Is there any way to merge cells (vertically and/or horizontally) in a datagrid? At least, for example, is there a way to show that certain datagridcolumns belong to one grou
This should create a Split Header according to Alex Harui:
http://blogs.adobe.com/aharui/2007/03/thinking_about_item_renderers_1.html
http://blogs.adobe.com/aharui/SplitColumns/dg.swf
Similarly, instead of trying to merge two cells horizontally: try splitting one cell into two cells using and itemRenderer for the dataGridColumn.