English 中文(简体)
Wrap a IE amountable <T> with an ObservableCollection<T>
原标题:Wrap an IEnumerable<T> with an ObservableCollection<T>

从我的保存人一开始,我就有一个<条码>。 IEvidable<T>。

在“Ctor”或“我的看法”的方法中,我想把我的实体归纳为“。 ObservableCollection<T> as this:

private ObservableCollection<CustomerViewModel> customerViewModels;

public BillingViewModel(IService service)
{
   ...
   IEnumerable<Customer> customers = service.GetCustomers();

   // that will not work because of a different type
   customerViewModels = new ObservableCollection(customers); 

}

你会做些什么?

最佳回答

Assuming you have some sort of conversion from Customer to CustomerViewModel:

customerViewModels = new ObservableCollection<CustomerViewModel>
    (customers.Select(c => ConvertToViewModel(c)));
问题回答

如何将<条码>Customer改为<条码>CustomerViewModel? 或许你们需要这样的东西:

customerViewModels = new ObservableCollection<CustomerViewModel>(
    from c in customers
    select new CustomerViewModel(c)
);




相关问题
WPF convert 2d mouse click into 3d space

I have several geometry meshes in my Viewport3D, these have bounds of (w:1800, h:500, d:25). When a user clicks in the middle of the mesh, I want the Point3D of (900, 500, 25)... How can I achieve ...

Editing a xaml icons or images

Is it possible to edit a xaml icons or images in the expression design or using other tools? Is it possible to import a xaml images (that e.g you have exported) in the expression designer for editing?...

WPF: writing smoke tests using ViewModels

I am considering to write smoke tests for our WPF application. The question that I am faced is: should we use UI automation( or some other technology that creates a UI script), or is it good enough to ...

WPF - MVVM - NHibernate Validation

Im facing a bit of an issue when trying to validate a decimal property on domain object which is bound to a textbox on the view through the viewmodel. I am using NHibernate to decorate my property on ...

How do WPF Markup Extensions raise compile errors?

Certain markup extensions raise compile errors. For example StaticExtension (x:Static) raises a compile error if the referenced class cannot be found. Anyone know the mechanism for this? Is it baked ...

WPF design-time context menu

I am trying to create a custom wpf control, I m wondering how I can add some design-time features. I ve googled and can t seem to get to my goal. So here s my simple question, how can I add an entry ...

How to combine DataTrigger and EventTrigger?

NOTE I have asked the related question (with an accepted answer): How to combine DataTrigger and Trigger? I think I need to combine an EventTrigger and a DataTrigger to achieve what I m after: when ...

热门标签