Question

I want to adjust the width of DropDownList control in flex 4. I could do it by editing the skinclass and setting the PopupAnchor’s Property “popUpWidthMatchesAnchorWidth” to false, but in my application I have to do it using actionscript.

Answer 1

thanks a lot for all responders. here i give the code which is used to clip the width of the dropdown.

package
{
import spark.components.DropDownList;
import mx.controls.Alert;
import spark.components.PopUpAnchor;
import mx.collections.IList;
import spark.components.ComboBox;

public class customDDList extends DropDownList
{   
    [SkinPart(popUpWidthMatchesAnchorWidth)]  
    public var popUp:PopUpAnchor ; 
    public function customDDList():void
    {
        super();
    }
    override protected function partAdded(partName:String, instance:Object):void 
    {    
        super.partAdded(partName, instance);   
                     if (partName == "popUp")   
        {
            instance.popUpWidthMatchesAnchorWidth = false;

        }

    }
    public override function set dataProvider(value:IList):void
    {
        super.dataProvider = value;
    }
}

}