title: how to remove <optional> from Soap request
body: <p>I am using SoapUI Pro 4.6.1 for testing my WCF service.
  And my request look like this</p>
  
  <pre><code>&lt;soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:tem="http://tempuri.org/"&gt;
         &lt;soapenv:Header/&gt;
      &lt;soapenv:Body&gt;
    &lt;tem:doPaymentRequest&gt;
       &lt;!--Optional:--&gt;
       &lt;tem:credentials&gt;
          &lt;!--Optional:--&gt;
          &lt;tem:accountId&gt;?&lt;/tem:accountId&gt;
          &lt;!--Optional:--&gt;
          &lt;tem:userName&gt;?&lt;/tem:userName&gt;
          &lt;!--Optional:--&gt;
          &lt;tem:password&gt;?&lt;/tem:password&gt;
       &lt;/tem:credentials&gt;
       &lt;/tem:doPaymentRequest&gt;
  </code></pre>
  
  <p>How to remove  --Optional:--> from SOAP
  I am using message format to wrap my data contract and i am using isRequired attribute for DataContract.</p>