How to use inheritance in c#

Implementing Inheritance in C#.net is similar to that in Visual Basic.net. However, there is a difference in syntax while creating base class and derived class.

Click here to know How to use inheritance in Visual Basic.Net.

Note: We cannot use the ‘:’ symbol to derive another class in VisulBasic.Net. Instead, we have to use the ‘Inherits’ statement to derive the class.



The following code creates the base class in C# - Account Class

class Account
    {
        private string mCode;
        private string mName;
        private string mDescription;
        private double mBalance;

        public Account(string code, string name, string description, double balance)
        {
            mCode = code;
            mName = name;
            mDescription = description;
            mBalance = balance;
        }
       

Creation of the derived class in C# - BankAccount

class BankAccount : Account
    {
        public void deposit(double amount)
        {
            double newBalance;
            newBalance = Balance + amount;
            Balance = newBalance;
        }
       
        public void withdraw(double amount)
        {
            double newBalance;
            newBalance = Balance - amount;
            Balance = newBalance;
        }

    }
	
	

To see how inheritance works in C#, create a windows form and name it as BankForm. Design the form as shown in the Fig below. The code for the BankForm is given below.

public partial class BankForm : Form
    {
         
        BankAccount myBankAcc = new BankAccount();
        public BankForm()
        {
            InitializeComponent();
        }

        private void btnOK_Click(object sender, EventArgs e)
        {
            myBankAcc.Code = txtCode.Text;
            myBankAcc.Name = txtName.Text;
            myBankAcc.Description = txtDescription.Text;
            myBankAcc.Balance = Convert.ToDouble(txtBalance.Text);
        }

        private void btnDeposit_Click(object sender, EventArgs e)
        {
            myBankAcc.deposit(100);
            MessageBox.Show(myBankAcc.Getbalance().ToString());

        }

        private void btnWithdraw_Click(object sender, EventArgs e)
        {
          myBankAcc.deposit(50);
          MessageBox.Show(myBankAcc.Getbalance().ToString());
        }
    }
}