Visual Basic Controls and Events

Module Program
    Sub Main()
        Application.Run(New FormRadio())
    End Sub
End Module

Public Class FormRadio
   Dim radiobtns As New List(Of RadioButton)
   Dim chkOpt As Integer = 0

   ' Create and manage radioButton options
   Private Sub InitializeComponent()
       radiobtns.AddRange({RadioButton1, RadioButton2, RadioButton3})
       For Each rbtn In radiobtns
           AddHandler rbtn.CheckedChanged, AddressOf HandleCheckEvents
            Next
   End Sub

   ' Grouping radioButtons and checkboxes together
   Private Sub FormRadio_Load(sender As Object, e As EventArgs) Handles MyBase.Load
       Panel1.Controls.Add(radiobtns)
       Panel1.Controls.Add(radiobtns)
       Panel1.Controls.Add(radiobtns)
   End Sub

   ' Working with checkboxes for user input
   Private Sub CheckBox1_CheckedChanged(sender As Object, e As EventArgs) Handles Checkbox1.CheckedChanged
       If CheckBox1.Checked Then
           Label1.Text = "You checked Box 1."
        Else
           Label1.Text = ""
       End If
   End Sub

   ' Handling events for radioButtons and checkboxes
   Public Sub HandleCheckEvents(sender As RadioButton)
       If sender.Name = "RadioButton2" Then
           chkOption = 1
       End If
       On CheckedChanged(sender, e)
   End Sub

   ' Clean up any resources being used.
   Protected Overrides Sub Dispose(ByVal disposing As Boolean)
       If disposing AndAlso components IsNot Nothing Then
           components.Dispose()
       End If
       MyBase.Dispose(disposing)
   End Sub

End Class

The provided code snippet demonstrates how to use GroupBox, RadioButton, and CheckBox controls in Visual Basic. This example covers creating and managing radio button options, grouping radio buttons and checkboxes together, working with checkboxes for user input, and handling events for radio buttons and checkboxes.

To create and manage radio button options, the code initializes a List of RadioButton controls, adds them to the form, and handles the CheckedChanged event for each radio button. This allows the program to respond when a radio button is checked or unchecked, which is useful for selecting options.

Grouping radio buttons and checkboxes together is achieved by adding the controls to a Panel or other container control. In this example, the radio buttons are added to a Panel control.

Working with checkboxes for user input involves handling the CheckedChanged event, which is triggered when the checkbox state is changed. In the provided code, when the checkbox is checked, the text of a label is updated accordingly.

Handling events for radio buttons and checkboxes is done using the HandleCheckEvents method. This method checks the name of the control that triggered the event and updates a variable accordingly, which can be used later in the program.

Overall, this code snippet showcases how to use various controls in Visual Basic to create interactive user interfaces and respond to user input.