Use a static class factory : Factory Pattern « Design Patterns « C# / CSharp Tutorial

1. C# / CSharp Tutorial
2. Design Patterns
3. Factory Pattern

using System; 
 
class MyClass { 
  int a, b; 
 
  // Create a class factory for MyClass. 
  static public MyClass factory(int i, int j) { 
    MyClass t = new MyClass(); 
    
    t.a = i; 
    t.b = j; 
 
    return t; // return an object 
  } 
 
  public void show() { 
    Console.WriteLine("a and b: " + a + " " + b); 
  } 
} 
  
class MainClass { 
  public static void Main() {   
    int i, j; 
 
    // generate objects using the factory 
    for(i=0, j=10; i < 10; i++, j--) { 
      MyClass ob = MyClass.factory(i, j); // get an object 
      ob.show(); 
    } 
       
    Console.WriteLine();    
  } 
}

a and b: 0 10
a and b: 1 9
a and b: 2 8
a and b: 3 7
a and b: 4 6
a and b: 5 5
a and b: 6 4
a and b: 7 3
a and b: 8 2
a and b: 9 1