How to remember selected record in DataGrid?

Question

WPF

Hello. Such is the question. I work with WPF and MVVM. How can I, after updating the collection, select the entry that was selected in the DataGrid (that is, SelectedIndex)?

Answer 1

Solution, if the object that was selected remains in the collection:
1. add the SelectedItem property to the ViewModel (with INPC);
2. before updating the collection, remember it, after updating the collection - set the stored value into it;
3. in the DataGrid, add the binding of the selected grid element to the ViewModel property
SelectedItem="{Binding SelectedItem Mode=TwoWay}"