protected function renderFilterCellContent() { if (is_string($this->filter)) { echo $this->filter; } elseif ($this->filter !== false && $this->grid->filter !== null && $this->name !== null && strpos($this->name, '.') === false) { if (is_array($this->filter)) { echo CHtml::activeDropDownList($this->grid->filter, $this->name, $this->filter, array('id' => false, 'prompt' => '', 'class' => 'form-control')); } elseif ($this->filter === null) { echo CHtml::activeTextField($this->grid->filter, $this->name, array('id' => false, 'class' => 'form-control')); } } else { parent::renderFilterCellContent(); } }