I call EditItem(), make my changes and then call CommitEdit(). Although the documentation says "That's it - the RadGridView will show the updated data immediately.", that doesn't seem to work for me. The change only appears when I enter edit mode in the grid by double-clicking the cell.
I've created a small project to demonstrate my issue.
When I click "Change", nothing is changed in the grid until I double-click the second column of the first row.
Note that this is just an example. In my full application, I use MVVM and did try to "RaisePropertyChange".