C# - generic List and ConvertAll() Method, how does it internally work?

Posted by msfanboy on Stack Overflow See other posts from Stack Overflow or by msfanboy
Published on 2010-05-09T21:51:29Z Indexed on 2010/05/09 21:58 UTC
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generic

|

list

|

convertall

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c#

Hello,

from some code I found in Sacha Barbers free mvvm framework chinch I saw this:

return new DispatcherNotifiedObservableCollection<OrderModel>(
                    DataAccess.DataService.FetchAllOrders(
                        CurrentCustomer.CustomerId.DataValue).ConvertAll(
                            new Converter<Order, OrderModel>(
                                  OrderModel.OrderToOrderModel)));

FetchAllOrders returns a List<Order> for a certain customerID. This list is converted to a List<OrderModel> or in other words List<OrderViewModel>.

How can that happen? What must be the requirements/conditions, that every property of the Order object in the List<Order> is converted into a property of the OrderModel ?

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