protected void btnSave_Click(object sender, EventArgs e)
{
//creating a restaurants object from the session
itineraries itneraryList = null;
itneraryList = Session["itneraryListSession"] as itineraries;
if (drpPassenger.SelectedValue != "0") //if there is a restaurant selected
{
//create a restaurant object for the selected restaurant and displayin its info
itinerariesItinerary iti = itneraryList.itinerary[drpPassenger.SelectedIndex - 1];
iti.outbound.departure.city = txtOutboundDeparture.Text;
iti.outbound.arriving.city = txtOutboundArriving.Text;
[email protected] = txtReturnDeparture.Text;
[email protected] = txtReturnArriving.Text;
//creating a string from the xml file
string xmlFile = MapPath(@"~/itineraries.xml");
// serializing (converting from object to xml) the file:
using (FileStream xs = new FileStream(xmlFile, FileMode.Create))
{
XmlSerializer serializor = new XmlSerializer(typeof(itineraries));
serializor.Serialize(xs, itneraryList);
}
//showing the confirmation message saying that the file has been saved
lblConfirmation.Visible = true;
lblConfirmation.Text = "Revised Itinerary has been saved to: <br/>" + xmlFile;
}
}
protected void drpPassenger_SelectedIndexChanged(object sender, EventArgs e)
{
//Add your code to handle the event when the user selects a different passenger
//creating a list of restaurants from the data stored in the session from xml file
itineraries itneraryList = Session["itneraryListSession"] as itineraries;
//displaying additional fields when there's something selected from dropdown list:
if (drpPassenger.SelectedValue == "0")
{
txtOutboundDeparture.Visible = false;
txtOutboundArriving.Visible = false;
txtReturnDeparture.Visible = false;
txtReturnArriving.Visible = false;
return;
}
else
{
txtOutboundDeparture.Visible = true;
txtOutboundArriving.Visible = true;
txtReturnDeparture.Visible = true;
txtReturnArriving.Visible = true;
//calling function to display info on itineraries:
displayItineraryInfo(itneraryList.itinerary[drpPassenger.SelectedIndex - 1]);
}
}
protected void Page_Load(object sender, EventArgs e)
{
//Add your code to deserialize the xml file and initialize the dropdown list.
itineraries itneraryList = null;
if (Session["itneraryListSession"] == null) //in case there is no session yet
{
//opening the xml file
string xmlFile = MapPath(@"~/itineraries.xml");
using (FileStream xs = new FileStream(xmlFile, FileMode.Open))
{
//deserializing the file (converting it into an object)
XmlSerializer serial = new XmlSerializer(typeof(itineraries));
itneraryList = (itineraries)serial.Deserialize(xs);
}
Session["itneraryListSession"] = itneraryList;
}
else
{
itneraryList = Session["itneraryListSession"] as itineraries;
}
if (!IsPostBack) //display restaurant list using DataBinding:
{
drpPassenger.DataSource = itneraryList.itinerary;
drpPassenger.DataTextField = "passenger";
drpPassenger.DataBind();
drpPassenger.Items.Insert(0, new ListItem("Select One...", "0"));
}
}
protected void drpPassenger_SelectedIndexChanged(object sender, EventArgs e)
{
string xmlFile = MapPath(@"~/App_Data/itineraries.xml");
//Add your code to handle the event when the user selects a different passenger
//Deserialize the XML (in each step)
itineraries allItineraries = null;
using (FileStream xs = new FileStream(xmlFile, FileMode.Open))
{
XmlSerializer serial = new XmlSerializer(typeof(itineraries));
allItineraries = (itineraries)serial.Deserialize(xs);
}
//Remove all fields when index 0 is selected
if (drpPassenger.SelectedValue == "0")
{
txtOutboundDeparture.Visible = false;
txtOutboundArriving.Visible = false;
txtInboundDeparture.Visible = false;
txtInboundArriving.Visible = false;
return;
}
else
{
//fill in relevant fields with data
txtOutboundDeparture.Visible = true;
txtOutboundArriving.Visible = true;
txtInboundDeparture.Visible = true;
txtInboundArriving.Visible = true;
itinerariesItinerary info = allItineraries.itinerary[drpPassenger.SelectedIndex - 1];
txtOutboundDeparture.Text = info.outbound.departure.city;
txtOutboundArriving.Text = info.outbound.arriving.city;
txtInboundDeparture.Text = info.inbound.departure.city;
txtInboundArriving.Text = info.inbound.arriving.city;
drpPassenger.SelectedValue = info.passenger.ToString();
}
}
public static List <TripItinerary> GetItinerariesFromXml()
{
lock (fileLock) {
try {
itineraries allItinearies = null;
