title: cannot convert datatype from float to string
body: <p>I want to change the value of total price's text box when unit price and quantity is entered.Unit price and total price's data type is float.
  This code show error tht cannot convert int to float
  how i can solve this issue?</p>
  
  <pre><code>Txtbox_quantity_textchanged
  {
  
     TxttotalPrice.text= (a*b).toString();
  
  }
  </code></pre>