title: How to create a display,or similar, method with paramater?
body: <p>in my <em>myForm</em> I call in a <em>tableMY</em> a <strong>displayMethod_fieldA</strong>.</p>
  
  <p>In <em>myForm</em> I insered a some date in a <em>DateEdit</em> and I want to make a selection in table using the entered value. If I crete a <code>displayMethod</code> whit parameter I have an error.</p>
  
  <p>Look like this code I get error:</p>
  
  <pre><code>display myEDTField displayMethod_fieldA (date _dateFromForm)
  {
   tableMY table;
   select table
   where table.item == this.item
   &amp;&amp;    table.dateTable == _dateFromForm;
   return table.valueFieldA;
  }
  </code></pre>
  
  <p>I have an error looklike this:</p>
  
  <blockquote>
    <p>The display method has an incorrect parameter profile.</p>
  </blockquote>
  
  <p>There is another way to display or set the value in my <em>StrinEdit</em> in <em>Grid</em> by method passing a parameter? </p>
  
  <p>In web I saw the method <code>modifier</code> <a href="https://msdn.microsoft.com/en-us/library/aa637541.aspx" rel="nofollow">modifierMothod</a> , but I need some more explanation. I don't know if this method is a right way.</p>