Re: An issue in windows service ? [modified] - C# Discussion Boards

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2-Sep-09 22:22

An issue in windows service ?

Mohammad Dayyan2-Sep-09 21:59

2-Sep-09 21:59

Hi.

I've created a windows service and installed it. ( I saw it in Computer Management -> Services )
Then I've started it with following code :

static void StartService(string serviceName, int timeoutMilliseconds)
{
    ServiceController service = new ServiceController(serviceName);
    try
    {
        TimeSpan timeout = TimeSpan.FromMilliseconds(timeoutMilliseconds);

        service.Start();
        service.WaitForStatus(ServiceControllerStatus.Running, timeout);
    }
    catch (Exception ex)
    {
        Console.WriteLine(ex.Message);
    }
}

There are two methods in my windows service :

protected override void OnStart()
{
    // Create a text file C:\temp\mcb.txt 
    FileStream fs = new FileStream(Environment.GetFolderPath(Environment.SpecialFolder.Desktop) + @"\mds.txt", FileMode.OpenOrCreate, FileAccess.Write);
    StreamWriter m_streamWriter = new StreamWriter(fs);
    m_streamWriter.BaseStream.Seek(0, SeekOrigin.End);
    m_streamWriter.WriteLine(" mcWindowsService: Service Started \n");
    m_streamWriter.Flush();
}

protected override void OnStop()
{
    // Create a text file C:\temp\mcb.txt 
    FileStream fs = new FileStream(Environment.GetFolderPath(Environment.SpecialFolder.Desktop) + @"\mds.txt", FileMode.OpenOrCreate, FileAccess.Write);
    StreamWriter m_streamWriter = new StreamWriter(fs);
    m_streamWriter.BaseStream.Seek(0, SeekOrigin.End);
    m_streamWriter.WriteLine(" mcWindowsService: Service Stopped \n");
    m_streamWriter.Flush();
}

But nothing is done !!!
I mean when I start it OnStart() doesn't execute.
What's wrong with it ?
Could you please guide me ?

Thanks.

Re: An issue in windows service ? [modified]

N a v a n e e t h3-Sep-09 0:23

N a v a n e e t h

3-Sep-09 0:23

Is this service installed? Are you able to start it from service control manager? Are you getting any error?

Navaneeth

How to use google | Ask smart questions

Mohammad Dayyan3-Sep-09 1:22

3-Sep-09 1:22

N a v a n e e t h wrote:
Is this service installed?

Yeah, It was installed currently, I can see it in Computer Management -> Services but I can't start it from there. I don't know why and I don't getting any errors !
BTW : I've set StartType property to Automatic .

modified on Thursday, September 3, 2009 7:30 AM

Re: An issue in windows service ? [modified]

N a v a n e e t h3-Sep-09 5:43

N a v a n e e t h

3-Sep-09 5:43

Try to wrap the file writing code in try/catch and write the exception in to event log. Also try with a hardcoded path something like C:\mcb.txt. I guess problem will be with the line Environment.GetFolderPath(Environment.SpecialFolder.Desktop). You may need to turn Allow service to interact with Desktop option. Right click on your service and choose Properties -> Logon Tab -> Allow service to interact with desktop.

Your file writing code can also be improved. Here is an improved version.

string path = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Desktop), "\mds.txt")
using(StreamWriter writer = File.CreateText(path))
{
    writer.WriteLine("mcWindowsService: Service Started \n");
}

Navaneeth

How to use google | Ask smart questions

Mohammad Dayyan4-Sep-09 0:49

4-Sep-09 0:49

Great, It works.
Thanks a lot N a v a n e e t h

I've test with C drive.

N a v a n e e t h wrote:
You may need to turn Allow service to interact with Desktop option. Right click on your service and choose Properties -> Logon Tab -> Allow service to interact with desktop.

~~Where is Logon Tab ?~~
I've found it. Can we do it programmatic ?

modified on Friday, September 4, 2009 6:56 AM

N a v a n e e t h4-Sep-09 5:57

N a v a n e e t h

4-Sep-09 5:57

Mohammad Dayyan wrote:
I've found it. Can we do it programmatic ?

