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View Spreadsheet - VB.NET

Spreadsheet SDK sample in VB.NET demonstrating ‘View Spreadsheet’

Form1.Designer.vb
��Partial Class Form1

	''' <summary>

	''' Required designer variable.

	''' </summary>

	Private components As System.ComponentModel.IContainer = Nothing



	''' <summary>

	''' Clean up any resources being used.

	''' </summary>

	''' <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>

	Protected Overrides Sub Dispose(disposing As Boolean)

		If disposing AndAlso (components IsNot Nothing) Then

			components.Dispose()

		End If

		MyBase.Dispose(disposing)

	End Sub



	#Region "Windows Form Designer generated code"



	''' <summary>

	''' Required method for Designer support - do not modify

	''' the contents of this method with the code editor.

	''' </summary>

	Private Sub InitializeComponent()

		Dim resources As New System.ComponentModel.ComponentResourceManager(GetType(Form1))

		Me.lblStub = New System.Windows.Forms.Label()

		Me.menuStrip1 = New System.Windows.Forms.MenuStrip()

		Me.filesToolStripMenuItem = New System.Windows.Forms.ToolStripMenuItem()

		Me.tsmiOpen = New System.Windows.Forms.ToolStripMenuItem()

		Me.tsmiPrint = New System.Windows.Forms.ToolStripMenuItem()

		Me.tsmiPrintPreview = New System.Windows.Forms.ToolStripMenuItem()

		Me.tsmiExit = New System.Windows.Forms.ToolStripMenuItem()

		Me.helpToolStripMenuItem = New System.Windows.Forms.ToolStripMenuItem()

		Me.tsmiVisitWebsite = New System.Windows.Forms.ToolStripMenuItem()

		Me.tsmiAbout = New System.Windows.Forms.ToolStripMenuItem()

		Me.toolStrip = New System.Windows.Forms.ToolStrip()

		Me.tsbOpen = New System.Windows.Forms.ToolStripButton()

		Me.toolStripSeparator1 = New System.Windows.Forms.ToolStripSeparator()

		Me.tsbPromo = New System.Windows.Forms.ToolStripButton()

		Me.toolStripSeparator2 = New System.Windows.Forms.ToolStripSeparator()

		Me.tsbVisitWebsite = New System.Windows.Forms.ToolStripButton()

		Me.openFileDialog = New System.Windows.Forms.OpenFileDialog()

		Me.menuStrip1.SuspendLayout()

		Me.toolStrip.SuspendLayout()

		Me.SuspendLayout()

		' 

		' lblStub

		' 

		Me.lblStub.BackColor = System.Drawing.SystemColors.Window

		Me.lblStub.Dock = System.Windows.Forms.DockStyle.Fill

		Me.lblStub.Font = New System.Drawing.Font("Arial", 17.25F, System.Drawing.FontStyle.Italic)

		Me.lblStub.ForeColor = System.Drawing.SystemColors.AppWorkspace

		Me.lblStub.Location = New System.Drawing.Point(0, 49)

		Me.lblStub.Name = "lblStub"

		Me.lblStub.Size = New System.Drawing.Size(837, 508)

		Me.lblStub.TabIndex = 5

		Me.lblStub.Text = "Click here to open spreadsheet files: " & vbCr & vbLf & vbCr & vbLf & "Excel 2003/2007 (*.xls, *.xlsx) " & vbCr & vbLf & "Open " & "Office Calc (*.ods)" & vbCr & vbLf & "CSV Comma Separated Values (*.csv)" & vbCr & vbLf & "TXT tab-delimited value" & "s (*.txt)"

		Me.lblStub.TextAlign = System.Drawing.ContentAlignment.MiddleCenter

		AddHandler Me.lblStub.Click, New System.EventHandler(AddressOf Me.tsmiOpen_Click)

		' 

		' menuStrip1

		' 

		Me.menuStrip1.Items.AddRange(New System.Windows.Forms.ToolStripItem() {Me.filesToolStripMenuItem, Me.helpToolStripMenuItem})

		Me.menuStrip1.Location = New System.Drawing.Point(0, 0)

		Me.menuStrip1.Name = "menuStrip1"

		Me.menuStrip1.Padding = New System.Windows.Forms.Padding(4, 2, 0, 2)

		Me.menuStrip1.Size = New System.Drawing.Size(837, 24)

		Me.menuStrip1.TabIndex = 6

		Me.menuStrip1.Text = "menuStrip1"

		' 

