Programmatically adding event handler to array of radio buttons

Question

Trying to add event handlers to radio buttons that are created on user input, looking at this and this as examples.

However I get an error that answerOptions is not an event.

Create the radio buttons

Private answerOptions(n) As RadioButton
...    
Private Sub showQuestion(n As Integer)

For i = 0 To answerOptions.Length - 1
    answerOptions(i) = New RadioButton
    AddHandler answerOptions, AddressOf Me.Radios_Click
    With answerOptions(i)
        ' --------- SET TEXT, LOCATION ETC.
    End With
    Me.Controls.Add(answerOptions(i))
Next
End Sub

Planning on then handling events with

Private Sub Radios_Click(sender As Object, e As EventArgs) Handles answerOptions.checked

End Sub

I want things to happen when the radios are checked. Don't want to use checkboxes as I want to limit one selection at a time.

Zeddy · Accepted Answer · 2012-12-17 02:25:45Z

1

Try this in your form or page

    Private Sub ClickButton(ByVal sender As System.Object, ByVal e As System.EventArgs)
    Dim Rbtn As RadioButton
    Rbtn = CType(sender, RadioButton)
    MsgBox(Rbtn.Text)
End Sub

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

    Dim i As Integer
    Dim Rbtn As New RadioButton()

    For i = 0 To 19
        Rbtn = New RadioButton()
        With Rbtn
            .Name = "RBtn" & i
            .Text = .Name
            .Checked = False
            .Left = 20
            .Top = (i * 20)
            .Visible = True
            Me.Controls.Add(Rbtn)
            AddHandler Rbtn.Click, AddressOf ClickButton
        End With
    Next

End Sub

answered Dec 17, 2012 at 2:25

Zeddy

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