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yes, you should.
Christian Graus
Please read this if you don't understand the answer I've given you
"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )
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The simple answer is no it does not need threading however as Christian pointed out, you should implement it.
I doubt it. If it isn't intuitive then we need to fix it. - Chris Maunder
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sorry i can't understand what u mean, i should implement what?
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You don't have to implement threading however if you do then you won't lock up your program while it downloads stuff. By implementing threading the program is more responsive and can deal with more things at once.
However if this is for a quick script or something then there's probably no need to overcomplicate matters with having to deal with threading.
I doubt it. If it isn't intuitive then we need to fix it. - Chris Maunder
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public void download(string remFileName, string locFileName, Boolean resume)
{
if (!logined)
{
login();
}
setBinaryMode(true);
Console.WriteLine("Downloading file " + remFileName + " from " + remoteHost + "/" + remotePath);
ftpLog("Downloading file " + remFileName + " from " + remoteHost + "/" + remotePath);
if (locFileName.Equals(""))
{
locFileName = remFileName;
}
if (!File.Exists(locFileName))
{
Stream st = File.Create(locFileName);
st.Close();
}
FileStream output = new FileStream(locFileName, FileMode.Open);
createDataSocket(true);
if (dataSocket != null)
{
throw new Exception();
}
dataSocket = listeningSocket.Accept();
listeningSocket.Close();
listeningSocket = null;
if (dataSocket == null)
{
throw new Exception("Winsock error: " +
Convert.ToString(System.Runtime.InteropServices.Marshal.GetLastWin32Error()));
}
sendCommand("RETR " + remFileName);
if (!(retValue == 150 || retValue == 125))
{
throw new IOException(reply.Substring(4));
}
while (true)
{
bytes = dataSocket.Receive(buffer, buffer.Length, 0);
output.Write(buffer, 0, bytes);
if (bytes <= 0)
{
break;
}
}
output.Close();
if (dataSocket.Connected)
{
dataSocket.Close();
}
Console.WriteLine("");
readReply();
if (!(retValue == 226 || retValue == 250))
{
throw new IOException(reply.Substring(4));
}
}
and in the line signed with //########## the execution stops( or blocks, whatever). What can I do except implementation of threading?
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Can you use a TCP viewing utility thing to see the traffic that's going backwards and forwards. My thoughts are that you're not actually making the connection successfully to the FTP server and it's sitting there indefinitely waiting for a connection.
I doubt it. If it isn't intuitive then we need to fix it. - Chris Maunder
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Hi,
Just a couple of immediately obvious problems:
1. The Accept call will block until someone (the server) calls back. So... you should either use a separate thread (as suggested) or don't call Accept until you've sent the command to the server.
2. I can't see that you're sending the server the port number you're listening on (unless you've done this in sendCommand(), of course). If you don't, how can it call back? This doesn't apply to passive FTP, of course, but in passive FTP you don't listen - you connect.
In any case, unless you're just practicing on how to use sockets - if you really need an FTP client and don't want to do all the details yourself: look at System.Net.WebClient and System.Net.FtpWebRequest in the framework documentation. Either of them will probably do what you want - and a lot easier. Pick the one you like...
--
Peter
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I am working on a program to display pupil essay homework data.Making the program define class pupil and class homework. Program to display hardcoded data for homework such as 150words, word friend in text etc. User of program to be able to enter keywords to be checked for and be able to request to see such essay homework data for a pupil.
Any clues how to get on such a task ?
public class Pupil
{
private string name;
private int id;
private static int numberofPupils = 0;
public pupil(string pupilName);
{
name = pupil Name;
id = ++numberofPupils;
}
public class homework
{
private string homeworktitle
private int numofwords
private string keyword etc
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Asked this question 6 hours ago.
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At least he/she is attempting to write some code now
Dave
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If there's going to be more than one pupil as indicated by your static variable numberofPupils I'd create another class PupilCollection : List<Pupil> and add them to that.
Otherwise, you're underway and post back with any specific code problems 
Dave
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It doesn't appear as if you've sufficiently analyzed the problem. Until you do that, you can't possibly design the code.
You have one or more pupils, and each of them have one or more homework assignments (like the one you want us to do for you now). Since you don't know how many of either object you will have, you should use a generic list for each.
