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Nov 29, 2016 · You can do some workaround here (although i myself don't like it) through this method : public <T> List<T> convert(List list, T t){. return list; } Yes. It will cast your list into your demanded generic type. In the given case above, you can do some code like this : List<Object> list = getList();
Usage example
(List<Customer>)(Object)list;Mar 4, 2009 · list.Cast() casts all items in the original list to type T, and throws an exception for items which cannot be cast to that type. In your case both would give the same result, but using .Cast() would communicate your intent a lot more clearly, so I would recommend using that.
- Both .OfType and .Cast will return a list of T, but the meaning of the two methods is different. list.OfType() filters the original list an...
- List raw = (from i .... select i).ToList(); List result = raw.OfType ().ToList();
- You could also use List.ConvertAll . Documentation: http://msdn.microsoft.com/en-us/library/73fe8cwf.aspx Example: List newList = old...
- Since the list is coming from List list = (from i .... select i).ToList(); Couldn't you just fix the "select i" part to instead return...
- Just in case: I've little C# experience, but if this generic construction means the same thing it does in Java, then you must create a whole new...
- I don't know that a direct cast would have the desired effect. The rare few times I've done this, it's usually something like: List lis...
- ConvertAll seems like a better solution, since it doesn't depend on Linq library and is shorter and more intuitive. But both of them are rather wo...
- I have the following string var str = "2 4 7 8 10"; when I cast as follow var numbersInt2 = numbers.Split(' ') .ToList().Cast
Jan 20, 2012 · Cast will throw an exception if you cannot cast to the type specified. OfType on the other hand will return only those items in the list that can be cast to the specified type. I would recommend using OfType in your situation. List<Foo> fooList = myList.OfType<Foo>().ToList();
Sep 16, 2010 · You could do a few things. One example is cast the elements of the list to Animal. Using your code: cat.Play(new List<Cat>().Cast<Animal>().ToList()); Another is to make Animal generic, so cat.Play(new List<Cat>()); would work.
Jan 19, 2012 · You can't cast it (preserving reference identity) - that would be unsafe. For example: public interface IFruit {} public class Apple : IFruit {} public class Banana : IFruit {} ... List<Apple> apples = new List<Apple>(); List<IFruit> fruit = apples; // Fortunately not allowed. fruit.Add(new Banana());
Jul 14, 2014 · Much of the time an implicit cast will work, assign a LinkedList to a List, or pass it to a function expecting a List and it should just `work'. An explicit cast can also be done if necessary. //This is valid List<Customer> myList = new LinkedList<Customer>(); //Also Valid List<Customer> myList = (List<Customer>) new LinkedList<Customer>();
Oct 22, 2010 · In C# it's possible to cast to List<T> - so if you have: List<Activity> _Activities; List<T> _list; The following will work: _list = _Activities as List<T>; but the translated line with VB.NET which is: _list = TryCast(_Activities, List(Of T)) throws a compilation error.
