/**
  * Create and setup QListBox lstContactCustomFieldHelper
  * @param string $strControlId optional ControlId to use
  * @param QQCondition $objConditions override the default condition of QQ::All() to the query, itself
  * @param QQClause[] $objOptionalClauses additional optional QQClause object or array of QQClause objects for the query
  * @return QListBox
  */
 public function lstContactCustomFieldHelper_Create($strControlId = null, QQCondition $objCondition = null, $objOptionalClauses = null)
 {
     $this->lstContactCustomFieldHelper = new QListBox($this->objParentObject, $strControlId);
     $this->lstContactCustomFieldHelper->Name = QApplication::Translate('Contact Custom Field Helper');
     $this->lstContactCustomFieldHelper->AddItem(QApplication::Translate('- Select One -'), null);
     // Setup and perform the Query
     if (is_null($objCondition)) {
         $objCondition = QQ::All();
     }
     $objContactCustomFieldHelperCursor = ContactCustomFieldHelper::QueryCursor($objCondition, $objOptionalClauses);
     // Iterate through the Cursor
     while ($objContactCustomFieldHelper = ContactCustomFieldHelper::InstantiateCursor($objContactCustomFieldHelperCursor)) {
         $objListItem = new QListItem($objContactCustomFieldHelper->__toString(), $objContactCustomFieldHelper->ContactId);
         if ($objContactCustomFieldHelper->ContactId == $this->objContact->ContactId) {
             $objListItem->Selected = true;
         }
         $this->lstContactCustomFieldHelper->AddItem($objListItem);
     }
     // Because ContactCustomFieldHelper's ContactCustomFieldHelper is not null, if a value is already selected, it cannot be changed.
     if ($this->lstContactCustomFieldHelper->SelectedValue) {
         $this->lstContactCustomFieldHelper->Enabled = false;
     }
     // Return the QListBox
     return $this->lstContactCustomFieldHelper;
 }