в 16:40, 26 мая 2010

2010-05-26T16:40:06Z

Admin: 1 версия

2010-05-26T12:44:22Z

1 версия

Новая страница

==Common Dialog: FolderBrowser, Print, Color, Save, Open, Font Dialog==

<source lang="vbnet">
Imports System
Imports System.Collections
Imports System.ruponentModel
Imports System.Windows.Forms
Imports System.Data
Imports System.Configuration
Imports System.Resources
Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.IO
Imports System.Drawing.Printing

Public Class MainClass
Shared Sub Main()
Dim myform As Form = New Dialogs()
Application.Run(myform)
End Sub
End Class
Public Class Dialogs
"Declare variable
Private strFileName As String
Private objStreamToPrint As StreamReader
Private objPrintFont As Font
Private Sub btnOpen_Click(ByVal sender As Object, _
ByVal e As System.EventArgs) Handles btnOpen.Click
"Set the Open dialog properties
With OpenFileDialog1
.Filter = "Text files (*.txt)|*.txt|All files (*.*)|*.*"
.FilterIndex = 1
.Title = "Demo Open File Dialog"
End With
"Show the Open dialog and if the user clicks the Open button,
"load the file
If OpenFileDialog1.ShowDialog = Windows.Forms.DialogResult.OK Then
Dim allText As String
Try
"Save the file name
strFileName = OpenFileDialog1.FileName
"Read the contents of the file
allText = My.ruputer.FileSystem.ReadAllText(strFileName)
"Display the file contents in the TextBox
txtFile.Text = allText
Catch fileException As Exception
Throw fileException
End Try
End If
End Sub
Private Sub btnSave_Click(ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles btnSave.Click
"Set the Save dialog properties
With SaveFileDialog1
.DefaultExt = "txt"
.FileName = strFileName
.Filter = "Text files (*.txt)|*.txt|All files (*.*)|*.*"
.FilterIndex = 1
.OverwritePrompt = True
.Title = "Demo Save File Dialog"
End With
"Show the Save dialog and if the user clicks the Save button,
"save the file
If SaveFileDialog1.ShowDialog = Windows.Forms.DialogResult.OK Then
Try
"Save the file name
strFileName = SaveFileDialog1.FileName
Dim filePath As String
"Open or Create the file
filePath = System.IO.Path.rubine( _
My.ruputer.FileSystem.SpecialDirectories.MyDocuments, _
strFileName)
"Replace the contents of the file
My.ruputer.FileSystem.WriteAllText(filePath, txtFile.Text, False)
Catch fileException As Exception
Throw fileException
End Try
End If
End Sub
Private Sub btnFont_Click(ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles btnFont.Click
"Set the FontDialog control properties
FontDialog1.ShowColor = True
"Show the Font dialog
If FontDialog1.ShowDialog = Windows.Forms.DialogResult.OK Then
"If the OK button was clicked set the font
"in the text box on the form
txtFile.Font = FontDialog1.Font
"Set the color of the font in the text box on the form
txtFile.ForeColor = FontDialog1.Color
End If
End Sub
Private Sub btnColor_Click(ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles btnColor.Click
"Show the Color dialog
If ColorDialog1.ShowDialog = Windows.Forms.DialogResult.OK Then
"Set the BackColor property of the form
Me.BackColor = ColorDialog1.Color
End If
End Sub
Private Sub btnPrint_Click(ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles btnPrint.Click
"Declare an object for the PrintDocument class
Dim objPrintDocument As PrintDocument = New PrintDocument()
"Set the DocumentName property
objPrintDocument.DocumentName = "Text File Print Demo"
PrintDialog1.AllowPrintToFile = False
PrintDialog1.AllowSelection = False
PrintDialog1.AllowSomePages = False
PrintDialog1.Document = objPrintDocument
If PrintDialog1.ShowDialog() = DialogResult.OK Then
objStreamToPrint = New StreamReader(strFileName)
objPrintFont = New Font("Arial", 10)
AddHandler objPrintDocument.PrintPage, _
AddressOf objPrintDocument_PrintPage
objPrintDocument.PrinterSettings = PrintDialog1.PrinterSettings
objPrintDocument.Print()
objStreamToPrint.Close()
objStreamToPrint = Nothing
End If
End Sub
Private Sub objPrintDocument_PrintPage(ByVal sender As Object, _
ByVal e As System.Drawing.Printing.PrintPageEventArgs)
Dim sngLinesPerpage As Single = 0
Dim sngVerticalPosition As Single = 0
Dim intLineCount As Integer = 0
Dim sngLeftMargin As Single = e.MarginBounds.Left
Dim sngTopMargin As Single = e.MarginBounds.Top
Dim strLine As String
sngLinesPerpage = _
e.MarginBounds.Height / objPrintFont.GetHeight(e.Graphics)
strLine = objStreamToPrint.ReadLine()
While (intLineCount < sngLinesPerpage And Not (strLine Is Nothing))
sngVerticalPosition = sngTopMargin + _
(intLineCount * objPrintFont.GetHeight(e.Graphics))
e.Graphics.DrawString(strLine, objPrintFont, Brushes.Black, _
sngLeftMargin, sngVerticalPosition, New StringFormat())
intLineCount = intLineCount + 1
If (intLineCount < sngLinesPerpage) Then
strLine = objStreamToPrint.ReadLine()
End If
End While
If (strLine <> Nothing) Then
e.HasMorePages = True
Else
e.HasMorePages = False
End If
End Sub
Private Sub btnBrowse_Click(ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles btnBrowse.Click
FolderBrowserDialog1.Description = "Select a folder for your backups:"
FolderBrowserDialog1.RootFolder = Environment.SpecialFolder.MyComputer
FolderBrowserDialog1.ShowNewFolderButton = False
If FolderBrowserDialog1.ShowDialog = Windows.Forms.DialogResult.OK Then
"Display the selected folder
txtFile.Text = FolderBrowserDialog1.SelectedPath
End If
End Sub
End Class

