Open Visual Studio and create a new iOS solution using the iPhone Empty Project template.

Name your project Visual Studio iOS Demo and click the OK button.

Add a new Empty class to your project.

Name the class MyRootViewController.

Add a using statement for the MonoTouch.UIKit framework, as shown in the following line of code:

Using MonoTouch.UIKit;

Set the class to inherit from UIViewController, as shown in the following code:

classMyRootViewController : UIViewController
{
}

Override the ViewDidLoad() method:

public override void ViewDidLoad()
{
base.ViewDidLoad();
View.BackgroundColor = UIColor.LightGray;
}

Open the AppDelegate.cs file...