Doing a simplistic 'extender provider' - C# Discussion Boards

Data Encoding (System.Text.Encoding)

6-Apr-02 18:07

True, Normally I wouldn't do such things in a benchmark; I feel benchmarks like this should only perform the work necessary to achieve the same end result, and not equivalent processing.

I massaged the code a little and ran it under DevPartner Profiler to obtain (for my actual scenario) more accurate results.

Thanks and Regards

BLaZiNiX5-Apr-02 18:37

5-Apr-02 18:37

What is the default encoding method of anything else instead of text files like :

EXE, Archive File (ZIP,RAR,ACE,...) and all others stuff, I tried Unicode Encoding but It;s not working.

I created a multiple file tools and everythings work fine but when I extract the files which are EXE and archives I don't have the correct encoding method because the files are corrupted or don't have the same size, but when I created the multiple files everything seems to be ok because i have one file with the same size as the sum of all the files in this file

anyone have the answer to this question ?

Thanks

Neil Van Note5-Apr-02 19:48

5-Apr-02 19:48

I am not sure what you are trying to achieve, but the types of files you are talking about wouldn't have a text encoding. They are straight 8 bit with no encoding.

BLaZiNiX5-Apr-02 20:17

5-Apr-02 20:17

Thanks for the tips Smile | :)

BTW what's mean UTF-7 UTF-8 ??

is it something like UNICODE TEXT FORMATTER ?

thanks again

Neil Van Note5-Apr-02 20:30

5-Apr-02 20:30

Yes. If you do a search in MSDN you will get an abundance of information.

Regards

BLaZiNiX5-Apr-02 21:30

5-Apr-02 21:30

I search MSDN and the error I got in my program what reliated to UTF-16 so UnicodeEncoding but it's not working anyway. I don't know why I got this error because If i test it on multiple files like TXT Files I don't have any trouble but when i'm talking about EXE and Archive i got error. That Strange !!

anyway if anybody have the answer or if you want me to send you my sample, just beep me

jonathan.pouliot@tecksys.com
ICQ : 71682311

Thanks

Neil Van Note5-Apr-02 21:39

Doing a simplistic 'extender provider'

5-Apr-02 21:39

Sure, send a sample, and I will get it to work.

The statement in your original post, "I created a multiple file tools" didn't give me a lot of insight on what you are trying to achieve, sorry.

Email: vannote@netaxs.com

Regards

Zombies with Coffee, LLC5-Apr-02 10:56

Re: Doing a simplistic 'extender provider'

5-Apr-02 10:56

I've really tried to make sense out of the extender provider samples, but not a one of them does the same way, and none of them are relatively trivial. What I am looking for is the ability to add one simple 'boolean' to every object on my form.

Sounds simple... So what am I doing wrong?

I added on a project to my main application and created a component of out this. I can get it to show up, but in no combination of aggravation can I make the boolean property appear on the controls.

Can anyone help me out!

Thanks!!

----------------------------------------------

using System;
using System.ComponentModel;
using System.Windows.Forms;

namespace StatusMessage
{
[ProvideProperty( "StatusMessage", typeof( Object ))]
public class StatusMessaging : Component, IExtenderProvider
{
private bool bUpdateStatusBar = false;

[DefaultValue(false)]
public bool GetStatusMessage( Control pControl )
{
return bUpdateStatusBar;
}

public void SetStatusMessage( Control pControl, bool value )
{
bUpdateStatusBar = value;
}

public bool CanExtend( object pControl )
{
if( pControl is Component ) return true;
else return false;
}
}
}

Zombies with Coffee, LLC5-Apr-02 11:07

Re: Doing a simplistic 'extender provider'

5-Apr-02 11:07

Let me update the code. After 300 iterations, it just didn't look right

namespace StatusMessage
{
/// <summary>
/// Summary description for UserControl1.
/// </summary>

[ProvideProperty( "StatusMessage", typeof( bool ))]
public class StatusMessaging : Component, IExtenderProvider
{
/// <summary>
/// Required designer variable.
/// </summary>

protected bool bUpdateStatusBar = false;

public bool GetStatusMessage( Control pControl )
{
return bUpdateStatusBar;
}

public void SetStatusMessage( Control pControl, bool value )
{
bUpdateStatusBar = value;
}

public bool CanExtend( object pControl )
{
if( pControl is Control )
return true;

return false;
}
}
}

David Wengier5-Apr-02 12:48

David Wengier

5-Apr-02 12:48

psdavis wrote:
[ProvideProperty( "StatusMessage", typeof( bool ))]

Try making it typeof(Control). You need to tell the UI what type of objects you want the property to appear for. It works out the type your property will provide from the GetStatusMessage and its return type.

I can send you an example I have that I wrote which provides a simple extender to a control. I was going to write it up as an article, but I dont haev time.

--
David Wengier

Sonork ID: 100.14177 - Ch00k

TCP/IP in C#

Nick Parker5-Apr-02 7:00

Nick Parker

5-Apr-02 7:00

Suppose someone were writing a "firewall" application that was "watching" or listening for activity over an incoming IP address, what is the best way to cover all ports. In all the examples I have read, someone creates an instance of TcpListener and supplies a port to listen to. Surely you don't have to do that for each of the 65,000+ ports. Could someone lead me in the right direction. Thanks. Confused | :confused:

Nick Parker

Re: TCP/IP in C#

James T. Johnson5-Apr-02 14:41

ListView...ItemCheck event...make some items hidden..but how??

