DataGrid - grid selection is reset when new Data is arrived

Question

I have such DataGrid

Answer 1

The way I've set up a updating lists in the past is:

1. Create an Update method in you object (ConsoleData) that you can pass a copy of that object and the object updates itself. The object also needs to implement INotifyPropertyChanged.

2. In you model_DataArrived method in the ViewModel find all matching objects and use the Update method from step 1 to update the objects.

3. Find all new objects and add them to you list (DataList).

4. Find all missing objects and remove them from you list (DataList).