VB.Net/GUI/Label

Материал из VB Эксперт
Версия от 12:43, 26 мая 2010; Admin (обсуждение | вклад) (1 версия)
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Add a Label to Frame and set its Text

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


Add Image to Label

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


A simple Label event handler

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


Label Border Demo

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


Set Label Value

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