我该怎么办才能选择一个复选框？

Question

How can I do so only one box can be selected at the same time?

foreach (var i in contestlist)
{
    CheckBox cnb = new CheckBox();
    cnb.Text = i.Name;
    cnb.Location = new Point(10, panel1.Controls.Count * 20);
    panel1.Controls.Add(cnb);
}

Answer 1

If you only want one selected then the case is you want to use radiobuttons instead

If you put radio buttons into a groupbox you can make it so only one can be selected within each groupbox