C# Discussion Boards - CodeProject

Re: how to use parse keyword in c#?

Colin Angus Mackay27-Jun-07 5:16

Colin Angus Mackay

27-Jun-07 5:16

Er nikesh yadav wrote:
it is written something like this

Sorry, I don't see why anyone would need to ask a question like this. Why didn't you read the documentation and see for yourself? Really, this question smacks of sheer laziness.

Upcoming events:
* Glasgow: Mock Objects, SQL Server CLR Integration, Reporting Services, db4o, Dependency Injection with Spring ...
* Reading: Developer Day 5

Ready to Give up - Your help will be much appreciated.

My website

Re: how to use parse keyword in c#?

originSH27-Jun-07 6:11

originSH

27-Jun-07 6:11

As does 99% (statistic provided by my arse) of the questions around here Sleepy | :zzz:

Re: how to use parse keyword in c#?

Luc Pattyn27-Jun-07 7:32

Luc Pattyn

27-Jun-07 7:32

Right.
So why answer such questions ?

public void replyToQuestion() {
    if (lazy question in topic && nothing useful in body) {
        throw up;           //dont reply
    }
    ....
}

Luc Pattyn

[My Articles] [Forum Guidelines]

Re: how to use parse keyword in c#?

originSH28-Jun-07 6:06

originSH

28-Jun-07 6:06

I don't :P

Or I reply with either a sarcastic answer or deliberatly misinterprit what the question is :P

asif_aslam wrote:
why we using properties

Origin42 wrote:
Because coding outside means getting wet :P

(well it does in this country anyway)

Help quickly plz

mezo_2227-Jun-07 4:59

mezo_22

27-Jun-07 4:59

i am writing a code in C# to use the pda(windows ce)to send messages in a TCP\IP protocol to server using a wifi connection can any one know a refrence that can help me plz any suggestion is approved

Best Wishes

Re: Help quickly plz

Colin Angus Mackay27-Jun-07 5:18

Colin Angus Mackay

27-Jun-07 5:18

mezo_22 wrote:
i am writing a code in C# to use the pda(windows ce)to send messages in a TCP\IP protocol to server using a wifi connection can any one know a refrence that can help me plz any suggestion is approved

Reference to what?

Try "Sockets" - is that enough of a reference? (It's in the System.Net namespace if I recall correctly)

Re: Help quickly plz

mezo_2227-Jun-07 5:23

mezo_22

27-Jun-07 5:23

thanks for ur quick answer to my question i know a bout sockets but what i meant by refrence is a book to read in about wifi connection programming in C# and if it is different than the regular ethernet programming thanks again.

Best Wishes

Re: Help quickly plz

originSH27-Jun-07 6:13

originSH

27-Jun-07 6:13

The physical network doesn't matter, it's the network protocol.

i.e. your using tcp/ip whether its in a wire or in the air.

Re: Help quickly plz

Guffa27-Jun-07 6:24

Guffa

27-Jun-07 6:24

originSH wrote:
your using tcp/ip whether its in a wire or in the air.

...or using pigeons[^] Smile | :)

---
single minded; short sighted; long gone;

Re: Help quickly plz

Luc Pattyn27-Jun-07 7:34

Luc Pattyn

27-Jun-07 7:34

they are known to increase latency.

Luc Pattyn

[My Articles] [Forum Guidelines]

Re: Help quickly plz

Dave Kreskowiak27-Jun-07 7:47

Dave Kreskowiak

27-Jun-07 7:47

Not where I work. Even with 9Mbit comming out of this place, there are two things faster than our network - pigeons and sneakers.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007

USB port in C#

Reza Shojaee27-Jun-07 4:58

Reza Shojaee

27-Jun-07 4:58

Hi to every developers
I want to send data from USB port to another device.
I using C# .Net 2005.
if you have any experience about this problem, Help me,Please.

Re: USB port in C#

Dave Kreskowiak27-Jun-07 5:24

Dave Kreskowiak

27-Jun-07 5:24

The USB port is anything but. It'a a connector for a serial BUS. This "port" does not work like a serial or parallel port. It's not really directly addressable if you want to talk to a specific device on the bus.

You communicate with the devices on the bus using the methods made available buy the drivers for that device. Without knowing what the device is, there's really nothing anyone can tell you, except consult any possible SDK documentation on that device.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007

Getting Processsor ID without ManagementClass

MrEyes27-Jun-07 3:58

MrEyes

27-Jun-07 3:58

Hello all,

The following code will retrieve a unique processor ID (for the first processor) using the .NET Frameworks System.Management.ManagementClass class:

public static string GetCPUId()
{
    string cpuInfo = string.Empty;

    ManagementClass mgr = new ManagementClass("Win32_Processor");
    ManagementObjectCollection mgrCollection = mgr.GetInstances();

    foreach (ManagementObject mgrItem in mgrCollection)
    {
        if (cpuInfo == string.Empty)
        {
            cpuInfo = mgrItem.Properties["ProcessorId"].Value.ToString();
            break;
        }
    }

    return cpuInfo;
}

However I need to do the same thing using DllImport/Interop. Does anybody know how to do this?

