scoket communication through internet IP between two machine? - C# Discussion Boards

foreach (Point a in _gr_pts)    
{
    if (prev != Point.Empty && prev != a) 
    { 
        g.DrawLine(_ap_pen, prev, a);
    }

    prev = a;
}

I agree with the previous responses: readability is the important bit, and line spacing can seriously improve this - that is one reason why the "how to get an answer" bit at the top of the page stresses to use "code block" or <pre> tags to preserve formating.

Three points:
1) Whatever the company style is, that is the one you use. Making it all look the same is the easiest way to make it all readable - because if the company style makes it all harder to read, then everyone will complain, and the company style will get changed. If everyone codes to a personal style, then everything gets muddled and harder to cope with.
2) My personal preference is always to use braces for a loop of conditional statement. That way, it is much harder to get it wrong when adding a second staement to a single line conditional. This is a lot easier nowadays, with VS etc auto indenting etc., but it is still easier to see what is going on. (It is similar to the reason why C++ accepts "if(A = B)" while C# wont - avoidance of potential problems.)
3) I also indent braces to match the statements in the functional block - I consider them to be a single indented statement in effect. I really hate the open brace at the end of an if statement, with it's matching brace indented. It looks clumsy and makes it difficult yo find matching braces by eye. But, if that is the company style, then I use it. They write the cheques...

No trees were harmed in the sending of this message; however, a significant number of electrons were slightly inconvenienced.

This message is made of fully recyclable Zeros and Ones

Hear hear!

OriginalGriff wrote:
I consider them to be a single indented statement in effect

They are one statement -- a compound statement. At least that's how it is in C/C++, it seems the C# guys didn't like that concept for some reason.

I have a need to create an application for a Pocket PC, any variety, not settled on actual device yet.

Is C# the best tool for that and do I need other SDK's or other tools to do this?

Thanks for your advice,

Fred Blair Smile | :)

If you wish to use the .Net framework you would need to develope using the .Net compact framework [^], which you can get here[^](redistributable)
More information[^] can be found here.

Good luck, and again this framework will only support certain handsets/smartphones that have the Microsoft Mobile OS installed on it.

Check out the CodeProject forum Guidelines[^]
The original soapbox 1.0 is back![^]

Where do you find the info on what software is used for what devices?

Google helps me out with that. Obviously devices running windows mobile ce have the .net compact framework, most other phones use the Java mobile runtime (unsure of the name) but you can, again, use Google.

Check out the CodeProject forum Guidelines[^]
The original soapbox 1.0 is back![^]

i am very new in socket apps.so i need help regarding a idea. i just develop a simple 2 apps related with socket.
one is server and one is client. they are working fine in a LAN but i want that if my 2 apps is running in two different machine and there is no
lan connection, only internet connection is available then how two apps can interact with each by through socket programming other internet.

suppose there is two machine in two different office and there is no connection between two machine but both the machine can access internet.
in this type of situation how socket client can communicate with socket server which running in different office and internet is available in
2 different office.because we know socket server run on a port and wait for incoming connection and socket client will connect to socket server
through IP of that machine where socket server is running. but my situation we can provide IP address if both are member of same network/LAN but here i
told you that there is no connection between two machine where socket server & client is running. in this case what IP address i need to give to socket client to connect to socket server. i have no idea about this but i search google and found some scratch idea that this type of situation can be handle
through WAN IP. so please tell me is it right concept or not. if right then how socket client will know that what is the wan IP of that machine where socket server is running or suppose if i know the wan IP of that machine where socket server is running then can my socket client can communicate with
socket server just by WAN IP.

so please someone give me the idea in detail as a result i can handle this situation and also will be able that to program in such way that socket client
can communicate with socket server if there is no LAN connection but internet connection is available.

please help me with idea and if possible give me a sample code

tbhattacharjee

If your server has an static IP, then connect to that IP.
If your server has an dynamic IP, then use dynamic dns to connect to that dynamic dns name.

If the server behind a router and has only a local IP, like 192.168....
then you must set the port forwarding in router, to forward all request
from specific port to your server.

