I'm trying to adopt the source code from here http://flexponential.com/2010/01/31/spark-dropdownlist-equivalent-of-the-html-optgroup-concept/
to disable some items in a drop down list. In the OptgroupDropDownList.as file I'm getting this compile error using the 4.11 SDK: "Method marked override must override another method." on this line of code: override mx_internal function setSelectedIndex(value:int, dispatchChangeEvent:Boolean = false, changeCaret:Boolean = true):void I wonder if anything has changed in the SDK since the original blog posting that gives rise to this error? When I go to mx.core.mx_internal, there's not much code there. If I remove "override" it compiles and runs (interestingly, the similar line of code for overriding setSelectedIndices() doesn't give a compile error), but this doesn't result in the correct functionality (I guess, as expected, without a proper override). Any feedback appreciated.