		' filesToolStripMenuItem

		' 

		Me.filesToolStripMenuItem.DropDownItems.AddRange(New System.Windows.Forms.ToolStripItem() {Me.tsmiOpen, Me.tsmiPrint, Me.tsmiPrintPreview, Me.tsmiExit})

		Me.filesToolStripMenuItem.Name = "filesToolStripMenuItem"

		Me.filesToolStripMenuItem.Size = New System.Drawing.Size(42, 20)

		Me.filesToolStripMenuItem.Text = "Files"

		' 

		' tsmiOpen

		' 

		Me.tsmiOpen.Name = "tsmiOpen"

		Me.tsmiOpen.ShortcutKeys = CType((System.Windows.Forms.Keys.Control Or System.Windows.Forms.Keys.O), System.Windows.Forms.Keys)

		Me.tsmiOpen.Size = New System.Drawing.Size(166, 22)

		Me.tsmiOpen.Text = "Open"

		AddHandler Me.tsmiOpen.Click, New System.EventHandler(AddressOf Me.tsmiOpen_Click)

		' 

		' tsmiPrint

		' 

		Me.tsmiPrint.Enabled = False

		Me.tsmiPrint.Name = "tsmiPrint"

		Me.tsmiPrint.Size = New System.Drawing.Size(166, 22)

		Me.tsmiPrint.Text = "Print..."

		Me.tsmiPrint.Visible = False

		' 

		' tsmiPrintPreview

		' 

		Me.tsmiPrintPreview.Enabled = False

		Me.tsmiPrintPreview.Name = "tsmiPrintPreview"

		Me.tsmiPrintPreview.Size = New System.Drawing.Size(166, 22)

		Me.tsmiPrintPreview.Text = "Print Preview..."

		Me.tsmiPrintPreview.Visible = False

		' 

		' tsmiExit

		' 

		Me.tsmiExit.Name = "tsmiExit"

		Me.tsmiExit.Size = New System.Drawing.Size(166, 22)

		Me.tsmiExit.Text = "Exit"

		AddHandler Me.tsmiExit.Click, New System.EventHandler(AddressOf Me.tsmiExit_Click)

		' 

		' helpToolStripMenuItem

		' 

		Me.helpToolStripMenuItem.DropDownItems.AddRange(New System.Windows.Forms.ToolStripItem() {Me.tsmiVisitWebsite, Me.tsmiAbout})

		Me.helpToolStripMenuItem.Name = "helpToolStripMenuItem"

		Me.helpToolStripMenuItem.Size = New System.Drawing.Size(44, 20)

		Me.helpToolStripMenuItem.Text = "Help"

		' 

		' tsmiVisitWebsite

		' 

		Me.tsmiVisitWebsite.Name = "tsmiVisitWebsite"

		Me.tsmiVisitWebsite.Size = New System.Drawing.Size(152, 22)

		Me.tsmiVisitWebsite.Text = "Visit Website"

		AddHandler Me.tsmiVisitWebsite.Click, New System.EventHandler(AddressOf Me.tsmiVisitWebsite_Click)

		' 

		' tsmiAbout

		' 

		Me.tsmiAbout.Name = "tsmiAbout"

		Me.tsmiAbout.Size = New System.Drawing.Size(152, 22)

		Me.tsmiAbout.Text = "About"

		AddHandler Me.tsmiAbout.Click, New System.EventHandler(AddressOf Me.tsmiAbout_Click)

		' 

		' toolStrip

		' 

		Me.toolStrip.Items.AddRange(New System.Windows.Forms.ToolStripItem() {Me.tsbOpen, Me.toolStripSeparator1, Me.tsbPromo, Me.toolStripSeparator2, Me.tsbVisitWebsite})

		Me.toolStrip.Location = New System.Drawing.Point(0, 24)

		Me.toolStrip.Name = "toolStrip"

		Me.toolStrip.Size = New System.Drawing.Size(837, 25)

		Me.toolStrip.TabIndex = 7

		Me.toolStrip.Text = "toolStrip1"

		' 

		' tsbOpen

		' 

		Me.tsbOpen.Font = New System.Drawing.Font("Tahoma", 8.25F, System.Drawing.FontStyle.Bold)

		Me.tsbOpen.ImageTransparentColor = System.Drawing.Color.Black

		Me.tsbOpen.Name = "tsbOpen"

		Me.tsbOpen.Size = New System.Drawing.Size(71, 22)

		Me.tsbOpen.Text = "Open File..."

