VB.Net by API/System.Windows.Forms/Keys

Материал из VB Эксперт
Перейти к: навигация, поиск

Keys.Enter

<source lang="vbnet"> 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


 </source>


Keys.F5

<source lang="vbnet"> 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


 </source>