в 16:40, 26 мая 2010

2010-05-26T16:40:30Z

Admin: 1 версия

2010-05-26T12:57:05Z

1 версия

Новая страница

==Add image to Label==

<source lang="vbnet">imports System
imports System.Drawing
imports System.Windows.Forms
public class LabelImage: inherits Form
public sub New()
Size = new Size(300,250)
dim img as Image = Image.FromFile("yourfile.jpg")
dim lblImage as Label = new Label()
lblImage.Parent = me
lblImage.Location = new Point(0, 0)
lblImage.Image = img
lblImage.Anchor = AnchorStyles.Top or AnchorStyles.Right
lblImage.Size = new Size(img.Width, img.Height)
end sub
public shared sub Main()
Application.Run(new LabelImage())
end sub
end class</source>

==Change Label font==

<source lang="vbnet">Imports System.Windows.Forms
Imports System.Drawing
Imports System.Drawing.Drawing2D
public class CheckBoxEvent
public Shared Sub Main
Application.Run(New FrmCheckBox)
End Sub
End class

Public Class FrmCheckBox
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 chkItalic As System.Windows.Forms.CheckBox
Friend WithEvents lblOutput As System.Windows.Forms.Label
Friend WithEvents chkBold As System.Windows.Forms.CheckBox
"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()
Me.lblOutput = New System.Windows.Forms.Label()
Me.chkItalic = New System.Windows.Forms.CheckBox()
Me.chkBold = New System.Windows.Forms.CheckBox()
Me.SuspendLayout()
"
"lblOutput
"
Me.lblOutput.Font = New System.Drawing.Font("Microsoft Sans Serif", 11.25!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
Me.lblOutput.Location = New System.Drawing.Point(48, 24)
Me.lblOutput.Name = "lblOutput"
Me.lblOutput.Size = New System.Drawing.Size(208, 24)
Me.lblOutput.TabIndex = 0
Me.lblOutput.Text = "Watch the font style change"
"
"chkItalic
"
Me.chkItalic.Font = New System.Drawing.Font("Microsoft Sans Serif", 9.75!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
Me.chkItalic.Location = New System.Drawing.Point(152, 64)
Me.chkItalic.Name = "chkItalic"
Me.chkItalic.Size = New System.Drawing.Size(64, 24)
Me.chkItalic.TabIndex = 2
Me.chkItalic.Text = "Italic"
"
"chkBold
"
Me.chkBold.Font = New System.Drawing.Font("Microsoft Sans Serif", 9.75!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
Me.chkBold.Location = New System.Drawing.Point(80, 64)
Me.chkBold.Name = "chkBold"
Me.chkBold.Size = New System.Drawing.Size(56, 24)
Me.chkBold.TabIndex = 1
Me.chkBold.Text = "Bold"
"
"FrmCheckBox
"
Me.AutoScaleBaseSize = New System.Drawing.Size(6, 14)
Me.ClientSize = New System.Drawing.Size(292, 117)
Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.chkItalic, Me.chkBold, Me.lblOutput})
Me.Font = New System.Drawing.Font("Microsoft Sans Serif", 9!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
Me.Name = "FrmCheckBox"
Me.Text = "CheckBoxTest"
Me.ResumeLayout(False)
End Sub
#End Region
Private Sub chkItalic_CheckedChanged _
(ByVal sender As System.Object, ByVal e As System.EventArgs) _
Handles chkItalic.CheckedChanged
lblOutput.Font = New Font("Microsoft Sans Serif", _
lblOutput.Font.Size, lblOutput.Font.Style Xor FontStyle.Italic)
End Sub
Private Sub chkBold_CheckedChanged _
(ByVal sender As System.Object, ByVal e As System.EventArgs) _
Handles chkBold.CheckedChanged
lblOutput.Font = New Font("Microsoft Sans Serif", _
lblOutput.Font.Size, lblOutput.Font.Style Xor FontStyle.Bold)
End Sub
End Class</source>

