I have a datagrid with header renderer as well. The headertext in the datagrid was not displaying. If i remove the itemRenderer then it is displaying the text. Is there anything related with headerText and HeaderRenderer. It is working in Flex3. But it is not working in Flashbuilder4. Help me very urgent.
You can try creating a new Spark MXDataGridItemRenderer component and upgrade your header-renderer to this type of component.
Alternatively, you can share what your current header-renderer looks like, so it would be easier to help you.