If you do that, then it is easy to connect, just for example :

Server : myserver.mydomain.com Port 123

You client can connect to myserver.mydomain.com Port 123, and it works just like in a LAN.

hi guys
i have table in sqlserver database named tels has columns tels_no , tels_name , tels_cost
ok
i want to enter a no in a textbox in the application then auto it get data of this no and set this in two different textboxes one for tels_name and other for tels_cost

how??????????

i do not know

thanks,

Mohamed El-Wehishy

You can use ADO.net or data set to get you data from DB.

Yeah, great answer. I'd mark it as "bestest ever" but the developers of this site probably
never knew you'd come along...

Blikkies wrote:
You can use ADO.net or data set to get you data from DB.

What the hell does that bring to anything?

It's like somebody asked: "I'm having trouble fitting windows in my house, I know where I want them and I have a fitting kit for them" and you answered "You can use a hammer or its handle to bang nails into a wall."

As for the author of the question, you'd be better off reading a book on C# and/or a tutorial online.
Rome was not built in a day.

var question = (_2b || !(_2b));

Greg Chelstowski wrote:
What the hell does that bring to anything?

at least i gave him something to google.

yesssssss
man you are right
sorry for this silly question

Mohamed El-Wehishy

SqlConnection conn = new SqlConnection(@"user id=sa; Password=pass; initial catalog=databaseName; Data source=localhost");
			conn.Open();
			SqlCommand cmd = conn.CreateCommand();
			cmd.CommandText = "SELECT * FROM Tabel WHERE tels_no = '"+textbox1.Text.Replace("'","")+"'";
			SqlDataReader reader = cmd.ExecuteReader();
			while(reader.Read())
			{
				TextBox2.Text = reader["tels_name"].ToString();
			}

Use following namespaces:
using System.Data;
using System.Data.SqlClient;

ARGH!! Never build SQL queries concatenating strings!
Have you never heard of SQL injection attacks?

This is an example code, not code that im using. instead of Preaching to me, Give this guy a solution or back off.

Secondly i USED REPLACE IN THE QUERY

1 - your code does NOT stop injection attacks
2 - if you give people here code, they are likely to use it verbatim, not ever understand it
3 - why give people examples they shouldn't use ?

Christian Graus

Driven to the arms of OSX by Vista.

Read my blog to find out how I've worked around bugs in Microsoft tools and frameworks.

Please, please, purrrrleeees stop using "I need help" for every topic line. Use something like "Problem retrieving data", or similar.

Errm...., obviously not if it's a Graphics question but you know what I mean. Smile | :)

Henry Minute

Do not read medical books! You could die of a misprint. - Mark Twain
Girl: (staring) "Why do you need an icy cucumber?"
“I want to report a fraud. The government is lying to us all.”

I setup a wpf project in TFS and checked it in. Now, when I try to open the project I get the following error.

"The project 'projectname' is under source control. This version of Visual Studio .NET does not support source controlled projects. Any changes that you make to this project will not be propagated to source control."

Everyone else on my team can access the project without any difficulties. This tells me that there is something on my machine that it just doesn't like. However, I have no issues when I open other projects from TFS. Has anyone else had this issue? If so, how do you fix it. I have uninstalled and re-installed Team Explorer and Visual Studio but this did not correct it.

Have you enabled Team Foundation pluging in Visual Studio? Just installing Team Foundation Client is not enough.
Select the plugin in Visual Studio options, under Source Control: here is a screenshot.

It is set to TFS. All of my other projects pull back fine. However, the WPF application will throw that error. I've seen questions about this happening with web development version but I can't find anything for WPF projects. When the project does load it takes the files out of source control.

Dear Friends

This is a VB syntax.. I need to know the C# Syntax for the following procedure..

Private Sub text_keydown(ByVal sender As Object, ByVal e As KeyEventArgs) Handles txtRA.KeyDown, txtRB.KeyDown

' Do something
End sub

Thanks
Md. Marufuzzaman

I will not say I have failed 1000 times; I will say that I have discovered 1000 ways that can cause failure – Thomas Edison.

The way delegates and events work in c# is slightly different, a function header does not have the handles keyword. The function header would just be

private void MethodName(object sender, EventArgs e)
{

}

while in the designer file behind the form you would see

this.controlName.KeyDown += new System.Windows.Forms.KeyEventHandler(this.MethodName);

Check out the CodeProject forum Guidelines[^]
The original soapbox 1.0 is back![^]

modified on Wednesday, October 7, 2009 10:05 AM