[LINQ TO SQL] การดึงข้อมูลมาใส่ลงใน Label ด้วยภาษา C# บน ASP.NET (C#2010)

public partial class Step5 : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        TravelOrganizer travel = new TravelOrganizer();
 
 
        //
        // Calculate farthest city away
 
        Location farthestCity = (from location in travel.PlacesVisited
                                 orderby location.Distance descending
                                 select location).First();
 
        MaxCityNameTxt.Text = farthestCity.City;
        MaxCityDistanceTxt.Text = "(" + farthestCity.Distance + " miles)";
 
 
        //
        // Calculate total city distances of all cities outside US
 
        int totalDistance = (from location in travel.PlacesVisited
                             where location.Country != "USA"
                             select location).Sum(loc => loc.Distance);
 
        TotalDistanceTxt.Text = totalDistance + " miles";
 
 
        //
        // Calculate average city distances of each city trip
 
        double averageDistance = travel.PlacesVisited.Average(loc => loc.Distance);
 
        AverageDistanceTxt.Text = averageDistance + " miles";
    }
}