IOException 10054. - C# Discussion Boards

So.. what's your question? Confused | :confused:

Regards,
--Perspx

Don't trust a computer you can't throw out a window

-- Steve Wozniak

It soesn't look too difficult.

It's already broken down into sections so deal with each one individually.
I'd leave the validation until last - get it working first.

Enjoy coding, and post back if you have any specific problems relating to your code when you've written some.

Dave
BTW, in software, hope and pray is not a viable strategy. (Luc Pattyn)
Expect everything to be hard and then enjoy the things that come easy. (code-frog)

What is it that you need help with?

Don't you understand the instructions? They seem very clear to me.

Judging from the contents of the instructions, you have posted in the wrong forum. This forum is for C# programming, not C/C++ programming.

Despite everything, the person most likely to be fooling you next is yourself.

So what code have you written so far?

Kevin

I suggest changing majors now.

Blog link to be reinstated at a later date.

i hope you are not asking anyone to type the all program for you!? D'Oh! | :doh:

whats your question?

nelsonpaixao@yahoo.com.br

trying to help & get help

This is why I feel secure in my job. Schools full of students who are obviously too dumb to do IT, and too dumb to know it.

Christian Graus

No longer a Microsoft MVP, but still happy to answer your questions.

Hello all,

I am currently developing a application on windows mobile that can receive video image from webcam via a desktop. Here is my code:

namespace ABC
{
public partial class Form1 : Form
{

// private System.Net.IPHostEntry ips = System.Net.Dns.GetHostEntry(System.Net.Dns.GetHostName());

//---port nos and server IP address---
const Int32 PORTNO = 500;
string server_IP = "10.0.1.200";

//---size of the video image---
const int SIZEOFIMAGE = 341504;

//---use for connecting to the server---
TcpClient client;

//--used for sending and receiving data---
byte[] data;

//---used for receiving images from the server---
System.Threading.Thread t;

private void ReceiveImageLoop()
{

//---keep on receiving image until an error occurs---
while (ReceiveImage())
{

MessageBox.Show("in receive image");
}
//---display error message---
MessageBox.Show("Server has stopped responding. Please try restarting the video.");
}

//---Sends a message to the server---
private void SendMessage(string message)
{
//---adds a carriage return char---
message += "\n";
try
{
//---send the text
System.Net.Sockets.NetworkStream ns = null;
lock (client.GetStream())
{
ns = client.GetStream();
byte[] bytesToSend = System.Text.Encoding.ASCII.GetBytes(message);
//---sends the text---
ns.Write(bytesToSend, 0, bytesToSend.Length);
}
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
}
}

//---receive video image from server---
public bool ReceiveImage()
{
MemoryStream s = new MemoryStream();
NetworkStream nws = client.GetStream();
int counter = 0;
int totalBytes = 0;

do
{

MessageBox.Show("trying to read data...");
//---read the incoming data---
int bytesRead = nws.Read(data, 0, client.ReceiveBufferSize); totalBytes += bytesRead;

//---write the byte() array into the memory stream---
s.Write(data, 0, bytesRead);
counter += 1;

//Loop Until totalBytes >= SIZEOFIMAGE
} while ( ! (totalBytes >= SIZEOFIMAGE));

//---display the image in the PictureBox control---
PictureBox1.Image = new Bitmap(s);

//---ask the server to send the next image---
SendMessage("Send");
return true;
}

public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
if (((Button)sender).Text == "Start")
{

//---connect to the server---
client = new TcpClient();
client.Connect(server_IP, PORTNO);

data = new byte [client.ReceiveBufferSize];
//---send message---
SendMessage("Send");

//---begin reading data asynchronously from the server---
t = new System.Threading.Thread(ReceiveImageLoop);
t.Start();

}
else
{
//---send message---
SendMessage("Stop");
t.Abort();

}
}

}
}

-------------

I keep on getting error message saying IOException for the code of lines highlighted in Bold. I have no idea why I am getting this as for my Windows version of the code, it is working smoothly.

Here are the details of the exception:

System.IO.IOException was unhandled
Message="An error message cannot be displayed because an optional resource assembly containing it cannot be found"
StackTrace:
at System.Net.Sockets.NetworkStream.Read()
at FYP.Form1.ReceiveImage()
at FYP.Form1.ReceiveImageLoop()
.
Help/suggetions from anyone will be highly apprecaited ! thanks !

add

data = new byte[client.ReceiveBufferSize];

before bold line

hope it helps

dhaim
programming is a hobby that make some money as side effect Smile | :)

Hi Mbah,

I am still getting an error after inserting your line.

