apply htmlText to ComboBox in Animate CC

I can handle  dropdown part using cell renderer, but not able to change the top selection part(combobox.textfield) to display HTML text. Is there any way to solve this problem?

myComboBox.addItem({label:t1.text});

myComboBox.addItem({label:t2.text});

myComboBox.addItem({label:t3.text});

myComboBox.addItem({label:t4.text});

myComboBox.dropdown.rowHeight = 40;

myComboBox.dropdown.setStyle("cellRenderer", dropDownCellRenderer);

addChild(myComboBox);

package {

import fl.controls.listClasses.CellRenderer;

public class dropDownCellRenderer extends CellRenderer {

     public function dropDownCellRenderer() {

          // constructor code

     }

     override protected function drawLayout():void {

          textField.htmlText = this.label;

          super.drawLayout();

     }

}

}

Regards,

Rikun Patel