Hi, your subject line and message body do not match: what is it you want to identify, the port to which something is attached, or that something itself? in any way, it will need some cooperation from the attached device. Here are the two basic ways to get information: 1. through the control lines Some devices, when powered and enabled, pull one or several control lines (see SerialPort properties CDHolding, CtsHolding, DsrHolding) 2. by actually communicating send commands to the device and look for the responses, if they fit your expectations chances are the expected device is on the port you are talking to. If you want to find the port, you probably need to loop over all available ports (see SerialPort.GetPortNames() :) Luc Pattyn [Forum Guidelines] [My Articles] Sorry for any delays in replying, I currently don't always get e-mail notifications.

premkamalg wrote: hi , i want to datagrid control in C#.net for storing some values on a particular colum and row plz give me a simple program for that You don't say whether this is for WinForms or ASP.NET Look here for ASP.NET[^] or here for WinForms[^] Michael CP Blog [^] Development Blog [^]

Select the project, Right Click -> Properties On the properties page under the resource section there is an option for Icon. set that by browsing to the ico file. hope that works for u. Thanks & Regards, Pramod "Everyone is a genius at least once a year"

You really need to be more specific. Are you wanting to read and write data onto a USB flash drive, you merely have to address it as any other drive. Otherwise, you need to access it through the API of the driver, or write your own driver for the hardware. Check with the hardware manufacturer for a development kit.

Did you try using the NextSibling[^] property? Once you have reference to the <code>XmlNode</code> representing comm, just do XmlNode nextNode = node.NextSibling; Regards Senthil _____________________________ My Blog | My Articles | WinMacro

hi, thanks for reply i have one program that contains some functions, i want to use that function in my c#.net2003 it's is possible or not plz give suggestion or send any help full links for that . u know how top write serialport programming in C#.net2003 and framework 1.1 using win32 API's plz send sample code for that Thanks

Hi Thanks Iam new to using win32 API for serial communication. Plz help me I want to send one string("Hello") to COM port port is COM2 baud rate 9600 parity None Data bit 8 Stop bit 2 Now I want write program in C#.net 2003 and framework1.1 Plz give me a small program for this It’s more useful in my application Plz Thanks Hi, Thanks, if u think it's good. otherwise sorry.

premkamalg wrote: DoSomething(new string[] { "A text line.", "Another line." }); this is just a different way to declare and initialize a string. you could reach the same thing this way: string[] strArr = new string[2]; string[0] = "a text line"; string[1] = "another line"; DoSomething(strArr); clear now?

child node VALUE, didnt you ask the number of nodes, value is somehow different thing.

Did you see Com On codeproject? WhiteSky

be thankful is good , but not more than usual !!! :laugh:;)

Thanks Hi, Thanks, if u think it's good. otherwise sorry.

remember 1 thing that the computer will be there till thje end of the world and as per human nature he will keep growing as per time so if u r working I am a little worried about that comment, they said the same about million other products that have now fallen by the wayside!! Just because the computer may be around for another 10 years or so. It does not necessarily mean the demand for programmers will be high. I think, that if you're wondering about the demand for the future, is it is best to keep to a platform neutral language, C++ , but also it entirely depends what you end up working as. Computer landguages and use tend to be product/market/platform specific. I for one am impressed by the recent increase in Javascript that is encroaching in the market, where interpretted languages is enjoying a slight surge again!! "a fool will not learn from a wise man, but a wise man will learn from a fool" "It is hard to fail, but it is worse never to have tried to succeed." - Theodore Roosevelt "Success is going from failure to failure without losing your enthusiasm." - Winston Churchill My Website || My Blog

Well, if you want to access the add node, just drop the rest of the XPath - /details/add If you want to get all the addr nodes, name them all addr, as I advised you to do in the first place. Christian Graus - Microsoft MVP - C++ Metal Musings - Rex and my new metal blog

It depends were the value is, a node value or an attribute. Look up SelectSingleNode, there are plenty of examples available. only two letters away from being an asset

Hello To access any port -Serial, LPT, USB, etc...- or device -eg. modem- in C3 you follow these steps: 1- Call Windows API CreateFile() function with the device name as the filename. ie. CreateFile("usb0001") for example. 2- Get The handle of the created file. 3- Supply that handle to the constructor of a FileStream object. 4- Use that FileStream object to read and write from/to the port/device. And no, you can't construct a FileStream from the port directly. Sorry! Regards:rose: