A common scenario in my company's applications is to have a "tree-like" grid. We achieved this perfectly in our WinForms apps with the infragistics UltraGrid using hierarchical data binding, but I am having trouble reproducing it with the XamDataGrid.

The WinForms grid had a HeaderPlacement property that allows you to set it to "HeaderPlacement.OncePerRowIsland". Not only did this cause there to only be a single header at the very top of the grid, but it would also align the columns across all bands, even when resizing.

Is there any way to acheive this functionality with the XamDataGrid? I know you can hide the headers on every band but the top one, but this doesn't achieve the alignment of columns across bands which I need.