How to sort object array by specific property in C#?

 

How to sort object array by specific property in C#?

In C#, sorting an object array by a specific property is a common task that is often required in software development. In this blog, we will explore how to sort an object array by a specific property in C#.

Understanding Sorting an Object Array by Specific Property in C#:

Sorting an object array by a specific property in C# involves using the Array.Sort() method, which sorts the elements of the array based on the values of the specified property. Here's an example:

public class Person

{

    public string Name { get; set; }

    public int Age { get; set; }

}

Person[] people = new Person[]

{

    new Person { Name = "John", Age = 30 },

    new Person { Name = "Mary", Age = 25 },

    new Person { Name = "Bob", Age = 40 }

};

Array.Sort(people, (p1, p2) => p1.Age.CompareTo(p2.Age));

In this example, we have a Person class with Name and Age properties. We also have an array of Person objects called people that we want to sort by age. We are using the Array.Sort() method to sort the people array by the Age property. The lambda expression passed to the Array.Sort() method is used to compare the Age property of two Person objects and return a value indicating their relative order.

Sorting an Object Array in Descending Order:

To sort an object array in descending order, you can reverse the order of the elements in the comparison. Here's an example:

Array.Sort(people, (p1, p2) => p2.Age.CompareTo(p1.Age));

In this example, we are sorting the people array in descending order by comparing the Age property of two Person objects in reverse order.

In this blog, we explored how to sort an object array by a specific property in C# using the Array.Sort() method. We also discussed how to sort an object array in descending order. Sorting an object array by a specific property is a useful feature that can be used in a wide range of applications. By understanding how to sort object arrays in C#, you can improve the performance and usability of your applications.