Re: timers in windows service - C# Discussion Boards

timers in windows service

27-Oct-09 23:48

You can create a struct in C# and specify how much space each variable takes up. I forget the syntax, but I know you can.

Just found this with google:

using System.Runtime.InteropServices;
[StructLayout(LayoutKind.Explicit)]
struct ByteArray {
[FieldOffset(0)]
public byte Byte1;
[FieldOffset(1)]
public byte Byte2;
[FieldOffset(2)]
public byte Byte3;
[FieldOffset(3)]
public byte Byte4;
[FieldOffset(4)]
public byte Byte5;
[FieldOffset(5)]
public byte Byte6;
[FieldOffset(6)]
public byte Byte7;
[FieldOffset(7)]
public byte Byte8;
[FieldOffset(0)]
public int Int1;
[FieldOffset(4)]
public int Int2;
}

Christian Graus

Driven to the arms of OSX by Vista.

Read my blog to find out how I've worked around bugs in Microsoft tools and frameworks.

Chesnokov Yuriy27-Oct-09 23:26

Chesnokov Yuriy

27-Oct-09 23:26

I added to windows service design view a timer. I start it to say 2000ms in service custom command, and dump to log file that it was started indeed, by checking enabled property.

However, the timer event does not happen? (I dump to text file in the same way each timer tick)

I checked that in Designer.cs the timer was properly created and timer handler attached.

Is there a special timer processing in services?

Чесноков

Covean27-Oct-09 23:38

Covean

27-Oct-09 23:38

The problem can be that normally a service doesn't have a window and if I'm right the normal way a timer
catches the tick event over the main window proc.

At first you can try to let your service "interact with desktop".
Second I would try to use this class instead http://msdn.microsoft.com/de-de/library/system.threading.timer.aspx.

Greetings
Covean

Chesnokov Yuriy27-Oct-09 23:49

Chesnokov Yuriy

27-Oct-09 23:49

many thanks!
I will look into system.threading.timer class first

Чесноков

Sunil G 328-Oct-09 0:45

Sunil G 3

28-Oct-09 0:45

Hi,

Below code will Help you

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Diagnostics;
using System.ServiceProcess;
using System.Text;
using System.Timers;
using System.IO;

namespace service
{
public partial class Service1 : ServiceBase
{
Timer t = new Timer();
StreamWriter writer = new StreamWriter("C:\\Service.txt");
public Service1()
{
InitializeComponent();
}

protected override void OnStart(string[] args)
{
t.Elapsed += new ElapsedEventHandler(t_Elapsed);
t.Interval = 60000;
t.Enabled = true;
writer.WriteLine("Service is Started");
writer.WriteLine("Timer has been started..");
writer.Flush();
}

void t_Elapsed(object sender, ElapsedEventArgs e)
{
writer.WriteLine(DateTime.Now.ToString());
writer.Flush();
}

protected override void OnStop()
{
t.Enabled = false ;
writer.WriteLine("Service is Stopped");
writer.Flush();
}
}
}

Thanks,
Sunil G.

access outlook application

PIEBALDconsult28-Oct-09 11:39

PIEBALDconsult

28-Oct-09 11:39

Design view? For a Service? What? WTF | :WTF:

What kind of Timer? I use a System.Timers.Timer
Did you start the Timer?

nirmalsat27-Oct-09 23:18

nirmalsat

27-Oct-09 23:18

Hi,

I am trying to access outlook application in my c# code..I am able to read all mails when I debug..but when I try to access the same using a Windows service,I can't able to access..I get the following error..
"Retrieving the COM class factory for component with CLSID {0006F03A-0000-0000-C000-000000000046} failed due to the following error: 80080005."...Can anyone help me with this..

Re: access outlook application

Christian Graus27-Oct-09 23:20

how to make a row bold in Excel using C#

27-Oct-09 23:20

I'd guess it relates to permissions on the account the service runs under.

Christian Graus

Driven to the arms of OSX by Vista.

Read my blog to find out how I've worked around bugs in Microsoft tools and frameworks.

Bharti Vermani27-Oct-09 23:04

Bharti Vermani

27-Oct-09 23:04

Hello ,
I am adding a header to excel using string builder as below.

StreamWriter stream = null;
try
{
	string separator = "	";
	int serialNumber = 1;

	using (stream = new StreamWriter("c:/xyz.xls", false, Encoding.GetEncoding("Windows-1252")))
	{
		StringBuilder builder = new StringBuilder();
						
		builder.AppendLine();
		builder.Length = 0;
		builder.Append("SerialNo.");
		builder.Append(separator);
		builder.Append("TimeOfValidity");
						
		stream.WriteLine(builder.ToString());
        }
}

Is theer any way I can make this bold?

Thanks
BV

Re: how to make a row bold in Excel using C#

Christian Graus27-Oct-09 23:08

Re: how to make a row bold in Excel using C#

27-Oct-09 23:08

This actually works ? Really ? Wow.

