[flexcoders] Re: This is not as easy as it seems ... apparently...

[Craig]

I GIVE UP!! I have tried everything!!.. I have a dataGrid that binds to
an ArrayCollection.  I need to change the value of one columen (Profit)
based on the value of another column (Kind) ie.. the results (either
'LONG' or SHORT').  Here is where I'm at.  I've tried putting code into
customer DataGridColumns and labelFunctions and ItemRenderers... but can
not do it.  What seem to be working most are events in the DataGrid
Component, better than others, but comparing values in a DataGrid is
obviously impossible.

Somehow I need the code to access ArrayCollection getItemat() but I
can't do it!

Please help!

<mx:DataGrid xmlns:mx="http://www.adobe.com/2006/mxml";
         initialize="initTA()">

             <positions:KindColumn id="Kind"
                 headerText="Kind"
                 dataField="Kind"
                 itemRenderer="com.steury.baseClasses.CellFieldTrd"/>
             <positions:ProfitColumn id="Profit"
                 headerText="Profit"/>

     <mx:Script>
         <![CDATA[
         import mx.collections.ArrayCollection;
         import com.steury.baseClasses.*;
         import mx.core.Application;
         import mx.controls.dataGridClasses.DataGridListData;
         import flash.events.Event;
         import mx.core.ClassFactory;
         import com.steury.controls.positions.*;
         import mx.controls.dataGridClasses.DataGridColumn;
         import mx.controls.DataGrid;

         private function initTA():String {
             if (value[Kind.dataField]=="LONG")Profit.dataField="Profit";
             if
(value[Kind.dataField]=="SHORT")Profit.dataField="ShProfit";
             Profit.itemRenderer=new
ClassFactory(com.steury.baseClasses.CellFieldInt);
             return myDec.format(Profit)+"%";
             }








--- In flexcoders@yahoogroups.com, "Craig" <cra...@...> wrote:
>
> I am trying to access the value of a DataGridColumn and change the
> DataField for another column based on this value...
> Here is my code:
>
> <?xml version="1.0" encoding="utf-8"?>
> <mx:DataGrid xmlns:mx="http://www.adobe.com/2006/mxml";
>               creationComplete="getDp()" >
>
> ... Datagrid>
>         <mx:columns>
>              <mx:DataGridColumn dataField="Ticker"
>                   headerText="Ticker"/>
>              <mx:DataGridColumn id="Kind"
>                  dataField="Kind"
> itemRenderer="com.steury.baseClasses.CellFieldTrd" />
>              <mx:DataGridColumn id="Profit"
>                  headerText="Profit"/>
>
> ActionScript:
>
> private function getDp():void  {
>
if(Application.application.CnvPos.dgOrdExt.selectedItem.Kind=="LONG")Pro\
\
>
fit.dataField="Profit";Application.application.CnvPos.dgOrdExt.refresh()\
\
> ;
> }
>
>
> //This code works find if I use
>
> if(Kind.DataField="Kind")Profit.dataField="Profit";
>
> //above to test the rest of the code.
>
> I can not figure out how to access the value of the Datagridcolumn.  I
> have tied using event listeners, etc.. which did not work.  Please let
> me know if anyone can help this fairly simple dilemma.
>