public virtual BorrowResponse Borrow(Borrow req)
{
// Create request header
String action;
action = "http://tempuri.org/IService/Borrow";
WsWsaHeader header;
header = new WsWsaHeader(action, null, EndpointAddress, m_version.AnonymousUri, null, null);
WsMessage request = new WsMessage(header, req, WsPrefix.None);
// Create request serializer
BorrowDataContractSerializer reqDcs;
reqDcs = new BorrowDataContractSerializer("Borrow", "http://tempuri.org/");
request.Serializer = reqDcs;
request.Method = "Borrow";
// Send service request
m_requestChannel.Open();
WsMessage response = m_requestChannel.Request(request);
m_requestChannel.Close();
// Process response
BorrowResponseDataContractSerializer respDcs;
respDcs = new BorrowResponseDataContractSerializer("BorrowResponse", "http://tempuri.org/");
BorrowResponse resp;
resp = ((BorrowResponse)(respDcs.ReadObject(response.Reader)));
response.Reader.Dispose();
response.Reader = null;
return resp;
}
public void BorrowBook()
{
try
{ //show a loading message
View.ShowLoading();
using (IServiceClientProxy proxy = new IServiceClientProxy(binding, new ProtocolVersion11()))
{
//execute the borrow request
int bookId = LibraryModelSingleton.Instance.Book.ID;
int userId = LibraryModelSingleton.Instance.User.ID;
Borrow borrowRequest = new Borrow() { bookID = bookId, userID = userId };
BorrowResponse response = proxy.Borrow(borrowRequest);
//show positive a message if the result is valid otherwise a negative message
//and return in the welcome page
state = InnerState.WELCOME;
string msg = (response.BorrowResult.StartDate.Equals(DateTime.MinValue)) ? BORROW_FAILED_MSG : OPERATION_COMPLETED_MSG;
View.ShowMessageWithButton(msg, () => { View.ShowWelcomePage(); });
}
}
//show a message and then returns in the login page
catch (Exception) { View.ShowMessageWithButton(ERROR_MSG, () => { this.Logout(); }); }
}
public override object ReadObject(XmlReader reader)
{
Borrow BorrowField = null;
if (IsParentStartElement(reader, false, true))
{
BorrowField = new Borrow();
reader.Read();
if (IsChildStartElement(reader, "userID", false, false))
{
reader.Read();
BorrowField.userID = XmlConvert.ToInt32(reader.ReadString());
reader.ReadEndElement();
}
if (IsChildStartElement(reader, "bookID", false, false))
{
reader.Read();
BorrowField.bookID = XmlConvert.ToInt32(reader.ReadString());
reader.ReadEndElement();
}
reader.ReadEndElement();
}
return BorrowField;
}
