code: public void setDateTime(String dateTimeString)
      {
  		Date dateTime = null;
  		try	{
              if ((dateTimeString != null) && (dateTimeString.length() > 0))
                  dateTime = dateTimeFormat.parse(dateTimeString);
  		} catch (Exception e)	{
              dateTime = null;
  		}
          this.setDateTime(dateTime);
      }
docs: Validate and set the datetime field on the screen given a datetime string.
  @param dateTime The datetime string