C#

class Driver
{
    IVehicle vehicleToDrive = null;
 
    Driver(IVehicle vehicleToDrive){
        this.vehicleToDrive = vehicleToDrive;
    }

    public void StartDriving() {
        vehicleToDrive.Start();
        vehicleToDrive.ChangeGear();
        vehicleToDrive.Accelerate();
    }
}

IVehicle vehicle = VehicleRepository.Create("Benz"); // you get a benz here which implements IVehicle

class VehicleRepository
{
    public static IVehicle Create(string vehicleName)
    {
        IVehicle vehicle = null;
        if(vehicleName == "Benz")
            vehicle = new Benz();
        else if(vehicleName == "Ford")
            vehicle = new Ford(); 
        return vehicle;
    }
}

class BusinessValidation
{
    IValidator[] validators = { 
            new NameValidator(), 
            new AgeValidator(), 
            new DesignationValidator() };

    void Validate()
    {
        foreach(IValidator validator in validators){
          validator.PerformValidation();
        }   
    }
}

shivapriyak wrote:

So which method is better?

A a = new A();

interface1 a = Create()

shivapriyak wrote:

So is it correct to have 'ModulesPath' of type IList or List?

shivapriyak wrote:

So here, should 'i' be of type IIAD or of type InstrumentDomain i.e. the concrete class?

public IList<T>
F<T>
(
)
{
    List<T> result = new List<T>() ;
...
    return ( result.AsReadOnly() ) ;
}

Member 4959176 wrote:

Its very urgent.

C:\>dir /s/b %SystemDrive%\windows\microsoft.net\framework\csc.exe
C:\windows\microsoft.net\framework\v1.1.4322\csc.exe
C:\windows\microsoft.net\framework\v2.0.50727\csc.exe
C:\windows\microsoft.net\framework\v3.5\csc.exe

PIEBALDconsult wrote:

CodeDom should be calling the latest installed version of the compiler.

Dictionary<string, string> options = new Dictionary<string, string>() { { "CompilerVersion", "v3.5" } };
Microsoft.CSharp.CSharpCodeProvider cp = new Microsoft.CSharp.CSharpCodeProvider(options);

using System;
using System.Windows.Forms;

namespace TestApp
{
    public partial class Form1 : Form
    {
        ExtendedTextBox extendedTextBox1;

        public Form1()
        {
            InitializeComponent();
            extendedTextBox1 = new ExtendedTextBox();
            Controls.Add(extendedTextBox1);
        }
    }

    public class ExtendedTextBox : TextBox
    {
        public ExtendedTextBox()
        {
        }

        protected override void OnHandleCreated(EventArgs e)
        {
            base.OnHandleCreated(e);
            Parent.Click += new EventHandler(Parent_Click);
        }

        void Parent_Click(object sender, EventArgs e)
        {
            MessageBox.Show(
                "click",
                "click",
                MessageBoxButtons.OK,
                MessageBoxIcon.Information);

        }
    }
}