Re: Getting Processsor ID without ManagementClass

Luc Pattyn27-Jun-07 7:17

Luc Pattyn

27-Jun-07 7:17

MrEyes wrote:
The following code will retrieve a unique processor ID

According to
this web page[^] the processorID is not unique at all.
You are confusing with the processor serial number which might be available through the
UniqueID field of WMI, but this feature may be absent or disabled (in which case
WMI returns a null value). The default state is: disabled.

To access such features without WMI you need low-level code, say C + assembly,
that executes the CPUID instruction and returns some register values; plus of course
the necessary P/Invoke stuff to interface to the native code.

For more info on CPUID, search for "Intel CPUID" and you will find utilities and
documentation (Intel App Note 485).

Smile | :)

Luc Pattyn

[My Articles] [Forum Guidelines]

form minimized

topksharma198227-Jun-07 3:30

topksharma1982

27-Jun-07 3:30

Hi All,
i have a problem while minimizing a form , actually i have a form and in this form i have a button and on the button click event i m opening a new form but when i minimize the second form it is also minimizing the first form , how can i fix this problem .
Please help me.........

Praveen Sharma

Re: form minimized

giddy_guitarist27-Jun-07 4:21

giddy_guitarist

27-Jun-07 4:21

Just a wild guess.....

topksharma1982 wrote:
i m opening a new form but when i minimize the second form it is also minimizing the first form , how can i fix this problem .

If you're using Form.ShowDialog(); , use Form.Show() instead.

Gideon

Re: form minimized

topksharma198227-Jun-07 4:43

topksharma1982

27-Jun-07 4:43

thanx a lot,
but is there any way with ShowDialog() also.

Praveen Sharma

Re: form minimized

topksharma198227-Jun-07 5:05

topksharma1982

27-Jun-07 5:05

no its not a MDI form .

Praveen Sharma

Re: form minimized

Luc Pattyn27-Jun-07 7:37

Luc Pattyn

27-Jun-07 7:37

I dont think so, ShowDialog() exists to make the second form stay on top of the first;
minimizing the second without minimizing the first would defy that purpose.

Smile | :)

Luc Pattyn

[My Articles] [Forum Guidelines]

Deleting a dynamically created Excel file

snir_ya27-Jun-07 3:20

snir_ya

27-Jun-07 3:20

Hi all,

I've seen a lot of posts over the web about this issue but not even one(!) prudent solution.

I'm creating an excel file. Filling in some data, saving the excel and then when i'm trying to delete it i get the following exception:

"The process cannot access the file 'c:\temporaryFiles\ANLsnir_yarom_276200717848.xls' because it is being used by another process. "

Here's a code extract of the problem, a lot of progarammers would appriciate an answer for this riddle:

Excel.Application excelApp = new new Excel.Application();
Excel._Workbook workbook = (Excel._Workbook)excelApp.Workbooks.Add(Type.Missing);
Excel._Worksheet worksheet = (Excel._Worksheet)workbook.ActiveSheet;
//write into the excel and...
workbook.Close(ANL_Excel.vk_true, filePath, ANL_Excel.vk_false);
excelApp.Save(filePath);
excelApp.Quit();
Process[] pProcess;
pProcess = System.Diagnostics.Process.GetProcessesByName("Excel");
pProcess[0].Kill();

File.Delete(filePath);

Many Thanks,

Snir Yarom.

Re: Deleting a dynamically created Excel file

Jimmanuel27-Jun-07 3:55

Jimmanuel

27-Jun-07 3:55

two observations about your code snippet:
1. only the first process returned by GetProcessesByName is being killed; what if there is more than one EXCEL.exe?
2. none of the Excel COM objects are being released. Don't forget to Marshal.ReleaseComObject(aComObject); all those Excel objects being created.

hope this helps . . .

Re: Deleting a dynamically created Excel file

snir_ya27-Jun-07 5:28

snir_ya

27-Jun-07 5:28

Thanks for the reply.
I've implmeneted your observations:

Process[] pProcess;<br />
pProcess = System.Diagnostics.Process.GetProcessesByName("Excel");<br />
foreach(Process prcs in pProcess)<br />
            {<br />
                if (prcs != null)<br />
                    prcs.Kill();<br />
            }             <br />
            //pProcess[0].Kill();<br />
<br />
Marshal.ReleaseComObject(excelApp);

But still, i get the same exception when i'm trying to delete this file.
Any suggestions?

Thanks.

Re: Deleting a dynamically created Excel file

mnaveed27-Jun-07 5:55

mnaveed

27-Jun-07 5:55

// Need this to clean up all refs
workbook.Close(null,null,null);
excelApp.Workbooks.Close();
excelApp.Quit();

System.Runtime.InteropServices.Marshal.ReleaseComObject (excelApp);
System.Runtime.InteropServices.Marshal.ReleaseComObject (worksheet);
System.Runtime.InteropServices.Marshal.ReleaseComObject (workbook);
worksheet=null;
workbook=null;
excelApp= null;
GC.Collect(); // final cleanup!

then delete your file

Nav.

How to create slip definition files in C#

AR Reddy27-Jun-07 2:54

AR Reddy

27-Jun-07 2:54

Hi,

How to create Slip Definition Files (.sdf) files in C#. If anybody having samples, please give me. Thanks in advance.

AR Reddy

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.