Comments by Saeed Jafarian

Saeed Jafarian 12-Aug-15 11:34am View

ok, thank you for your helps

Saeed Jafarian 12-Aug-15 11:31am View

i use this article for my codes

http://www.codeproject.com/Articles/422474/Serialization-using-different-formats-in-NET

and i need server.mappath because it is a website project

Saeed Jafarian 12-Aug-15 11:26am View

no i get just one file for course list<>.
the point is i am deserializing the xml to the list without problem, even with the database and encoding i could deserialize. but the reference is broken between object.

Saeed Jafarian 12-Aug-15 11:07am View

ok now i do it with fileStream
serializing:

DataContractSerializer CourseSerializer = new DataContractSerializer(typeof(List<'course'>), null, int.MaxValue, false, true /* preserveObjectReferences */, null);
XmlDictionaryWriter writer = null;
FileStream fs = null;
fs = new FileStream(Server.MapPath("course.xml"), FileMode.Create);
writer = XmlDictionaryWriter.CreateTextWriter(fs);
CourseSerializer.WriteObject(writer, Courses);
writer.Close();
fs.Close();

deserializing:

FileStream fs = null;
DataContractSerializer ser = null;
XmlDictionaryReader reader = null;
fs = new FileStream(Server.MapPath("course.xml"), FileMode.OpenOrCreate);
reader = XmlDictionaryReader.CreateTextReader(fs, new XmlDictionaryReaderQuotas());
ser = new DataContractSerializer(typeof(List<course>));
Courses = (List<'course'>)ser.ReadObject(reader);
fs.Close();
reader.Close();

and do it for level and prof list either

no database, no encoding, just stream, but the problem not solved....

Saeed Jafarian 12-Aug-15 9:52am View

here i upload the xml output for a simple run of the application for consideration

http://s000.tinyupload.com/?file_id=01744593121547335786

Saeed Jafarian 12-Aug-15 9:45am View

Deleted

and this is the simple output of the serialization:

<arrayofcourse xmlns="http://schemas.datacontract.org/2004/07/" xmlns:i="http://www.w3.org/2001/XMLSchema-instance" xmlns:z="http://schemas.microsoft.com/2003/10/Serialization/" z:id="1" z:size="2">
<course z:id="2">
<departmanid>1
<departmanname z:id="3">dep1
<facultyid>3
<facultyname z:id="4">fac1
<coursecode>35346
<coursefield z:id="5">
<courseperweek>2
<coursetype z:id="6">تئوري
<exceptioninstring z:ref="5" i:nil="true">
<id>0
<capacity>50
<coursename z:id="7">الگوريتم
<department i:nil="true">
<departmentplace>true
<distancepart>0
<duration>2
<exception_slots xmlns:a="http://schemas.microsoft.com/2003/10/Serialization/Arrays" z:id="8" z:size="0">
<faculty i:nil="true">
<facultyplace>false
<level i:nil="true">
<oneday>true
<professor z:Id="9">
<departmanid>0
<departmanname i:nil="true">
<facultyid>0
<facultyname i:nil="true">
<ProfId>2</ProfId>
<teachingcourses z:id="10" z:size="2">
<course z:id="11">
<departmanid>1
<departmanname z:ref="3" i:nil="true">
<facultyid>4
<facultyname z:ref="4" i:nil="true">
<coursecode>2354
<coursefield z:ref="5" i:nil="true">
<courseperweek>2
<coursetype z:id="12">تئوري
<exceptioninstring z:ref="5" i:nil="true">
<id>0
<capacity>50
<coursename z:id="13">درس1
<department i:nil="true">
<departmentplace>true
<distancepart>0
<duration>2
<exception_slots xmlns:a="http://schemas.microsoft.com/2003/10/Serialization/Arrays" z:id="14" z:size="0">
<faculty i:nil="true">
<facultyplace>false
<level i:nil="true">
<oneday>true
<professor z:Ref="9" i:nil="true" />
<projection>false</projection>
<sameclass>false
<sameday>false
<sameslot>false

<course z:ref="2" i:nil="true">

<teachingprogram xmlns:a="http://schemas.microsoft.com/2003/10/Serialization/Arrays" z:size="0">
<profName z:Id="15">استاد 1</profName>
</professor>
<projection>false</projection>
<sameclass>false
<sameday>false
<sameslot>false

