title: How to add textbox and dropdownlist to checkboxlist?
body: <p>i want to provide a list of ability for user to choose (by checkbox list and the option retrieve from table). if user tick the checkbox, the related textbox and dropdownlist will enable to let user input and choose.</p>
  
  <p>how can i add textbox and dropdownlist to checkboxlist ? thanks.</p>
  
  <p><img src="https://i.stack.imgur.com/BfdNv.png" alt="enter image description here"></p>