Grouping and Row Details for DataGrid

Hi every 1

Please i'm new with WPF, i have DB with 2 tables (Customers_details,Customers_Activities) and i want my WPF (vb.net) app datagrid to do the following :

1- show the customers details with group the customers names.
2- second datagrid for the first datagrid as row details template to show the Customer activities.

is it possible to make something like this ??