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I have created a client in C# and a server in C. The Server is run on a linux computer and client on Windows. When the client tries to connect it fails. I have tried modifiyng the server to run on windows, and I am able to establish the connection between two windows computers. It also seems to work connecting a linux version of the client to the server on linux. But it doesn´t work connecting a c# version on windows to the c server on linux.

What protocol are you using to connect the client to the server? I'm mean have you written your own webserver, or some custom protocol on top of TCP/IP, or what?

Do you want to know more?

Vogon Building and Loan advise that your planet is at risk if you do not keep up repayments on any mortgage secured upon it. Please remember that the force of gravity can go up as well as down.

I use TCP Client class in the C# client program to connect to the server. I use the accept method in the c-written server to accept the incoming socket connection.

Hi,

my query is two-fold. Firstly, when exporting a datagrid (filled with Oracle data) to Excel the resulting .xls file is quite large(at least 6 MB) and is quite a slow load into Excel. I was wondering how to make it smaller (and quicker to load). Each query is about 6000 rows at least, all of which are required.

Secondly, can I export it to any other format other than .xls? I am able to produce .xml files but would like to produce .csv files if possible? Smaller .xls files would be perfect.

The saveFileDialog1.Filter method currently contains .xls as when I've tried to include .csv the file is written as Xml, is over 65000 lines and is therefore truncated by Excel.

I'm sure its just sloppy coding on my part (trainees eh?) so any advice/tips would be appreciated.

Thanks for reading

Scott

Hi,
I am trying to implement a list box in which each item is a button control with bitmap.
How can this be done?

Thanks
kalpu

Hello

Can anybody provide me code that how we can use our personal computer (running windows 2000, C#) as a FTP server.

I am a fresher in this Topic.

So please make the code simple.

Thanks
Sharad Rose | [Rose]

You want to do it programmatically or manually? Confused | :confused:

Manual solution:
Install IIS on windows 2000. That will install SMTP and FTP services. Just enable the FTP service and your computer is a FTP server. Wink | ;)

Programmatic Solution:
See whether System.Net.WebClient solves your purpose.

Hello,

I already have spoken about my problem in this forum. I developed a Smart Device Application with a Login function. After the login function a screen with some information is displayed for about five seconds and then be automatically forwarded to the next Form. I wrote a little code sample and wouuld ask if this is correct to solve my problem?

using System.Drawing;
using System.Collections;
using System.Windows.Forms;
using System.Data;

namespace SmartDeviceApplication2
{

public class Form1 : System.Windows.Forms.Form
{
private System.Windows.Forms.TextBox textBox1;
private System.Windows.Forms.Label label1;
private System.Windows.Forms.Button button1;
private System.Windows.Forms.Label label2;
private System.Windows.Forms.MainMenu mainMenu1;

private static AutoResetEvent evt;
private static int count = 5;

public Form1()
{

InitializeComponent();

}

protected override void Dispose( bool disposing )
{
base.Dispose( disposing );
}
#region Windows Form Designer generated code

private void InitializeComponent()
{
this.mainMenu1 = new System.Windows.Forms.MainMenu();
this.textBox1 = new System.Windows.Forms.TextBox();
this.label1 = new System.Windows.Forms.Label();
this.button1 = new System.Windows.Forms.Button();
this.label2 = new System.Windows.Forms.Label();
//
// textBox1
//
this.textBox1.Location = new System.Drawing.Point(64, 64);
this.textBox1.Text = "textBox1";
//
// label1
//
this.label1.Font = new System.Drawing.Font("Monotype Corsiva", 18F, System.Drawing.FontStyle.Italic);
this.label1.ForeColor = System.Drawing.Color.LawnGreen;
this.label1.Location = new System.Drawing.Point(16, 8);
this.label1.Size = new System.Drawing.Size(160, 24);
this.label1.Text = "Test";
this.label1.TextAlign = System.Drawing.ContentAlignment.TopCenter;
//
// button1
//
this.button1.Location = new System.Drawing.Point(64, 136);
this.button1.Text = "button1";
this.button1.Click += new System.EventHandler(this.button1_Click);
//
// label2
//
this.label2.Location = new System.Drawing.Point(64, 104);
this.label2.Text = "label2";
//
// Form1
//
this.BackColor = System.Drawing.Color.Orange;
this.Controls.Add(this.label2);
this.Controls.Add(this.button1);
this.Controls.Add(this.label1);
this.Controls.Add(this.textBox1);
this.Menu = this.mainMenu1;
this.Text = "Form1";

}
#endregion

static void Main()
{
Application.Run(new Form1());
evt = new AutoResetEvent(false);
Timer t = new Timer(new TimerCallback(TimerCallback), null, 5000, 0);
evt.WaitOne();

ActiveForm = Form2;

}

private void button1_Click(object sender, System.EventArgs e)
{
label2.Text = textBox1.Text;
tw.Write("This is the first message!");
}

private static void TimerCallback(object state)
{
evt.Set();
}
}
}

Thanks in Advance

regards

mathon

Hello,

I want to develop my own control for table which contains links which
referes to other Forms of a Smart Device Application for PocketPc. Does there any code samples exist which show such a development?

thx

regards

patrick

How do you create a user control by name in code.

