RTL Direction in DataGrid columns with Gumbo

[FONT=verdana]Hi everybody[/FONT]
[FONT=verdana]I have a datagrid, that I want to set it’s columns with “Right-to-Left” Direction.[/FONT]
[FONT=verdana]But I think that I can’t use a spark tag in mx one. my code is here:[/FONT]

[COLOR=#3366ff][FONT=verdana]<mx: DataGridColumn headerText=“SomeName” dataField=“SomeName”>
<mx:itemRenderer>
[/FONT][/COLOR][COLOR=#3366ff][FONT=verdana] <fx:Component>
[/FONT][/COLOR][COLOR=#3366ff][FONT=verdana] <s:RichText>
[/FONT][/COLOR][COLOR=#3366ff][FONT=verdana] <s:TextFlow direction=“rtl”>[/FONT][/COLOR][COLOR=#3366ff][FONT=verdana]The RTL Text</s:TextFlow>
[/FONT][/COLOR][COLOR=#3366ff][FONT=verdana]</s:RichText>
[/FONT][/COLOR][COLOR=#3366ff][FONT=verdana] </fx:Component>
[/FONT][/COLOR][COLOR=#3366ff][FONT=verdana] </mx:itemRenderer>
</mx: DataGridColumn>[/FONT][/COLOR]
[FONT=verdana]
[/FONT][FONT=verdana]and I have this error:[/FONT]
[COLOR=#ff0000][FONT=verdana]Error #1034: Type Coercion failed: cannot convert WST_inlineComponent1@1a3030a1 to mx.controls.listClasses.IListItemRenderer[/FONT][/COLOR]
[FONT=verdana]
[/FONT][FONT=verdana]Can someone help me please…[/FONT]
[FONT=verdana]TanQ[/FONT]