private function applyValue(val:Object):void
    {
      if ((val != null) && (dataProvider != null))
      {
            for (var i : int = 0; i < dataProvider.length; i++)
            {
              //Используем labelField в качестве данных,
              //Не плохо бы добавить и labelFunction
              if( this.labelField != null )
              {
                if( val == dataProvider[i][labelField] )
                {
                  selectedIndex = i;
                    return;
                }
              } else {
                if( val == dataProvider[i].data || val == dataProvider[i].label )
                {
                  selectedIndex = i;
                    return;
                 }
               }    
             }
      }else{
             selectedIndex = -1;
         }
     }


I’m trying to get your combobox modification to do a bidirectional bind with a data model:

public function set value(val:Object) : void {
candidateValue = val;
valueDirty = true;
invalidateProperties();
/*****************************************dispatch here
dispatchEvent(new Event(“changeValue”));
}

/*****************************************bind here
[Bindable(event="changeValue")]
override public function get value():Object {
if (editable)
return text;

var item:Object = selectedItem;
if (item == null || typeof(item) != “object”){
return item;
}
return “data” in item ? item.data : item.label;
}

however, i get the warning: ‘Data binding will not be able to detiect assignments to “value” ‘ regardless. I know the value property is available on the stock combobox, do you know of a way to make the value property bindable again? Thank you immensely.

Which makes me wonder what constitutes an RIA if having to ‘write functions’ is clearly a demerit towards the seal of approval. I suppose I could dust off my old etch-a-sketch and send it on over unless of course you already have the .NET etch-a-sketch in which case you clearly already know everything there is to know.

Thank you so much again,
Victor

Your ComboBox works incorrectly in table — the initial value is not passed.
To overcome this problem you need the following method override:
/* A small override of “set data” in mx.controls. ComboBox */
/* This allows to use value-aware version in DataGrid and List-s */
override public function set data(data:Object):void {
super.data = data;
if (listData && listData is DataGridListData) {
candidateValue = data[DataGridListData(listData).dataField];
valueDirty = true;
}
else if (listData is ListData && ListData(listData).labelField in data) {
candidateValue = data[ListData(listData).labelField];
valueDirty = true;
}
}

=======
Moreover, original mx.controls.ComboBase class has small error in “get value” — as a result, you may not use ComboBox if values are Boolean (namely, Boolean(false) )
Here is the fix:

override public function get value():Object {
if (editable)
return text;

var item:Object = selectedItem;

if (item == null || typeof(item) != “object”)
return item;

return “data” in item ? item.data : item.label;
}

Valery

He calls the method setValue()

I needed to bind a 2-character state code to a combobox to show the full state name, just like your example.

I’m kind of surprised that Flex doesn’t have this built-in, but you made it easy to work with with your component.

Thanks!