title: How to save calculated values in MS Access
body: <p>I have a textbox in a form that I created. </p>
  
  <p>I want to add an expression in the textbox's Control Source property.
  I also want to bind the textbox to a field in the table using Control Source propety of the textbox.</p>
  
  <p>Is there any way I can add a field name and an expression in the control source property of a particular textbox?</p>
  
  <p>The expression basically adds up couple of numbers and displays the output in that textbox. And I want the output to be stored in a field in the table.</p>