C# Discussion Boards - CodeProject

moein.serpico10-Sep-09 23:57

10-Sep-09 23:57

i'm trying to obtain my hardware information through wmi
but i cant obtain ram manufacture
i think PNPdeviceid field in win32_physical memory must be useful
but its appirience is UPSET
please help me

Re: WMI

dan!sh 11-Sep-09 0:19

dan!sh

11-Sep-09 0:19

Manufacturer property in Win32_PhysicalMemory will return that.

It's not necessary to be so stupid, either, but people manage it. - Christian Graus, 2009 AD

Re: WMI

moein.serpico11-Sep-09 0:29

moein.serpico

11-Sep-09 0:29

i knew it
but that field returned no value

Re: WMI

Henry Minute11-Sep-09 0:34

Henry Minute

11-Sep-09 0:34

moein.serpico wrote:
but that field returned no value

How many machines have you tried it on?
If only 1, have you found any application that does return a value for that machine?

It may be that on that particular machine, it is not defined.

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.”

Re: WMI

moein.serpico11-Sep-09 0:38

moein.serpico

11-Sep-09 0:38

yes
its name is everest
i download it from softpedia
please if you know some way
show me
thanks

Re: WMI

Henry Minute11-Sep-09 0:47

Henry Minute

11-Sep-09 0:47

Unfortunately I do not know another way. Frown | :(

It is just that I have one PC where the method suggested by d@nish works, and another where it doesn't.

Re: WMI

moein.serpico11-Sep-09 1:52

moein.serpico

11-Sep-09 1:52

thank you for your help

Re: WMI

stancrm11-Sep-09 0:36

stancrm

11-Sep-09 0:36

check this, whether your bios is too old :

http://www.eggheadcafe.com/aspnet_answers/WindowsXPwmi/Aug2006/post27542384.asp[^]

Re: WMI

Dave Kreskowiak11-Sep-09 4:19

Dave Kreskowiak

11-Sep-09 4:19

There is nothing that says that a manufacturer of a component MUST supply the information for each field in WMI. There nothing commiting manufacturers to supporting WMI at all, so this is no surprise.

The data comes from the memory itself, probabyl though some port communication, not through WMI. I don't know how to get at it though.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007, 2008
But no longer in 2009...

problems about how to cancel auto play from an application

smilefishcc10-Sep-09 23:45

smilefishcc

10-Sep-09 23:45

I am developing an application to play DVD. however When i insert a disk, Windows will automatically try to open that disk either in an explorer window or ask the user what to do with the disk. Then I search in the internet and find two approaches.
The first and simplest is to register the special Windows message "QueryCancelAutoPlay" and simply return 1 when the message is handled. This only works for the current window, and not a background application.

The second approach requires inserting an object that implements the COM interface IQueryCancelAutoPlay COM interface into the Running Object Table.

I used the first one. But sometimes two messages of "QueryCancelAutoPlay" are received and the autoplay window appears again. Here is my code of cancel auto play. Sometimes one message of "QueryCancelAutoPlay" is received and the autoplay window doesn't appear. Sometimes no message of "QueryCancelAutoPlay" is received and the autoplay window appear again.

here is my code of cancel the autoplay window.

IntPtr WndProc(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled)
{
if (g_uQueryCancelAutoPlay == 0)
{
g_uQueryCancelAutoPlay = RegisterWindowMessage("QueryCancelAutoPlay");
}
if (g_uQueryCancelAutoPlay != 0 && (uint)msg == g_uQueryCancelAutoPlay)
{
System.Windows.MessageBox.Show("QueryCancelAutoPlay1"); //Sometime it appears twice, sometimes it doesn't appear
return (IntPtr)1;
}
return IntPtr.Zero;
}

Re: problems about how to cancel auto play from an application

stancrm10-Sep-09 23:48

stancrm

10-Sep-09 23:48

Do you want to disable autorun from windows ?
Use this :

http://autorun.moonvalley.com/enable.htm[^]

