C# LINQ and LINQ Methods

Language-Integrated Query (LINQ)
is the name for a set of technologies based on the integration of query capabilities directly into the C# language.

The LINQ provides a clear and consistent way to query objects , relational databases and XML.

Contents

1. LINQ Methods
   • Any

There are two ways of expressing LINQ:

1. Query Syntax: is similar to structured query language(SQL) for databases.

It begins with From keyword and ends with Select or Group By clause.

2.Method /fluent syntax: Comprises of extension methods and lamba expressions . The extension Methods are included in the Enumerable and Queryable classes.

The query syntax is converted to method syntax at compile time.

Note :

LINQ does not directly modify data it provides a way to query and transform data such as filtering, sorting, and ordering.

This article will focus on using method syntax.

LINQ Methods

There are several LINQ Methods:

1.Any()

This type determines whether the defined collection contains any of the elements defined and returns a boolean. True if any of the elements pass the test otherwise false.

Example 1:list of Names.

using System;
using System.Collections.Generic;
using System.Linq;

public class LinQ
{
    public static void Main()
    {
        IList<string> Names = new List<string> { "John", "James", "Kevin", "Joan" };

        var isNameContainsJohn = Names.Any(name => name == "John");
        var isNames  = Names.Any();
        Console.WriteLine($" Name contains John -> {isNameContainsJohn}");
        Console.WriteLine($"Does Names Contain any Elements -> {isNames}");
    }
}

Output: 
 > Name contains John -> True
 > Does Names Contain any Elements -> True

Example 2: List of Numbers

using System;
using System.Collections.Generic;
using System.Linq;

public class LinQ
{
    public static void Main()
    {


        IList<int> Numbers = new List<int>{1,2,4,5,6,7};
        var isAnyNumberGreaterThan10 = Numbers.Any(Num => Num>10);
        Console.WriteLine($"Is Any NumberGreaterThan10 -> {isAnyNumberGreaterThan10}");



    }
}

OutPut:
>Is Any NumberGreaterThan10 -> False

Your feedback on how I can make this article even better/more helpful is most appreciated!

Thank you for reading❤️️