WPF version = .Net 3.5 SP1
OS = XP SP3
exact version of the Telerik product = 2009 Q2 SP1 (2009.2.813.35)
Step by step instructions on how to reproduce erroneous behavior.
1. select cell in RadGridView and the row selector moves to that row and the row is highlighted.
2. edit cell
3. select a cell in a different row and the row selector doesn't move and neither row, previous nor current, are highlighted.
4. select a cell in a different row and the row selector moves to that row and the row is highlighted.
It appears that if a cell is edited it prevents the current row to be set to the row of the next current cell.
For example:
1. Edit cell.
2. Select a cell in a different row.
3. Hit Up arrow on keyboard.
4. The selected row becomes the row above the row selected in step 1.