Not sure.

Navaneeth

How to use google | Ask smart questions

Mohammad Dayyan4-Sep-09 6:32

4-Sep-09 6:32

Thanks anyway

Calla3-Sep-09 0:23

Calla

3-Sep-09 0:23

How do you know OnStart() doesn't execute? Is it because nothing is written to the file? I think you need to close your StreamWriter too, not only flush it.

Mohammad Dayyan3-Sep-09 1:24

3-Sep-09 1:24

Calla wrote:
How do you know OnStart() doesn't execute?

If it executes , the file have to exist in Desktop , but the file doesn't create.

Calla3-Sep-09 2:47

Calla

3-Sep-09 2:47

You need to find out whether the service is installed correctly or if you just have trouble creating and writing to the file.

Try writing something to the Application Log in the OnStart method of the service to verify the code is being run.

protected override void OnStart()
{
   System.Diagnostics.EventLog.WriteEntry("In OnStart.", EventLogEntryType.Information);
}

How to dynamically add webservices in an application?

Hristo-Bojilov3-Sep-09 0:30

Hristo-Bojilov

3-Sep-09 0:30

Seems as the service is not installed correctly.Use InstallUtil,ServiceInstaller and ServiceProcessInstaller to figure it out.To debug the service you should open the project first and next use Attach to Process from tools menu to attach the service. Smile | :)

Life is a stage and we are all actors!

Thomas ST2-Sep-09 21:50

Thomas ST

2-Sep-09 21:50

This is what I want to do:

- I have made a WSDL (interface) which can be implemented by different web-services. Lets call this provideData.wsdl
- I want to make a c# console application where I can dynamically add different services (different locations) which implements the same WSDL. Something like this:

static void Main(string[] args)<br />
{<br />
   AddDataProvider("http://serviceA/a.asmx");<br />
   AddDataProvider("https://serviceB/b.asmx");<br />
   //Do something with the data, using a shared interface..<br />
}

Normally when I consume a web-service in a C# project I just press "Add Service Reference...",
but how can I do this dynamically with code? Sniff | :^)

Read Memory variable file

sadaf822-Sep-09 21:36

sadaf82

2-Sep-09 21:36

hello
how read memory variable file 0r files *.mem in c#.net?

Re: Read Memory variable file

stancrm2-Sep-09 21:50

stancrm

2-Sep-09 21:50

If you just want to read the .mem file, it's easy :

byte[] array = File.ReadAllBytes(@"c:\test.mem");

Re: Read Memory variable file

sadaf824-Sep-09 22:02

sadaf82

4-Sep-09 22:02

tankhs, but not answer

Re: Read Memory variable file

sadaf827-Sep-09 18:11

sadaf82

7-Sep-09 18:11

nobady answear quistion?

Simple Problem but tough for me

lalit142-Sep-09 21:17

2-Sep-09 21:17

Hello...

I m creating ASP Website in C#.

There is one drop down list and one text box

In drop down list, i have country's name.

Problem:

i just want is that textbox will display the selected item in drop down list.
Suppose if i select INDIA in Drop down list then textbox must display INDIA..

Please Help me out.

Thanks in Advance.

Lalit

stancrm2-Sep-09 21:31

stancrm

2-Sep-09 21:31

In C# WinForm use the event SelectedIndexChanged from ComboBox :

private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
{
  textBox1.Text = comboBox1.Text;
}

But in ASP, ask in ASP.NET forum.

lalit142-Sep-09 22:17

2-Sep-09 22:17

I wrote this below code but nothing is working.

protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
{
TextBox1.Text = DropDownList1.Text;
}

lalit142-Sep-09 22:19

2-Sep-09 22:19

above code i hav written in default.aspx.cs file

stancrm2-Sep-09 22:25

stancrm

2-Sep-09 22:25

Have you ever used event handler ??

Do this first ...

comboBox1.SelectedIndexChanged += comboBox1_SelectedIndexChanged;

lalit142-Sep-09 23:53