5-Apr-02 14:41

There is probably some winsock/system hook buried somewhere deep in the win32 API, that tells you when there is an inbound connection request.

I looked at SetWindowsHookEx but it didn't seem to offer it, and I didn't see anything in the WinSock API. Perhaps someone more knowledgeable than me can fill you in, in the VC++ forum.

Once you find it, you can use P/Invoke to access it. Or at the most you would have to write a MC++ layer to act as the middleman for your C# code and the system.

Good Luck,

James

Sonork: Hasaki
"I left there in the morning
with their God tucked underneath my arm
their half-assed smiles and the book of rules.
So I asked this God a question
and by way of firm reply,
He said - I'm not the kind you have to wind up on Sundays."
"Wind Up" from Aqualung, Jethro Tull 1971

Re: TCP/IP in C#

Nick Parker8-Apr-02 2:56

Nick Parker

8-Apr-02 2:56

James T. Johnson wrote:
There is probably some winsock/system hook buried somewhere deep in the win32 API

So you think a system hook is the way to go?? Confused | :confused:

This might be a great article idea, when I find more time/information I will post something, I tried the VC++ forum but only got one response that was unfortunately no help. I'll keep searching Smile | :)

Nick Parker

gicio5-Apr-02 0:24

gicio

5-Apr-02 0:24

Hi!

what I want to make....

when an user checked one item in the ListView the other items must come
hidden.
or:
when an user checked one item in the ListView the other items must come
hidden and after the user cheched the second time
at this item all items was visible....
(I will make it to allowed the user to checked only 1 item)

have anyone an idea how I can make this?

(at best would help me a code sample in C#)

big THX!!

Self Extractor

BLaZiNiX4-Apr-02 17:36

4-Apr-02 17:36

How Can I make my own self extractor without using any zipping lib, I just want to add multiple file to an exe and when I double click on this exe : show a dialog with a browse to folder where the user want to extract files ???

Thanks

James T. Johnson4-Apr-02 23:54

4-Apr-02 23:54

You could add each file as a resource to an executable, then use the Assembly.GetManifestStreamNames/Assembly.GetManifestStream methods to loop through all the files added as resources parsing the name to determine if a folder should be created (or adding a special file which contains that data).

James

Sonork: Hasaki
"I left there in the morning
with their God tucked underneath my arm
their half-assed smiles and the book of rules.
So I asked this God a question
and by way of firm reply,
He said - I'm not the kind you have to wind up on Sundays."
"Wind Up" from Aqualung, Jethro Tull 1971

BLaZiNiX5-Apr-02 8:30

5-Apr-02 8:30

do you have sample code or articles on the subject because I don't know how play with Manifest( I don't know what is it) and I don't know how play with asssembly

??

thanks a lot

James T. Johnson5-Apr-02 14:42

5-Apr-02 14:42

I'll get right on it Smile | :)

Actually I'll 'get right on' finding my code and tweaking it Smile | :)

James

Sonork: Hasaki
"I left there in the morning
with their God tucked underneath my arm
their half-assed smiles and the book of rules.
So I asked this God a question
and by way of firm reply,
He said - I'm not the kind you have to wind up on Sundays."
"Wind Up" from Aqualung, Jethro Tull 1971

James T. Johnson5-Apr-02 15:23

5-Apr-02 15:23

I've uploaded a sample program that (by default) has two files embedded in it; it uses the FolderBrowser component from CP, and it just happens that that component is what I embedded in the exe.

AssemblyManifest.zip I've included the VS.NET project and a batch file to build it from the command line if you don't have VS.NET

Good Luck,

James

Sonork: Hasaki
"I left there in the morning
with their God tucked underneath my arm
their half-assed smiles and the book of rules.
So I asked this God a question
and by way of firm reply,
He said - I'm not the kind you have to wind up on Sundays."
"Wind Up" from Aqualung, Jethro Tull 1971

BLaZiNiX5-Apr-02 17:23

5-Apr-02 17:23

Thanks a lot, you're my god

btw do you have ICQ if yes here's my pin :71682311

thanks again

James T. Johnson5-Apr-02 23:16

How does the menu update the status bar?

5-Apr-02 23:16

I have ICQ but its closed most of the time, I only talk to 2 people on it anymore and one of them is in an IRC channel with me and the other doesn't get on much :-P

I'm trying to switch over to sonork full time Smile | :)

Zombies with Coffee, LLC4-Apr-02 10:22

Re: How does the menu update the status bar?

4-Apr-02 10:22

Use your mouse to go over any menu item on any program. The status bar updates automatically with a description that you've added.

How do you do it with C#?

Thanks!!

David Wengier4-Apr-02 11:02

David Wengier

4-Apr-02 11:02

Handle the Select event of the MenuItem and just set the status bar text (or anything else) as you wish.

--
David Wengier

Sonork ID: 100.14177 - Ch00k

Re: How does the menu update the status bar?

Zombies with Coffee, LLC4-Apr-02 11:17