TextBox based Editor : Text Editor « Application « VB.Net

1. VB.Net
2. Application
3. Text Editor

TextBox based Editor

Imports System
Imports System.Data
Imports System.Collections
Imports System.Windows.Forms

Public Class MainClass
    Shared Sub Main()
        Dim form1 As Form = New TextEditor()
        Application.Run(form1)
    End Sub
End Class

Public Class TextEditor
    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 statusBar As System.Windows.Forms.StatusBar
    Friend WithEvents toolbar As System.Windows.Forms.ToolBar
    Friend WithEvents toolbarClear As System.Windows.Forms.ToolBarButton
    Friend WithEvents toolbarRed As System.Windows.Forms.ToolBarButton
    Friend WithEvents toolbarBlue As System.Windows.Forms.ToolBarButton
    Friend WithEvents toolbarUppercase As System.Windows.Forms.ToolBarButton
    Friend WithEvents toolbarLowercase As System.Windows.Forms.ToolBarButton
    Friend WithEvents toolbarHelpAbout As System.Windows.Forms.ToolBarButton
    Friend WithEvents imglstToolbar As System.Windows.Forms.ImageList
    Friend WithEvents txtEdit As System.Windows.Forms.TextBox
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.components = New System.ComponentModel.Container()
       ' Dim resources As System.Resources.ResourceManager = New System.Resources.ResourceManager(GetType(TextEditor))
        Me.statusBar = New System.Windows.Forms.StatusBar()
        Me.toolbar = New System.Windows.Forms.ToolBar()
        Me.toolbarClear = New System.Windows.Forms.ToolBarButton()
        Me.toolbarRed = New System.Windows.Forms.ToolBarButton()
        Me.toolbarBlue = New System.Windows.Forms.ToolBarButton()
        Me.toolbarUppercase = New System.Windows.Forms.ToolBarButton()
        Me.toolbarLowercase = New System.Windows.Forms.ToolBarButton()
        Me.toolbarHelpAbout = New System.Windows.Forms.ToolBarButton()
        Me.imglstToolbar = New System.Windows.Forms.ImageList(Me.components)
        Me.txtEdit = New System.Windows.Forms.TextBox()
        Me.SuspendLayout()
        '
        'statusBar
        '
        Me.statusBar.Location = New System.Drawing.Point(0, 397)
        Me.statusBar.Name = "statusBar"
        Me.statusBar.Size = New System.Drawing.Size(584, 16)
        Me.statusBar.TabIndex = 2
        '
        'toolbar
        '
        Me.toolbar.Buttons.AddRange(New System.Windows.Forms.ToolBarButton() {Me.toolbarClear, Me.toolbarRed, Me.toolbarBlue, Me.toolbarUppercase, Me.toolbarLowercase, Me.toolbarHelpAbout})
        Me.toolbar.DropDownArrows = True
        Me.toolbar.ImageList = Me.imglstToolbar
        Me.toolbar.Name = "toolbar"
        Me.toolbar.ShowToolTips = True
        Me.toolbar.Size = New System.Drawing.Size(584, 39)
        Me.toolbar.TabIndex = 1
        '
        'toolbarClear
        '
        Me.toolbarClear.ImageIndex = 4
        Me.toolbarClear.Text = "Clear"
        Me.toolbarClear.ToolTipText = "Clear the text box"
        '
        'toolbarRed
        '
        Me.toolbarRed.ImageIndex = 2
        Me.toolbarRed.Text = "Red"
        Me.toolbarRed.ToolTipText = "Make the text red"
        '
        'toolbarBlue
        '
        Me.toolbarBlue.ImageIndex = 3
        Me.toolbarBlue.Text = "Blue"
        Me.toolbarBlue.ToolTipText = "Make the text blue"
        '
        'toolbarUppercase
        '
        Me.toolbarUppercase.ImageIndex = 0
        Me.toolbarUppercase.Text = "Uppercase"
        Me.toolbarUppercase.ToolTipText = "Make the text uppercase"
        '
        'toolbarLowercase
        '
        Me.toolbarLowercase.ImageIndex = 1
        Me.toolbarLowercase.Text = "Lowercase"
        Me.toolbarLowercase.ToolTipText = "Make the toolbar lowercase"
        '
        'toolbarHelpAbout
        '
        Me.toolbarHelpAbout.ImageIndex = 5
        Me.toolbarHelpAbout.Text = "About"
        Me.toolbarHelpAbout.ToolTipText = "Display the About box"
        '
        'imglstToolbar
        '
        Me.imglstToolbar.ColorDepth = System.Windows.Forms.ColorDepth.Depth8Bit
        Me.imglstToolbar.ImageSize = New System.Drawing.Size(16, 16)
'        Me.imglstToolbar.ImageStream = CType(resources.GetObject("imglstToolbar.ImageStream"), System.Windows.Forms.ImageListStreamer)
        Me.imglstToolbar.TransparentColor = System.Drawing.Color.Transparent
        '
        'txtEdit
        '
        Me.txtEdit.Anchor = (((System.Windows.Forms.AnchorStyles.Top Or System.Windows.Forms.AnchorStyles.Bottom) _
                    Or System.Windows.Forms.AnchorStyles.Left) _
                    Or System.Windows.Forms.AnchorStyles.Right)
        Me.txtEdit.Location = New System.Drawing.Point(8, 48)
        Me.txtEdit.Multiline = True
        Me.txtEdit.Name = "txtEdit"
        Me.txtEdit.ScrollBars = System.Windows.Forms.ScrollBars.Vertical
        Me.txtEdit.Size = New System.Drawing.Size(568, 340)
        Me.txtEdit.TabIndex = 1
        Me.txtEdit.Text = ""
        '
        'TextEditor
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
        Me.ClientSize = New System.Drawing.Size(584, 413)
        Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.txtEdit, Me.toolbar, Me.statusBar})
        Me.Name = "TextEditor"
        Me.Text = "Form1"
        Me.ResumeLayout(False)