Any more suggestions ?

Thanks !

do
{
  //---read the incoming data---
  //-- check if nws has data to be read
  if (nws.DataAvailable){
    int bytesRead = nws.Read(data, 0, client.ReceiveBufferSize); 
    totalBytes += bytesRead;
    //---write the byte() array into the memory stream---
    s.Write(data, 0, bytesRead);
    counter += 1;
  }
  //Loop Until totalBytes >= SIZEOFIMAGE
} while ( ! (totalBytes >= SIZEOFIMAGE));

hope it helps

dhaim
programming is a hobby that make some money as side effect Smile | :)

Hi Mbah,

I finally got it working. However, I notice that I am reading nothing at all. When I call client.ReadBufferSize, it returned 0 in windows mobile but 8167 in windows (which 8167 is the datasize I set for server sending information to this program). Any suggestions ?

Not a question, but something I learnt today that I'd like to share Wink | ;)

.

If I declare and initialise as follows...

<br />
string[] a,b,c;<br />
a = b = c = new string[size];<br />

a, b, and c all share the same memory location (i.e if you alter b - c and a are affected the same).

Something I should have spotted, but is all so easy to overlook with these fancy new languages.

Smile | :)

.

Mark Brock
"We're definitely not going to make a G or a PG version of this. It's not PillowfightCraft." -- Chris Metzen
Click here to view my blog

Exactly, because arrays in C# are reference types.

Someone might be mislead to believe that...

string[] a, b, c;<br />
a = b = c = new string[size];

would behave the same as...

int a, b, c;<br />
a = b = c = 10;

...which (as you discovered) it doesn't.

MarkBrock wrote:
but is all so easy to overlook with these fancy new languages

...easy to overlook because it is poor style and easily misleading. To clearly show your intentions, it would have been better coded as either:

string[] a = new string[size];
string[] b = a;
string[] c = a;

or

string[] a = new string[size];
string[] b = new string[size];
string[] c = new string[size];

...depending on what your intentions are.

I am using ApplicationDeployment in my project but i am getting error

The name 'ApplicationDeployment' does not exist in the current.
The name 'HttpUtility' does not exist in the current context.

I am not using namespace ? , if yes then what are the namcesapace for both of them.

What does the manual say for namespace D'Oh! | :doh:

I seem to be struggling a bit creating a custom control. Just a plain ordinary custom control with some extra properties is no problem but when it gets a little more complex I'm stuck.

I am trying to make a fancy panel. All it is is a control with a panel in the centre while the space around the panel is used for drawing a border in.

So far so good. I can create a control with a panel in the middle and space around the sides for drawing a border but when the control is added to a form at deign time and I want to add controls into the panel, I have problems. The controls are being added to the control allright but not to the panel on the control. In other words, the new controls become child controls of my custom control exactly like the panel is a child control.

Any help please?

Add this attribute to your user control

[Designer("System.Windows.Forms.Design.ParentControlDesigner,
    System.Design", typeof(System.ComponentModel.Design.IDesigner))]

Dave
BTW, in software, hope and pray is not a viable strategy. (Luc Pattyn)
Expect everything to be hard and then enjoy the things that come easy. (code-frog)

hi i am writting a writer program that use XPBurncomponent.dll
a pice of code that i used is:

XPBurn.XPBurnCD cd = new XPBurn.XPBurnCD(); 
//Add files (file path, name of file to use for CD
cd.AddFile(@"c:\pic1.jpg","pic1.jpg"); 

//... add all files... 

/* 
  Record Disc begins the process,
  Set 1st param to false if you want to actually burn the disk and not just simulate a burn
  Set 2nd param to true if you want the disc to eject after burn 
*/


cd.RecordDisc(false, true);

but sometimes an error is shown :
error: Exception has been thrown by the target of an invocation

can anybody help me please? Frown | :(

M.Alizadeh

arent there anybody to help me..???!!!
how can i solve this problem? Cry | :((

M.Alizadeh

Hi all!!
I have a problem about my project. I want to add tag to files or directories and I have a problem about program start up.

in these code I can get full path but there is some problem about directories name.