		AddHandler Me.tsbOpen.Click, New System.EventHandler(AddressOf Me.tsmiOpen_Click)

		' 

		' toolStripSeparator1

		' 

		Me.toolStripSeparator1.Name = "toolStripSeparator1"

		Me.toolStripSeparator1.Size = New System.Drawing.Size(6, 25)

		' 

		' tsbPromo

		' 

		Me.tsbPromo.DisplayStyle = System.Windows.Forms.ToolStripItemDisplayStyle.Text

		Me.tsbPromo.Font = New System.Drawing.Font("Tahoma", 8.25F, System.Drawing.FontStyle.Bold)

		Me.tsbPromo.ImageTransparentColor = System.Drawing.Color.Magenta

		Me.tsbPromo.Name = "tsbPromo"

		Me.tsbPromo.Size = New System.Drawing.Size(320, 22)

		Me.tsbPromo.Text = "Developers: Check Bytescout Spreadsheet SDK for .NET"

		AddHandler Me.tsbPromo.Click, New System.EventHandler(AddressOf Me.tsbPromo_Click)

		' 

		' toolStripSeparator2

		' 

		Me.toolStripSeparator2.Name = "toolStripSeparator2"

		Me.toolStripSeparator2.Size = New System.Drawing.Size(6, 25)

		' 

		' tsbVisitWebsite

		' 

		Me.tsbVisitWebsite.DisplayStyle = System.Windows.Forms.ToolStripItemDisplayStyle.Text

		Me.tsbVisitWebsite.Font = New System.Drawing.Font("Tahoma", 8.25F, System.Drawing.FontStyle.Bold)

		Me.tsbVisitWebsite.ImageTransparentColor = System.Drawing.Color.Magenta

		Me.tsbVisitWebsite.Name = "tsbVisitWebsite"

		Me.tsbVisitWebsite.Size = New System.Drawing.Size(84, 22)

		Me.tsbVisitWebsite.Text = "Visit Website"

		AddHandler Me.tsbVisitWebsite.Click, New System.EventHandler(AddressOf Me.tsmiVisitWebsite_Click)

		' 

		' openFileDialog

		' 

		Me.openFileDialog.Filter = resources.GetString("openFileDialog.Filter")

		Me.openFileDialog.SupportMultiDottedExtensions = True

		' 

		' Form1

		' 

		Me.AutoScaleDimensions = New System.Drawing.SizeF(6F, 13F)

		Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font

		Me.ClientSize = New System.Drawing.Size(837, 557)

		Me.Controls.Add(Me.lblStub)

		Me.Controls.Add(Me.toolStrip)

		Me.Controls.Add(Me.menuStrip1)

		Me.Name = "Form1"

		Me.Text = "Spreadsheet Viewer"

		Me.menuStrip1.ResumeLayout(False)

		Me.menuStrip1.PerformLayout()

		Me.toolStrip.ResumeLayout(False)

		Me.toolStrip.PerformLayout()

		Me.ResumeLayout(False)

		Me.PerformLayout()



	End Sub



	#End Region



	Private lblStub As System.Windows.Forms.Label

	Private menuStrip1 As System.Windows.Forms.MenuStrip

	Private filesToolStripMenuItem As System.Windows.Forms.ToolStripMenuItem

	Private tsmiOpen As System.Windows.Forms.ToolStripMenuItem

	Private tsmiPrint As System.Windows.Forms.ToolStripMenuItem

	Private tsmiPrintPreview As System.Windows.Forms.ToolStripMenuItem

	Private tsmiExit As System.Windows.Forms.ToolStripMenuItem

	Private helpToolStripMenuItem As System.Windows.Forms.ToolStripMenuItem

	Private tsmiVisitWebsite As System.Windows.Forms.ToolStripMenuItem

	Private tsmiAbout As System.Windows.Forms.ToolStripMenuItem

	Private toolStrip As System.Windows.Forms.ToolStrip

	Private tsbOpen As System.Windows.Forms.ToolStripButton

	Private toolStripSeparator1 As System.Windows.Forms.ToolStripSeparator

	Private tsbPromo As System.Windows.Forms.ToolStripButton

	Private toolStripSeparator2 As System.Windows.Forms.ToolStripSeparator

	Private tsbVisitWebsite As System.Windows.Forms.ToolStripButton

	Private openFileDialog As System.Windows.Forms.OpenFileDialog



End Class


Form1.vb
Imports System.IO
Imports System.Text
Imports System.Windows.Forms
Imports Bytescout.Spreadsheet