Re: problems about how to cancel auto play from an application [modified]

smilefishcc11-Sep-09 0:17

smilefishcc

11-Sep-09 0:17

Thank you. But I want to cancel auto play in my application.

modified on Sunday, September 13, 2009 9:14 PM

Network speed limitation

DeOiD10-Sep-09 23:43

DeOiD

10-Sep-09 23:43

Hi
I'm trying to do a little application to monitor Network traffic and limit the global speed. It's something like NetLimiter.
So, until now, i managed to get all network interfaces and the information for each one(like download and upload speed, bytes send and received,...). I also have information about all network connections and windows processes.
Now, i don't know how to limit the max speed to a given network interface and how to know which process is using which connection.

I know this is not a very good explanation but my english is quite limited.

Thank's

Casting byte arrays to structures in C# [modified]

User 571134810-Sep-09 23:29

User 5711348

10-Sep-09 23:29

I need to cast some byte arrays to structs. The solution I have come up with can be seen in the following example.

/// <summary>
/// Structure for storing a reading and additional data for that reading.
/// </summary>
[StructLayout(LayoutKind.Sequential, Pack = 1)]
internal struct Reading
{
    public float value;
    public reading_info_struct info;

    /// <summary>
    /// Converts reading data to a string.
    /// </summary>
    /// <returns>Reading converted to string.</returns>
    public override string ToString() {
        return value.ToString();
    }

    #region Byte conversions

    public unsafe byte[] ToBytes() {
        byte[] arr = new byte[sizeof(Reading)];
        fixed (byte* parr = arr) {
            *((Reading*)parr) = this;
        }
        return arr;
    }

    public static unsafe Reading FromBytes(byte[] arr) {
        if (arr.Length < sizeof(Reading))
            throw new ArgumentException();

        Reading s;
        fixed (byte* parr = arr) {
            s = *((Reading*)parr);
        }
        return s;
    }

    #endregion
}

Is there some less wicked way to do this? I have a lot of these structures and would like to avoid implementing the byte array conversion code in each of them.
In C/C++ this would be easy..

modified on Friday, September 11, 2009 5:55 AM

modified 12-Feb-22 21:01pm.

Re: Casting byte arrays to structures in C#

Luc Pattyn10-Sep-09 23:38

Luc Pattyn

10-Sep-09 23:38

Hi,

1.
use PRE tags instead of CODE tags, they preserve formatting.

2.
have a look at the Marshal class, e.g. its PtrToStructure() method.

Smile | :)

Luc Pattyn

Have a look at my entry for the lean-and-mean competition; please provide comments, feedback, discussion, and don’t forget to vote for it! Thank you.

Local announcement (Antwerp region): Lange Wapper? Neen!

Re: Casting byte arrays to structures in C#

PIEBALDconsult11-Sep-09 4:30

PIEBALDconsult

11-Sep-09 4:30

That looks OK to me; the class should handle itself.

Crystal report subreport error...

The_Collector10-Sep-09 23:21

The_Collector

10-Sep-09 23:21

I'm currently using VS2005 Crystal report... I cant pass the parameter from Main report to its sub report.... it always encounter an error "@pParameter" value expected

I can successfully display a crystal report with parameters but it will fail when it involves subreports.... I don't understand also why I cant display the above parameter but i noticed it runs successfully because it will display the expected output...

hope to here some1 who can share thier ideas..

