How to get properties from another class?

You need to create an object of type ClassB and then assign it to structA.PropertyA. You can then access ClassB's properties like this:

using System;

struct StructA

{

public ClassB PropertyA {get; set;}

}

class ClassB

{

public int PropertyB1 {get; set;}

public int PropertyB2 {get; set;}

public int PropertyB3 {get; set;}

}

class Test

{

static void Main()

{

StructA structA = new StructA();

structA.PropertyA = new ClassB();

structA.PropertyA.PropertyB1 = 10;

Console.WriteLine(structA.PropertyA.PropertyB1); // 10

Console.WriteLine(structA.PropertyA.PropertyB2); // 0, default value

Console.WriteLine(structA.PropertyA.PropertyB3); // 0, default value

Console.ReadKey();

}