Say I read in control names from a file. How do I then create them in code. In VB6 there was a CreateObject method but I can't find anything similar in C#

Use an overload of the Activator.CreateInstance[^] method.

www.troschuetz.de

Thanks Stefan,

I used the Activator class to create the user control by assembly name and user control namespace and name e.g.

public static object CreateOject(string AssemblyPathName, string NamespaceClass)
{
Assembly assembly;
//Can be used when instance in another assembly
try
{
assembly;= Assembly.LoadFile(AssemblyPathName);
}
catch (System.IO.FileNotFoundException e)
{
throw an exception
}
System.Type TypeToCreate = assembly.GetType(NamespaceClass);
if (TypeToCreate == null)
{
throw an exception;
}

return Activator.CreateInstance(TypeToCreate);
}

Note you don't have to create the assembly object if the type is part of the same assembly or GAC, you can just get the Type by:

Type TypeToCreate = Type.GetType(NamespaceClass);

Hello,

I found the following code sample to create Image Buttons for PocketPc. The problem is i do not really know how to use it. means how to create an Image Button with this code sample...? Frown | :(

using System;
using System.Drawing;
using System.Windows.Forms;
using System.Drawing.Imaging;

namespace Sample
{
public class ImageButton : Control
{
private Image image;
private bool bPushed;
private Bitmap m_bmpOffscreen;

public Image Image
{
get { return image; }
set { image = value; }
}

public ImageButton()
{
bPushed = false;
this.Size = new Size(21, 21);
}

protected override void OnPaint(System.Windows.Forms.PaintEventArgs e )
{
Graphics gxOff;
Rectangle imgRect;
Brush backBrush;
if (m_bmpOffscreen == null)
m_bmpOffscreen = new Bitmap(ClientSize.Width, ClientSize.Height);
gxOff = Graphics.FromImage(m_bmpOffscreen);
gxOff.Clear(this.BackColor);

if (!bPushed)
backBrush = new SolidBrush(Parent.BackColor);
else
backBrush = new SolidBrush(Color.LightGray);

gxOff.FillRectangle(backBrush, this.ClientRectangle);

if (image != null)
{
int imageLeft = (this.Width - image.Width) / 2;
int imageTop = (this.Height - image.Height) / 2;

if (!bPushed)
imgRect = new Rectangle(imageLeft, imageTop, image.Width, image.Height);
else
imgRect = new Rectangle(imageLeft + 1 , imageTop +1, image.Width,
image.Height);

ImageAttributes imageAttr = new ImageAttributes();
imageAttr.SetColorKey(BackgroundImageColor(image),
BackgroundImageColor(image));
gxOff.DrawImage(image, imgRect, 0, 0, image.Width, image.Height,
GraphicsUnit.Pixel, imageAttr);
}
if (bPushed)
{
Rectangle rc = this.ClientRectangle;
rc.Width--;
rc.Height--;
gxOff.DrawRectangle(new Pen(Color.Black), rc);
}
e.Graphics.DrawImage(m_bmpOffscreen, 0, 0);
base.OnPaint(e);
}

protected override void
OnPaintBackground(System.Windows.Forms.PaintEventArgs e )
{
}

protected override void OnMouseDown ( System.Windows.Forms.MouseEventArgs e )
{
bPushed = true;
this.Invalidate();
}

protected override void OnMouseUp ( System.Windows.Forms.MouseEventArgs e )
{
bPushed = false;
this.Invalidate();
}

private Color BackgroundImageColor(Image image)
{
Bitmap bmp = new Bitmap(image);
return bmp.GetPixel(0, 0);
}
}
}

I would like to store an image in an SQL Server database and load it into a picture box.

Has anyone had experience with doing this before?

An example would be appreciated.

Thanks

Stephen

I would usually store the address of picture in the database instead of image itself, you can do this too unless you don't want your pictures stored in folders.

HI~

I am writing a program to send email using simple mapi.
When I use the MAPISend to send the email, the new mail is not sent actually. The mail is just put on the outbox of the outlook express. Also the MAPIFindNext method also just get the mail from the inbox of the outlook express but not get the mail from the internet email server. Only when I download the email by using outlook express, my program can get the new mail.

Can I automate the sent process and the receive process so that the email is actually sent and the new mail can be retrieved from the internet server by press the button of my program by using Simple mapi?

simply i want to know how to add two integer numbers in C#. i'd appreciate your help guys.

int firstInt = 3;
int secondInt = 2;
int result ;

result = firstInt + secondInt; //result will be equal to 5

The + operator will add together most any of your basic types: int, long, short, string, etc. Hope that helps. Smile | :)

Quantum materiae materietur marmota monax si marmota monax materiam possit materiari?

but here you arleady assigned values to the two integers, what I need is to make a program that takes two input numbers from user and then adds them. thx a lot for ur reply anyway.

Class abc
{
int a=System.Console.ReadLine();
int b=System.Console.ReadLine();
int c=a+b;
}

/\ |_ E X E GG

Well does it need to be a console application or a Windows Forms application? Or even an ASP.NET application? The basic principle remains the same...it's just a matter of gathering that input from the user.

Quantum materiae materietur marmota monax si marmota monax materiam possit materiari?

How about voice recognition? That'd be cool Smile | :)

--
Help me! I'm turning into a grapefruit!
Phoenix Paint - back from DPaint's ashes!

Even better, thought recognition. The ultimate lazy mans computer.

website // Project : AmmoITX //profile
Another Post by NnamdiOnyeyiri

It looks like you want to add two numbers

Would you like help?

Get help thinking of a number
Just carry on adding without help

Oh god...

--
Help me! I'm turning into a grapefruit!
Phoenix Paint - back from DPaint's ashes!

And since it's a thought computer, the thing is going to project an image of Clippy directly into my optical nerves. Great. Roll eyes | :rolleyes:

Quantum materiae materietur marmota monax si marmota monax materiam possit materiari?