VB.Net/Event/Focus
Focus event Demo: Button lost focus
<source lang="vbnet"> Imports System Imports System.Collections Imports System.ruponentModel Imports System.Windows.Forms Imports System.Data Imports System.Configuration Imports System.Resources Imports System.Drawing Imports System.Drawing.Drawing2D
Public Class MainClass
Shared Sub Main() Dim myform As Form = New Form1() Application.Run(myform) End Sub
End Class Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, _ ByVal e As System.EventArgs) Handles Button1.Click "Display a MessageBox MessageBox.Show("The MouseUp event has been fired.", "Info") End Sub Private Sub Button1_LostFocus(ByVal sender As Object, _ ByVal e As System.EventArgs) Handles Button1.LostFocus "Display a MessageBox MessageBox.Show("Button1 has lost focus.", "Info") 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.Button2 = New System.Windows.Forms.Button Me.Button1 = New System.Windows.Forms.Button Me.SuspendLayout() " "Button2 " Me.Button2.Location = New System.Drawing.Point(136, 33) Me.Button2.Name = "Button2" Me.Button2.Size = New System.Drawing.Size(93, 23) Me.Button2.TabIndex = 3 Me.Button2.Text = "Button2" " "Button1 " Me.Button1.Location = New System.Drawing.Point(24, 33) Me.Button1.Name = "Button1" Me.Button1.Size = New System.Drawing.Size(93, 23) Me.Button1.TabIndex = 2 Me.Button1.Text = "Mouse Events" " "Form1 " Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!) Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font Me.ClientSize = New System.Drawing.Size(253, 89) Me.Controls.Add(Me.Button2) Me.Controls.Add(Me.Button1) Me.Name = "Form1" Me.Text = "Form1" Me.ResumeLayout(False) End Sub Friend WithEvents Button2 As System.Windows.Forms.Button Friend WithEvents Button1 As System.Windows.Forms.Button
End Class
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