VB.Net Tutorial/GUI — различия между версиями

Материал из VB Эксперт
Перейти к: навигация, поиск
м (1 версия)
 
(нет различий)

Версия 19:40, 26 мая 2010

Font dialog apply action

<source lang="vbnet">Imports System.Drawing Imports System.Windows.Forms public class FontDialogApplyAction

  public Shared Sub Main
       Application.Run(New Form1)
  End Sub

End class Public Class Form1

   Private Sub btnSetFont_Click(ByVal sender As System.Object, _
    ByVal e As System.EventArgs) Handles btnSetFont.Click
       Dim old_font As Font = Me.Font
       Dim old_color As Color = Me.ForeColor
       dlgFont.ShowColor = True    " Let the user select font color.   
       dlgFont.ShowEffects = True  " Let the user select Strikeout and Underline.
       dlgFont.ShowApply = True    " Display the Apply button.
       dlgFont.Font = Me.Font      " Set the initial font.
       If dlgFont.ShowDialog() = DialogResult.OK Then
           SetFormFont(dlgFont.Font, dlgFont.Color)
       Else
           SetFormFont(old_font, old_color)
       End If
   End Sub
   Private Sub dlgFont_Apply(ByVal sender As Object, _
    ByVal e As System.EventArgs) Handles dlgFont.Apply
       Dim dlg As FontDialog = DirectCast(sender, FontDialog)
       SetFormFont(dlg.Font, dlg.Color)
   End Sub
   Private Sub SetFormFont(ByVal new_font As Font, ByVal new_color As Color)
       Me.Font = new_font
       Me.ForeColor = new_color
   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 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.btnSetFont = New System.Windows.Forms.Button
       Me.Label1 = New System.Windows.Forms.Label
       Me.TextBox1 = New System.Windows.Forms.TextBox
       Me.dlgFont = New System.Windows.Forms.FontDialog
       Me.SuspendLayout()
       "
       "btnSetFont
       "
       Me.btnSetFont.Location = New System.Drawing.Point(8, 8)
       Me.btnSetFont.Name = "btnSetFont"
       Me.btnSetFont.Size = New System.Drawing.Size(96, 32)
       Me.btnSetFont.TabIndex = 0
       Me.btnSetFont.Text = "Set Font"
       "
       "Label1
       "
       Me.Label1.AutoSize = True
       Me.Label1.Location = New System.Drawing.Point(8, 48)
       Me.Label1.Name = "Label1"
       Me.Label1.Size = New System.Drawing.Size(35, 13)
       Me.Label1.TabIndex = 1
       Me.Label1.Text = "Label1"
       "
       "TextBox1
       "
       Me.TextBox1.Location = New System.Drawing.Point(8, 80)
       Me.TextBox1.Name = "TextBox1"
       Me.TextBox1.Size = New System.Drawing.Size(160, 20)
       Me.TextBox1.TabIndex = 2
       Me.TextBox1.Text = "Here"s a TextBox"
       "
       "Form1
       "
       Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.None
       Me.ClientSize = New System.Drawing.Size(325, 273)
       Me.Controls.Add(Me.TextBox1)
       Me.Controls.Add(Me.Label1)
       Me.Controls.Add(Me.btnSetFont)
       Me.Name = "Form1"
       Me.Text = "UseFontDialogWithShowEffects"
       Me.ResumeLayout(False)
       Me.PerformLayout()
   End Sub
   Friend WithEvents btnSetFont As System.Windows.Forms.Button
   Friend WithEvents Label1 As System.Windows.Forms.Label
   Friend WithEvents TextBox1 As System.Windows.Forms.TextBox
   Friend WithEvents dlgFont As System.Windows.Forms.FontDialog

End Class</source>

Font dialog showing effects

<source lang="vbnet">Imports System.Drawing Imports System.Windows.Forms public class FontDialogApplyAction

