LINQ Cast Method

by Online Tutorials Library July 14, 2022

LINQ Cast() Method

In LINQ, Cast operator is used to cast/convert all the elements present in a collection into a specified data type of new collection. In case if we try to cast/convert different types of elements (string/integer) in the collection, then the conversion will fail, and it will throw an exception.

Syntax of LINQ Cast () conversion operator

C# Code

Example of LINQ Cast Conversion Operator

  using System;  using System.Collections;  using System.Collections.Generic;  using System.Linq;  using System.Text;  using System.Threading.Tasks;    namespace ConsoleApp1  {      class Program      {          static void Main(string[] args)          {  //create an object named ‘obj’ of ArrayList               ArrayList obj = new ArrayList();  //assign the values to the object ‘obj’               obj.Add(“USA”);                obj.Add(“Australia”);                obj.Add(“UK”);                obj.Add(“India”);  //Here we are converting the ArrayList object to String type of object and store the result in ‘result’                IEnumerable<string> result = obj.Cast<string>();  //Now with the help of foreach loop we will print the value of result              foreach (var item in result)                {                    Console.WriteLine(item);                }                Console.ReadLine();            }        }  }  

Output:

In the above example, we have an Arraylist where we added a few countries. These countries are a type of Object, and by using Cast operator, we are converting the ArrayList Object to String type object.

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Syntax of LINQ Cast () conversion operator

Example of LINQ Cast Conversion Operator

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