==Change Label text and width in Button action==

<source lang="vbnet">Imports System.Windows.Forms
public class LabelWidthTextSettingInButtonAction
public Shared Sub Main
Application.Run(New frmFirstProgram)
End Sub
End class
Public Class frmFirstProgram
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.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.
Friend WithEvents lblName As System.Windows.Forms.Label
Friend WithEvents btnChange As System.Windows.Forms.Button
Friend WithEvents btnExit As System.Windows.Forms.Button
<System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
Me.lblName = New System.Windows.Forms.Label()
Me.btnChange = New System.Windows.Forms.Button()
Me.btnExit = New System.Windows.Forms.Button()
Me.SuspendLayout()
"
"lblName
"
Me.lblName.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D
Me.lblName.Location = New System.Drawing.Point(16, 16)
Me.lblName.Name = "lblName"
Me.lblName.Size = New System.Drawing.Size(104, 24)
Me.lblName.TabIndex = 0
Me.lblName.Text = "test"
Me.lblName.TextAlign = System.Drawing.ContentAlignment.MiddleCenter
"
"btnChange
"
Me.btnChange.Font = New System.Drawing.Font("Microsoft Sans Serif", 8.25!, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
Me.btnChange.Location = New System.Drawing.Point(16, 176)
Me.btnChange.Name = "btnChange"
Me.btnChange.TabIndex = 1
Me.btnChange.Text = "&Change"
"
"btnExit
"
Me.btnExit.Font = New System.Drawing.Font("Microsoft Sans Serif", 8.25!, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
Me.btnExit.Location = New System.Drawing.Point(176, 176)
Me.btnExit.Name = "btnExit"
Me.btnExit.TabIndex = 2
Me.btnExit.Text = "E&xit"
"
"frmFirstProgram
"
Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
Me.ClientSize = New System.Drawing.Size(292, 273)
Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.btnExit, Me.btnChange, Me.lblName})
Me.Name = "frmFirstProgram"
Me.Text = "My First Program"
Me.ResumeLayout(False)
End Sub
#End Region
Private Sub btnChange_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnChange.Click
lblName.Width = 200
lblName.Text = "Some text"
End Sub
Private Sub btnExit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnExit.Click
frmFirstProgram.ActiveForm.Dispose()
End Sub
End Class</source>

==Label mouse click event==

<source lang="vbnet">Imports System.Windows.Forms
public class GenericEventHandler
public Shared Sub Main
Application.Run(New FrmSimple)
End Sub
End class

Public Class FrmSimple
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 " New
" 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 " Dispose
Friend WithEvents lblOutput As System.Windows.Forms.Label
" 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()
Me.lblOutput = New System.Windows.Forms.Label()
Me.SuspendLayout()
"
"lblOutput
"
Me.lblOutput.Location = New System.Drawing.Point(16, 16)
Me.lblOutput.Name = "lblOutput"
Me.lblOutput.Size = New System.Drawing.Size(152, 80)
Me.lblOutput.TabIndex = 0
Me.lblOutput.Text = "Click Me!"
Me.lblOutput.TextAlign = System.Drawing.ContentAlignment.MiddleCenter
"
"FrmSimple
"
Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
Me.ClientSize = New System.Drawing.Size(176, 101)
Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.lblOutput})
Me.Name = "FrmSimple"
Me.Text = "SimpleEventExample"
Me.ResumeLayout(False)
End Sub
#End Region
Private Sub lblOutput_Click(ByVal sender As Object, _
ByVal e As System.EventArgs) Handles lblOutput.Click
MessageBox.Show("Label was clicked")
End Sub
End Class</source>

