The method asynchronously parsit users from the site and enters the List<User> Users; list List<User> Users; .
This list is bound to the table <DataGrid ItemsSource="{Binding Users}" />
If scrolling the table with the results during the parsing results in an exception:
The ItemsControl object does not match its source of items.
Why is this happening?
The problem solved this answer https://stackoverflow.com/a/12881558/6641468