
        Me.PerformLayout()
    End Sub
    Friend WithEvents MenuStrip1 As System.Windows.Forms.MenuStrip
    Friend WithEvents mnuFile As System.Windows.Forms.ToolStripMenuItem
    Friend WithEvents mnuFileOpen As System.Windows.Forms.ToolStripMenuItem
    Friend WithEvents txtContents As System.Windows.Forms.TextBox
    Friend WithEvents dlgOpen As System.Windows.Forms.OpenFileDialog
End Class

Single Document Interface (SDI) Demo

Imports System
Imports System.Runtime.InteropServices
Imports System.Drawing
Imports System.ruponentModel
Imports System.Windows.Forms
Imports System.IO
Public Class MainClass
    
    Shared Sub Main(ByVal args As String())
        Dim myform As Form = New Form1()
        Application.Run(myform)
    End Sub
End Class

Public Class Form1
    Private m_FileLoaded As Boolean = False
    Private Sub mnuOpen_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles mnuOpen.Click
        If dlgOpen.ShowDialog() = Windows.Forms.DialogResult.OK Then
            Dim frm As Form1
            If m_FileLoaded Then
                frm = New Form1
            Else
                frm = Me
            End If
            frm.txtContents.Text = File.ReadAllText(dlgOpen.FileName)
            frm.Text = "# [" & New FileInfo(dlgOpen.FileName).Name & "]"
            frm.m_FileLoaded = True
            frm.Show()
        End If
    End Sub
End Class

<Global.Microsoft.VisualBasic.rupilerServices.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.ruponentModel.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.MenuStrip1 = New System.Windows.Forms.MenuStrip
        Me.FileToolStripMenuItem = New System.Windows.Forms.ToolStripMenuItem
        Me.mnuOpen = New System.Windows.Forms.ToolStripMenuItem
        Me.dlgOpen = New System.Windows.Forms.OpenFileDialog
        Me.txtContents = New System.Windows.Forms.TextBox
        Me.MenuStrip1.SuspendLayout()
        Me.SuspendLayout()
        "
        "MenuStrip1
        "
        Me.MenuStrip1.Items.AddRange(New System.Windows.Forms.ToolStripItem() {Me.FileToolStripMenuItem})
        Me.MenuStrip1.Location = New System.Drawing.Point(0, 0)
        Me.MenuStrip1.Name = "MenuStrip1"
        Me.MenuStrip1.Size = New System.Drawing.Size(292, 24)
        Me.MenuStrip1.TabIndex = 9
        Me.MenuStrip1.Text = "MenuStrip1"
        "
        "FileToolStripMenuItem
        "
        Me.FileToolStripMenuItem.DropDownItems.AddRange(New System.Windows.Forms.ToolStripItem() {Me.mnuOpen})
        Me.FileToolStripMenuItem.Name = "FileToolStripMenuItem"
        Me.FileToolStripMenuItem.Size = New System.Drawing.Size(44, 20)
        Me.FileToolStripMenuItem.Text = "&File"
        "
        "mnuOpen
        "
        Me.mnuOpen.Name = "mnuOpen"
        Me.mnuOpen.ShortcutKeys = CType((System.Windows.Forms.Keys.Control Or System.Windows.Forms.Keys.O), System.Windows.Forms.Keys)
        Me.mnuOpen.Size = New System.Drawing.Size(168, 22)
        Me.mnuOpen.Text = "&Open"
        "
        "txtContents
        "
        Me.txtContents.Anchor = CType((((System.Windows.Forms.AnchorStyles.Top Or System.Windows.Forms.AnchorStyles.Bottom) _
                    Or System.Windows.Forms.AnchorStyles.Left) _
                    Or System.Windows.Forms.AnchorStyles.Right), System.Windows.Forms.AnchorStyles)
        Me.txtContents.Location = New System.Drawing.Point(0, 24)
        Me.txtContents.Multiline = True
        Me.txtContents.Name = "txtContents"
        Me.txtContents.Size = New System.Drawing.Size(292, 249)
        Me.txtContents.TabIndex = 8
        "
        "Form1
        "
        Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
        Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
        Me.ClientSize = New System.Drawing.Size(292, 273)
        Me.Controls.Add(Me.txtContents)
        Me.Controls.Add(Me.MenuStrip1)
        Me.Name = "Form1"
        Me.Text = "SdiEdit []"
        Me.MenuStrip1.ResumeLayout(False)
        Me.MenuStrip1.PerformLayout()
        Me.ResumeLayout(False)
        Me.PerformLayout()
    End Sub
    Friend WithEvents MenuStrip1 As System.Windows.Forms.MenuStrip
    Friend WithEvents FileToolStripMenuItem As System.Windows.Forms.ToolStripMenuItem
    Friend WithEvents mnuOpen As System.Windows.Forms.ToolStripMenuItem
    Friend WithEvents dlgOpen As System.Windows.Forms.OpenFileDialog
    Friend WithEvents txtContents As System.Windows.Forms.TextBox
End Class