For example:
C:\Documents and Settings\*****\Desktop\ListViewExample for this there is no problem
but
C:\Documents and Settings\*****\Desktop\List View Example but if a directory or file name have a space there is a problem occures like that :
C:\Documents and Settings\*****\Desktop\List\View\Example

I could not find a solution with for each too. How can I solve this problem? Thank you very much.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Windows.Forms;
using System.Drawing;
using System.Drawing.Imaging;
using System.IO;

namespace ARC
{
static class Program
{

[STAThread]
static void Main(string[] args)
{
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
if (args != null)
{
string FilePth = "";
for (int i = 0; i < args.Length; i++)
{
FilePth += args[i]+@"\\";

}
MessageBox.Show(FilePth);
if (FilePth != "")
{
parameter.FilePath = FilePth;
Application.Run(new Form1());
}
}
else
{

}

}
}
}

Any file path that has spaces in must be enclosed in double quotes "c:\ my path\xyz,txt"

Bob
Ashfield Consultants Ltd

I have am dynamically loading a web user control based on the click of a tab strip
I load the default control for the first tab in the page load event after checking page is not postback. After that the controls are loaded/unloaded based on the SelectionChanged event for the tab strip and again in Page load because with a dynamic load viewstate has to be reloaded. I have a datalist in the user control and I am trying to create the delegate so the parent can handle the click of the edit button in the user control. Honestly I am not very good at event delegation the code complies but I never get the command to execute on the parent

in the child control site.ascx I set up the datalist public event with code below

public partial class Site : System.Web.UI.UserControl
{
public delegate void myItemCommand(object source, DataListCommandEventArgs e);
public event myItemCommand dlSiteItemCommand;

override protected void OnInit(EventArgs e)
{
InitializeComponent();
base.OnInit(e);
}
private void InitializeComponent()
{ }

protected void dlSite_ItemCommand(object source, DataListCommandEventArgs e)
{
if (dlSiteItemCommand != null)
dlSiteItemCommand(source, e);
}

protected void Page_Load(object sender, EventArgs e)
{ //get the data and fill the datalist }

in the parent (Detail) I try to bind to the event in the Site.ascx When the page loads in the parent the procedure LoadUserControl()
is called and in it after I dynamically load the correct control, I caste the generic control to an instance of Site so I can see the public event I created. Thats where I have got it wrong I am SOOOOO confused. The binding does not work when I click the edit button in the child datalist I never break into the event that is bound on the parent Below is parent code. Please I not this is too long an explanation but I have been trying and reading a long time.

Cindy

public partial class Detail : System.Web.UI.Page
{
private string LastLoadedControl
{
get
{
return ViewState["LastLoaded"] as string;
}
set
{
ViewState["LastLoaded"] = value;
}
}
private void LoadUserControl()
{
string controlPath = LastLoadedControl;

if (!string.IsNullOrEmpty(controlPath))
{
PlaceHolder1.Controls.Clear();
UserControl uc = (UserControl)LoadControl(controlPath);
if (controlPath == "Site.ascx")
{
Site ucSite = (Site)uc;
ucSite.dlSiteItemCommand += new Site.myItemCommand(ucSite_dlSiteItemCommand);
}
PlaceHolder1.Controls.Add(uc);
}
}

void ucSite_dlSiteItemCommand(object source, DataListCommandEventArgs e)
{
(source as DataList).EditItemIndex = e.Item.ItemIndex;
(source as DataList).DataSource = dsTunnel;
(source as DataList).DataBind();
}

#region Web Form Designer generated code
override protected void OnInit(EventArgs e)
{
InitializeComponent();
base.OnInit(e);
}
private void InitializeComponent()
{}

protected void Page_Load(object sender, EventArgs e)
{
if(!(Page.IsPostBack))
{
string controlPath = null;
controlPath = "Site.ascx";
LastLoadedControl = controlPath;
LoadUserControl();
}
LoadUserControl();
}
private void ts_SelectionChanged(object sender, JQD.TabStrip.SelectionChangedEventArgs e)
{
int TabPos = e.TabPosition;
ActiveTab = TabPos;
string controlPath = string.Empty;

switch (TabPos)
{
case 0:
controlPath = "Site.ascx";
LastLoadedControl = controlPath;
LoadUserControl();
break;

case 1:
break;
}

Trying to use the random() to generate random words from a string[],now I want to put the already picked words in may be an array so that the random() should not pick that word if once picked before.please help