I wondered how nested classes in C# work as I often use them when I write native C# code (like Woods.Tree.Add(new Tree).Leaf.Color) so i tried it by my self with a Navigation example. There is a Position integer which declares a point on a line. To move left the position will be subtracted by 1, to move right the position will added by 1.
I think its quite pedantic and much code to write for such a 'simple' task. Is this the right way or is there an easier, smaller way to archive this?
using System;
namespace ConsoleApp2
{
class Program
{
static void Main(string[] args)
{
NestedTest nt = new NestedTest();//create test
nt.Navigate.Left();
Console.WriteLine(nt.Position);
nt.Navigate.Left();
nt.Navigate.Left();
Console.WriteLine(nt.Position);
nt.Navigate.Rigth();
Console.WriteLine(nt.Position);
Console.WriteLine("Press any key to exit...");
Console.ReadKey();
}
}
class NestedTest
{
public int Position { get; private set; }
public NavigateClass Navigate;//create the NavigateClass in NestedTest
//Nested NavigateClass
public class NavigateClass
{
private NestedTest _o;//the placeholder
public NavigateClass(NestedTest obj)
{
_o = obj;//Set the NestedTest class so we know which Position we have to navigate trough.
}
public void Left()
{
Console.Write("<-");
_o.Position--;//Move Position to the left (-1)
}
public void Rigth()
{
Console.Write("->");
_o.Position++;//Move Position to the right (+1)
}
}
public NestedTest(int num = 10)
{
this.Position = num;//Set start position
Navigate = new NavigateClass(this);//Set the _o in Navigate so it knows which Position it has to navigate trough
}
}
}
