Datagrid column text styles

Question

I have a datagrid column that contains strings in this
syntax: ##% (##%)
When the percentages are over 0% I'd like the text to be
green; when the percentages are under 0%, I'd like to change the
text to red. Apart from breaking this into two columns, how can I
change the colors of different strings inside the same datagrid
column?
Thanks,
Tom

Answer 1

Tom,
One way to do this would be to make a custom ItemRenderer
based on a Label for your dataGrid column. Then, just test whether
you have positive or negative values for your dataField. If it is
negative, use a setStyle('color', 0xFF0000) for red. Here is a
basic example:
<?xml version="1.0" encoding="utf-8"?>
<mx:Label xmlns:mx="
http://www.adobe.com/2006/mxml">
<mx:Script>
<![CDATA[
override public function set data(value:Object):void {
super.data = value;
if (value != null)
if(value.fieldValue >= 0) //fieldValue will need to match
your dataField value from your dataProvider of your dataGrid. You
might need to convert it to an int to compare.
setStyle("color", 0x00DD00);
} else {
setStyle("color", 0xDD0000);
super.invalidateDisplayList();
]]>
</mx:Script>
</mx:Label>
Then in your main app:
<mx:DataGridColumn headerText="Drill Type"
dataField="fieldVAlue" width="105"
itemRenderer="renderers.RedGreen"/>
This assumes that your mxml component is named
'RedGreen.mxml' and is in the 'renderers' directory. You can adjust
this to fit your project as needed. I hope this helps.
Vygo