How do I know which column is selected?
What if the selected cell is in a nested grid?
I also can't use Columns.CurrentColumn because it doesn't work for nested grids.

[c#]
//get selected node
NodeBase selected = flyGrid.Selected;
//retreive port contaning node
FlyGridViewPort port = flyGrid.GetPort(selected);
//retreive focused column from columns associated with port
int columnIndex = port.Columns.CurrentColumn;

NodeBase selected = flyGrid.Selected;
FlyGridViewPort viewPort = flyGrid.GetPort(selected);
int viewColumnIndex = viewPort.Columns.CurrentColumn;
Column column = viewPort.Columns.GetColumnFromCellIndex(viewColumnIndex);
return column.CurrentValue.ToString();