How to get a checked radio button in a groupbox?

Question

I have a lot of radio buttons in a groupbox. Normally I will check each radio button individually using If radiobutton1.Checked = True Then.

But I think

Answer 1

If you add them (Load event for instance) to a List you could use LINQ:

Dim checkedRadioButton as RadioButton
checkedRadioButton = 
    radioButtonList.FirstOrDefault(Function(radioButton) radioButton.Checked))

This should be OK because there is a single one checked at the most.

EDIT Even better: just query the Controls collection of the GroupBox:

Dim checkedRadioButton as RadioButton
checkedRadioButton = 
    groupBox.Controls.OfType(Of RadioButton)().FirstOrDefault(Function(radioButton) radioButton.Checked))

Be aware that this will cause problems if there are no RadioButtons in the Groupbox!