What is the difference between List and IList in C#?
What is the difference between List and IList in C#?
The main difference between List and IList in C# is that List is a class that represents a list of objects which can be accessed by index while IList is an interface that represents a collection of objects which can be accessed by index.
Does list implement IList?
I believe List implements a version of IList because it is trivial to do, and may be useful, as you wouldn’t need to wrap your list in another to pass it into another class. However it does do a type-check on any items you attempt to add and will throw if they don’t match.
What is the difference between ICollection and IList?
The main difference between the IList and ICollection interfaces is that IList allows you to access elements via an index. IList describes array-like types. Elements in an ICollection can only be accessed through enumeration. Both allow the insertion and deletion of elements.
What is IList?
IList is for when you want to create your own, special sub-class that implements List. Another difference is: IList is an Interface and cannot be instantiated. List is a class and can be instantiated. It means: IList MyList = new IList(); List MyList = new List
How to cast IList to list in Java?
you need to initialize the object like List first, then you can cast IList to List. You can use a constructor of the List type, just pass the IList into a constructor of List. NOTE: I have made the assumption you’re using the generic IList and List types.
What is the best way to implement IList in Type2 9?
2 9 it’s best to program against the interface (IList) instead of the implimentation (List). It’s an unneeded cast to go to List. You now have to add error handling if on the off chance an implementation of IList, which is not a List, enteres that code path.
Do I have to add error handling to IList?
You now have to add error handling if on the off chance an implementation of IList, which is not a List, enteres that code path. – Brian Leahy Feb 5 ’10 at 14:35
What does the t mean in an IList?
The T is the type of your object. In case this is object or unknown, or your IList is not generic, you may use the following: Be sure to have a using System.Linq included in the latter case. Thanks for posting in the MSDN forum. There is a sample.
