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4 private void loadButton_Click(object sender, RoutedEventArgs e) { string url = " + nameTextBox.Text + ".xml"; client.DownloadStringAsync(new Uri(url)); }

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8 NameAddressBank DetailsCustomer ID Rob18 Pussycat MewsNut East Bank Jim10 Motor DriveBig Fall Bank Ethel4 Funny AddressStrange bank111111

9 Customer IDProduct IDOrder DateStatus /10/2010Shipped /10/2010Shipped /09/2010On order Product IDProduct NameSupplierPrice 1001 Windows Phone 7 Microsoft Cheese grater Cheese Industries Boat hook John’s Dockyard 20

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11 SELECT * FROM Orders WHERE CustomerID = "123456"

12 public class Customer { public string Name {get; set;} public string Address { get; set; } string BankDetails { get; set; } public int ID { get; set; } }

13 List Customers = new List ();

14 public List FindCustomerOrders(int CustomerID) { List result = new List (); foreach ( Order order in Orders ) { if (order.CustomerID == CustomerID) { result.Add(order); } } return result; }

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16 var orderQueryResult = from order in db.Orders where order.CustomerID == "123456" select order;

17 var orderQueryResult = from order in db.Orders where order.CustomerID == "123456" select order;

18 var orderQueryResult = from order in db.Orders where order.CustomerID == "123456" select order;

19 var orderQueryResult = from order in db.Orders where order.CustomerID == "123456" select order;

20 var orderQueryResult = from order in db.Orders where order.CustomerID == "123456" select order;

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22 Tue Oct 12 11:57: Hello from Twitter Rob Miles

23 XElement TwitterElement = XElement.Parse(twitterText);

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25 public class TwitterPost { public string PostText { get; set; } public string DatePosted { get; set; } public string UserImage { get; set; } }

26 var postList = from tweet in twitterElements.Descendants("status") select new TwitterPost { UserImage = tweet.Element("user"). Element("profile_image_url").Value, PostText = tweet.Element("text").Value, DatePosted = tweet.Element("created_at").Value };

27 var postList = from tweet in twitterElements.Descendants("status") select new TwitterPost { UserImage = tweet.Element("user"). Element("profile_image_url").Value, PostText = tweet.Element("text").Value, DatePosted = tweet.Element("created_at").Value };

28 var postList = from tweet in twitterElements.Descendants("status") select new TwitterPost { UserImage = tweet.Element("user"). Element("profile_image_url").Value, PostText = tweet.Element("text").Value, DatePosted = tweet.Element("created_at").Value };

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TwitterPost p1 = new TwitterPost { DatePosted = "Tue Oct 12 11:57: ", UserImage = PostText = "This is a test post from Rob" }; TwitterPost p2 = new TwitterPost { DatePosted = "Wed Oct 13 14:21: ", UserImage = PostText = "This is another test post from Rob" }; List posts = new List (); posts.Add(p1); posts.Add(p2); 44

TwitterPost p1 = new TwitterPost { DatePosted = "Tue Oct 12 11:57: ", UserImage = PostText = "This is a test post from Rob" }; TwitterPost p2 = new TwitterPost { DatePosted = "Wed Oct 13 14:21: ", UserImage = PostText = "This is another test post from Rob" }; List posts = new List (); posts.Add(p1); posts.Add(p2); 45

TwitterPost p1 = new TwitterPost { DatePosted = "Tue Oct 12 11:57: ", UserImage = PostText = "This is a test post from Rob" }; TwitterPost p2 = new TwitterPost { DatePosted = "Wed Oct 13 14:21: ", UserImage = PostText = "This is another test post from Rob" }; List posts = new List (); posts.Add(p1); posts.Add(p2); 46

47 tweetsListBox.ItemsSource = posts;

48 tweetsListBox.ItemsSource = postList;

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