Well, if you need only to get a formatted string out of the provided data object, try using either formatter [1] have a look at the part about *Using a data formatter in a column*, or labelFunction [2] a for particular column. The provided example is a bit more on the complex side, but have a look at label functions and how they are used.
Otherwise the code seems to be ok, at least the part you posted, but I might have missed something. [1] http://livedocs.adobe.com/flex/3/html/help.html?content=advdatagrid_04.html [2] http://cookbooks.adobe.com/post_Formatting_summary_data_in_an_Advanced_Datagrid-11471.html On Fri, Jun 7, 2013 at 5:06 PM, <[email protected]> wrote: > Hi Experts, > > I'm trying to create a Flex 4.5.1 app using an AdvancedDataGrid with a > column itemRenderer. See the code snippets below for the application and > item renderer. > > The problem I see is when I debug and place a break point inside > myItemRenderer.mxml located in either of the two places shown below, the > values for variables "value" and "data" are null. > > I'm not trying to do anything unusual here (guessing it should be textbook > implementation). > > The only info I can find on ADG using item renderers, does not include > where the columns are defined in mxml: > > http://help.adobe.com/en_US/flex/using/WS2db454920e96a9e51e63e3d11c0bf69084-7bf2.html > > So I suspect the column item renderers for ADG behave similar to regular > mx or spark DataGrid. But don't I have to use an > mx:AdvancedDataGridItemRenderer when I build the item renderer component? > > How do I connect the item renderer to the ADG column so I can format the > column data using my function: formatMyData()? > > Any help to straighten me out would be much appreciated. Thanks in advance > for any comments. > > > ----------- CODE SNIPPETS-------------- > > ********** Application ********* > > <mx:AdvancedDataGrid id="myGrid" ... > > <mx:columns> > <mx:AdvancedDataGridColumn id="c0" headerText="" > dataField="label"/> > <mx:AdvancedDataGridColumn id="c1" dataField="Name" > itemRenderer="com.mycompany.myItemRenderer"/> > </mx:columns> > ... data provider and other stuff not shown here... > </mx:AdvancedDataGrid> > > > ********* myItemRenderer.mxml ********* > > <mx:AdvancedDataGridItemRenderer > xmlns:fx="http://ns.adobe.com/mxml/2009"; > xmlns:s="library://ns.adobe.com/flex/spark" > xmlns:mx="library://ns.adobe.com/flex/mx"> > > <fx:Script> > <![CDATA[ > > import mx.controls.AdvancedDataGrid; > > override public function set data(value:Object):void { > super.data=value; // BREAKPOINT 1, where I see value=null > } > > override public function validateProperties():void { > super.validateProperties(); > text=formatFn(data); // BREAKPOINT 2, where I see data=null > } > > private function formatMyData(data:Object):String { > var returnedData:String; > ... do various formatting here ... > return returnedData; > } > > ]]> > </fx:Script> > </mx:AdvancedDataGridItemRenderer> > -- Martin Miko
