Why is parameter less constructor not allowed in Struct in C#?

In C#, structs cannot have parameterless constructors. Unlike classes, which automatically have a parameterless constructor if you don't provide one explicitly, structs in C# do not have this behavior. This is because structs are value types and have different initialization and assignment semantics compared to classes, which are reference types.

When you create a struct in C#, you can't have a constructor without parameters, and you can't have a parameterless constructor. If you want to initialize a struct without providing parameters, you can use the default constructor (which initializes all fields to their default values) or provide a constructor with parameters to initialize the struct's fields during construction.

• Struct may have default constructor which is parameter less.
• But Struct cannot have explicit parameter less constructor.

Here's an example of using a constructor with parameters for a struct in C#:

public struct Point
{
    public int X { get; }
    public int Y { get; }

    public Point(int x, int y)
    {
        X = x;
        Y = y;
    }
}

// Usage
var point = new Point(10, 20);

In this example, we have a struct called Point with a constructor that takes two parameters to initialize the X and Y properties of the struct when an instance is created.