<Global.Microsoft.VisualBasic.rupilerServices.DesignerGenerated()> _
Partial Public Class Dialogs
Inherits System.Windows.Forms.Form
"Form overrides dispose to clean up the component list.
<System.Diagnostics.DebuggerNonUserCode()> _
Protected Overloads 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.txtFile = New System.Windows.Forms.TextBox
Me.btnOpen = New System.Windows.Forms.Button
Me.OpenFileDialog1 = New System.Windows.Forms.OpenFileDialog
Me.btnSave = New System.Windows.Forms.Button
Me.SaveFileDialog1 = New System.Windows.Forms.SaveFileDialog
Me.btnFont = New System.Windows.Forms.Button
Me.FontDialog1 = New System.Windows.Forms.FontDialog
Me.btnColor = New System.Windows.Forms.Button
Me.ColorDialog1 = New System.Windows.Forms.ColorDialog
Me.btnPrint = New System.Windows.Forms.Button
Me.PrintDialog1 = New System.Windows.Forms.PrintDialog
Me.btnBrowse = New System.Windows.Forms.Button
Me.FolderBrowserDialog1 = New System.Windows.Forms.FolderBrowserDialog
Me.SuspendLayout()
"
"txtFile
"
Me.txtFile.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.txtFile.Location = New System.Drawing.Point(8, 8)
Me.txtFile.Multiline = True
Me.txtFile.Name = "txtFile"
Me.txtFile.ScrollBars = System.Windows.Forms.ScrollBars.Vertical
Me.txtFile.Size = New System.Drawing.Size(352, 264)
Me.txtFile.TabIndex = 0
"
"btnOpen
"
Me.btnOpen.Anchor = CType((System.Windows.Forms.AnchorStyles.Top Or System.Windows.Forms.AnchorStyles.Right), System.Windows.Forms.AnchorStyles)
Me.btnOpen.Location = New System.Drawing.Point(367, 8)
Me.btnOpen.Name = "btnOpen"
Me.btnOpen.Size = New System.Drawing.Size(75, 23)
Me.btnOpen.TabIndex = 1
Me.btnOpen.Text = "Open"
"
"OpenFileDialog1
"
Me.OpenFileDialog1.FileName = "OpenFileDialog1"
"
"btnSave
"
Me.btnSave.Anchor = CType((System.Windows.Forms.AnchorStyles.Top Or System.Windows.Forms.AnchorStyles.Right), System.Windows.Forms.AnchorStyles)
Me.btnSave.Location = New System.Drawing.Point(367, 38)
Me.btnSave.Name = "btnSave"
Me.btnSave.Size = New System.Drawing.Size(75, 23)
Me.btnSave.TabIndex = 2
Me.btnSave.Text = "Save"
"
"btnFont
"
Me.btnFont.Anchor = CType((System.Windows.Forms.AnchorStyles.Top Or System.Windows.Forms.AnchorStyles.Right), System.Windows.Forms.AnchorStyles)
Me.btnFont.Location = New System.Drawing.Point(367, 68)
Me.btnFont.Name = "btnFont"
Me.btnFont.Size = New System.Drawing.Size(75, 23)
Me.btnFont.TabIndex = 3
Me.btnFont.Text = "Font"
"
"btnColor
"
Me.btnColor.Anchor = CType((System.Windows.Forms.AnchorStyles.Top Or System.Windows.Forms.AnchorStyles.Right), System.Windows.Forms.AnchorStyles)
Me.btnColor.Location = New System.Drawing.Point(367, 98)
Me.btnColor.Name = "btnColor"
Me.btnColor.Size = New System.Drawing.Size(75, 23)
Me.btnColor.TabIndex = 4
Me.btnColor.Text = "Color"
"
"btnPrint
"
Me.btnPrint.Anchor = CType((System.Windows.Forms.AnchorStyles.Top Or System.Windows.Forms.AnchorStyles.Right), System.Windows.Forms.AnchorStyles)
Me.btnPrint.Location = New System.Drawing.Point(367, 128)
Me.btnPrint.Name = "btnPrint"
Me.btnPrint.Size = New System.Drawing.Size(75, 23)
Me.btnPrint.TabIndex = 5
Me.btnPrint.Text = "Print"
"
"btnBrowse
"
Me.btnBrowse.Anchor = CType((System.Windows.Forms.AnchorStyles.Top Or System.Windows.Forms.AnchorStyles.Right), System.Windows.Forms.AnchorStyles)
Me.btnBrowse.Location = New System.Drawing.Point(367, 158)
Me.btnBrowse.Name = "btnBrowse"
Me.btnBrowse.Size = New System.Drawing.Size(75, 23)
Me.btnBrowse.TabIndex = 6
Me.btnBrowse.Text = "Browse"
"
"FolderBrowserDialog1
"
Me.FolderBrowserDialog1.SelectedPath = "FolderBrowserDialog1"
"
"Dialogs
"
Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
Me.ClientSize = New System.Drawing.Size(448, 277)
Me.Controls.Add(Me.btnBrowse)
Me.Controls.Add(Me.btnPrint)
Me.Controls.Add(Me.btnColor)
Me.Controls.Add(Me.btnFont)
Me.Controls.Add(Me.btnSave)
Me.Controls.Add(Me.btnOpen)
Me.Controls.Add(Me.txtFile)
Me.Name = "Dialogs"
Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen
Me.Text = "Dialogs"
Me.ResumeLayout(False)
Me.PerformLayout()
End Sub
Friend WithEvents txtFile As System.Windows.Forms.TextBox
Friend WithEvents btnOpen As System.Windows.Forms.Button
Friend WithEvents OpenFileDialog1 As System.Windows.Forms.OpenFileDialog
Friend WithEvents btnSave As System.Windows.Forms.Button
Friend WithEvents SaveFileDialog1 As System.Windows.Forms.SaveFileDialog
Friend WithEvents btnFont As System.Windows.Forms.Button
Friend WithEvents FontDialog1 As System.Windows.Forms.FontDialog
Friend WithEvents btnColor As System.Windows.Forms.Button
Friend WithEvents ColorDialog1 As System.Windows.Forms.ColorDialog
Friend WithEvents btnPrint As System.Windows.Forms.Button
Friend WithEvents PrintDialog1 As System.Windows.Forms.PrintDialog
Friend WithEvents btnBrowse As System.Windows.Forms.Button
Friend WithEvents FolderBrowserDialog1 As System.Windows.Forms.FolderBrowserDialog
End Class

