I'm facing here really annoying issue when trying to embed custom font in AdvancedDataGridItemRenderer.
After some research I found this solution: http://www.webappsolution.com/wordpress/2011/01/20/getting-spark-mx-components-to-use-embedded-fonts/.
Somehow, and I guess it's because I'm using custom mx AdvancedDataGridItemRenderer, which overrids the fontFamily styling property, and I cannot see the embedded font.
Just figured....
First of all some sharing, In order to embed my custom font for spark as well for mx components I used:
This is works for most mx components.
Now, we are using mx components AdvancedDatagrid and AdvancedDataGridItemRenderer (not MXAdvancedDataGridItemRenderer Which is actually a spark component).
In that case I had to change my CustomAdvancedDataGridItemRenderer to extends FTEAdvancedDataGridItemRenderer instead of just AdvancedDataGridItemRenderer.
Which solve the problem! Hurrah!