Dummy Math Questions - C# Discussion Boards

Re: Not sure this is the place, but have a C# app for server 2k3

22-May-07 1:58

I wrote an application in c#, basically allows reading and editing of an INI file on a Windows 2003 server machine. On my development PC the app runs and works great. I packaged it up and deployed it to a test server and installed. No problems.

Clicking the link to run the app, nothing happens. You double click, get an hourglass for a second, then nothing.

Do I need some kind of permissions change or do I need to somehow sign my app to run on 2k3??

Also if there is a better board to post this here (I didn't see any server specific ones) let me know.

kubben22-May-07 3:08

kubben

22-May-07 3:08

I am guessing that the server you are trying to run it on is not trusted. I wrote an article on this:
http://www.codeproject.com/dotnet/Using_MSI_or_a_strong_nam.asp[^]

Hope that helps.
Ben

Re: Not sure this is the place, but have a C# app for server 2k3

StevenBee22-May-07 3:41

Re: Not sure this is the place, but have a C# app for server 2k3

22-May-07 3:41

Ben, this is a very well written article. However, I am not trying to install the app from the server, I am trying to run the installed app ON the server. To be specific I install the app onto the server that hosts the ini files that need to be maintained. Once there our admins will TS over to the server to run this app for editing and verifying the INI files in question.

However, the installed app does not run on the server. It gives no error it just doesn't run. I am sure it is something similar to this but not this exactly.

Can anyone help?

kubben22-May-07 4:06

kubben

22-May-07 4:06

Ok I need to have a better understanding.
It sounds like this is a windows app. Is that true?
If it is a windows app then someone has to be logged on to the server to run the windows app.
So you are saying you are logging or remoting into the server, and trying to run the app, but nothing happens?

I thought you were saying you were doing something like:
\\servername\appfolder\app.exe
If you were doing this the application is running on your PC not the server. Then my article would fix for running an exe from a server on your local PC.

Anyway, if this is something you want to run with no one logged into the server you need to create a windows service. The windows service can be set up to run at a certain time and have certain login to it has the correct rights.

I would guess currently whoever is trying to run the app on the server doesn't have rights to the folder the ini files are in, but that is just a guess.

Ben

Re: Not sure this is the place, but have a C# app for server 2k3

StevenBee22-May-07 5:42

22-May-07 5:42

Ben, this windows app would be running ON the server, not the admins PC.

However, I figured out the problem:

No ASP.NET installed on the server. The sticky part is that I can't install ASP.NET without also installing IIS. That is a violation of policy (this is a file server with SQL databases). So I can't install ASP.NET.

Is this true (I am not a server expert by any stretch)? That I need ASP.NET to execute windows apps.

Steven

Dummy Math Questions

matthias s.22-May-07 1:41

matthias s.

22-May-07 1:41

hello,

i'm trying to cope with a couple of math calculations i need to do within my c# application. i've got two problems: first, i have difficulties translating the vocabulary to english and second, i don't know how to code it in c#.

two things i require:

1. how do I get the root of n?
2. how do I calculate the reciprocal of a number? and what is the reciprocal anyway?

and yes, i've been to school. but this is a long time ago. thanks for your help!

/matthias

I love deadlines. I like the whooshing sound they make as they fly by.
[Douglas Adams]

Giorgi Dalakishvili22-May-07 1:47

Giorgi Dalakishvili

22-May-07 1:47

matthias s. wrote:
how do I get the root of n?

You can use Math.Pow method

matthias s. wrote:
how do I calculate the reciprocal of a number?

matthias s. wrote:
and what is the reciprocal anyway?

Well I believe first you have to find out what reciprocal is and then start coding it. So why don;t you google?

matthias s.22-May-07 2:02

matthias s.

