The optimal renderer would subclass UIComponent and not use HBox.
________________________________ From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of letterpigeon Sent: Thursday, January 24, 2008 4:40 PM To: [email protected] Subject: [flexcoders] Custom HeaderRenderer slows down datagrid horizontal scrolling Hi all, I have a custom header renderer being used by every column in my datagrid (about 20-30 columns). With this header renderer being used, scrolling the grid horizontally is slowed down significantly. Below is the relevant code to define the renderer. Any suggestion of how to speed things up? (I can't remove the Canvas layer even though it only contains a HBox due to other reason). Should I be writing the header renderer in a different manner? Any good example of a high performed header renderer anyone is willing to share? Any help would be greatly appreciated. Regards, Ban <mx:Canvas> <mx:HBox id="hbox" name="{data.headerText}" paddingTop="0" width="100%" height="100%" horizontalScrollPolicy="off" verticalScrollPolicy="off" textAlign="left"> <mx:Label id="headerLabel" text="{StringUtil.trim(data.headerText)}" paddingRight="0"/> <mx:LinkButton icon="@Embed(source='/datagrid/assets/filter.gif')" mouseDown="toggleFilter(event)" visible="{!(filterType is NoFilter)}" paddingLeft="0" paddingRight="0"/> <mx:LinkButton id="statButton" visible="{dataGrid.filterControls[fieldName].filterApplied}" paddingRight="0" icon="@Embed(source='/datagrid/assets/ico_filter_off.png')" mouseDown="clearFilter(event)"/> </mx:HBox> </mx:Canvas>