If it were me, I'd give the pupil object a numeric ID, a name, an address, and a phone number, as well as a list to hold homework assignments. I'd provide public properties to retrieve these items from the pupil object.
As for the homework object, I'd include a numeric ID, a date it was assigned, a date it was turned in, a date it was supposed to be turned in, a subject (or title), and the other required fields. By the way, how are you going to count the words in an essay? Manually? I'm glad I don't have that job (or the transcriber's job for that matter).
At this point, you can iterate through the pupils list and retrieve either average homework grades for each pupil, or determine if they completed a specific homework assignment.
Welcome to the world of computer programming.
"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997
-----
"...the staggering layers of obscenity in your statement make it a work of art on so many levels." - Jason Jystad, 10/26/2001
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Thank you for the advice.I am on it. I will keep trying.It is quite encouraging to see that I am being motivated to put more and moe effort.
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I'm trying to figure out how to override the value of a propery for a parent class in a child class.
For example, i have
public class Base<br />
<br />
{ public virtual string _Caption="parentresult";}<br />
<br />
public class Child<br />
<br />
{ public override string _Caption="childresult";}
But the "virtual" and "override" keywords raise errors during compilation("modifier not valid for this item). They work if I set them up accessor methods, but I shouldn't have to do that (should I?).
Is it possible to make them consts, also?
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redivider.geo,
I think you can only override methods/properties and not variables. Also, your Child class does not inherit Base so it has nothing to override.
public class Base
{
private string _caption = "parentresult";
public virtual string Caption
{
get { return _caption; }
set { _caption = value; }
}
}
public class Child : Base
{
public override string Caption
{
get { return base.Caption; }
set { base.Caption = value; }
}
}
Regards,
Gareth.
(FKA gareth111)
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Variables can not be virtual. What you are doing is not overriding, it's shadowing. To tell the compiler that you intend to shadow the variable in the parent class, you use the new keyword:
public class Base {
public string _Caption="parentresult";
}
public class Child : Base {
public new string _Caption="childresult";
}
If you want to override something, it has to be a property or a method.
Despite everything, the person most likely to be fooling you next is yourself.
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Is it possible to remote control a DirectX application like Warcraft3?
I want to create a simple helper for joining games - for that I would need access to the buttons and write strings into the boxes.
If this is possible anyone good some good keywords for me to find more informations?
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If you are trying to remotely control a computer you could use VNC and then try to adapt an open source VNC to your needs.
Regards,
Thomas Stockwell
Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning.
Visit my homepage Oracle Studios[ ^]
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I am a fairly new to .Net application and am assigned a task to create a print functionality from a web application written in C#. Can anybody tell me how to do it?, or direct me a url where I can find information?
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You need to look call window.print(); in a javascript function. For instance <a onclick="window.print();<Print<a>.
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Hi Friends,
iam looking c# windows (desktop) application( Not web), browse and upload functionality sourcecode. Please help me - Thanks
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Take a look at the WinForms toolbox in your IDE, i'm sure there's a control that mentions something about Files and Browsing. and a quick google search for file browsing and c# would probably give you tons of examples, mabye even a few articles here. i dont know about everyone here but i've noticed that most of us dont like bieng asked for sourcecode without any evidence that the person asking the question has actually tried to solve the problem, some dont like bieng asked for it even with evidence.
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Hello.
I'm programming a Windows Application which manage data in a MS SQL Server database.
So, I created a DataSet of the database by means of the wizard, and in the "Advanced Options" I checked the followin check box:
Refresh the data table
Adds a Select statement after Insert and Update statements to retrieve identity column values, default values, and others values calculated by the database.
Now, I need to retrieve the identity value of the row I'm inserting.
Which "Select statement" was added in order to get the identity column value after insert a row?
How should I use those statements?
Thank you, in advance.
--
[Adrián Córdoba]
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If i remember correctly it adds whatever select statement it initially uses to the ends of update and insert and delete commands so that the dataSet in memory is always accurate to what is in the database so you can spot errors easily, and you dont have to worry about the dataset saying one thing and the db saying another. You can change the statements, but you have to move the declaration statements out of the InitializeComponent method which is generated for you and put them into the forms constructor or load event. there may be problems with moving them that i havnt found yet..i dont do much with the data once i get it.
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