protected function createBooleanControl($container, $column, $record)
{
$value = $this->getRecordPropertyValue($column, $record);
$control = new TCheckBox();
$control->setChecked(TPropertyValue::ensureBoolean($value));
$control->setCssClass('boolean-checkbox');
$this->setDefaultProperty($container, $control, $column, $record);
return $control;
}