GistlynTest

main.cs

var test = new TestClass();

test.X = 10;

var y = test.X;

var test2 = new TestClass2();
test2.Name = "Var" + test.X.ToString();

var z = test2.Name;

TestClass.cs

public class TestClass
{
    public int X { get; set; }
}

TestClass2.cs

public class TestClass2
{
   public string Name { get; set; }
}