Re: How to check if a number can be dived by 8 [modified] - C# Discussion Boards

Ed.Poore25-Jul-08 22:49

25-Jul-08 22:49

Can you explain in a bit more detail what you are trying to do. Putting data into a StatusStrip object is no different from other controls, the difference is that you can't do it easily through the designer (which is what I suspect you're trying to do) but you can through code.

form layout: rate this practice

nelsonpaixao25-Jul-08 14:18

nelsonpaixao

25-Jul-08 14:18

hi,

I have a application with 1 form (main_form) and 6 usercontrols(login_page, menu_page, item1_page, item2_page, item3_page, item4_page).

The form has inside all usercontrols!!!

When i want to enter menu_page i edit visible = true, and visible = false to other usercontrols
i use delegates to trigger events within any usercontrol or form

it works

someone does it other way? WTF | :WTF:

Re: form layout: rate this practice

PIEBALDconsult25-Jul-08 19:44

PIEBALDconsult

25-Jul-08 19:44

Sounds kinda like a home-grown tab control.

At least you're using usercontrols.

You'd have to describe more about how the user navigates.

Depending on what you're doing, I would probably pop up (modal) dialogs.

Typically, when the form loads, I would pop up the login_page.
Once logged in, the user sees the menu_page.
When the user selects a menu item, I pop up the appropriate item_page.

But, like cats, there are many ways to skin it.

decoding gzip http response

udikantz25-Jul-08 11:50

udikantz

25-Jul-08 11:50

hey im trying to make a program that uses some http features and analyze the response data ,
i have encounter a problem when i get responses which are encoded in this method:
Transfer-Encoding: chunked
Content-Encoding: gzip
does anyone have an idea how can i decode the returned data ?
so it will be readable.
thank you.

Net

modified on Friday, July 25, 2008 5:59 PM

Windows Services - Log On As User Account

dataminers25-Jul-08 11:29

dataminers

25-Jul-08 11:29

I write a windows service. It's log on as Local System account. I want to log on as user account for this service. For example administrator account or any other user account on windows. Ok, I can change Local System account to user account using with this steps;

My Computer --> Manage --> Services and Applications --> Services --> "MyService"

Click "LogOn" tab
Select "This account"
This account: type your account (For example .\Administrator)
Password: type your password

How can I write this operation code in C# ?

Best Regards...

Re: Windows Services - Log On As User Account

Mark Salsbery25-Jul-08 13:59

Mark Salsbery

25-Jul-08 13:59

You can specify an account using a ServiceProcessInstaller[^].

Mark

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

How to check if a number can be dived by 8

Gareth H25-Jul-08 11:00

Gareth H

25-Jul-08 11:00

I have a loop (below) that has 64 iterations. Every 8 iterations i want to change an int. At the moment, i do the below, but its not a "nice" way to do to.

for (int i = 0; i < 64; i++)
{
    //doStuff

    if (i == 7 || i == 15 || i == 23 || i == 31 || i == 39 || i == 47 || i == 55)
    {
        //change int
    }                
}

So, does anyone know how I'd do a calculation to have the same effect as the above?

Regards,
Gareth.

(FKA gareth111)

Re: How to check if a number can be dived by 8 [modified]

Wendelius25-Jul-08 11:06

Wendelius

25-Jul-08 11:06

Hi,

Use modulus operator (%) and check that the remainder is 0

For example: 7%7 and 14%7 returns 0 while 8%7 and 15%7 returns 1 and so on.

for (int i = 0; i < 64; i++) {
   //doStuff
   if (i % 7 == 0) {
      //change int
   }
}

[addition]
Of course if you don't actually need the values between you can modify your loop incrementation:

for (int i = -1; i < 64; i=i+8){
   //doStuff
   if (i == 7 || i == 15 || i == 23 || i == 31 || i == 39 || i == 47 || i == 55)    {
      //change int
   }
}

[addition ends]

Hope this helps,

Mika

modified on Friday, July 25, 2008 5:33 PM

Re: How to check if a number can be dived by 8

Gareth H25-Jul-08 11:46

Gareth H

25-Jul-08 11:46

Cheers.

Regards,
Gareth.

