Need help to find nearest number above another from text file - C# Discussion Boards

Re: Compare values within a List against another value

10-Mar-10 2:57

The MSDN documentation contains all the information, in particular it describes List<T>.Find() and List<T>.Contains

Smile | :)

Luc Pattyn [Forum Guidelines] [Why QA sucks] [My Articles]

I only read code that is properly formatted, adding PRE tags is the easiest way to obtain that.

suprsnipes10-Mar-10 2:59

suprsnipes

10-Mar-10 2:59

Thanks Luc I will check it out. Appreciate the help Smile | :)

Need help to find nearest number above another from text file

suprsnipes9-Mar-10 15:04

suprsnipes

9-Mar-10 15:04

Hi,

I've had to go back to the drawing board and I need some help. Below is the code I am using to read a text file which contains around 20 numbers.

The readText Print works as expected showing all of the numbers within the text file.

I need to Print the nearest number (within the text file) that is above another which is a double and I'm not quite sure how?

{
           readText = File.ReadAllText("C:\\PIn.txt");

           string [] split = readText.Split(new Char [] {' '});

           Print(readText);

       }

Re: Need help to find nearest number above another from text file

Not Active9-Mar-10 15:25

Not Active

9-Mar-10 15:25

Am I missing something?

1) Find target number in array
2) Get next element in array

I know the language. I've read a book. - _Madmatt

Re: Need help to find nearest number above another from text file

Luc Pattyn9-Mar-10 15:30

Re: Need help to find nearest number above another from text file

9-Mar-10 15:30

there are three steps:
- you come up with a good algorithm
- you come up with reasonable code, implementing said algorithm
- and if you then have a specific problem and a specific question, you post algorithm, code, and problem description on CP, and someone helps you out.

Hmmm | :|

Luc Pattyn [Forum Guidelines] [Why QA sucks] [My Articles]

I only read code that is properly formatted, adding PRE tags is the easiest way to obtain that.

Richard MacCutchan9-Mar-10 21:30

Richard MacCutchan

9-Mar-10 21:30

You already have the answer to this question here[^]. I tried your code and it gives the correct result; what has changed since yesterday?

txtspeak is the realm of 9 year old children, not developers. Christian Graus

Getting Mac Address of a remote PC with C# without Admin Privileges

alias479-Mar-10 14:19

alias47

9-Mar-10 14:19

I have been looking for days as to how to get a Mac Address of a remote PC with C# without Admin Privileges. I use it for validation. The exe can only be run from one PC. First time the app is run, the MAC Address of the Computer where the app is running is recorded. Every time someone logs, the MAC Address of the Computer where the app is running from is checked. If the app is on a remote PC, the user needs Admin privileges to get the MAC Address.

1. WMI needs admin access.

2. nbtstat -a ipAddress

//When you try to run the nbtstat command with a command-line switch such as nbtstat -a remotename in Microsoft Windows XP or in Microsoft Windows Server 2003, the command does not run. Additionally, you receive the following error message:
//Failed to access NetBT Driver - NetBT may not be loaded.
//CAUSE: This issue occurs because users without administrator rights, including power user...This issue occurs because users without administrator rights, including power users, do not have sufficient permissions to run nbtstat when the user includes a command-line switch.

3. SendARP (iphlpapi.dll)
if (SendARP(RemoteIPAddress, 0, macByteArray, ref macAddrLen) != 0)

returns macByteArray==null

4.GetIpNetTable (iphlpapi.dll) returns null

Any other ideas?

warning

Luc Pattyn9-Mar-10 14:51

pinvokes from windows service

9-Mar-10 14:51

Windows copies the physical MAC address from its hardware register to some software variable, which you can observe in many ways and modify in some ways (I don't recall all the details); the modified value remains in effect until the network gets disabled/re-enabled or disconnected/reconnected (not sure which). So you can not really trust it, unless you do a disable/re-enable (or...) from within your code, which is slow and probably hard to do.

Smile | :)

Luc Pattyn [Forum Guidelines] [Why QA sucks] [My Articles]

I only read code that is properly formatted, adding PRE tags is the easiest way to obtain that.

jacobjordan9-Mar-10 14:02

jacobjordan

9-Mar-10 14:02

I have a .NET 1.1 (for compatibility reasons) application that runs as a windows service. I have successfully ran it, except the only problem is im not able to invoke methods in the user32 dll i need to call. I have ran the exact same code as a normal process, and this doesn't seem to be happening. Ive also isolated and ran portions of the code just to tell if the invocations were even successful, and they weren't, so i know it's not a problem with my applications code. As far as i can guess running as a service changes some sort of permissions or something that doesn't allow me to invoke these methods. Anyway im not an expert on the windows os, so before i make myself sound even dumber im gonna shut up.

