C# Discussion Boards - CodeProject

Hi how i can check the Service Exist or Not

wasimsharp6-Jul-08 20:40

6-Jul-08 20:40

hi i want to Install new Window service but i want to check that Either this service is Exist or not if it Exist then do not install it
How i can check that it Exist

wasim khan

Re: Hi how i can check the Service Exist or Not

stancrm6-Jul-08 21:28

stancrm

6-Jul-08 21:28

if you create an installer for your service, it will be detected automatically. you can set to: "warn if service exists" or "replace service with new version".

Re: Hi how i can check the Service Exist or Not [modified]

Samer Aburabie7-Jul-08 2:45

Samer Aburabie

7-Jul-08 2:45

In order to check wether your service is exist or not by code not using an installer, you can use the System.Management namespace, in order to do it the following example shall help:

string serviceCaption="My Service Caption";
ManagementObjectSearcher searcher = new ManagementObjectSearcher
    ("SELECT * FROM Win32_Service WHERE Caption = "+"serviceCaption);
            foreach (ManagementObject service in searcher.Get())
            {
               //Service Exist               
            }

or you can use the service name instead, notice that the difference between the caption and the name is that caption is as the full length name (short description) while the name is shorty non-alphanumeric:

string serviceName="MyServiceName";
ManagementObjectSearcher searcher = new ManagementObjectSearcher
    ("SELECT * FROM Win32_Service WHERE Name = "+"serviceName);
            foreach (ManagementObject service in searcher.Get())
            {
               //Service Exist               
            }

Notice again that you should add a reference to the System.Management dll in your project.

Sincerely Samer Abu Rabie

Software Engineer

modified on Monday, July 7, 2008 8:53 AM

Complete Novice Question

killabyte6-Jul-08 19:56

killabyte

6-Jul-08 19:56

I am playing around with C# seems to be the buzz word lately so i am having a look. Feeling uncomfortably lost outside my C for Comfort zone.

i was trying to play around with simple input events IE mouse/keyboard

using System.Windows.Input

seems to be the logical place to start, but here is where i get in trouble i cant gain access to that namespace for some reason. i am using MSVS 2005.

Do u need to set permissions with the .NET configuration Mgr in Admin Tools?

i am a tad lost as u can see Unsure | :~

any help appreciated

Re: Complete Novice Question

J a a n s6-Jul-08 21:03

J a a n s

6-Jul-08 21:03

The System.Windows.Input[^] namespace is available from .Net 3.0 onwards. You wont be able to access it in your VS2005.

If you want to try WPF you can go for the express versions of VS2008.

*jaans

Re: Complete Novice Question

killabyte6-Jul-08 22:55

killabyte

6-Jul-08 22:55

Ahh excellent thanks for that, i installed .NET 3.5 and was hoping that VS2005 would be able to access everything from the framework =( bummer.

Thanks for your answer Big Grin | :-D

Setup and deployment

D i x y6-Jul-08 19:36

D i x y

6-Jul-08 19:36

Hello Friends,
I am making a setup wizard for my application i have made it successfully its work great.
Now i want that when my application install then after that it will ask for restart the system now or later.

How can i achieve this please help me.

Thanks in Advance

Re: Setup and deployment

stancrm6-Jul-08 20:32

stancrm

6-Jul-08 20:32

search it in google. you need a tool from microsoft called orca to do that.

Help for Crystal Report

psohid6-Jul-08 17:38

psohid

6-Jul-08 17:38

I could not use crystal report in .NET application.I would be grateful
if anybody give me proper guideline to use crystal report in C#.NET

Re: Help for Crystal Report

Christian Graus6-Jul-08 17:49

Christian Graus

6-Jul-08 17:49

Google broken where you live ? This is a top level question - you need to read a book or some articles. No forum answer will cover it in the detail you apparently need,.

Christian Graus

Please read this if you don't understand the answer I've given you. If you're still stuck, ask me for more information.

Re: Help for Crystal Report

D i x y6-Jul-08 18:26

D i x y

6-Jul-08 18:26

See these links

http://www.c-sharpcorner.com/UploadFile/john_charles/CrystalReportsNET06052008140937PM/CrystalReportsNET.aspx[^]

http://www.devarticles.com/c/a/C-Sharp/Creating-Graphical-Reports-With-Crystal-Reports-in-.NET/[^]

Get All IP Addresses and MAC Addresses

kikijas6-Jul-08 16:38

kikijas

6-Jul-08 16:38

I am writing a program that run on Server 2000 (DHCP) using C# .Net. I wanted to collect all the IP addresses and MAC addresses of the machines that connected to this server. Anyone who can suggest on how to do this? Thank you.

