Spark DropDownList width does not fit largest item.

Question

In some, but not all cases, when the first item in a Spark DropDownList is not the longest item, when I click on the list to select an item, it resizes to the size of the first item, and thus the other items if selected are truncated.
Is there a workaround?

Answer 1

At last, I solved the problem of "determining the longest item" by using the idea mentioned in http://stackoverflow.com/questions/4628368/length-of-a-string-in-pixels.
        var format:TextFormat = new TextFormat();
        format.font = myDropDownList.getStyle("font-family"); // since we're working with a css file for the styling
        format.size = myDropDownList.getStyle("font-size");
Then for each item in the DropDownList's dataprovider determine this width:
       textField.text = item.value; // in my case
        var width:int = textField.textWidth;
Once you determined the item with the biggest width, set that one as the DropDownList's typicalItem.