  public Shared Sub Main
       Application.Run(New Form1)
  End Sub

End class Public Class Form1

   Private Sub btnSetFont_Click(ByVal sender As System.Object, _
    ByVal e As System.EventArgs) Handles btnSetFont.Click
       Dim old_font As Font = Me.Font
       Dim old_color As Color = Me.ForeColor
       dlgFont.ShowColor = True    " Let the user select font color.   
       dlgFont.ShowEffects = True  " Let the user select Strikeout and Underline.
       dlgFont.ShowApply = True    " Display the Apply button.
       dlgFont.Font = Me.Font      " Set the initial font.
       If dlgFont.ShowDialog() = DialogResult.OK Then
           SetFormFont(dlgFont.Font, dlgFont.Color)
       Else
           SetFormFont(old_font, old_color)
       End If
   End Sub
   Private Sub dlgFont_Apply(ByVal sender As Object, _
    ByVal e As System.EventArgs) Handles dlgFont.Apply
       Dim dlg As FontDialog = DirectCast(sender, FontDialog)
       SetFormFont(dlg.Font, dlg.Color)
   End Sub
   Private Sub SetFormFont(ByVal new_font As Font, ByVal new_color As Color)
       Me.Font = new_font
       Me.ForeColor = new_color
   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 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.btnSetFont = New System.Windows.Forms.Button
       Me.Label1 = New System.Windows.Forms.Label
       Me.TextBox1 = New System.Windows.Forms.TextBox
       Me.dlgFont = New System.Windows.Forms.FontDialog
       Me.SuspendLayout()
       "
       "btnSetFont
       "
       Me.btnSetFont.Location = New System.Drawing.Point(8, 8)
       Me.btnSetFont.Name = "btnSetFont"
       Me.btnSetFont.Size = New System.Drawing.Size(96, 32)
       Me.btnSetFont.TabIndex = 0
       Me.btnSetFont.Text = "Set Font"
       "
       "Label1
       "
       Me.Label1.AutoSize = True
       Me.Label1.Location = New System.Drawing.Point(8, 48)
       Me.Label1.Name = "Label1"
       Me.Label1.Size = New System.Drawing.Size(35, 13)
       Me.Label1.TabIndex = 1
       Me.Label1.Text = "Label1"
       "
       "TextBox1
       "
       Me.TextBox1.Location = New System.Drawing.Point(8, 80)
       Me.TextBox1.Name = "TextBox1"
       Me.TextBox1.Size = New System.Drawing.Size(160, 20)
       Me.TextBox1.TabIndex = 2
       Me.TextBox1.Text = "Here"s a TextBox"
       "
       "Form1
       "
       Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.None
       Me.ClientSize = New System.Drawing.Size(325, 273)
       Me.Controls.Add(Me.TextBox1)
       Me.Controls.Add(Me.Label1)
       Me.Controls.Add(Me.btnSetFont)
       Me.Name = "Form1"
       Me.Text = "UseFontDialogWithShowEffects"
       Me.ResumeLayout(False)
       Me.PerformLayout()
   End Sub
   Friend WithEvents btnSetFont As System.Windows.Forms.Button
   Friend WithEvents Label1 As System.Windows.Forms.Label
   Friend WithEvents TextBox1 As System.Windows.Forms.TextBox
   Friend WithEvents dlgFont As System.Windows.Forms.FontDialog

End Class</source>

Get selected font from FontDialog

<source lang="vbnet">Imports System.IO Imports System.Windows.Forms public class FontDialogSelectedFont

  public Shared Sub Main
       Dim FontDB As New FontDialog()
       If (FontDB.ShowDialog() = DialogResult.OK) Then
           Console.WriteLine(FontDB.Font)
       End If
  End Sub

End class</source>

Installed Font Collection

<source lang="vbnet">Imports System.Globalization Imports System.Text Imports System.Collections Imports System.ruponentModel Imports System.Windows.Forms Imports System.Data Imports System.Drawing Imports System.Drawing.Text Imports System

public class Tester

  public Shared Sub Main
  Dim family As FontFamily
       Dim installedFonts As InstalledFontCollection = New InstalledFontCollection()
       For Each family In installedFonts.Families
           Console.WriteLine(family.Name)
       Next family
  End Sub

End class</source>

List all font family name

<source lang="vbnet">Imports System Imports System.Drawing Imports System.Collections Imports System.ruponentModel Imports System.Windows.Forms Imports System.Globalization

public class Tester

  public Shared Sub Main
       Dim family As FontFamily
       For Each family In FontFamily.Families
           If family.IsStyleAvailable(FontStyle.Bold) = False Then Exit For
           Console.WriteLine(family.Name)
       Next family
  End Sub

End class</source>

Aharoni
Andalus
Angsana New
AngsanaUPC
Arabic Transparent
Arial
Arial Black
Arial Narrow
Batang
BatangChe
Book Antiqua
Bookman Old Style
Browallia New
BrowalliaUPC
Comic Sans MS
Cordia New
CordiaUPC
Courier New
David
David Transparent
DilleniaUPC
Dotum
DotumChe
Estrangelo Edessa
EucrosiaUPC
Fixed Miriam Transparent
Franklin Gothic Medium
FrankRuehl
FreesiaUPC
Garamond
Gautami
Georgia
Gulim
GulimChe
Gungsuh
GungsuhChe
Haettenschweiler
Impact
IrisUPC
JasmineUPC
Kartika
KodchiangUPC
Latha
Levenim MT
LilyUPC
Lucida Console
Lucida Sans Unicode
Mangal
Marlett
Microsoft Sans Serif
MingLiU
Miriam
Miriam Fixed
Miriam Transparent