Thank you

below is the code:

string reportName = Session["ReportName"].ToString();
            string reportDate = Session["ReportDate"].ToString();
            string reportType = Session["ReportType"].ToString();

            rpt.Load(Server.MapPath("~/Reports/" + reportName.ToString()));

            crConnectionInfo.ServerName = Session["MyServer"].ToString();
            crConnectionInfo.DatabaseName = Session["myDatabase"].ToString();
            crConnectionInfo.UserID = "myUser";
            crConnectionInfo.Password = "myPassword";

            crDatabase = rpt.Database;
            crTables = crDatabase.Tables;

CrystalReportViewer1.ReportSource = rpt;

            ParameterDiscreteValue discreteBranch = new ParameterDiscreteValue();
            ParameterFields paramFields = new ParameterFields();

            ParameterDiscreteValue paramDiscreteBranch = new ParameterDiscreteValue();
            ParameterField paramFieldBranch = new ParameterField();
            paramFieldBranch.Name = "@pBranchCode";
            paramDiscreteBranch.Value = Session["branchCode"].ToString();
            paramFieldBranch.CurrentValues.Add(paramDiscreteBranch);
            paramFields.Add(paramFieldBranch);

            ParameterDiscreteValue paramDiscreteTranDate = new ParameterDiscreteValue();
            ParameterField paramFieldTranDate = new ParameterField();
            paramFieldTranDate.Name = "@pTransactionDate";
            paramDiscreteTranDate.Value = reportDate;
            paramFieldTranDate.CurrentValues.Add(paramDiscreteTranDate);
            paramFields.Add(paramFieldTranDate);

   CrystalReportViewer1.ParameterFieldInfo = paramFields;

            discreteBranch.Value = Session["branchName"].ToString();
            rpt.SetParameterValue("BranchName", discreteBranch);
            discreteBranch.Value = Session["branchaddress"].ToString();
            rpt.SetParameterValue("BranchAddress", discreteBranch);

xxx

Re: Crystal report subreport error...

CoderForEver13-Sep-09 0:48

CoderForEver

13-Sep-09 0:48

hey body to get an answer first put ur code in a codeblock ......... so that other can see it well and give u a reply

Re: Crystal report subreport error...

The_Collector13-Sep-09 16:46

The_Collector

13-Sep-09 16:46

I don't know f u read my post very well or u just don't understand.... i already put the entire code block in my post....

xxx

problem in deployment

gtag10-Sep-09 22:10

gtag

10-Sep-09 22:10

I am using Iexpress.exe to package all installation files(setup.exe,msi,.net framework etc) into single exe.

But the exe is not working.

I have created a batch file including following:
@ECHO OFF
CLS
MD dotnetfx
MOVE /-Y dotnetfx.exe dotnetfx
MOVE /-Y instmsia.ext dotnetfx
MOVE /-Y WindowsInstaller-KB893803-v2-x86.exe dotnetfx
EXIT

And selecting batch file,setup.exe and msi file in iexpress.exe for creating package.

Got the single exe but while installation i am getting:

This installation package could not be opened. Verify that the package exists and that you can access it or contact the application vendor to verify that this is a vlaid windows installer package.

And InstallLog file shows:
The following properties have been set:
Property: [AdminUser] = true {boolean}
Property: [ProcessorArchitecture] = Intel {string}
Property: [VersionNT] = 6.0.1 {version}
Running checks for package '.NET Framework 2.0 (x86)', phase BuildList
Running external check with command 'C:\Users\user\AppData\Local\Temp\VSD12B7.tmp\DotNetFX\dotnetchk.exe' and parameters ''
Process exited with code 1
Setting value '1 {int}' for property 'DotNetInstalled'
Reading value 'Version' of registry key 'HKLM\Software\Microsoft\Internet Explorer'
Read string value '7.0.6001.18000'
Setting value '7.0.6001.18000 {string}' for property 'IEVersion'
The following properties have been set for package '.NET Framework 2.0 (x86)':
Property: [DotNetInstalled] = 1 {int}
Property: [IEVersion] = 7.0.6001.18000 {string}
Running checks for command 'DotNetFX\instmsia.exe'
Result of running operator 'ValueExists' on property 'VersionNT': true
Result of checks for command 'DotNetFX\instmsia.exe' is 'Bypass'
Running checks for command 'DotNetFX\WindowsInstaller-KB893803-v2-x86.exe'
Result of running operator 'ValueExists' on property 'Version9x': false
Result of running operator 'VersionLessThan' on property 'VersionNT' and value '5.0.3': false
Result of running operator 'VersionGreaterThanOrEqualTo' on property 'VersionMsi' and value '3.0': true
Result of checks for command 'DotNetFX\WindowsInstaller-KB893803-v2-x86.exe' is 'Bypass'
Running checks for command 'DotNetFX\dotnetfx.exe'
Result of running operator 'ValueNotEqualTo' on property 'DotNetInstalled' and value '0': true
Result of checks for command 'DotNetFX\dotnetfx.exe' is 'Bypass'
'.NET Framework 2.0 (x86)' RunCheck result: No Install Needed
Running checks for package 'Windows Installer 3.1', phase BuildList
The following properties have been set for package 'Windows Installer 3.1':
Running checks for command 'WindowsInstaller3_1\WindowsInstaller-KB893803-v2-x86.exe'
Result of running operator 'VersionGreaterThanOrEqualTo' on property 'VersionMsi' and value '3.1': true
Result of checks for command 'WindowsInstaller3_1\WindowsInstaller-KB893803-v2-x86.exe' is 'Bypass'
'Windows Installer 3.1' RunCheck result: No Install Needed
Launching Application.
Running command 'C:\Windows\system32\msiexec.exe' with arguments ' -I "C:\Users\user\AppData\Local\Temp\IXP000.TMP\tes.msi" '

