如何验证组框中至少一个单选按钮被选中?我正在验证所有文本控件是否像这样正确地填充; If TypeOf ctrl Is TextBox Then MessageBox.Show("Please enter information in " & ctrl.Name, "Error", MessageBoxButtons.OK, M
radio_input1 = widgets.RadioButtons(options=['Option 1', 'Option 2']) # Declare the set of radio buttons(bind_selected_to_output) radio_input1.index=0 selec