VB.Net/GUI/Form Event

Материал из VB Эксперт
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Form Resize and Load Event Handler

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 PageUnitsForm()
        Application.Run(myform)
    End Sub
End Class

Public Class PageUnitsForm
    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 statusBar1 As System.Windows.Forms.StatusBar
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.statusBar1 = New System.Windows.Forms.StatusBar()
        Me.SuspendLayout()
        "
        "statusBar1
        "
        Me.statusBar1.Location = New System.Drawing.Point(0, 244)
        Me.statusBar1.Name = "statusBar1"
        Me.statusBar1.Size = New System.Drawing.Size(292, 22)
        Me.statusBar1.TabIndex = 1
        Me.statusBar1.Text = "statusBar1"
        "
        "PageUnitsForm
        "
        Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
        Me.ClientSize = New System.Drawing.Size(292, 266)
        Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.statusBar1})
        Me.Name = "PageUnitsForm"
        Me.Text = "PageUnitsForm"
        Me.ResumeLayout(False)
    End Sub
#End Region
    Sub ShowClientSize()
        Dim g As Graphics = Me.CreateGraphics()
        g.PageUnit = GraphicsUnit.Inch
        g.PageScale = 1
        Dim bottomRight As PointF() = New PointF() {New PointF(Me.ClientSize.Width, Me.ClientSize.Height)}
        g.TransformPoints(CoordinateSpace.Page, CoordinateSpace.Device, bottomRight)
        statusBar1.Text = String.Format("ClientSize= {0} pixels, {1} inches", Me.ClientSize, bottomRight(0))
    End Sub
    Private Sub PageUnitsForm_Resize(ByVal sender As Object, ByVal e As System.EventArgs) Handles MyBase.Resize
        ShowClientSize()
    End Sub
    Private Sub PageUnitsForm_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles MyBase.Load
        ShowClientSize()
    End Sub
End Class


React to Frame ReSize Event

Imports System
Imports System.Windows.Forms
Imports System.Drawing.Text
Imports System.Drawing
Imports System.Drawing.Drawing2D
Public Class MainClass
    
    Shared Sub Main(ByVal args As String())
        Dim myform As Form = New Form1()
        Application.Run(myform)
    End Sub
End Class

Public Class Form1
    Private Sub Form1_Paint(ByVal sender As Object, _
     ByVal e As System.Windows.Forms.PaintEventArgs) Handles MyBase.Paint
        DrawGraphics(e.Graphics)
    End Sub
    Private Sub Form1_Resize(ByVal sender As Object, _
     ByVal e As System.EventArgs) Handles MyBase.Resize
        DrawGraphics(Me.CreateGraphics())
    End Sub
    Private Sub DrawGraphics(ByVal gr As Graphics)
        gr.Clear(Me.BackColor)
        gr.DrawLine(Pens.Black, 0, 0, _
            Me.ClientSize.Width - 1, _
            Me.ClientSize.Height - 1)
        gr.DrawLine(Pens.Black, _
            Me.ClientSize.Width - 1, 0, _
            0, Me.ClientSize.Height - 1)
    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(564, 209)
        Me.Name = "Form1"
        Me.Text = "Title"
        Me.ResumeLayout(False)
    End Sub
End Class