<course z:ref="11" i:nil="true">

<arrayofprof xmlns="http://schemas.datacontract.org/2004/07/" xmlns:i="http://www.w3.org/2001/XMLSchema-instance" xmlns:z="http://schemas.microsoft.com/2003/10/Serialization/" z:id="1" z:size="1">
<prof z:Id="2">
<departmanid>0
<departmanname i:nil="true">
<facultyid>0
<facultyname i:nil="true">
<ProfId>2</ProfId>
<teachingcourses z:id="3" z:size="2">
<course z:id="4">
<departmanid>1
<departmanname z:id="5">dep1
<facultyid>4
<facultyname z:id="6">fac1
<coursecode>2354
<coursefield z:id="7">
<courseperweek>2
<coursetype z:id="8">تئوری
<exceptioninstring z:ref="7" i:nil="true">
<id>0
<capacity>50
<coursename z:id="9">درس1
<department i:nil="true">
<departmentplace>true

Saeed Jafarian 12-Aug-15 7:43am View

Hello again
i did serialize and deserialize with dataContractSerializer but the problem still exists,
what i have done:

<pre lang="cs">
XmlDocument SerialedCourse = new XmlDocument();
DataContractSerializer CourseSerializer = new DataContractSerializer(typeof(List <'course'> ), null, int.MaxValue, false, true /* preserveObjectReferences */, null);

using (MemoryStream courseStream = new MemoryStream())
{
CourseSerializer.WriteObject(courseStream, Courses);
courseStream.Position = 0;
SerialedCourse.Load(courseStream);

}
</pre>
and then insert it into the sql table with xml column, i checked the result and i think the refrencing exist beacause i see something like <professor z:Id="9"> in the course array list, but i dont know why after deserialization that problem not solved,
for deserialization i used something like:

string temp = dt_load.Rows[0][1].ToString();

byte[] byteArray = Encoding.UTF8.GetBytes(dt_load.Rows[0][1].ToString());

MemoryStream courseStream = new MemoryStream(byteArray);
DataContractSerializer CourseSerializer = new DataContractSerializer(typeof(List <'course'> ));

Courses = (List<'course'>)CourseSerializer.ReadObject(courseStream);

i am totally confused

Saeed Jafarian 11-Aug-15 13:27pm View

so if i use DataContractSerializer the problem should be solved , i don`t have problem with switching , i have tried 3 types of serializer up to now.
i will try and make you know if this works

Saeed Jafarian 11-Aug-15 13:14pm View

thank you for your contribution,yes, you are right

Saeed Jafarian 11-Aug-15 13:08pm View

thank you for your comment, yes, this is exactly the issue,but i dont understand how to solve it, how you manually reference them after deserialization?

Saeed Jafarian 11-Aug-15 12:26pm View

i used newtonsoft json.net which support cycles

Saeed Jafarian 11-Aug-15 12:24pm View

there is no other class further , i had shown what i mean by other class : like prof class , like course class. and yes it has cycle, the prof has course and course has prof then yes, it has cycle but i used protobuf or binary formatter and yet this problem exist. what about that?

Saeed Jafarian 25-May-15 9:02am View

...........................................................................

Saeed Jafarian 9-Sep-14 15:15pm View

thank you very much for your help

Saeed Jafarian 9-Sep-14 15:02pm View

yeees you are right , in my insert query and my connection class the parameters are changed to string and that was the problem, so i fix them and the serialize part work as well which i should thank you very much , your answers was very helpful and i appreciate you

but now i get error in deserialize that means i cannot cast the right side to the left side
this line:
List<departman> dep =(List<departman>)formatter.Deserialize(departmanStream);

any ideas?

Saeed Jafarian 9-Sep-14 14:09pm View

your right, my fault, sorry

Saeed Jafarian 9-Sep-14 14:07pm View

now i get the error :
The input stream is not a valid binary format. The starting contents (in bytes) are: 53-00-79-00-73-00-74-00-65-00-6D-00-2E-00-42-00-79 ...

which i think there is something wrong with my serialize part, which i explain in the answer to your comment above

Saeed Jafarian 9-Sep-14 14:02pm View

do i have a choice here?
i get the data from the database with a select query and put them to the DataTable which of course changes it to string, what do you suggest i should do?

and as i mentioned in first comment:

i also think there is something wrong with my serialize part because when i see my database records all of the columns and rows are the same as each other despite the different list<> objects

Saeed Jafarian 9-Sep-14 13:50pm View

i mentioned in the last comments that the columns type are varbinary(MAX) and the GenerateStreamFromString method is mentioned in the question itself but that`s it:

public Stream GenerateStreamFromString(string s)
{
MemoryStream stream = new MemoryStream();
StreamWriter writer = new StreamWriter(stream);
writer.Write(s);
writer.Flush();
stream.Position = 0;
return stream;
}

Saeed Jafarian 9-Sep-14 13:33pm View

oh i am so sorry i did not copy these two lines :

BinaryFormatter formatter = new BinaryFormatter();
formatter.Serialize(departmanStream, Departments);

and the departments is the list<>

Saeed Jafarian 9-Sep-14 13:22pm View

i am sorry
can you explain more about "The length of the byte array, DB, should be 0." ? what do you mean exactly?

