C programming examples

http://www.programmingsimplified.com/c-program-examples

asp.net complete lifecycle of a Web page

• Page request - During this stage, ASP.NET makes sure the page either parsed or compiled and a cached version of the page can be sent in response
• Start - During this stage sets the Request and Response page properties and the page check the page request is either a postback or a new request
• Page Initialization - During this stage, the page initialize and the control's Unique Id property are set
• Load - During this stage, if the request is postback, the control properties are loaded without loading the view state and control state otherwise loads the view state
• Validation - During this stage, the controls are validated
• Postback event handling - During this stage, if the request is a postback, handles the event
• Rendering - During this stage, the page invokes the Render method to each control for return the output
• Unload - During this stage, when the page is completely rendered and sent to the client, the page is unloaded.

Destructor in C#

Destructor is a special method that get invoked / called automatically whenever an object of a given class gets destroyed. Main idea behind using destructor is to free the memory used by the object.

Constructor in C#

Constructor is a special method that get invoked / called automatically whenever an object of a given class gets instantiated.

Interfaces in C#

An interface is similar to a class with method signatures. There wont be any implementation of the methods in Interface. Classes which implements interface should have implementation of methods defined in abstract class

Sealed Classes in c#

If a class is defined as Sealed it cannot be inherited in derived class.

public sealed class Car
{

public Car()
{
Console.WriteLine("Base Class Car");
}

public void DriveType()
{
Console.WriteLine("Right Hand ");
}
} 

Abstract Class in C#

If we don't want a class object to be created define the class as abstract. An abstract class can have abstract and non abstract classes. If a method in abstract id defined as abstract , it must be implemented in derived class. For example , in the classes given below , method DriveType is defined as abstract. 

abstract class Car
{
public Car()
{
Console.WriteLine("Base Class Car");
}
public abstract void DriveType();
}

class Ford : Car
{
public void DriveType()
{
Console.WriteLine("Right Hand ");
}
}