Group box radio buttons

Question

Hi There,

I am trying to get 2 group boxes with radio buttons. I would like to check a radio button in group box 1 and have a corresponding radio button in group set 2 get automatically checked based on what I check in group box1. I am trying to do this in VB. If anyone know how let me know. Also, code to do this would be greatly appreciated.

Thanks,

Bill

Answer 1

You can tie them together like this . You need to add and remove the handlers to avoid an endless loop .


    Private Sub RadioButton1_CheckedChanged( _
    ByVal sender As System.Object, _
    ByVal e As System.EventArgs) _
    Handles RadioButton1.CheckedChanged

        RemoveHandler RadioButton4.CheckedChanged, AddressOf RadioButton4_CheckedChanged
        RadioButton4.Checked = RadioButton1.Checked
        AddHandler RadioButton4.CheckedChanged, AddressOf RadioButton4_CheckedChanged

    End Sub

    Private Sub RadioButton4_CheckedChanged( _
    ByVal sender As System.Object, _
    ByVal e As System.EventArgs) _
    Handles RadioButton4.CheckedChanged

        RemoveHandler RadioButton1.CheckedChanged, AddressOf RadioButton1_CheckedChanged
        RadioButton1.Checked = RadioButton4.Checked
        AddHandler RadioButton1.CheckedChanged, AddressOf RadioButton1_CheckedChanged

    End Sub

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Answer 2

You would just handle the CheckChanged event of each radio button, and in that event if the radiobutton's .checked property is true, then set the cooresponding other radio buttons .checked property to true.

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Matt Kleinwaks - MSMVP MSDN Forums Moderator - www.zerosandtheone.com

Answer 3

I was curious if this would go and it did

    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        RadioButton1.DataBindings.Add("Checked", RadioButton3, "Checked")
        RadioButton2.DataBindings.Add("Checked", RadioButton4, "Checked")
        RadioButton3.DataBindings.Add("Checked", RadioButton1, "Checked")
        RadioButton4.DataBindings.Add("Checked", RadioButton2, "Checked")
    End Sub

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Success
Cor

Answer 4

Use Property Binding  to connect two control properties together.

http://www.vbdotnet.com.nu/linked_control_properties.html

For your case, you will link the checked property of one radio button to the checked property of the other radio buttin by binding the checked property of each radiobutton to the same settings variable.