    End Sub

#End Region

    ' StatusText - set the text on the status bar...
    Public Property StatusText() As String
        Get
            Return statusBar.Text
        End Get
        Set(ByVal Value As String)
            statusBar.Text = Value
        End Set
    End Property


    ' EditText - gets or sets the text that we're editing...
    Public Property EditText() As String
        Get
            Return txtEdit.Text
        End Get
        Set(ByVal Value As String)
            txtEdit.Text = Value
            ' clear the selection...
            'txtEdit.Select(0, 0)
        End Set
    End Property


    ' ClearEditBox ?empties txtEdit...
    Public Sub ClearEditBox()
        ' reset the EditText property...
        EditText = ""

        ' reset the font color
        txtEdit.ForeColor = System.Drawing.Color.Black

        ' reset the status bar...
        StatusText = "Text box cleared"
    End Sub


    Private Sub txtEdit_TextChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles txtEdit.TextChanged
        ' reset the status bar...
        StatusText = "Ready"
    End Sub


    Private Sub toolbar_ButtonClick(ByVal sender As Object, ByVal e As System.Windows.Forms.ToolBarButtonClickEventArgs) Handles toolbar.ButtonClick
        If e.Button Is toolbarClear Then
            ClearEditBox()
        End If
        If e.Button Is toolbarRed Then
            RedText()
        End If
        If e.Button Is toolbarBlue Then
            BlueText()
        End If
        If e.Button Is toolbarUppercase Then
            UppercaseText()
        End If
        If e.Button Is toolbarLowercase Then
            LowercaseText()
        End If
        If e.Button Is toolbarHelpAbout Then
            ShowAboutBox()
        End If

    End Sub


    Public Sub UppercaseText()
        EditText = EditText.ToUpper

        StatusText = "The text is all uppercase"

    End Sub

    Public Sub LowercaseText()
        EditText = EditText.ToLower
        StatusText = "The text is all lowercase"
    End Sub

    Public Sub RedText()
        txtEdit.ForeColor = System.Drawing.Color.Red
        StatusText = "The text is red"
    End Sub

    Public Sub BlueText()
        txtEdit.ForeColor = System.Drawing.Color.Blue
        StatusText = "The text is blue"
    End Sub


    Public Sub ShowAboutBox()
        MessageBox.Show("About")
    End Sub


    Protected Overrides Sub Finalize()
        MyBase.Finalize()
    End Sub
End Class

           
       

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