Add Button to a form and attach event handler : Button « GUI « VB.Net Tutorial






Add Button to a form and attach event handler
Imports System.Windows.Forms

public class AddButtonAndAddEventHandler
   public Shared Sub Main
        Application.Run(New Form1)
   End Sub
End class


Public Class Form1
    Private Sub ShowTheTime(ByVal sender As System.Object, ByVal e As System.EventArgs)
            Console.WriteLine( Now.ToLongTimeString())

    End Sub

    Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        Dim dynamicButton As Button
        dynamicButton = New Windows.Forms.Button
        dynamicButton.Location = New System.Drawing.Point(144, 32)
        dynamicButton.Size = New System.Drawing.Size(99, 23)
        dynamicButton.Text = "Get Time"
        dynamicButton.UseVisualStyleBackColor = True
        dynamicButton.TabIndex = 1
        Me.Controls.Add(dynamicButton)

        ' ----- Connect the button to an event handler.
        AddHandler dynamicButton.Click, AddressOf ShowTheTime
    End Sub
End Class


<Global.Microsoft.VisualBasic.CompilerServices.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.ComponentModel.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(260, 76)
        Me.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle
        Me.MaximizeBox = False
        Me.Name = "Form1"
        Me.Text = "Dynamic Controls"
        Me.ResumeLayout(False)

    End Sub

End Class








14.3.Button
14.3.1.Button PerformClickButton PerformClick
14.3.2.Button PropertiesButton Properties
14.3.3.Button FlatStyleButton FlatStyle
14.3.4.Button click eventButton click event
14.3.5.Add Button to a form and attach event handlerAdd Button to a form and attach event handler
14.3.6.Owner draw button
14.3.7.Button click event and text changed eventButton click event and text changed event
14.3.8.Button ImageListButton ImageList
14.3.9.Button with background imageButton with background image
14.3.10.Button AnchorButton Anchor
14.3.11.Irregular shape of ButtonIrregular shape of Button