Public Partial Class Form1
	Inherits Form
	Private _spreadsheetControl As SpreadsheetControl = Nothing

	Private _fileName As String = Nothing

	Public Sub New(args As String())
		If args.Length > 0 AndAlso File.Exists(args(0)) Then
			_fileName = args(0)
		End If

		If _fileName IsNot Nothing Then
			OpenFile(_fileName)
		End If

		InitializeComponent()
	End Sub

	Private Sub OpenFile(fileName As String)
		Text = "Spreadsheet Viewer - " & fileName

		Dim xls As New Spreadsheet()
		xls.RegistrationName = "demo"
		xls.RegistrationKey = "demo"

		Try
			xls.LoadFromFile(fileName)
		Catch generatedExceptionName As SpreadsheetProtectionPasswordRequired
			Dim passwordDialog As New PasswordDialog()

			If passwordDialog.ShowDialog(Me) = DialogResult.OK Then
				xls.LoadFromFile(fileName, CacheType.Memory, ",", Encoding.[Default], passwordDialog.Password)
			Else
				Return
			End If
		End Try

		lblStub.Visible = False

		If _spreadsheetControl Is Nothing Then
			_spreadsheetControl = New SpreadsheetControl()
			_spreadsheetControl.Dock = DockStyle.Fill

			Controls.Add(_spreadsheetControl)

			_spreadsheetControl.BringToFront()
			_spreadsheetControl.Focus()
		End If

		Cursor = Cursors.WaitCursor

		Try
			_spreadsheetControl.Spreadsheet = xls
		Catch e As Exception
			MessageBox.Show(e.ToString())
		Finally
			Cursor = Cursors.[Default]
		End Try
	End Sub

	Private Sub tsmiOpen_Click(sender As Object, e As EventArgs)
		If openFileDialog.ShowDialog() = DialogResult.OK Then
			OpenFile(openFileDialog.FileName)
		End If
	End Sub

	Private Sub tsmiAbout_Click(sender As Object, e As EventArgs)
		MessageBox.Show("Spreadsheet Viewer" & vbLf & vbLf & "www.bytescout.com" & vbLf & vbLf & "Copyright (c) Bytescout Software 2012", "About...")
	End Sub

	Private Sub tsmiExit_Click(sender As Object, e As EventArgs)
		Close()
	End Sub

	Private Sub tsmiVisitWebsite_Click(sender As Object, e As EventArgs)
		System.Diagnostics.Process.Start("http://www.bytescout.com")
	End Sub

	Private Sub tsbPromo_Click(sender As Object, e As EventArgs)
		System.Diagnostics.Process.Start("http://bytescout.com/products/developer/spreadsheetsdk/bytescoutspreadsheetsdk.html")
	End Sub
End Class

PasswordDialog.Designer.vb
��Partial Class PasswordDialog

	''' <summary>

	''' Required designer variable.

	''' </summary>

	Private components As System.ComponentModel.IContainer = Nothing



	''' <summary>

	''' Clean up any resources being used.

	''' </summary>

	''' <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>

	Protected Overrides Sub Dispose(disposing As Boolean)

		If disposing AndAlso (components IsNot Nothing) Then

			components.Dispose()

		End If

		MyBase.Dispose(disposing)

	End Sub



	#Region "Windows Form Designer generated code"



	''' <summary>

	''' Required method for Designer support - do not modify

	''' the contents of this method with the code editor.

	''' </summary>

	Private Sub InitializeComponent()

		Me.textBoxPassword = New System.Windows.Forms.TextBox()

		Me.label2 = New System.Windows.Forms.Label()

		Me.checkBoxHide = New System.Windows.Forms.CheckBox()

		Me.btnOk = New System.Windows.Forms.Button()

		Me.btnCancel = New System.Windows.Forms.Button()

		Me.SuspendLayout()

		' 

		' textBoxPassword

		' 

		Me.textBoxPassword.Location = New System.Drawing.Point(79, 39)

		Me.textBoxPassword.Name = "textBoxPassword"

		Me.textBoxPassword.Size = New System.Drawing.Size(168, 22)

		Me.textBoxPassword.TabIndex = 1

		' 

		' label2

		' 

		Me.label2.AutoSize = True

		Me.label2.Location = New System.Drawing.Point(4, 42)

		Me.label2.Name = "label2"

		Me.label2.Size = New System.Drawing.Size(73, 17)

