Only one checkbox to be selected

Question

I would like to only have single checkbox selected at a time. My program reads from a textfile and creates checkboxes according to how many \"answers\" there are in the text

Answer 1

Try using an external Bool variable to know when the CheckBox was changed "automatically"

CheckBox checkBox1;
CheckBox checkBox2;
Bool changed = false; //This one
private void checkBox1_CheckedChanged(object sender, EventArgs e)
        {
            if (!changed)
            {
                if (checkBox2.Checked)
                {
                    changed = true;
                    checkBox2.Checked = false;
                }
            }
            else
            {
                changed = false;
            }
        }

        private void checkBox2_CheckedChanged(object sender, EventArgs e)
        {
            if (!changed)
            {
                if (checkBox1.Checked)
                {
                    changed = true;
                    checkBox1.Checked = false;
                }
            }
            else
            {
                changed = false;
            }
        }