One of the main causes of the fall of the Roman Empire was that, lacking zero, they had no way to indicate successful termination of their C programs.
-Robert Firth

Luc Pattyn9-Mar-10 14:10

9-Mar-10 14:10

Hi,

jacobjordan wrote:
user32 dll

jacobjordan wrote:
doesn't allow me to invoke these methods

which functions exactly? anything related to user interaction? (a service has no desktop, no user, by default)

Smile | :)

Luc Pattyn [Forum Guidelines] [Why QA sucks] [My Articles]

I only read code that is properly formatted, adding PRE tags is the easiest way to obtain that.

DaveyM699-Mar-10 14:16

9-Mar-10 14:16

Add some exception handling to your code around the PInvoke calls and write to the error log in the catch blocks and you will be able to tell exactly what the problem is.

If it's a permission issue then you may need to specify a user to run the service as by setting the System.ServiceProcess.ServiceAccount[^]

Dave

Binging is like googling, it just feels dirtier. (Pete O'Hanlon)

BTW, in software, hope and pray is not a viable strategy. (Luc Pattyn)
Why are you using VB6? Do you hate yourself? (Christian Graus)

jacobjordan9-Mar-10 14:41

jacobjordan

9-Mar-10 14:41

The methods im invoking are GetAsyncKeyState, GetWindowText, and GetForegroundWindow, all of which return values. No exceptions are being thrown when i invoke, only when i run my app as a service they return a value of 0 (since all return either ints, shorts, or intptrs). Obviously the methods aren't being called for some reason.

One of the main causes of the fall of the Roman Empire was that, lacking zero, they had no way to indicate successful termination of their C programs.
-Robert Firth

Luc Pattyn9-Mar-10 14:53

9-Mar-10 14:53

jacobjordan wrote:
GetWindowText, and GetForegroundWindow

those are GUI functions, your service by default has no user and no desktop, hence no GUI.
You must tell it somehow to allow user interaction and specify the account type. I don't know the details.

Smile | :)

Luc Pattyn [Forum Guidelines] [Why QA sucks] [My Articles]

I only read code that is properly formatted, adding PRE tags is the easiest way to obtain that.

DaveyM699-Mar-10 15:20

9-Mar-10 15:20

As Luc said, these are GUI functions. As the service isn't using the logged in user(s) desktop(s) these functions will not suceed or will fail gracefuly.

Why does this need to be a service? An app minimized to the tray would be able to do the job perfectly.

jacobjordan9-Mar-10 15:47

jacobjordan

9-Mar-10 15:47

I need to have it running no matter who is logged on, or if nobody is logged on. I know there are probably other ways of doing that, but creating a service was the first thing that came to mind. I would love it if you could suggest and easier way.

One of the main causes of the fall of the Roman Empire was that, lacking zero, they had no way to indicate successful termination of their C programs.
-Robert Firth

DaveyM699-Mar-10 16:00

9-Mar-10 16:00

I see your logic for a service but services are non GUI in the sense that they have no UI of their own and can't (since Vista) interact directly with a user's UI.

jacobjordan wrote:
or if nobody is logged on

That makes no sense as those calls will be useless.

jacobjordan wrote:
no matter who is logged on

You can place the path to your exe in HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run and your app will run at start up for all users - you can run it minimized to tray, or invisible by setting the Visible of the main form and ShowInTaskbar to false.

Luc Pattyn9-Mar-10 16:02

9-Mar-10 16:02

Yes, sounds like a service.
However, what is a service going to do with some WindowText if it doesn't even know if anyone is logged in?

Smile | :)

Luc Pattyn [Forum Guidelines] [Why QA sucks] [My Articles]

I only read code that is properly formatted, adding PRE tags is the easiest way to obtain that.

DaveyM699-Mar-10 15:26

Sender as form access class propertys

9-Mar-10 15:26

Found a good blog here[^] that may help you rethink and workaround your problem

Member 69748219-Mar-10 12:29

Member 6974821

9-Mar-10 12:29

Im writing a class to be called by different forms, Ive got the forms name using the sender but im having trouble saving this to the class because i don't know what form is calling the function.

class Login
    {
    //strings and ints here
    Form CurrentForm;

    if (Sender is form1)
    {
    form1 temp = (form1)Sender;
    //Dosnt work as CurrentForm isn't of type form1 
    this.CurrentForm = temp;
            }

Is there any way to declare a new class variable at runtime such as form1 CurrentForm;

Thanks

Re: Sender as form access class propertys [modified]

Luc Pattyn9-Mar-10 12:36