What means a point after new class()

Question

Hello may be this is a very simple question but I can't find any answer. To initialize a class to an object I know some ways for new like this class A; //for short I don't define A A a = new A(); or A a = new A(1 nnn); or A a = new A() { x = 1 s = nnn }; or anonym var pet = new { x = 1 s = nnn }; but what means this point . in the example downstairs after new WebHostBuilder() ? var host = new WebHostBuilder() .UseKestrel() .UseContentRoot(Directory.GetCurrentDirectory()) .UseIISIntegration() .UseStartup () .Build(); Thank you if some would explain me that.

Amit Gupta · Answer

Any method thats return type is itself leads to chain creation. class Context { public string FirstName { get ; set ; } public string LastName { get ; set ; } public string Sex { get ; set ; } public string Address { get ; set ; } } class Customer { private Context _context = new Context (); // Initializes the context // set the value for properties public Customer FirstName ( string firstName ) { _context . FirstName = firstName ; return this ; } public Customer LastName ( string lastName ) { _context . LastName = lastName ; return this ; } public Customer Sex ( string sex ) { _context . Sex = sex ; return this ; } public Customer Address ( string address ) { _context . Address = address ; return this ; } // Prints the data to console public void Print () { Console . WriteLine ( First name: {0} 
Last name: {1} 
Sex: {2} 
Address: {3}  _context . FirstName  _context . LastName  _context . Sex  _context . Address ); } } class Program { static void Main ( string [] args ) { // Object creation Customer c1 = new Customer (); // Using the method chaining to assign & print data with a single line c1 . FirstName ( vinod ). LastName ( srivastav ). Sex ( male ). Address ( bangalore ). Print (); } }

Amit Gupta · Answer

Hey This pattern is called method chaining. However it too complicated approx 99%. Follow the below link that makes you more understandable http://stackoverflow.com/questions/1103985/method-chaining-why-is-it-a-good-practice-or-not

Harald Langner · Answer

thank you for the advice - I will take a look. Method chaining is a technic its also new for me. I have seen such things in LINQ Querys... So now I understand: it is possible to call multiply methods in one step.I found this example: https://en.wikipedia.org/wiki/Fluent_interface#C.23 But what have method chaining to do with instantiating an object with new? Is there an example how to build such a class?

Bikesh Srivastava · Answer

That is called method chaining in c#