Structure with constructor in C#

Before some time , I have written basic introduction post about Structure in C#. In this blog post we are going to see how we can have constructor with Structure. As we all know structure is a value type so it stored on stack. So let’s create a structure like follow with constructor.

public struct Customer
{
    #region Fields

    public int CustomerId;
    public string FirstName;
    public string LastName;

    #endregion 

    #region Constructor

    public Customer(int customerId, string firstName, string lastName)
    {
        CustomerId = customerId;
        FirstName = firstName;
        LastName = lastName;
    }

    #endregion
}

Here you can see I have created Stucture with parameter. As we all know structure is a value type so when initialize the it at that time we need to give values to its elements so that’s why default constructor without parameter is not supported in C#.

You can find whole discussion about that at stackoverflow at following link.

http://stackoverflow.com/questions/333829/why-cant-i-define-a-default-constructor-for-a-struct-in-net

Now let’s create a object of structure in our console application like below.

class Program
{
    static void Main(string[] args)
    {
        Customer customer = new Customer(1, "Jalpesh", "Vagdama");

        Console.WriteLine(customer.CustomerId);
        Console.WriteLine(customer.FirstName);
        Console.WriteLine(customer.LastName);
    }
}

Now once you run this application. It will print fields of customer structure as expected.



That’s it. Hope you like it. Stay tune for more!!.

You can find complete examples of all structure related blog post at github on -https://github.com/dotnetjalps/StructureCSharp