| constructor_dll.htm |
When an object created with new key word, while creating an instance of
a class, a special method called constructor is summoned to facilitate the
object manipulation. If we don't create constructor, C# and other advance
compilers will create a default constructor for you. Constructors are
- can work like a method.
- may or may not be parameterized
- destructor's name should match the class name
|
| The example shown below does not have Main entry point, because I am
going to use it as dll in many other examples. The take home message of this
example is to introduce the concept of constructor and destructor. A
constructor or destructor will have the same name of the class, and compiler
will know for sure that a class of "xyz" exists. |
///contructor_dll.cs
//------this one will not compile------
//Compilation is done using "csc /target:library contructor_dll.cs "
using System;
//UseName.cs is the file which uses this dll.
namespace DllCon
{
public class add_different
{
// this one will not compile
public add() { Console.WriteLine("Constructor evoked"); }
~add() { Console.WriteLine("Destructor evoked"); }
public int bonus(int b, int a)
{
int n = a + b ;
Console.WriteLine("Hi,Your Total Sal is" + n + " this returns through dll");
return n;
}
}
}
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 |
| For a compiled version please review these examples.
1,
2, 3 |