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MultiLevel Inheritance in C#

Posted Date: 28 Mar 2012 |Updated: 28-Mar-2012 |Category: C# Syntax |Author: |Member Level: Gold |Points: 8 |


Inheritance Used in C# for inherit methods and variable of base class. Multilevel Inheritance in C# allow us to use base class functions in various classes that inherits from base class. Today we will write code that describe you working of MultiLevel Inheritance in C#

MultiLevel Inheritance in C#


Inheritance is concept of OOP based Languages. Multilevel inheritance in C#,a class inherits the variables and methods from class above it.ok now look on this code and then i will describe you what's going on in this code:

using System;
using System.Collections.Genric;
using System.Text;
namespace CSharpMulti

{

class Program

[

static void Main(string[]args)

{

DerivedClass dob= new DerivedClass3();
Base baseRef;//it is base class reference  
baseRef = dob;
baseRef.newFunction();
}
}

class Base
{
//create virtual method in base class
public virtual void newFunction()
{

Console.WriteLine("newFunction() in Base class.");
}
}

class DerivedClass1:Base
{
//override newFunction in derived class
public override void newFunction()
{
Console.WriteLine("newFunction() in First Derived Class.");
}
}

class derivedClass2:DerivedClass1
{
public override void newFunction()
{
Console.WriteLine("newFunction() in second Derived Class.");
}
}
class DerivedClass3:DerivedClass2
{
//this class does not override newFunction
}
}


IN Above given code,Derivedclass2 class inherits from the DerivedClass1 class.The derivedClass1 class on the other hand inherit from another class,base.
OUTPUT of this code will be->
newFunction() in second derived Class.
Press any key to continuee..


Comments

Author: Abul Bashar Sardar16 Sep 2013 Member Level: Gold   Points : 7

We can reuse the method, properties of existing any class and this facility can be given through Inheritance. Inheritance can be divided into 5 type. These are given below:

1. Single Inheritance
2. Multilevel Inheritance
3. Multiple Inheritance
4. Hierarchical Inheritance
5. Hybrid Inheritance

Here I'll give description briefly with example about Multilevel Inheritance. We know that Inheritance is nothing but relationship among multiple classes. Suppose, class clsBranchOffice is defined by using method, properties of another class clsHeadOffice. In this case, clsHeadOffice is called Base class and clsBranchOffice is called Derived class. In this way more class clsRegonalOffice can be derived by using method, properties of clsHeadOffice, clsBranchOffice. The mechanism of using the multiple class is called Multilevel Inheritance.

Base Class---Derived Class---Derived Class

class HeadOffice
{
public void HeadOfficeAddress()
{
 Console.WriteLine("Head Office Address");
}
}
   /// This is base class

class BranchOffice:HeadOffice
{
public void BranchOfficeAddress()
{
Console.WriteLine("Branch Office Address"); 
}
}
/// This is derived class

class RegonalOffice:BranchOffice
{
Public void EmployeeList()
{
Console.WriteLine("Name of Employee"); 
}
Public void UnderBranchOffice()
{
Console.WriteLine("Name of Branch Office:"); 
}
}
/// This is derived class

Author: Phagu Mahato07 Oct 2013 Member Level: Gold   Points : 7

Thank You Pannu and Adul for valuable contribution I also post some example of Multiple inheritance in C Sharp
I am explain program in C sharp on parametrized constructor in multilevel inheritance

using System;

namespace Inheritance
{
class Metals
{
string metal;
public Metals(String type)
{
metals = type;
Console.WriteLine("Metal\t\t:" + metal);
}
}

class SCompany : Metals
{
string grade;
public SCompany(string grades) : base("Steel")
{
grade = grades;
Console.WriteLine("Grades\t\t:" + grade);
}
}
class Automos : SCompany
{
string Apart;
public Automobiles(string part): base("Cast Iron")
{
Apart = part;
Console.WriteLine("Part\t\t:" + Apart);
}
public static void Main()
{
Automos auto = new Automos("Mearuti");
}
}
}

[2] Another Example
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace calculation
{


class srial
{
public void addition()
{
int i = 1, j = 2;
Console.WriteLine(i+j);
}
}

class srial1:srial
{
public void display()
{

Console.WriteLine("display");

}
}

class b1 : srial1
{
public void show()
{
Console.WriteLine("show");
}
}
class c1 : b1
{
public void multiple()
{
int i = 2, j = 3;
Console.WriteLine(i * j);
}
}
}



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