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Hi,
I'm interested in learning how to retrieve CD information from a CD Drive in C#. I really only require the volume ID, to begin with. I suppose I can learn the rest myself once I've taken the first step.
Can anyone tell me the best way to learn how to do this?
eg.
- DLL References
- Classes
- Other URLs to sources that explain this
Many Thanks!
Tim
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Sorry, I meant TOC, not volume ID
Cheers,
Tim
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I have the following problem: i was trying to write a simple console application where the user enters a number and the program must show that number, as you can see is VERY VERY SIMPLE! but when the user enters the number, C# takes a wrong number, and gives that as the answer, here's an example of the code:
int i=0;
console.writeline("Enter a number: ");
i=console.read();
console.writeline("Your number is {0}",i);
i don´t know what the problem is, cause as far as i know I'm using a method that works for that!
Can anybody help me, please?
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I think you should look at the return value of console.read() method , this method is for reading the next character , for not reading an integer..
string s = Console.ReadLine();
then cast the string into an integer value
int readInt=int.Parse(s);
console.writeLine("Your number is {0}",readInt.ToString())
the above code will read the int , and then show the user...
as I know..Hope it will work..
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how can i use the serial port and treat with it
using c# to pass characters to it
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Hi,
Look at the kernel32 writefile function.
There are many examples out there on communicating with serial port.
Hope it helps.
Cheers.
Regards,
Chua Wen Ching
Visit us at http://www.necoders.com
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I am looking to dynamically generate a value (which will be shown in a textbox) depending on which rows in a datagrid are selected, rows may be selected/deselected by the user and the value will change dynamically depending on certain fields in the selected rows. Iterating through the rows to find which ones are selected is not my dillema, the problem is that I cannot find an event that fires when a row in the datagrid is selected/deselected. I would rather not force the users to click a "calculate" button. It seems that a "RowSelected" event on the datagrid would make most sense, but I cant find any info on such functionality!! I suppose I could use the "OnMouseUp" event, but then the user would be forced to use the mouse to select rows, no shift/ctrl + arrow keys!.
Any suggestions?
Thanks,
done
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hi friends.
can i open a closed port in c#?
i am doing an application in which i want to communicate on some ports of a target computer. i cannot find many open ports. the ports which are open are 135,139,445,1025.
how can i open a user defined port of the destination computer
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hi there
i have a Form whit a DateTimePicker control on it
i made it custom that only the time will be display on it
like that 12:30
an i want to pass to the Sql Db only the time
how can i do it ?
thanks....
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DateTime d = new DateTime();<br />
d=dateTimePicker.Value;<br />
d.ToShortTime();
after you pass the value into a DateTime variable , you could choose which format you would like to bind..
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you can also do:
DateTime dtEnd = new DateTime();
dtEnd.CustomFormat = "yyyy";
this.dtEnd.Format = System.Windows.Forms.DateTimePickerFormat.Custom;
GanDad
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hi all.
i have a text box for input number.the user is supposed to enter a hex number.
for ex. 0800. i want to convert this textBox.Text to decimel equivalent i.e. 2048. how can i do this?
what i have done is converted the string to int using int.parse() method. but it gives me trouble if the input which is supposed to be hex is say 5b.
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Try using
int num = Int32.Parse(string, NumberStyles.HexNumber);
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int num = Convert.toInt32(textBox.Text)
GanDad
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Hi,
I have an MSDOS appp that when i start by a shortcut it starts fine. When I start it by a Process.Start command it errors.
I would like it to start and run without an error. How can this be done?
Thanks for any advise.
Regards,
Stephen
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That depends on the application and the error. What else is in the shortcut? Command line parameters? Working directory? ...
There is nothing special about launching an MSDOS process. It launches just like any other. The problem is, more than likely, you're not launching the process with the complete information the process needs.
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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hi friends
i am trying to send pararrel TCP packets. for this i intend to use threads. one thread for each packet.
i tried using array of threads. but i did not get syntax proper.
what is the syntax for array of threads
-- mahesh
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What do you mena by "parallel TCP packets"?
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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i am trying to establish parallel connection. So i want to send tcp SYN packet in parallel. i am using libnetNT.dll to create the packets
for this i want to use threads. seperate threads for each packet
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Hello:
How do I Authenticate users for the application I built in C# and Asp.net without using built in IIS functions?
Plesae send me a sample code if you can?
This is for my educational stuff.
Thanks!
GW
gw
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Hi,
ASP.NET allows you to authenticate the users in 3 ways. They are
1) Windows
2) Passport
3) Form
We can change the mode of authentication in the web.config file.
<authentication mode="Windows">
Passport authentication mode uses the centralized authentication service provided by Microsoft. In Forms authentication mode application has to provide the logic for authenticating the user.
Regards
SGS
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I am trying to find a way to relay mail from a machine that is connected to the WAN via a dynamic non-public IP to a legitimate SMTP server in such a way that the email appears to originate from the legitimate SMTP server.
I am not a spammer, I am not trying to perform anything illegal, I just want to be able to send mail from my machine and not have it bounce because it originated from a dynamic non-public IP.
I know of some open-source solutions to this problem (like eSMTP) but would prefer to keep this within the context of my C# application.
Does anyone know a way to do this?
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Don't even try. The public Internet mail system is becoming increasingly locked down due to the massive problem of spam. The server may not even permit relaying from a non-mail process running on the same machine - this is the default configuration of Exchange Server 2003.
Instead you must come to an arrangement with your ISP as to which machines on your side of your connection are permitted to send mail, which machine(s) (typically named a Smart Host) they should send mail to, and how, if required, they should authenticate.
Before you start getting clever ideas about forming your own TCP packets to spoof your address, I'll point out that XP SP2 will not allow you to generate any TCP packets using the raw sockets interface.
Stability. What an interesting concept. -- Chris Maunder
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No, I am definitely not going try any "tricks" like packet mangling. Absolutely not! 
I am talking about an app that would act as sort of a local MUA that would hand off mail to a remote MTA. I have looked at a few open-source apps that already do this. I am just not ready to move my app onto a linux box as I have not yet ventured into Mono territory.
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