What namespace is list in C#?

A List is one of the generic collection classes in the “System. Collection. Generic” namespace. There are several generic collection classes in the System.

What is list type in C#?

C# – List The List is a collection of strongly typed objects that can be accessed by index and having methods for sorting, searching, and modifying list. It is the generic version of the ArrayList that comes under System.

How do I make a list of strings in C#?

The following code snippet creates a List object from an array of strings.

  1. // Create a List using Range.
  2. string[] authors = { “Mike Gold”, “Don Box”,
  3. “Sundar Lal”, “Neel Beniwal” };
  4. List authorsRange = new List(authors);

How do you check if an item exists in a list C#?

Contains(T) Method is used to check whether an element is in the List or not.

  1. Properties of List: It is different from the arrays.
  2. Return Value: This method returns True if the item is found in the List otherwise returns False.
  3. Output: True.
  4. Output: False.

What is difference between IEnumerable and List in C#?

One important difference between IEnumerable and List (besides one being an interface and the other being a concrete class) is that IEnumerable is read-only and List is not. So if you need the ability to make permanent changes of any kind to your collection (add & remove), you’ll need List.

How do you check if object is in a list?

Use type() to check if an object is a list

  1. a_list = [1, 2, 3]
  2. is_list = type(a_list) == list.
  3. print(is_list)

Do you need a namespace C#?

There is no need to have a namespace. However developer studio expects you to be using a name space. For example, when you choose to add a class to a project developer studio will: Create a file for the class.

What is namespace in .NET framework?

Namespaces are the way to organize . NET Framework Class Library into a logical grouping according to their functionality, usability as well as category they should belong to, or we can say Namespaces are logical grouping of types for the purpose of identification.

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