3

How can I convert IEnumerable<object> to List<IFoo> where each object is an IFoo?

I have an IEnumerable<object>, someCollection, and each item in someCollection is an IFoo instance. How can I convert someCollection into a List<IFoo>? Can I use convert or cast or something instead of looping through and building up a list?

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3 に答える 3

13

LINQ を使用すると、 を使用しCastてアイテムをキャストし、 を使用ToListしてリストを取得できます。

試す：

 IEnumerable<object> someCollection; //Some enumerable of object.
 var list = someCollection.Cast<IFoo>().ToList();
于 2012-06-01T18:56:30.540 に答える
4

Try this:

enumerable.Cast<IFoo>().ToList();
于 2012-06-01T18:56:03.940 に答える
4

someCollection.Cast<IFoo>().ToList()

于 2012-06-01T18:56:15.583 に答える