[flexcoders] dataTipFunction on DataGridColumn with custom itemRenderer?

[Todd Breiholz]

Is it just me, or is it not possible to set a dataTipFunction on a
DataGridColumn that uses a custom itemRenderer?

I have the following DataGridColumn defined:


<mx:DataGridColumn headerText="Days" dataField="daysOfWeek"
sortable="false" editable="false"
itemRenderer="com.meredith.newmedia.bhgdesktop.view.admin.blogDaysIcon"
width="40" showDataTips="true" dataTipFunction="showDaysToolTip"/>

And my function is defined like this:

                public function showDaysToolTip(obj:Object): String {
                        trace("in showDaysToolTip");
                        return "testing";
                }

But this is never getting called.

Am I doing something unsupported?

Thanks!

Todd