title: how can I show only number format input in UITextField?
body: <p>I am making simple application that will take hotel name and price of item, and I want to show the price in only number format, because it can not be in alphabatical format, so what should I do add in code so that only number will be inputted in the Price UITextField?</p>
  
  <p>If you are not getting my question, you may ask anything again
  I do appreciate if I will get proper way of doing this, </p>