问题描述
在非Silverlight的世界中,很容易使用LINQ创建ObservableCollection.这是因为ObservableCollection类具有接受任何IEnumerable< T>或List< T>的构造函数.但是,Silverlight版本没有!这意味着代码如下:
In a non-Silverlight world, it is easy to use LINQ to create an ObservableCollection. This is because the ObservableCollection class has constructors that accept any IEnumerable<T> or List<T>. However, the Silverlight version does not! This means that code such as:
var list = (from item in e.Result
select new ViewModel(item)).ToList();
Items = new System.Collections.ObjectModel.ObservableCollection<ViewModel>(list);
在Silverlight中不起作用.
will not work in Silverlight.
除了诉诸for-for语句之外,还有其他选择可以使这项工作吗?
Is there another option to make this work besides resorting to a for-each statement?
推荐答案
如果您使用的是Silverlight 4,那行得通.试试这个:
Well That works if you are using Silverlight 4.try this:
public static class CollectionExtensions
{
public static ObservableCollection<T> ToObservableCollection<T>(this IEnumerable<T> coll)
{
var c = new ObservableCollection<T>();
foreach (var e in coll)
c.Add(e);
return c;
}
}
位于: http://forums.silverlight.net/forums/p/39487/262505.aspx
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