C# Discussion Boards - CodeProject

Steve Harp5-Apr-12 9:55

5-Apr-12 9:55

As I said, this is a suite of applications that work together. That's why the log is shared. It allows end users to provide information to technical support about when and where whatever happened.

I'd like any user to be able to open it for read/write.

Re: Log File Permissions

jschell7-Apr-12 6:10

jschell

7-Apr-12 6:10

Steve Harp wrote:
As I said, this is a suite of applications that work together. That's why the log is shared. It allows end users to provide information to technical support about when and where whatever happened.

Then I can only repeat what I said - it isn't a good idea to share the same file.
I base that on 20 years of using logs.

Re: Log File Permissions

Big Daddy Farang5-Apr-12 10:26

Big Daddy Farang

5-Apr-12 10:26

Hi Steve,

I'm afraid I'm missing something here. Yes, when an application creates a text file it can control the permissions of the file, just as the administrative-privelege application does. That application would need to create the log file with different priveleges allowing "world" read/write access.

If that's not possible, an administrative user could change the permissions of the file after it is created, but that an operational issue rather than a programming issue.

BDF

I often make very large prints from unexposed film, and every one of them turns out to be a picture of myself as I once dreamed I would be.
-- BillWoodruff

Re: Log File Permissions

RobCroll5-Apr-12 11:33

RobCroll

5-Apr-12 11:33

I think you may be wanting to use the FileSystemAccessRule Class[^]

"You get that on the big jobs."

Re: Log File Permissions

Steve Harp6-Apr-12 6:10

Steve Harp

6-Apr-12 6:10

Excellent! That put me on the path.

Thanks very much....

User control not updating when running project

TheFoZ5-Apr-12 4:23

TheFoZ

5-Apr-12 4:23

Hi All

This has been drving me insane. I have a user control that I am adding and removing controls from and want to see what it looks like on the main form. When I goto the main form the updates are not there. The same thing happens when I run the solution. Taking the control off and putting it on again doesn't work. Shutting down visual studio 2008 and re-opening it causes me to loose all of my changes. I found this article here[^] but it didn't fix my problem. I even deleted all copies of the dll I could find, checked the auto populate setting and when I went to the Choose Items... dialog, there was a reference to the dll in there as before.

The form and user control are in the same DLL within the solution. Is there any way around it? Should I structure my project differently?

Thanks for your help in advance

The FoZ

Re: User control not updating when running project

Eddy Vluggen5-Apr-12 6:31

Eddy Vluggen

5-Apr-12 6:31

A bit harsh, but this should do the trick;

Right-click on the toolbox, and choose "Reset Toolbox".
Right-click on the toolbox, and choose "Choose Items.."
Select "browse" to navigate to the assembly containing the UserControl.

Bastard Programmer from Hell Suspicious | :suss:

Re: User control not updating when running project

RobCroll5-Apr-12 11:50

RobCroll

5-Apr-12 11:50

Closing Visual Studio and losing your changes without a prompt is really strange. I think Visual Studio is corrupt.

Does it update if you close the user control and main window, then build and reopen the main window?

If so go with that.

"You get that on the big jobs."

Re: User control not updating when running project

TheFoZ9-Apr-12 21:34

TheFoZ

9-Apr-12 21:34

That seems to be working thanks. Although I'm not sure if the Easter Break has done my PC some good.

I'll make sure everything is update to. Hopefully my 2010 installation is causing any troubles.

Cheers

The FoZ

User Shared File Access

PapaGeek5-Apr-12 4:10

PapaGeek

5-Apr-12 4:10

I’m using Visual Studio 2010 on Windows 7

I’m trying to write a log file in one program while reading the same log file in a second program.

The first program receives data from a server every minute from second 0 through second 5.

I want the second program to sleep till 30 seconds after each minute, read the traces from the first program’s log file, and display any warnings.

I found a post on the web saying I should open the file in program 1 as:

_logStream = new FileStream(logFileName, FileMode.Create, FileAccess.ReadWrite, FileShare.Read);
_logFile = new StreamWriter(_logStream);

Then open the file in program 2 as:

var _logStream = new FileStream(filename1, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
var xyz = new StreamReader(_logStream);

But I get the error message:

Unhandled Exception: System.IO.IOException: The process cannot access the file '
C:\SandBox\120405133716.log' because it is being used by another process.

Can this be done in Window's 7 ??
If so, what is the proper code ??

Re: User Shared File Access

Eddy Vluggen5-Apr-12 6:05

Eddy Vluggen

5-Apr-12 6:05

I don't like textfiles as a buffer. I'd switch to a database, and do insert's and selects - that would also solve the problem of simultaneous access.

Bastard Programmer from Hell Suspicious | :suss:

visiual programing

Arikod Augustine5-Apr-12 3:36

Arikod Augustine

5-Apr-12 3:36

codes for the note pad

Re: visiual programing

Dave Kreskowiak5-Apr-12 3:53

Dave Kreskowiak

5-Apr-12 3:53

No. The only code you're going to get is the code you write.