string xmlFile = HostingEnvironment.MapPath(@"~/App_Data/itineraries.xml");
using (FileStream xs = new FileStream(xmlFile, FileMode.Open))
{
XmlSerializer serializor = new XmlSerializer(typeof(itineraries));
allItinearies = (itineraries)serializor.Deserialize(xs);
}
List <TripItinerary> itins = allItinearies.itinerary.Select <itinerariesItinerary, TripItinerary>(MapItineray).ToList();
return(itins);
}
catch
{
return(new List <TripItinerary>());
}
}
}
protected void btnSave_Click(object sender, EventArgs e)
{
string xmlFile = MapPath(@"~/App_Data/itineraries.xml");
lblConfirmation.Visible = true;
lblConfirmation.Text = "Revised Itinerary has been saved to <br/>" + xmlFile;
//Deserialize the XML (in each step)
itineraries allItineraries = null;
using (FileStream xs = new FileStream(xmlFile, FileMode.Open))
{
XmlSerializer serial = new XmlSerializer(typeof(itineraries));
allItineraries = (itineraries)serial.Deserialize(xs);
}
//If a passenger is presently selected
if (drpPassenger.SelectedValue != "0")
{
itinerariesItinerary info = allItineraries.itinerary[drpPassenger.SelectedIndex - 1];
info.outbound.departure.city = txtOutboundDeparture.Text;
info.outbound.arriving.city = txtOutboundArriving.Text;
info.inbound.departure.city = txtInboundDeparture.Text;
info.inbound.arriving.city = txtInboundArriving.Text;
// serializing the xml to write changes
using (FileStream xs = new FileStream(xmlFile, FileMode.Create))
{
XmlSerializer serializor = new XmlSerializer(typeof(itineraries));
serializor.Serialize(xs, allItineraries);
}
//Add confirmation message
lblConfirmation.Visible = true;
lblConfirmation.Text = "Revised Itinerary has been saved to: <br/>" + xmlFile;
}
}
protected void Page_Load(object sender, EventArgs e)
{
string xmlFile = MapPath(@"~/App_Data/itineraries.xml");
lblConfirmation.Visible = false;
//Add your code to deserialize the xml file and initialize the dropdown list.
if (!IsPostBack) //
{
//Deserialize the XML (in each step)
itineraries allItineraries = null;
using (FileStream xs = new FileStream(xmlFile, FileMode.Open))
{
XmlSerializer serial = new XmlSerializer(typeof(itineraries));
allItineraries = (itineraries)serial.Deserialize(xs);
}
drpPassenger.DataSource = allItineraries.itinerary;
drpPassenger.DataTextField = "passenger";
drpPassenger.DataBind();
drpPassenger.Items.Insert(0, new ListItem("Select One...", "0"));
}
}
public static string SaveItinerary(TripItinerary newItinerary)
{
if (newItinerary == null)
{
return("No itinerary received!");
}
itinerariesItinerary it = new itinerariesItinerary();
if (string.IsNullOrWhiteSpace(newItinerary.PassengerName))
{
return("Passenger name missing!");
}
it.passenger = newItinerary.PassengerName;
if (!cities.Contains(newItinerary.DepartureCity))
{
return("Departure city is not valid!");
}
if (!cities.Contains(newItinerary.ArrivingCity))
{
return("Arriving city is not valid!");
}
it.outbound = new itinerariesItineraryOutbound();
it.outbound.departure = new itinerariesItineraryOutboundDeparture();
it.outbound.departure.city = newItinerary.DepartureCity;
it.outbound.arriving = new itinerariesItineraryOutboundArriving();
it.outbound.arriving.city = newItinerary.ArrivingCity;;
if (string.IsNullOrWhiteSpace(newItinerary.Date))
{
return("Trip date missing!");
}
try {
it.outbound.departure.date = DateTime.ParseExact(newItinerary.Date, "yyyy-MM-dd", System.Globalization.CultureInfo.InvariantCulture);
it.outbound.arriving.date = it.outbound.departure.date;
}
catch
{
return("Trip date is not a valid date or is in wrong format!");
}
string xmlFile = HostingEnvironment.MapPath(@"~/App_Data/itineraries.xml");
lock (fileLock)
{
try
{
itineraries allItinearies = null;
using (FileStream xs = new FileStream(xmlFile, FileMode.Open))
{
XmlSerializer serializor = new XmlSerializer(typeof(itineraries));
allItinearies = (itineraries)serializor.Deserialize(xs);
}
List <itinerariesItinerary> itineraryList = allItinearies.itinerary.ToList();
itineraryList.Add(it);
allItinearies.itinerary = itineraryList.ToArray();
using (FileStream xs = new FileStream(xmlFile, FileMode.Create))
{
XmlSerializer serializor = new XmlSerializer(typeof(itineraries));
serializor.Serialize(xs, allItinearies);
}
return("New itineray has been saved.");
}
catch (Exception e)
{
return("Unable to save new itinerary: " + e.Message);
}
}
}
