title: How to remove duplicate from any textbox
body: <p>Simple question for help my friend. How to remove duplicates from a Text, like Textbox1.text = 1,1,0,2,4,7,9,11,13,2,4 (It is not a linebox textbox.)</p>
  
  <p>Also how can I arrange the string in order from the lowest to the highest?</p>