Collection View Source and LINQ to SQL

Question

Hi, I am trying to bind data in my WPF Application using CollectionViewSource and LINQ to SQL. I have the following code in my XAML

<dbml:VendorsDataContext x:Key="vendorAddress1"/>
<CollectionViewSource x:Key="addressViewSource1" Source="{Binding 
           Path = tblVendor_Address ,Source={StaticResource 
                                                  vendorAddress1}}"/>

Where dbml:VendorsDataContext is my dbml file. In the code behind i have written the following code:

addressViewSource.Source = bpo.GetVendorAddrTable(_vendorID);

Where GetVendorAddrTable has the following code:

var addr = from a in vendorsDC.tblVendor_Addresses
         where a.vendorID == _vendorID
         select new BussinessHelper.AddressContacts
             {
              VendorID = a.vendorID,
               Address1 = a.address1,
               Address2 = a.address2,
               City = a.tblVendor_City.cityName,
               State = a.tblVendor_State.stateName,
               Country = a.tblVendor_Country.countryName,
               VendorAddrID = a.vendorAddressID,
               CompleteAddr = a.address1 + 
                         a.address2 + 
                         a.tblVendor_City.cityName + 
                         a.tblVendor_State.stateName + 
                         a.tblVendor_Country.countryName

                       };


            return addr;

When i run my application there is no data being bound.

The CollectionViewSource source is null when i checked with code behind. Any ideas how to correct this?