Saeed Jafarian 9-Sep-14 13:05pm View

in deserialize part line
:List<departman> dep = (List<departman>)formatter.Deserialize(departmanStream); exception : "End of Stream encountered before parsing was completed"

and i also think there is something wrong with my serialize part because when i see my database records all of the columns and rows are the same as each other despite the different list<> objects, the columns of the DB is varbinary(MAX) to save binary data
and yes the connection is the class of my own which i write to connect to the database with just giving name of the query and the parameters

Saeed Jafarian 22-Aug-12 5:15am View

this is the error:

System.Net.Mail.SmtpException: Failure sending mail. ---> System.Net.WebException: Unable to connect to the remote server ---> System.Net.Sockets.SocketException: No connection could be made because the target machine actively refused it 209.190.121.56:25 at System.Net.Sockets.Socket.DoConnect(EndPoint endPointSnapshot, SocketAddress socketAddress) at System.Net.Sockets.Socket.InternalConnect(EndPoint remoteEP) at System.Net.ServicePoint.ConnectSocketInternal(Boolean connectFailure, Socket s4, Socket s6, Socket& socket, IPAddress& address, ConnectSocketState state, IAsyncResult asyncResult, Int32 timeout, Exception& exception) --- End of inner exception stack trace --- at System.Net.ServicePoint.GetConnection(PooledStream PooledStream, Object owner, Boolean async, IPAddress& address, Socket& abortSocket, Socket& abortSocket6, Int32 timeout) at System.Net.PooledStream.Activate(Object owningObject, Boolean async, Int32 timeout, GeneralAsyncDelegate asyncCallback) at System.Net.PooledStream.Activate(Object owningObject, GeneralAsyncDelegate asyncCallback) at System.Net.ConnectionPool.GetConnection(Object owningObject, GeneralAsyncDelegate asyncCallback, Int32 creationTimeout) at System.Net.Mail.SmtpConnection.GetConnection(String host, Int32 port) at System.Net.Mail.SmtpTransport.GetConnection(String host, Int32 port) at System.Net.Mail.SmtpClient.GetConnection() at System.Net.Mail.SmtpClient.Send(MailMessage message) --- End of inner exception stack trace --- at System.Net.Mail.SmtpClient.Send(MailMessage message) at sendnewsletter.btnsend_Click(Object sender, EventArgs e)

Saeed Jafarian 22-Aug-12 5:15am View

this is the error :

System.Net.Mail.SmtpException: Failure sending mail. ---> System.Net.WebException: Unable to connect to the remote server ---> System.Net.Sockets.SocketException: No connection could be made because the target machine actively refused it 209.190.121.56:25 at System.Net.Sockets.Socket.DoConnect(EndPoint endPointSnapshot, SocketAddress socketAddress) at System.Net.Sockets.Socket.InternalConnect(EndPoint remoteEP) at System.Net.ServicePoint.ConnectSocketInternal(Boolean connectFailure, Socket s4, Socket s6, Socket& socket, IPAddress& address, ConnectSocketState state, IAsyncResult asyncResult, Int32 timeout, Exception& exception) --- End of inner exception stack trace --- at System.Net.ServicePoint.GetConnection(PooledStream PooledStream, Object owner, Boolean async, IPAddress& address, Socket& abortSocket, Socket& abortSocket6, Int32 timeout) at System.Net.PooledStream.Activate(Object owningObject, Boolean async, Int32 timeout, GeneralAsyncDelegate asyncCallback) at System.Net.PooledStream.Activate(Object owningObject, GeneralAsyncDelegate asyncCallback) at System.Net.ConnectionPool.GetConnection(Object owningObject, GeneralAsyncDelegate asyncCallback, Int32 creationTimeout) at System.Net.Mail.SmtpConnection.GetConnection(String host, Int32 port) at System.Net.Mail.SmtpTransport.GetConnection(String host, Int32 port) at System.Net.Mail.SmtpClient.GetConnection() at System.Net.Mail.SmtpClient.Send(MailMessage message) --- End of inner exception stack trace --- at System.Net.Mail.SmtpClient.Send(MailMessage message) at sendnewsletter.btnsend_Click(Object sender, EventArgs e)

Saeed Jafarian 19-Aug-12 12:25pm View

the real problem is how to assign the category items when "category" is not static, it changes through the repeater1

Saeed Jafarian 12-Aug-11 9:31am View

the link says: content not found
and i know DateTimePicker is so much better but in this situation i should use maskedtextbox :((

Saeed Jafarian 12-Aug-11 9:28am View

I checked that before, not help

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