		Me.label2.TabIndex = 2

		Me.label2.Text = "Password:"

		' 

		' checkBoxHide

		' 

		Me.checkBoxHide.AutoSize = True

		Me.checkBoxHide.Location = New System.Drawing.Point(7, 12)

		Me.checkBoxHide.Name = "checkBoxHide"

		Me.checkBoxHide.Size = New System.Drawing.Size(123, 21)

		Me.checkBoxHide.TabIndex = 3

		Me.checkBoxHide.Text = "Hide password"

		Me.checkBoxHide.UseVisualStyleBackColor = True

		AddHandler Me.checkBoxHide.CheckedChanged, New System.EventHandler(AddressOf Me.checkBoxHide_CheckedChanged)

		' 

		' btnOk

		' 

		Me.btnOk.DialogResult = System.Windows.Forms.DialogResult.OK

		Me.btnOk.Location = New System.Drawing.Point(91, 67)

		Me.btnOk.Name = "btnOk"

		Me.btnOk.Size = New System.Drawing.Size(75, 23)

		Me.btnOk.TabIndex = 4

		Me.btnOk.Text = "Ok"

		Me.btnOk.UseVisualStyleBackColor = True

		AddHandler Me.btnOk.Click, New System.EventHandler(AddressOf Me.btnOk_Click)

		' 

		' btnCancel

		' 

		Me.btnCancel.DialogResult = System.Windows.Forms.DialogResult.Cancel

		Me.btnCancel.Location = New System.Drawing.Point(172, 67)

		Me.btnCancel.Name = "btnCancel"

		Me.btnCancel.Size = New System.Drawing.Size(75, 23)

		Me.btnCancel.TabIndex = 5

		Me.btnCancel.Text = "Cancel"

		Me.btnCancel.UseVisualStyleBackColor = True

		AddHandler Me.btnCancel.Click, New System.EventHandler(AddressOf Me.btnCancel_Click)

		' 

		' PasswordDialog

		' 

		Me.AcceptButton = Me.btnOk

		Me.AutoScaleDimensions = New System.Drawing.SizeF(8F, 16F)

		Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font

		Me.CancelButton = Me.btnCancel

		Me.ClientSize = New System.Drawing.Size(255, 98)

		Me.Controls.Add(Me.btnCancel)

		Me.Controls.Add(Me.btnOk)

		Me.Controls.Add(Me.checkBoxHide)

		Me.Controls.Add(Me.label2)

		Me.Controls.Add(Me.textBoxPassword)

		Me.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog

		Me.MaximizeBox = False

		Me.MinimizeBox = False

		Me.Name = "PasswordDialog"

		Me.SizeGripStyle = System.Windows.Forms.SizeGripStyle.Hide

		Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterParent

		Me.Text = "Please enter a password"

		Me.ResumeLayout(False)

		Me.PerformLayout()



	End Sub



	#End Region



	Private textBoxPassword As System.Windows.Forms.TextBox

	Private label2 As System.Windows.Forms.Label

	Private checkBoxHide As System.Windows.Forms.CheckBox

	Private btnOk As System.Windows.Forms.Button

	Private btnCancel As System.Windows.Forms.Button

End Class


PasswordDialog.vb
Imports System.Windows.Forms

Public Partial Class PasswordDialog
	Inherits Form
	Public Sub New()
		InitializeComponent()
	End Sub

	Public ReadOnly Property Password() As String
		Get
			Return textBoxPassword.Text
		End Get
	End Property

	Private Sub btnOk_Click(sender As Object, e As EventArgs)
		'DialogResult = DialogResult.OK;
		'Close();
	End Sub

	Private Sub btnCancel_Click(sender As Object, e As EventArgs)

	End Sub

	Private Sub checkBoxHide_CheckedChanged(sender As Object, e As EventArgs)
		If checkBoxHide.Checked Then
			textBoxPassword.PasswordChar = "*"C
		Else
			textBoxPassword.PasswordChar = ControlChars.NullChar
		End If
	End Sub
End Class

Program.vb
Imports System.Windows.Forms

NotInheritable Class Program
	Private Sub New()
	End Sub
	''' <summary>
	''' The main entry point for the application.
	''' </summary>
	<STAThread> _
	Friend Shared Sub Main(args As String())
		Application.EnableVisualStyles()
		Application.SetCompatibleTextRenderingDefault(False)

		Application.Run(New Form1(args))
	End Sub
End Class

Download Source Code (.zip)

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