Detais to Bulding Reports from object Collection using ReportViewer

In this url

http://www.c-sharpcorner.com/UploadFile/mahesh/ReportViewerObject04172007111636AM/ReportViewerObject.aspx

there is a good tutorial to Bulding Reports from object Collection using ReportViewer.

My ask is:

I suppose that in the Class Employee there is an attribute object for example City.

class City
{
private string _city;

public City(string c)
{ _city = c; }
public string city { get, set }

}

So
m_employees.Add(new Employee("Mahesh Chand", "112 New Road, Chadds Ford, PA", "123-21-1212", 30, new City("London")));

How can i visualize "London" in a textbox into the table ?

perhaps =field!City.Value.city ?
=field!city.Value ?

escapes this step. Who is kind enought to explaind the logic ? thanks.

Important:

I use the reports rdlc (no Crystal Report) in Visual studio 2008