Question

Suppose I have a simple class that Adds:

public class Multiply
{
     public int A {get; set;}
     public int B {get; set;}
     public int C {get; set;}

     public List<int> Result {get; set;}

     public void Calculate()
     {
         if (A != 0 && B!= 0 && C != 0)
         {
           Result.Add(A);
           Result.Add(B);
           Result.Add(C);
           Result.Add(A * B);
           Result.Add(A * C);
           Result.Add(B * C);
           Result.Add(A * B * C);
         }
     }
}

The above class models my actual application. I have a series of parameters that get set, in this case A, B and C. I then execute Calculate and use the Multiply object’s Result property to access the result.

(There might be a better ways to accomplish this template; Lazy loading comes to mind. If you want to suggest a better template go for it but its not the purpose of my question; its just a simple example that illustrates my question.)

Here is my question:

If I’m using the Object Intializer Syntax:

Multiply m = new Multiplier()
{
   A = 1,
   B = 2,
   C = 3
}

m.Calculate();
DoSomething(m.Result[5]); //DoSomething(6); 

Is there a way to execute Calculate() as part of the m initialization?

Answer 1

Make Result a read-only property and move the Calculate logic to it.

But no, you can’t call methods with initializer syntax. Then it wouldn’t be initializer syntax, it would just be some alternative C# syntax.