</source>

==Display Print dialog==

<source lang="vbnet">
Imports System
Imports System.Collections
Imports System.Data
Imports System.IO
Imports System.Xml.Serialization
Imports System.Windows.Forms
Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Drawing.Text
Imports System.Drawing.Printing

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
Friend WithEvents PrintDocument1 As System.Drawing.Printing.PrintDocument
Friend WithEvents Button1 As System.Windows.Forms.Button
Friend WithEvents PictureBox1 As System.Windows.Forms.PictureBox
"Required by the Windows Form Designer
Private components As System.ruponentModel.Container
"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()
Dim resources As System.Resources.ResourceManager = New System.Resources.ResourceManager(GetType(Form1))
Me.PrintDocument1 = New System.Drawing.Printing.PrintDocument()
Me.Button1 = New System.Windows.Forms.Button()
Me.PictureBox1 = New System.Windows.Forms.PictureBox()
Me.SuspendLayout()
"
"PrintDocument1
"
"
"Button1
"
Me.Button1.Location = New System.Drawing.Point(16, 216)
Me.Button1.Name = "Button1"
Me.Button1.Size = New System.Drawing.Size(264, 32)
Me.Button1.TabIndex = 0
Me.Button1.Text = "Print"
"
"PictureBox1
"
Me.PictureBox1.Image = New System.Drawing.Bitmap("figure2.bmp")
Me.PictureBox1.Location = New System.Drawing.Point(16, 8)
Me.PictureBox1.Name = "PictureBox1"
Me.PictureBox1.Size = New System.Drawing.Size(264, 200)
Me.PictureBox1.SizeMode = System.Windows.Forms.PictureBoxSizeMode.StretchImage
Me.PictureBox1.TabIndex = 1
Me.PictureBox1.TabStop = False
"
"Form1
"
Me.AutoScaleBaseSize = New System.Drawing.Size(6, 15)
Me.ClientSize = New System.Drawing.Size(292, 268)
Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.PictureBox1, Me.Button1})
Me.Name = "Form1"
Me.Text = "Printing 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
End Sub
Private Sub PrintDocument1_PrintPage(ByVal sender As System.Object, _
ByVal e As System.Drawing.Printing.PrintPageEventArgs) _
Handles PrintDocument1.PrintPage
Dim g As Graphics
g = e.Graphics
g.DrawImage(PictureBox1.Image, 0, 0)
g.Dispose()
e.HasMorePages = False
End Sub
Private Sub Button1_Click(ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles Button1.Click
Dim PrintDialog1 As New PrintDialog()
PrintDialog1.Document = PrintDocument1
If PrintDialog1.ShowDialog() = DialogResult.OK Then
PrintDocument1.Print()
End If
End Sub
End Class

</source>

← Предыдущая	Версия 16:40, 26 мая 2010
(нет различий)

VB.Net/GUI/Dialog Print - История изменений

в 16:40, 26 мая 2010

Admin: 1 версия