Re: Get All IP Addresses and MAC Addresses

kikijas7-Jul-08 15:03

kikijas

7-Jul-08 15:03

Hi, anyone who can help? I need this solution urgently. I have tried many methods but only able to get the local machine IP and MAC address. May be I should rephrase my question to make it clear. I have a DHCP server. there will be alot of PC connected to this server through LAN. I want to retieve the IP and MAC address of all these PCs. How can I do that?

path

nelsonpaixao6-Jul-08 13:30

nelsonpaixao

6-Jul-08 13:30

how can i simplify a path?

c:\folderA\folderB\folderC\fileA.txt

can i do this?
.\folderC\fileA.txt

thanks $Shucks | :-\$

Re: path

Bram van Kampen6-Jul-08 14:02

Bram van Kampen

6-Jul-08 14:02

Only if you are sure that your current working directory is: c:\folderA\folderB\

Bram van Kampen

Read Excel

mehrdadc486-Jul-08 9:08

mehrdadc48

6-Jul-08 9:08

Hi,
How can I read data from an excel file in C#?

Best wishes

Re: Read Excel

Christian Graus6-Jul-08 9:19

Christian Graus

6-Jul-08 9:19

There is a Microsoft Toolkit for Office, you can control Excel from C# with that.

Christian Graus

Please read this if you don't understand the answer I've given you. If you're still stuck, ask me for more information.

Re: Read Excel

DaveyM696-Jul-08 9:26

DaveyM69

6-Jul-08 9:26

Gembox[^] do a cool .net dll. Very simple to use and you don't need Excel installed. The free version has some rows/sheets limits but is otherwise fully functional.

Dave

Re: Read Excel

5do86-Jul-08 16:24

5do8

6-Jul-08 16:24

for excel 2003+,It is xml file in fact.and low versoin,i remeber CP had some article about it,you can search try.

Re: Read Excel

Christian Graus6-Jul-08 16:40

Christian Graus

6-Jul-08 16:40

No, the XML format started in 2008.

Christian Graus

Please read this if you don't understand the answer I've given you. If you're still stuck, ask me for more information.

Disable form when closing child form

Deresen6-Jul-08 7:05

Deresen

6-Jul-08 7:05

Hello everyone,

I have an question about forms in C#.
This is a problem which I have had since the start of programming in C#.

This is the problem:
In the (main) Form there is a button to open another (child) Form.
But when I use that Form I would like to have the main Form to be enabled. This is no problem. But when I close the child Form I would like to disable the main Form.
But I want the main form to do this.

So not something like this:

//Form main:
public void createForm(){
Child child = new Child(this);
child.show();
this.Enabled = true;
}
public void show(){
this.Enabled = false;
}
//Form child
public Child(Main m){
this.main = m;
}
public void Dispose(){
main.show();
}

I would rather like to have something like this:

//Form main
public void createForm(){
Child child = new Child();
child.show();
this.Enabled = true;
}
public void child_Disposed(object sender, EventArgs e){
this.Enabled = false;
}

If I'm not wrong, I'll have to work with delegates. But I don't know how, can somebody help me?

Re: Disable form when closing child form

Harvey Saayman6-Jul-08 7:28

Harvey Saayman

6-Jul-08 7:28

you might be able to catch the childs onFormClosing event on the parent and the disable the parent in the handler...

read my article on Delegates And Events[^]

Harvey Saayman - South Africa
Junior Developer
.Net, C#, SQL
you.suck = (you.passion != Programming)

Re: Disable form when closing child form

N a v a n e e t h6-Jul-08 7:29

N a v a n e e t h

6-Jul-08 7:29

Your second code looks OK, only thing is you haven't hooked the Disposed event.

//Form main
public void createForm(){
   Child child = new Child();
   child.Disposed += this.child_Disposed;
   child.show();
   this.Enabled = true;
}

private void child_Disposed(object sender, EventArgs e){
   this.Enabled = false;
}

All C# applications should call Application.Quit(); in the beginning to avoid any .NET problems.- Unclyclopedia

How to use google | Ask smart questions

problem with converting to Double

Rick van Woudenberg6-Jul-08 7:01

Rick van Woudenberg

6-Jul-08 7:01

Dear all,

I have a little problem converting a string that contains a ',' into a double.
Double needs a value devided by a dot ( or so I've read )

So , in my code , the following occurs :

string lat = p[u].X.ToString().Replace(',', '.');
MessageBox.Show(lat);

The output will be for example : 55.38978 ( which shows up perfect in the messagebox )

However, if i do the following :

MessageBox.Show(Convert.ToDouble(lat).ToString());

The output will be : 5538978
That doesn't make a whole lot of sense to me. So that dot is somehow bothering Double or am I not converting properly ?

Cheers Smile | :)

Re: problem with converting to Double

Deresen6-Jul-08 7:13

Deresen

6-Jul-08 7:13

Well the problem is that double works with a komma in stead of a dot.

See it like this:

string ss = "55,5493";
string lat = ss.ToString().Replace(',', '.');
double d = Convert.ToDouble(ss);
double dd = Convert.ToDouble(lat);
MessageBox.Show("" + d); //output: 55,5493
MessageBox.Show("" + dd); //oubput: 555493

So you should change this one:

string lat = ss.ToString().Replace(',', '.');

into this one:

string lat = ss.ToString().Replace('.', ',');

Good luck

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