To make it bold you'd need to interact with Excel properly, and not by just appending your text to the file verbatim.

Christian Graus

Driven to the arms of OSX by Vista.

Read my blog to find out how I've worked around bugs in Microsoft tools and frameworks.

Bharti Vermani27-Oct-09 23:20

Bharti Vermani

27-Oct-09 23:20

HI I wenet in through the article at :

http://www.dotnetspider.com/forum/ViewForum.aspx?ForumId=534[^]

and tried opening the excel application through

Excel.Application ExcelObj = new Excel.Application();
Excel.Workbook theWorkbook = ExcelObj.Workbooks.Open("C:/xyz.xls", 0, true, 5,"", "", true, Excel.XlPlatform.xlWindows, "\t", false, false,0, true);

I get the resharper error message showing "Cannot create an Instance ofthe interface "Excel.Application"
Also I can see issues for Open method and XLPlatform as it turns red

I have included in my reference COM object library named under COM tab - Microsoft Excel 12.0 Object Library.

Is there anything that I am doing wrong?

Regards
BV

Format string for fixed length real value in scientific representation?

Mats Eurén27-Oct-09 22:42

Mats Eurén

27-Oct-09 22:42

Hi!

I'm looking for a format string (to String.Format()) which is capable of handling the following criterias:

My input is a real value like -0.00123456 or 1233456.134 etc.

I want the output in scientific representation like "-1.234560E-003".

I want the output string to ALWAYS be 14 chars long no matter what.

How does the correct format string to accomplish this look like?

I've tried "{0:E7}" for positive values and "{0:E6}" for negative values. But this doesn't cover values greater than 9.9999999E+999 and values less than 1.0E-999.

Re: Format string for fixed length real value in scientific representation?

Christian Graus27-Oct-09 23:03

Re: Format string for fixed length real value in scientific representation?

27-Oct-09 23:03

I suspect that means you need a great level of accuracy than C# offers. Are you using the floats, Decimals or doubles ? You may need a scientific library of some sort.

Christian Graus

Driven to the arms of OSX by Vista.

Read my blog to find out how I've worked around bugs in Microsoft tools and frameworks.

Mats Eurén27-Oct-09 23:11

Mats Eurén

27-Oct-09 23:11

Well, the probability that I get values less than E-999 or greater than E+999 is more or less zero, but I thought that it would be cleaner if I could handle both positive and negative values with one format string.

I use doubles, but thats not carved in stone...

Deploying C# projects into single exe file

hosseinghazanfary27-Oct-09 22:09

hosseinghazanfary

27-Oct-09 22:09

hi dudes,
i have a c# solution(windows application),when i want to deploy my project,it gathers all the application resources and needed files into one exe file named setup.exe,but the problem is that i dont want to install my application on the destination computer,i just want to run it quickly without installation,and the .net framework is already installed on the destination computer .how can i make one single exe file executable on the destination system?i dont have any problem if i have to seprate it from needed files like my access database.
i will be thankful if any of u guys can help me.

Christian Graus27-Oct-09 22:20

27-Oct-09 22:20

if it's .NET, you should be able to put it on a memory stick and run it from there.

Christian Graus

Driven to the arms of OSX by Vista.

Read my blog to find out how I've worked around bugs in Microsoft tools and frameworks.

Calla27-Oct-09 22:28

Calla

27-Oct-09 22:28

This is simply xcopy deployment. Just copy the files from your \bin\Release directory to a folder on the other machine, and voilà!

vtchris-peterson28-Oct-09 5:39

vtchris-peterson

28-Oct-09 5:39

See http://research.microsoft.com/en-us/people/mbarnett/ilmerge.aspx[^].

Personally, I don't see much advantage to a single EXE as opposed to multiple assemblies, but this tool will allow you to merge them.

hosseinghazanfary30-Oct-09 7:34

hosseinghazanfary

30-Oct-09 7:34

tnx for the replies dudes,now i have another problem,i have the single exe appllcation,but i only runs where the OS has dotnet framework 2.0,i want my application to run in any computer that has windows xp or vista.without no need to install dotnet framework.i will be thankfull if u have any idea.

problem with move values between two running forms

vtchris-peterson30-Oct-09 8:03

vtchris-peterson

30-Oct-09 8:03

Not possible. Kind of the whole point of a framework...

Me fail English? That's unpossible!

Mr.Kode27-Oct-09 22:00

Mr.Kode

27-Oct-09 22:00

hello all

i have troubles with the following code

there are two forms
Form1 and Form2
Form1 is the owner of Form2

i need to move label1.text from Form2 to Form1 (note: both forms are running and visible)

here is my code
Form1 F1 = (Form1 )this.Owner;
F1.textbox1.text = label1.Text; // i had set textbox1 modifier property to public

thanks in advance

Re: problem with move values between two running forms

Christian Graus27-Oct-09 22:23