Microsoft just released an update to the Silverlight 2 DataGrid that fixes the following issues:
- Rows containing focus no longer disappear when the ItemsSource changes
- DataGrid Selection is preserved when sorting
- Buttons outside the DataGrid work as expected when they are clicked while the DataGrid is in editing mode
- Improved FrozenColumn behavior
- Improved cell currency
- SelectedItem is updated before the CurrentCellChanged event is raised
- Many more...
Additional details on where to get the update and how to get it installed can be found on Scott Morrison’s blog.