We're not in the business of handing projects out to everyone who demands them. We're in the business of helping you with your own code.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak

Re: visiual programing

Richard Andrew x645-Apr-12 7:52

Richard Andrew x64

5-Apr-12 7:52

Dave Kreskowiak wrote:
No. The only code you're going to get is the code you write.

Perhaps Chris should rename the site, The Codes Project. Big Grin | :-D

The difficult we do right away...
...the impossible takes slightly longer.

Re: visiual programing

OriginalGriff5-Apr-12 19:54

OriginalGriff

5-Apr-12 19:54

or perhaps the CODEZZZ URGNNTZZZ!!!! PROJECT

Ideological Purity is no substitute for being able to stick your thumb down a pipe to stop the water

Re: visiual programing

ZurdoDev5-Apr-12 5:35

ZurdoDev

5-Apr-12 5:35

Quote:
codes for the note pad

Is that supposed to mean something?

There are only 10 types of people in the world, those who understand binary and those who don't.

Re: visiual programing

V.5-Apr-12 20:43

5-Apr-12 20:43

1. Press the windows key + R.
2. In the dialog that appeared, type in the code "notepad" (without quotes)

Notepad launches.

Re: visiual programing

Alan Balkany10-Apr-12 4:40

Alan Balkany

10-Apr-12 4:40

Notepad is basically a TextBox. Create a form, add a TextBox and menu items to load/save text, and you essentially have NotePad.

"Microsoft -- Adding unnecessary complexity to your work since 1987!"

close winforms childs and main

Ronenb5-Apr-12 2:45

Ronenb

5-Apr-12 2:45

Hi I have application that is define as MDI,
there are several form child
once the user press X button, i wish the application to be close and all other windows.
at the FromClosing event i add the following code
//handle and close the logic layer...
foreach (Form frm in this.MdiChildren)
{
frm.Close();
frm.Dispose();
}
Application.Exit();
All childs are closed but the the event FromClosing
happen agian, why?
i would expect the event of the main form FromClosing will happen only one time.
this cause my problems at the logic layer

ronen

Re: close winforms childs and main

Eddy Vluggen5-Apr-12 2:53

Eddy Vluggen

5-Apr-12 2:53

Ronenb wrote:
All childs are closed but the the event FromClosing

happen agian, why?

Because you called "Application.Exit", which will close all the forms and exit the application. You needn't close all forms manually, exiting the application should be enough and should close all remaining forms (and dispose them) automagically.

Bastard Programmer from Hell Suspicious | :suss:

Re: close winforms childs and main

Ronenb5-Apr-12 4:54

Ronenb

5-Apr-12 4:54

in case i will remove closing the child manully, once i click close "X", each time child window will be closed
i need to press X button accurding the number of child windows that are opend
what am i'm missing?

what is the correct process to close MDI application?

thanks
ronen

Re: close winforms childs and main

Eddy Vluggen5-Apr-12 6:01

Eddy Vluggen

5-Apr-12 6:01

There are TWO X-es on a MDI-form if you have the children maximized. If you want to close the application, you close the mainform. That's how things work in Windows, and across all other MDI-applications. If you close one of the child-windows by using it's X, then you are merely closing that particular document of the "Multiple Document Interface".

Likewise, Ctrl-F4 would close a child-document, Alt-F4 would close the application.

Ronenb wrote:
what is the correct process to close MDI application?

Application.Exit from code, the X topright of the mainform or Alt-F4 from user-input.

Bastard Programmer from Hell Suspicious | :suss:

Re: close winforms childs and main

Ronenb5-Apr-12 7:44

Ronenb

5-Apr-12 7:44

i'm trying to closing the app by the mainform X Smile | :)

, not the child form X
the status is when i press the mainform X, a child win is closed, each click close child form till all childs are closed, last click on X close the app once no child exist

any advice?

Re: close winforms childs and main

Eddy Vluggen5-Apr-12 8:16

Eddy Vluggen

5-Apr-12 8:16

Ronenb wrote:
any advice?

Yes. Post the code from the children's OnCloseForm handler.

Start a new project, add this code;

namespace WindowsFormsApplication15
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
            this.IsMdiContainer = true;

            new Form() { MdiParent = this, Visible = true };
            new Form() { MdiParent = this, Visible = true };
        }
    }
}

That'll display two documents within a MDI-parent. App will close on X, unless you have some custom code somewhere.

Bastard Programmer from Hell Suspicious | :suss:

Re: close winforms childs and main

Big Daddy Farang5-Apr-12 9:15

Big Daddy Farang

5-Apr-12 9:15

Do any of the child forms have FormClosing(..) handlers? If so check them to see if they might be doing anything that's interfering, such as setting e.Cancel to true.

You might also try stepping through the main form's closing handler with the debugger if you haven't done that already.

BDF

I often make very large prints from unexposed film, and every one of them turns out to be a picture of myself as I once dreamed I would be.
-- BillWoodruff

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.