Using parentheses with object initializers

public class ClassWithDefaultConstructor

{

    public string Property { get; set; }

}

public class ClassWithConstructorWithParameters

{

    public ClassWithConstructorWithParameters(string property)

    {

        this.Property = property;

    }

    public string Property { get; set; }

}

   

Correct usages -

var c = new ClassWithDefaultConstructor { Property = "value" };

var c = new ClassWithDefaultConstructor() { Property = "value" };

var c = new ClassWithConstructorWithParameters() { Property = "value" };

 

Wrong usage -

var c = new ClassWithConstructorWithParameters { Property = "value" };

 

Reason -

If you are using a parameterless constructor, as shown, the parentheses are optional, but if you are executing a constructor that requires parameters, the parentheses are mandatory, o/w, the compiler would cry as below -
 

Compile error -

'LINQProcessing.ClassWithConstructorWithParameters' does not contain a constructor that takes 0 arguments

PS: Please comment if this served your purpose by any chance. Happy coding :)