22-May-07 2:02

thanks for your help on the first part. ad google: i did. but still, i don't understand what i've found. the explanations are cluttered with different approaches on how to deal with reciprocal - this is why i asked.

to clear things up a little, I'd like to mention, that I'm trying to do what is written here:

"To convert this value to ordinary 'Shutter Speed'; calculate this
value's power of 2, then reciprocal."

i'm just in need of a simple answer of somebody, who shares a household with reciprocal and c# Wink | ;)

/matthias

I love deadlines. I like the whooshing sound they make as they fly by.
[Douglas Adams]

Giorgi Dalakishvili22-May-07 2:11

Giorgi Dalakishvili

22-May-07 2:11

Here is the definition of reciprocal: http://www.mathleague.com/help/fractions/fractions.htm#reciprocal

StevenBee22-May-07 2:13

22-May-07 2:13

http://en.wikipedia.org/wiki/Reciprocal_%28mathematics%29

1/X so you would take the shutter speed, square it, then divide 1 by it.

CPallini22-May-07 2:18

CPallini

22-May-07 2:18

For reciprocal see here [^].

And of course you don't need Pow to take the square of a number, just multiply it by itself.

Perhaps what you need is:

ShutterSpeed = 1.0/(OriginalValue*OriginalValue);

Please note that some care must be taken when OriginalValue approaches zero...

Smile | :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

StevenBee22-May-07 2:21

22-May-07 2:21

Maybe wrap it in a

if (OriginalValue != 0)
{
}

test.

CPallini22-May-07 3:07

CPallini

22-May-07 3:07

StevenBee wrote:
if (OriginalValue != 0)
{
}

Maybe you still got a divide by zero exception!
Big Grin | :-D

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

Giorgi Dalakishvili22-May-07 2:29

Giorgi Dalakishvili

22-May-07 2:29

CPallini wrote:
And of course you don't need Pow to take the square of a number, just multiply it by itself.

I thought he meant n-th root from number Smile | :)

matthias s.22-May-07 8:31

matthias s.

22-May-07 8:31

thanks a lot. i'll try that tonight.

/matthias

I love deadlines. I like the whooshing sound they make as they fly by.
[Douglas Adams]

generate and send snmp trap

CPallini22-May-07 9:38

CPallini

22-May-07 9:38

So...Have a nice night!
Big Grin | :-D

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

EvilInide22-May-07 1:34

EvilInide

22-May-07 1:34

I have to generate and send snmp trap from my application/service on-start or on-stop in c#.net. I have been googled more than 15 days but unable to get any idea how to do this.

I am trying with winsnmp.dll and wmi,but I am newcomer to these and ultimately gets failure.

plz help how can i achive this

yours
ashis Smile | :)

ashis

Custom Collection Class

SakthiSurya22-May-07 1:18

SakthiSurya

22-May-07 1:18

Hi,

I want to create a Custom collection Class

Where i can store values by just

CollectionObject.Key=Value;

Is it Possible to do like this.

If not is it possible to create dynamic properties to a class.

Please Help me

Thanks

Sakthi.

Martin#22-May-07 1:40

Martin#

22-May-07 1:40

Hello,

You mean like this?

public object Key
{
    get
    {
        return this.List[List.Count-1]; //Allways returns the last member of the List
    }
    set
    {
        if(!this.List.Contains(value))
        {
            this.List.Add(value);
        }
    }
}

All the best,

MArtin

SakthiSurya22-May-07 1:56

SakthiSurya

22-May-07 1:56

Hi Martin,

Thanks for your reply.

CollectionObject.Key = Value;

Key here refers the key to be stored in the collection class for

Reference.

Forexample

Dictionary<string,string> MyDict=new Dictionary<string,string>()

MyDict[Key] = Value;

Instead of using [](Square Braces i just want to use dot(.) Symbol.

Regards,
Sakthi.

Martin#22-May-07 2:03

Martin#

22-May-07 2:03

Apart from, that I don't understand what you mean.
Why would you whant to do something like this? Confused | :confused:

Tim Paaschen22-May-07 2:26

Tim Paaschen

22-May-07 2:26

This is a really strange idea! All possible keys must be known at compile-time.
However, technically this can be achieved by adding a Dictionary member to you custom Collection and provide a property for each possible key that just wraps the indexer of the dictionary.

Regards,
Tim