==Label TextAlign==

<source lang="vbnet">Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
public class TextAlignLabel
public Shared Sub Main
Application.Run(New 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
"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.
Friend WithEvents Label1 As System.Windows.Forms.Label
Friend WithEvents Label2 As System.Windows.Forms.Label
Friend WithEvents Label3 As System.Windows.Forms.Label
Friend WithEvents Label4 As System.Windows.Forms.Label
Friend WithEvents Label5 As System.Windows.Forms.Label
Friend WithEvents Label6 As System.Windows.Forms.Label
Friend WithEvents Label7 As System.Windows.Forms.Label
Friend WithEvents Label8 As System.Windows.Forms.Label
Friend WithEvents Label9 As System.Windows.Forms.Label
Friend WithEvents Label10 As System.Windows.Forms.Label
<System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
Me.Label1 = New System.Windows.Forms.Label
Me.Label2 = New System.Windows.Forms.Label
Me.Label3 = New System.Windows.Forms.Label
Me.Label4 = New System.Windows.Forms.Label
Me.Label5 = New System.Windows.Forms.Label
Me.Label6 = New System.Windows.Forms.Label
Me.Label7 = New System.Windows.Forms.Label
Me.Label8 = New System.Windows.Forms.Label
Me.Label9 = New System.Windows.Forms.Label
Me.Label10 = New System.Windows.Forms.Label
Me.SuspendLayout()
"
"Label1
"
Me.Label1.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle
Me.Label1.Location = New System.Drawing.Point(16, 56)
Me.Label1.Name = "Label1"
Me.Label1.TabIndex = 0
Me.Label1.Text = "Label1"
"
"Label2
"
Me.Label2.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle
Me.Label2.Location = New System.Drawing.Point(136, 56)
Me.Label2.Name = "Label2"
Me.Label2.TabIndex = 1
Me.Label2.Text = "Label2"
Me.Label2.TextAlign = System.Drawing.ContentAlignment.TopCenter
"
"Label3
"
Me.Label3.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle
Me.Label3.Location = New System.Drawing.Point(256, 56)
Me.Label3.Name = "Label3"
Me.Label3.TabIndex = 2
Me.Label3.Text = "Label3"
Me.Label3.TextAlign = System.Drawing.ContentAlignment.TopRight
"
"Label4
"
Me.Label4.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle
Me.Label4.Location = New System.Drawing.Point(16, 112)
Me.Label4.Name = "Label4"
Me.Label4.TabIndex = 3
Me.Label4.Text = "Label4"
Me.Label4.TextAlign = System.Drawing.ContentAlignment.MiddleLeft
"
"Label5
"
Me.Label5.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle
Me.Label5.Location = New System.Drawing.Point(136, 112)
Me.Label5.Name = "Label5"
Me.Label5.TabIndex = 4
Me.Label5.Text = "Label5"
Me.Label5.TextAlign = System.Drawing.ContentAlignment.MiddleCenter
"
"Label6
"
Me.Label6.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle
Me.Label6.Location = New System.Drawing.Point(256, 112)
Me.Label6.Name = "Label6"
Me.Label6.TabIndex = 5
Me.Label6.Text = "Label6"
Me.Label6.TextAlign = System.Drawing.ContentAlignment.MiddleRight
"
"Label7
"
Me.Label7.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle
Me.Label7.Location = New System.Drawing.Point(16, 168)
Me.Label7.Name = "Label7"
Me.Label7.TabIndex = 6
Me.Label7.Text = "Label7"
Me.Label7.TextAlign = System.Drawing.ContentAlignment.BottomLeft
"
"Label8
"
Me.Label8.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle
Me.Label8.Location = New System.Drawing.Point(136, 168)
Me.Label8.Name = "Label8"
Me.Label8.TabIndex = 7
Me.Label8.Text = "Label8"
Me.Label8.TextAlign = System.Drawing.ContentAlignment.BottomCenter
"
"Label9
"
Me.Label9.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle
Me.Label9.Location = New System.Drawing.Point(256, 168)
Me.Label9.Name = "Label9"
Me.Label9.TabIndex = 8
Me.Label9.Text = "Label9"
Me.Label9.TextAlign = System.Drawing.ContentAlignment.BottomRight
"
"Label10
"
Me.Label10.Font = New System.Drawing.Font("Microsoft Sans Serif", 24.0!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
Me.Label10.Location = New System.Drawing.Point(0, 0)
Me.Label10.Name = "Label10"
Me.Label10.Size = New System.Drawing.Size(192, 48)
Me.Label10.TabIndex = 9
Me.Label10.Text = "Labels"
"
"Form1
"
Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
Me.ClientSize = New System.Drawing.Size(376, 229)
Me.Controls.Add(Me.Label10)
Me.Controls.Add(Me.Label9)
Me.Controls.Add(Me.Label8)
Me.Controls.Add(Me.Label7)
Me.Controls.Add(Me.Label6)
Me.Controls.Add(Me.Label5)
Me.Controls.Add(Me.Label4)
Me.Controls.Add(Me.Label3)
Me.Controls.Add(Me.Label2)
Me.Controls.Add(Me.Label1)
Me.Name = "Form1"
Me.Text = "Form1"
Me.ResumeLayout(False)
End Sub
#End Region
End Class</source>

