C# Discussion Boards - CodeProject

Re: An issue in windows service ?

Mohammad Dayyan4-Sep-09 6:32

Mohammad Dayyan

4-Sep-09 6:32

Thanks anyway

Re: An issue in windows service ?

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.

Re: An issue in windows service ?

Mohammad Dayyan3-Sep-09 1:24

Mohammad Dayyan

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.

Re: An issue in windows service ?

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);
}

Re: An issue in windows service ?

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!

How to dynamically add webservices in an application?

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

lalit14

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

Re: Simple Problem but tough for me

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.

Re: Simple Problem but tough for me

lalit142-Sep-09 22:17

lalit14

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;
}

Re: Simple Problem but tough for me

lalit142-Sep-09 22:19

lalit14

2-Sep-09 22:19

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

Re: Simple Problem but tough for me

stancrm2-Sep-09 22:25

stancrm

2-Sep-09 22:25

Have you ever used event handler ??

Do this first ...

comboBox1.SelectedIndexChanged += comboBox1_SelectedIndexChanged;

Re: Simple Problem but tough for me

lalit142-Sep-09 23:53

lalit14

2-Sep-09 23:53

Hey thanks ...........

I solved my problem.

Nice site, and nice members too.

Once again Thanks

Re: Simple Problem but tough for me

OriginalGriff2-Sep-09 22:26

OriginalGriff

2-Sep-09 22:26

Yes, but did you hook into the event? Or just write the handler?

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CultureInfo

Rajee Maharjan2-Sep-09 21:12

Rajee Maharjan

2-Sep-09 21:12

Hi,
Please help me who know these answer:

I need to Know the which cultureinfo is used in system.
For example: I need to know my system has which datetime format is used us or uk. To know the datetime format of US or UK. Can any idea in Localization or Globalization

Thanx in advance

Re: CultureInfo

OriginalGriff2-Sep-09 21:19

OriginalGriff

2-Sep-09 21:19

Clickity[^]

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Re: CultureInfo

stancrm2-Sep-09 21:33

stancrm

2-Sep-09 21:33

Application.CurrentCulture

Ask about <> with class name

Anmar-xe2-Sep-09 20:49

Anmar-xe

2-Sep-09 20:49

hi everyone...i have a basic knowledge of asp.net using vb.net and am working now on a project that use c# classes i get to code where i see someting like this Dictionary<string, PageConfig>...so whats that mean

please allow me to be a good programer

Re: Ask about <> with class name

Arun Jacob2-Sep-09 20:55

Arun Jacob

2-Sep-09 20:55

Anmar-xe wrote:
please allow me to be a good programer

MSDN is the best resource for learning this type of things,
http://msdn.microsoft.com/en-us/library/xfhwa508.aspx[^]
Smile | :)

Arun Jacob
http://codepronet.blogspot.com/

Re: Ask about <> with class name

Anmar-xe2-Sep-09 20:57

Anmar-xe

2-Sep-09 20:57

thank you

please allow me to be a good programer

Weird, unexplained occurance...

MarkB7772-Sep-09 20:48

MarkB777

2-Sep-09 20:48

I've been working on a CRS system, and was running into a nasty error...

For some reason every ~16 or so search queries, the program would crash, and give me a WIN32 exception, telling me that my program had used up all its allocated handles.

Ok, so I wasn't disposing of my objects correctly somewhere...

After much searching, I found that the foreach loop that was disposing of the results was not working as expected. (the search results were displayed using Panels).

If I called:

<br />
int i = window.FlowPanel.Controls.Count;<br />

It would return the expected number of (say) 20.

However when I ran:

<br />
foreach (Control c in window.FlowPanel.Controls)<br />
{<br />
    c.Dispose();<br />
}<br />

It would cut out of the foreach loop at the 10th object.

If I ran the same foreach loop directly afterwards, it would cut out at the 5th object etc etc.

I solved the problem by using this snippet:

<br />
while (window.FlowPanel.Controls.Count > 0)<br />
{<br />
foreach (Control c in window.FlowPanel.Controls)<br />
{<br />
    c.Dispose();<br />
}<br />
}<br />
<br />
GC.Collect();<br />

This solved the problem, but can anyone explain this behaviour?

Cheers,

Mark.

Mark Brock
"We're definitely not going to make a G or a PG version of this. It's not PillowfightCraft." -- Chris Metzen

Re: Weird, unexplained occurance...

OriginalGriff2-Sep-09 21:33

OriginalGriff

2-Sep-09 21:33

It's not that unexplained - Think of it this way: If you have a list and you iterate through it, what happens when you delete one of the list entries? What is the next entry for an entry which has been deleted? What happens when the Controls list is traversed by a different process?

Since foreach does effectively that - calls Controls.Next each time round the loop - it is very understandable that at some point you will have a problem. Normally, you would get a "Collection was modified; enumeration operation may not execute" exception, but I guess Dispose doesn't check that!

Use Controls.Remove to take the controls out of the list, then Dispose them. You will need to need to modify the foreach to a for loop (and I suggest iterating backwards from the last to the first, to make it safer.) You will probably find you can rely on the frame work to do the dispose this way.

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