WPF DataGrid, application crash when adding a row

Question

I have a wpf datagrid bound to a TrackableCollection. In some rare occations, and for only a few selected users, the application will crash when the user adds a new record by en

Answer 1

No need for converters or for using a derived class. Just make sure that the property you are binding to for SelectedItem is initialized with DependencyProperty.UnsetValue. Do not set it to or leave it at the default of null.

The underlying bug should be fixed in the not-too-far future, btw: https://developercommunity.visualstudio.com/content/problem/575165/vs-1604-ide-crash-argumentnullexception.html