Please give me clue where I am going wrong.

Thanks in Advance
Gtag.

Re: problem in deployment

minnie mouse11-Sep-09 16:59

minnie mouse

11-Sep-09 16:59

I would investigate a thing called "Inno Setup" it is extremely good !

How to connect to a website and retrieve the page in C#?

sheateng10-Sep-09 22:00

sheateng

10-Sep-09 22:00

I'm currently doing SMS system with C#.

I have no idea how to retrieve a website(timetable) that requires an input. Anyone can help?

This is my code:

public string generateURL(string id)
{
string siteUri ="http://utptt-ex.petronas.com.my/studentInd.htm";
webrequest wr= webrequest.create(siteUri);
return wr;
}

But i have some bugs. Is there anyone who has better codes to this?

Re: How to connect to a website and retrieve the page in C#?

Md. Marufuzzaman10-Sep-09 22:17

Md. Marufuzzaman

10-Sep-09 22:17

I think you might be trying this using HTTP over TCP/IP.. If so then you need to hit an uri with some parama..and retrieve the acknowledgment.

Try this link

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

Don't forget to click [Vote] / [Good Answer] on the post(s) that helped you.

Thanks
Md. Marufuzzaman

Re: How to connect to a website and retrieve the page in C#?

vivasaayi11-Sep-09 0:53

vivasaayi

11-Sep-09 0:53

Follow the Following code. Pass the number to Download function in string format. You ll get the answer. Worked for me.

using System;
using System.Collections.Generic;
using System.Text;
using System.Net;
using System.IO;

namespace RequestURL
{
    class Program
    {
        static void Main(string[] args)
        {
            string response = Download("0");//Give the Number here
            Console.WriteLine(response);
            Console.ReadLine();
        }

        private static string Download(string number)
        {
            string text = "http://utptt-ex.petronas.com.my/Reporting/Individual?identifier=" + number + "&B1=View+Timetable&objectclass=students&idtype=id&width=100&periods=1-30";
            string responseFromServer = "";

            try
            {
                WebRequest request = WebRequest.Create(text);
                request.Credentials = CredentialCache.DefaultCredentials;

                HttpWebResponse response = (HttpWebResponse)request.GetResponse();

                Stream dataStream = response.GetResponseStream();
                StreamReader reader = new StreamReader(dataStream);

                responseFromServer = reader.ReadToEnd();

            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
            }
            return responseFromServer;

        }
    }
}

Re: How to connect to a website and retrieve the page in C#?

sheateng27-Sep-09 21:43

sheateng

27-Sep-09 21:43

Thank you for the codes, can I save the response from the web into a file?

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