==Multiline Label==

<source lang="vbnet">Imports System.Windows.Forms
public class MultilineLabel
public Shared Sub Main
Application.Run(New Form1)
End Sub
End class
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
lblInstructions.Text = "Print this message and either:" & vbCrLf & _
" - Mail it to the recipient" & vbCrLf & _
" - Fax it to the recipient" & vbCrLf & _
" - Throw it away"
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.lblInstructions = New System.Windows.Forms.Label
Me.SuspendLayout()
"
"lblInstructions
"
Me.lblInstructions.AutoSize = True
Me.lblInstructions.Location = New System.Drawing.Point(8, 8)
Me.lblInstructions.Name = "lblInstructions"
Me.lblInstructions.Size = New System.Drawing.Size(67, 13)
Me.lblInstructions.TabIndex = 0
Me.lblInstructions.Text = "lblInstructions"
"
"Form1
"
Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
Me.ClientSize = New System.Drawing.Size(286, 116)
Me.Controls.Add(Me.lblInstructions)
Me.Name = "Form1"
Me.Text = "MultiLineLabel"
Me.ResumeLayout(False)
Me.PerformLayout()
End Sub
Friend WithEvents lblInstructions As System.Windows.Forms.Label
End Class</source>

==Set Label"s ImageList==

<source lang="vbnet">imports System
imports System.Drawing
imports System.Windows.Forms
public class ImageLists : inherits Form
dim imgList as ImageList = new ImageList()
dim lbl as Label
dim lnk as LinkLabel
dim btn as Button
dim nmbrUpDown as NumericUpDown
public sub New()
Size = new Size(300,300)
dim img as Image
dim i as integer
dim arFiles as string() = {"1.ico","2.ico","3.ico","4.ico"}
for i = 0 to arFiles.Length - 1
img = Image.FromFile(arFiles(i))
imgList.Images.Add(img)
next
imgList.ImageSize = new Size(32, 32)
img = Image.FromFile("5.ico")
imgList.Images(imgList.Images.Count - 1) = img
lbl = new Label()
lbl.Parent = me
lbl.Text = "Label"
lbl.Location = new Point(0,0)
lbl.Size = new Size (200,20)
lbl.BorderStyle = BorderStyle.Fixed3D
lbl.ImageList = imgList
lbl.ImageIndex = 0
lbl.ImageAlign = ContentAlignment.MiddleRight
" Create numeric updown to select the image
nmbrUpDown = new NumericUpDown()
nmbrUpDown.Parent = me
nmbrUpDown.Location = new Point(0, 60)
nmbrUpDown.Value = 0
nmbrUpDown.Minimum = 0
nmbrUpDown.Maximum = imgList.Images.Count - 1
nmbrUpDown.Width = 50
nmbrUpDown.ReadOnly = true
AddHandler nmbrUpDown.ValueChanged,AddressOf nmbrUpDown_ValueChanged
end sub
public shared sub Main()
Application.Run(new ImageLists())
end sub
private sub nmbrUpDown_ValueChanged(ByVal sender as object,ByVal e as EventArgs)
dim n as NumericUpDown = CType(sender, NumericUpDown)
lbl.ImageIndex = CType(n.Value, Integer)
end sub
end class</source>

==Use Color dialog to set the Label foreground color==

<source lang="vbnet">Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
public class UseColorDialogToSetLabelForeGroundColor
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 Button1 As System.Windows.Forms.Button
Friend WithEvents ColorDialog1 As System.Windows.Forms.ColorDialog
Friend WithEvents Label1 As System.Windows.Forms.Label
<System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
Me.Button1 = New System.Windows.Forms.Button
Me.ColorDialog1 = New System.Windows.Forms.ColorDialog
Me.Label1 = New System.Windows.Forms.Label
Me.SuspendLayout()
"
"Button1
"
Me.Button1.Location = New System.Drawing.Point(88, 152)
Me.Button1.Name = "Button1"
Me.Button1.Size = New System.Drawing.Size(96, 32)
Me.Button1.TabIndex = 1
Me.Button1.Text = "Change Color"
"
"Label1
"
Me.Label1.Font = New System.Drawing.Font("Microsoft Sans Serif", 27.75!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
Me.Label1.Location = New System.Drawing.Point(72, 24)
Me.Label1.Name = "Label1"
Me.Label1.Size = New System.Drawing.Size(120, 104)
Me.Label1.TabIndex = 2
Me.Label1.Text = "www.vbex.ru"
"
"Form1
"
Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
Me.ClientSize = New System.Drawing.Size(256, 214)
Me.Controls.Add(Me.Label1)
Me.Controls.Add(Me.Button1)
Me.Name = "Form1"
Me.Text = "Color Setting"
Me.ResumeLayout(False)
End Sub
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
ColorDialog1.ShowDialog()
Label1.ForeColor = ColorDialog1.Color
End Sub
End Class</source>

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VB.Net Tutorial/GUI/Label - История изменений

в 16:40, 26 мая 2010

Admin: 1 версия