How do I get which radio button is checked from a groupbox?

Question

I have these groupboxes:

I want to run some code according to checked

Answer 1

In my opinion, it's better if you use RadioGroup instead of GroupBox. If you use radioGroup, you can always find the selected item easily like this:

radioGroup.selectedIndex;

If you design using Windows Forms, I suggest to implement RadioGroup behavior like this (please note that my code is in Java):

for (Component comp:groupBox1.components) {
    if (((RadioButton)comp).selected)
        return ((RadioButton)comp).value;
}

You can put this code block in a method to return selected radioButton value, and then you can use this value in your SWITCH part.