VB.Net/GUI/Label
Содержание
Add a Label to Frame and set its Text
<source lang="vbnet"> Imports System Imports System.ruponentModel Imports System.Windows.Forms Imports System.Data Imports System.Configuration Imports System.Drawing Imports System.Drawing.Drawing2D Imports System.Drawing.Text Imports System.Globalization Imports System.Text Imports System.Collections Public Class MainClass
Shared Sub Main() Dim myform As Form = New Form1() Application.Run(myform) End Sub
End Class
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load Dim lbl As New Label lbl.SetBounds(10, 50, 100, 25) lbl.Text = "Hello World!" Me.Controls.Add(lbl) 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.SuspendLayout() " "Form1 " Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!) Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font Me.ClientSize = New System.Drawing.Size(292, 273) Me.Name = "Form1" Me.Text = "Form1" Me.ResumeLayout(False) End Sub
End Class
</source>
Add Image to Label
<source lang="vbnet"> Imports System.Windows.Forms Imports System.Drawing Imports System.IO
Module Module1
Sub Main() Application.Run(New Form1) End Sub
End Module
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 Button1 As System.Windows.Forms.Button <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent() Me.Label1 = New System.Windows.Forms.Label() Me.Label2 = New System.Windows.Forms.Label() Me.Button1 = New System.Windows.Forms.Button() Me.SuspendLayout() " "Label1 " Me.Label1.Location = New System.Drawing.Point(20, 30) Me.Label1.Name = "Label1" Me.Label1.Size = New System.Drawing.Size(200, 150) Me.Label1.TabIndex = 0 " "Label2 " Me.Label2.Location = New System.Drawing.Point(20, 200) Me.Label2.Name = "Label2" Me.Label2.Size = New System.Drawing.Size(200, 150) Me.Label2.TabIndex = 1 " "Button1 " Me.Button1.Location = New System.Drawing.Point(280, 72) Me.Button1.Name = "Button1" Me.Button1.TabIndex = 2 Me.Button1.Text = "Done" " "Form1 " Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13) Me.ClientSize = New System.Drawing.Size(408, 381) Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.Button1, Me.Label2, Me.Label1}) Me.Name = "Form1" Me.Text = "LabelImage" Me.ResumeLayout(False) End Sub
- End Region
Public Image1 As Image Public Image2 As Image Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load Image1 = Image.FromFile("figure2.bmp") Label1.Image = Image1 Label2.Image = Image1 End Sub Private Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click Me.Close() End Sub
End Class
</source>
A simple Label event handler
<source lang="vbnet"> Imports System Imports System.Windows.Forms Public Class MainClass
Shared Sub Main() Dim myform As Form = New FrmSimple() Application.Run(myform) End Sub " Main
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
" handler for click event on lblOutput Private Sub lblOutput_Click(ByVal sender As Object, _ ByVal e As System.EventArgs) Handles lblOutput.Click MessageBox.Show("Label was clicked") End Sub " lblOutput_Click
End Class
</source>
Label Border Demo
<source lang="vbnet"> Imports System.Windows.Forms
Module Module1
Sub Main() Application.Run(New Form1) End Sub
End Module
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 <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.SuspendLayout() " "Label1 " Me.Label1.Location = New System.Drawing.Point(30, 30) Me.Label1.Name = "Label1" Me.Label1.Size = New System.Drawing.Size(150, 25) Me.Label1.TabIndex = 0 Me.Label1.Text = "No border" " "Label2 " Me.Label2.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle Me.Label2.Location = New System.Drawing.Point(30, 80) Me.Label2.Name = "Label2" Me.Label2.Size = New System.Drawing.Size(150, 25) Me.Label2.TabIndex = 1 Me.Label2.Text = "Fixed Single Border" " "Label3 " Me.Label3.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D Me.Label3.Location = New System.Drawing.Point(30, 140) Me.Label3.Name = "Label3" Me.Label3.Size = New System.Drawing.Size(150, 25) Me.Label3.TabIndex = 2 Me.Label3.Text = "Fixed 3D Border" " "Form1 " Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13) Me.ClientSize = New System.Drawing.Size(292, 197) Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.Label3, Me.Label2, Me.Label1}) Me.Name = "Form1" Me.Text = "LabelBorders" Me.ResumeLayout(False) End Sub
- End Region
End Class
</source>
Set Label Value
<source lang="vbnet"> Imports System.Windows.Forms
Module Module1
Sub Main() Application.Run(New Form1) End Sub
End Module
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 Button1 As System.Windows.Forms.Button Friend WithEvents Button2 As System.Windows.Forms.Button Friend WithEvents Button3 As System.Windows.Forms.Button Friend WithEvents Label1 As System.Windows.Forms.Label Friend WithEvents Label2 As System.Windows.Forms.Label <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent() Me.Button1 = New System.Windows.Forms.Button() Me.Button2 = New System.Windows.Forms.Button() Me.Button3 = New System.Windows.Forms.Button() Me.Label1 = New System.Windows.Forms.Label() Me.Label2 = New System.Windows.Forms.Label() Me.SuspendLayout() " "Button1 " Me.Button1.Location = New System.Drawing.Point(16, 184) Me.Button1.Name = "Button1" Me.Button1.TabIndex = 0 Me.Button1.Text = "Date" " "Button2 " Me.Button2.Location = New System.Drawing.Point(112, 184) Me.Button2.Name = "Button2" Me.Button2.TabIndex = 1 Me.Button2.Text = "Time" " "Button3 " Me.Button3.Location = New System.Drawing.Point(208, 184) Me.Button3.Name = "Button3" Me.Button3.TabIndex = 2 Me.Button3.Text = "Clear" " "Label1 " Me.Label1.Location = New System.Drawing.Point(30, 40) Me.Label1.Name = "Label1" Me.Label1.Size = New System.Drawing.Size(150, 20) Me.Label1.TabIndex = 3 " "Label2 " Me.Label2.Location = New System.Drawing.Point(30, 90) Me.Label2.Name = "Label2" Me.Label2.Size = New System.Drawing.Size(150, 20) Me.Label2.TabIndex = 4 " "Form1 " Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13) Me.ClientSize = New System.Drawing.Size(304, 269) Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.Label2, Me.Label1, Me.Button3, Me.Button2, Me.Button1}) Me.Name = "Form1" Me.Text = "DynamicLabels" Me.ResumeLayout(False) End Sub
- End Region
Private Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click Label1.Text = "Date: " & Now.Date Label1.Visible = True End Sub Private Sub Button2_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button2.Click Label2.Text = "Time: " & Now.TimeOfDay.ToString() Label2.Visible = True End Sub Private Sub Button3_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button3.Click Label1.Visible = False Label2.Visible = False End Sub
End Class
</source>