Hi, I'm writing an application in WPF, using the MVVm toolkit and have problems with hooking up the viewmodel and view.

The model is created with ado.net entity framework.

The viewmodel:

public class CustomerViewModel
    {
        private Models.Customer customer;
        //constructor
        private ObservableCollection<Models.Customer> _customer = new ObservableCollection<Models.Customer>();
        public ObservableCollection<Models.Customer> AllCustomers
        {
            get { return _customer; }

        }
        private Models.Customer _selectedItem;
        public Models.Customer SelectedItem
        {
            get { return _selectedItem; }

        }
        public void LoadCustomers()
        {
            List<Models.Customer> list = DataAccessLayer.getcustomers();
            foreach (Models.Customer customer in list)
            {
                this._customer.Add(customer);
            }
            }
        }

And the view (no code behind at the moment):

<UserControl x:Class="Customers.Customer"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
             mc:Ignorable="d" 
             xmlns:vm ="clr-namespace:Customers.ViewModels"
             d:DesignHeight="300" d:DesignWidth="300"
             xmlns:toolkit="http://schemas.microsoft.com/wpf/2008/toolkit" >

    <Grid>
        <toolkit:DataGrid ItemsSource="{Binding AllCustomers}" SelectedItem="{Binding SelectedItem, Mode=TwoWay}" AutoGenerateColumns="True">

        </toolkit:DataGrid>

        <toolkit:DataGrid ItemsSource="{Binding SelectedItem.Orders}">

        </toolkit:DataGrid>



    </Grid>
</UserControl>

And dataaccesslayer class:

 class DataAccessLayer
    {
        public List<Customer> customers = new List<Customer>();

        public static List<Customer> getcustomers()
        {
            entities db = new entities();

            var customers = from c in db.Customer.Include("Orders")
                           select c;
            return customers.ToList();
        }


    }

The problem is that no data is displayed simply because the data context is not set. I tried to do it in a code-behind but is did not work. I would prefer to do it in a xaml file anyway. Another problem is with the SelectedItem binding - the code is never used.

Thanks for help! Regards, EV.