topic Re: DataGrid MouseOver in ArcGIS API for Flex Questions

DataGrid MouseOver

GlenReid — Mon, 28 Jul 2014 18:35:20 GMT

I have a DataGrid that displays some information. I'm trying to use a mouseOver event to get some information from the grid:

<s:DataGrid id="indexGrid" width="335" height="162" top="4" dataProvider="{indexList}"

mouseOver="indexGrid_mouseOverHandler(event)" mouseOut="indexGrid_mouseOutHandler(event)">

<s:columns>

<s:ArrayList>

<s:GridColumn headerText="Region" width="175" dataField="REGION"/>

<s:GridColumn headerText="Category" width="75" dataField="CATEGORY"/>

<s:GridColumn headerText="Index" width="80" labelFunction="formatIndex" dataField="RSI"/>

</s:ArrayList>

</s:columns>

</s:DataGrid>

In my event handler, I can get the value of a column, but only with a hardcoded row:

private function indexGrid_mouseOverHandler(event:MouseEvent):void {

trace (event.currentTarget.dataProvider.getItemAt(0).REGION);

trace (event.currentTarget.dataProvider.getItemAt(0).RSI);

trace (event.currentTarget.dataProvider.getItemAt(1).REGION);

trace (event.currentTarget.dataProvider.getItemAt(1).RSI);

}

Anyone know how to get the index of the datagrid row?

RobertScheitlin__GISP — Mon, 28 Jul 2014 18:42:52 GMT

Glen,

Listen to the itemRollOver event instead of mouseOver and the event has a rowIndex property

private function onItemRollOver(event:ListEvent):void
{
    var rowIndex:int = event.rowIndex;
}

GlenReid — Mon, 28 Jul 2014 20:14:41 GMT

Robert,

The datagrid doesn't have the itemRollOver event, but list does....is that what you are referring to?

Thanks,

Glen

RobertScheitlin__GISP — Mon, 28 Jul 2014 20:34:23 GMT

Glen,

Sorry about that. Use gridRollOver and GridRollOut events and event.itemRenderer.data

and you need to check if the itemRenderer exists

if(!event.itemRenderer || !event.itemRenderer.data){
     return;
}