VB.Net by API/System.Windows.Forms/Keys — различия между версиями

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

Текущая версия на 12:51, 26 мая 2010

Keys.Enter

  
Imports System.Windows.Forms
public class ControlKey
   public Shared Sub Main
        Application.Run(New Form1)
   End Sub
End class
Public Class Form1
    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        TextBox1.Text = TextBox1.Text + TextBox2.Text
        TextBox2.Text = ""
    End Sub
    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        TextBox2.Text = ""
    End Sub
    Private Sub TextBox2_KeyDown(ByVal sender As System.Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles TextBox2.KeyDown
        Dim res As MsgBoxResult
        Select Case e.KeyCode
            Case Keys.Escape
                 TextBox2.Text = ""
            Case Keys.Enter
                 TextBox2.Text = ""
            Case Keys.Control
                Select Case e.KeyData
                    Case Keys.A
                        TextBox2.SelectionStart = 0
                        TextBox2.SelectionLength = Len(TextBox2.Text)
                    Case Keys.C
                        Clipboard.SetDataObject(TextBox2.SelectedText)
                    Case Keys.V
                        Dim iData As IDataObject
                        iData = Clipboard.GetDataObject()
                        If (iData.GetDataPresent(DataFormats.Text)) Then
                            TextBox2.SelectedText = iData.GetData(DataFormats.Text)
                        Else
                            MsgBox("Could not retrieve data off the clipboard.")
                        End If
                    Case Keys.X
                        Clipboard.SetDataObject(TextBox2.SelectedText)
                        TextBox2.SelectedText = ""
                End Select
            Case Keys.F1
                Console.WriteLine("F1")
        End Select
    End Sub
End Class

<Global.Microsoft.VisualBasic.rupilerServices.DesignerGenerated()> _
Partial Class Form1
    Inherits System.Windows.Forms.Form
    "Form overrides dispose to clean up the component list.
    <System.Diagnostics.DebuggerNonUserCode()> _
    Protected 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.Button1 = New System.Windows.Forms.Button
        Me.Button2 = New System.Windows.Forms.Button
        Me.Label1 = New System.Windows.Forms.Label
        Me.Label2 = New System.Windows.Forms.Label
        Me.TextBox1 = New System.Windows.Forms.TextBox
        Me.TextBox2 = New System.Windows.Forms.TextBox
        Me.SuspendLayout()
        "
        "Button1
        "
        Me.Button1.Location = New System.Drawing.Point(101, 205)
        Me.Button1.Name = "Button1"
        Me.Button1.Size = New System.Drawing.Size(75, 23)
        Me.Button1.TabIndex = 0
        Me.Button1.Text = "Add"
        Me.Button1.UseVisualStyleBackColor = True
        "
        "Button2
        "
        Me.Button2.Location = New System.Drawing.Point(291, 205)
        Me.Button2.Name = "Button2"
        Me.Button2.Size = New System.Drawing.Size(75, 23)
        Me.Button2.TabIndex = 1
        Me.Button2.Text = "Cancel"
        Me.Button2.UseVisualStyleBackColor = True
        "
        "Label1
        "
        Me.Label1.AutoSize = True
        Me.Label1.Location = New System.Drawing.Point(24, 22)
        Me.Label1.Name = "Label1"
        Me.Label1.Size = New System.Drawing.Size(53, 12)
        Me.Label1.TabIndex = 2
        Me.Label1.Text = "Old"
        "
        "Label2
        "
        Me.Label2.AutoSize = True
        Me.Label2.Location = New System.Drawing.Point(24, 134)
        Me.Label2.Name = "Label2"
        Me.Label2.Size = New System.Drawing.Size(53, 12)
        Me.Label2.TabIndex = 3
        Me.Label2.Text = "New"
        "
        "TextBox1
        "
        Me.TextBox1.Location = New System.Drawing.Point(35, 37)
        Me.TextBox1.Multiline = True
        Me.TextBox1.Name = "TextBox1"
        Me.TextBox1.Size = New System.Drawing.Size(394, 94)
        Me.TextBox1.TabIndex = 4
        "
        "TextBox2
        "
        Me.TextBox2.Location = New System.Drawing.Point(37, 159)
        Me.TextBox2.Name = "TextBox2"
        Me.TextBox2.Size = New System.Drawing.Size(392, 21)
        Me.TextBox2.TabIndex = 5
        "
        "Form1
        "
        Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 12.0!)
        Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
        Me.ClientSize = New System.Drawing.Size(468, 266)
        Me.Controls.Add(Me.TextBox2)
        Me.Controls.Add(Me.TextBox1)
        Me.Controls.Add(Me.Label2)
        Me.Controls.Add(Me.Label1)
        Me.Controls.Add(Me.Button2)
        Me.Controls.Add(Me.Button1)
        Me.Name = "Form1"
        Me.Text = "Form1"
        Me.ResumeLayout(False)
        Me.PerformLayout()
    End Sub
    Friend WithEvents Button1 As System.Windows.Forms.Button
    Friend WithEvents Button2 As System.Windows.Forms.Button
    Friend WithEvents Label1 As System.Windows.Forms.Label
    Friend WithEvents Label2 As System.Windows.Forms.Label
    Friend WithEvents TextBox1 As System.Windows.Forms.TextBox
    Friend WithEvents TextBox2 As System.Windows.Forms.TextBox
End Class


Keys.F5

  
Imports System.Windows.Forms
public class KeysCodeF5
   public Shared Sub Main
        Application.Run(New Form1)
   End Sub
End class

Public Class Form1
    Private Sub Form1_KeyDown(ByVal sender As Object, _
          ByVal e As System.Windows.Forms.KeyEventArgs) _
          Handles Me.KeyDown
        If (e.KeyCode = Keys.F5) Then Console.WriteLine("Form: F5")
        e.Handled = True
    End Sub
    Private Sub TextBox1_KeyDown(ByVal sender As Object, _
          ByVal e As System.Windows.Forms.KeyEventArgs) _
          Handles TextBox1.KeyDown
        If (e.KeyCode = Keys.F5) Then Console.WriteLine("Text: F5")
    End Sub
End Class

<Global.Microsoft.VisualBasic.rupilerServices.DesignerGenerated()> _
Partial Class Form1
    Inherits System.Windows.Forms.Form
    "Form overrides dispose to clean up the component list.
    <System.Diagnostics.DebuggerNonUserCode()> _
    Protected 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.TextBox1 = New System.Windows.Forms.TextBox
        Me.SuspendLayout()
        "
        "TextBox1
        "
        Me.TextBox1.Location = New System.Drawing.Point(16, 16)
        Me.TextBox1.Name = "TextBox1"
        Me.TextBox1.Size = New System.Drawing.Size(328, 20)
        Me.TextBox1.TabIndex = 0
        "
        "Form1
        "
        Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
        Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
        Me.ClientSize = New System.Drawing.Size(385, 162)
        Me.Controls.Add(Me.TextBox1)
        Me.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle
        Me.KeyPreview = True
        Me.MaximizeBox = False
        Me.Name = "Form1"
        Me.Text = "Intercepting Form-level Keys"
        Me.ResumeLayout(False)
        Me.PerformLayout()
    End Sub
    Friend WithEvents TextBox1 As System.Windows.Forms.TextBox
End Class