Paint all available font families

<source lang="vbnet">Imports System Imports System.Drawing Imports System.Collections Imports System.ruponentModel Imports System.Windows.Forms Imports System.Data Imports System.Drawing.Text public class PaintAllAvailableFonts

  public Shared Sub Main
       Application.Run(New Form1)
  End Sub

End class public class Form1

 Inherits System.Windows.Forms.Form
 Protected Overrides Sub OnPaint(ByVal e As PaintEventArgs)
       Dim g As Graphics = e.Graphics
       g.Clear(Me.BackColor)
       Dim families As FontFamily() = FontFamily.GetFamilies(g)
       Dim familiesFont As Font
       Dim familyString As String
       Dim spacing As Single = 0
       Dim family As FontFamily
       For Each family In families
           familiesFont = New Font(family, 16, FontStyle.Bold)
           familyString = "This is the " + family.Name + "family."
           g.DrawString(familyString, familiesFont, Brushes.Black, New PointF(0, spacing))
           spacing += familiesFont.Height
       Next family
       g.Dispose()
 End Sub
 Public Sub New()
  
   MyBase.New()
   Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
   Me.ClientSize = New System.Drawing.Size(292, 273)
   Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen
 End Sub

End Class</source>

Set Properties for a FontDialog

<source lang="vbnet">Imports System.Drawing Imports System.Windows.Forms public class FontDialogProperty

  public Shared Sub Main
       Dim FontDialog1 As FontDialog = New System.Windows.Forms.FontDialog
       
       Dim objNewFont As Font
       objNewFont = New Font("Verdana", 12, FontStyle.Underline)
       With FontDialog1
           .Font = objNewFont
           .AllowScriptChange = False
           .ShowColor = True
           .Color = Color.Blue
           .ShowApply = True
           ".ShowEffects = False
       End With
       If FontDialog1.ShowDialog = Windows.Forms.DialogResult.OK Then
           Console.WriteLine(FontDialog1.Font)
           Console.WriteLine(FontDialog1.Color)
       End If
  End Sub

End class</source>

Use Font dialog to set Label font

<source lang="vbnet">Imports System.Drawing.Text Imports System.Drawing Imports System.Drawing.Drawing2D Imports System.Windows.Forms public class UseFontDialogToSetLabelFont

  public Shared Sub Main
       Application.Run(New Form1)
  End Sub

End class Public Class Form1

   Inherits System.Windows.Forms.Form
   Public Sub New()
       MyBase.New()
       InitializeComponent()
   End Sub
   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
   Private components As System.ruponentModel.IContainer
   Friend WithEvents Label1 As System.Windows.Forms.Label
   Friend WithEvents Button1 As System.Windows.Forms.Button
   Friend WithEvents FontDialog1 As System.Windows.Forms.FontDialog
   <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
       Me.Label1 = New System.Windows.Forms.Label
       Me.Button1 = New System.Windows.Forms.Button
       Me.FontDialog1 = New System.Windows.Forms.FontDialog
       Me.SuspendLayout()
       "
       "Label1
       "
       Me.Label1.Location = New System.Drawing.Point(48, 16)
       Me.Label1.Name = "Label1"
       Me.Label1.Size = New System.Drawing.Size(168, 96)
       Me.Label1.TabIndex = 0
       Me.Label1.Text = "Font Setting"
       "
       "Button1
       "
       Me.Button1.Location = New System.Drawing.Point(88, 136)
       Me.Button1.Name = "Button1"
       Me.Button1.Size = New System.Drawing.Size(88, 24)
       Me.Button1.TabIndex = 1
       Me.Button1.Text = "Change Font"
       "
       "Form1
       "
       Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
       Me.ClientSize = New System.Drawing.Size(272, 190)
       Me.Controls.Add(Me.Button1)
       Me.Controls.Add(Me.Label1)
       Me.Name = "Form1"
       Me.Text = "Form1"
       Me.ResumeLayout(False)
   End Sub
   Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
       FontDialog1.ShowDialog()
       Label1.Font = FontDialog1.Font
   End Sub

End Class</source>