(FKA gareth111)

Re: How to check if a number can be dived by 8

Luc Pattyn25-Jul-08 12:02

Luc Pattyn

25-Jul-08 12:02

Hi Gareth,

for powers of 2, don't use modulo, use bitwise AND instead. As in
if ((counter & 7)==0) doEveryEightTime();

Smile | :)

Luc Pattyn [Forum Guidelines] [My Articles]

Voting for dummies? No thanks. Dead | X|

Re: How to check if a number can be dived by 8

Lutosław25-Jul-08 11:30

Lutosław

25-Jul-08 11:30

Gareth H wrote:

for (int i = 0; i < 64; i++)
{
    //doStuff

    if (i == 7 || i == 15 || i == 23 || i == 31 || i == 39 || i == 47 || i == 55)
    {
        //change int
    }                
}

So, does anyone know how I'd do a calculation to have the same effect as the above?

int counter = 0;
for (int i = 0; i < 64; i++, counter++)
{
    //doStuff

    if (counter == 7)
    {
        counter = -1;
        //change int
    }                
}

-OR- (additional maths needed but without an extra variable)

for (int i = 0; i < 64; i++)
{
    //doStuff

    if (i % 8 == 7)
    {
        //change int
    }                
}

Hope it helps Smile | :)

Greetings - Gajatko

Portable.NET is part of DotGNU, a project to build a complete Free Software replacement for .NET - a system that truly belongs to the developers.

Re: How to check if a number can be dived by 8

#realJSOP26-Jul-08 0:52

#realJSOP

26-Jul-08 0:52

Just use the modulus operator (%), like so...

private bool IsDivisibleBy(int divisor, int value)
{
    return (value % divisor == 0);
}

// usage 

if (IsDivisibleBy(8, 32))
{
    // do some stuff.
}

"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997
-----
"...the staggering layers of obscenity in your statement make it a work of art on so many levels." - Jason Jystad, 10/26/2001

NetAsm, A JIT Native Code Injection Library

AlexandreMutel25-Jul-08 10:58

AlexandreMutel

25-Jul-08 10:58

Hi,

I would like to share with the .NET community, the NetAsm opensource project available on codeplex.

NetAsm provides a hook to the .NET JIT compiler and enables to inject your own native code in replacement of the default CLR JIT compilation. With this library, it is possible, at runtime, to inject x86 assembler code in CLR methods with the speed of a pure CLR method call and without the cost of Interop/PInvoke calls. With this library, it is possible for example to inject highly optimized code (using SSE, MMX) inside a method, in replacement of the default generated native code by the JIT compiler.

The current features of NetAsm are:

Runs on x86 32bit Microsoft .NET platform with 2.0+ CLR runtime (x64 may be supported in the future
Provides three different native code injection techniques: Static, DLL, and Dynamic.
- Static code injection: The native code is stored in an attribute of the method.
- Dll code injection : this method is similar to the DllImport mechanism but CLR methods are directly bind to the DLL function, without going through the interop layers.
- Dynamic code injection: you can generate native code dynamically with a callback interface that is called by the JIT when compilation of a method is occurring. It means that you can compile a method “on the fly”. You have also access to the IL code of the method being compiled.
Supports for debugging static and dynamic code injection.
Supports for different calling conventions: StdCall, FastCall, ThisCall, Cdecl. Default calling convention is CLRCall
NetAsm can be used inside any .NET language (you can run assembler code inside VB!)
Very small library <100Ko.

For additional information and documentation, please visit the NetAsm codeplex site.

Alexandre

Re: NetAsm, A JIT Native Code Injection Library

DaveyM6925-Jul-08 11:23

DaveyM69

25-Jul-08 11:23

I'm not sure where you should post this - maybe an article giving a demonstration of your project in use so people can see its benifits in action? - but certainly not here in this forum!

Dave
BTW, in software, hope and pray is not a viable strategy. (Luc Pattyn)

Re: NetAsm, A JIT Native Code Injection Library

Roger Alsing25-Jul-08 23:50

Roger Alsing

25-Jul-08 23:50

>>but certainly not here in this forum!

Why not?

it's not a commercial product, it is related to the topic of the forum and it could be useful for the readers in here.
I don't see why it shouldnt be here..

My Blog

HL7 integration with C#

Aslesh25-Jul-08 8:32

Aslesh

25-Jul-08 8:32

Hi,

I have to create a parser that can parse a HL7 Message and load the data result into aSQL Server.

Does any one have any idea about this ?

Re: HL7 integration with C#

DaveyM6925-Jul-08 9:12

DaveyM69

25-Jul-08 9:12

I know nothing about this personally but a quick search found this blog[^] - the author seems to be pretty knowledgeable and there's alot of info on his site.

Dave
BTW, in software, hope and pray is not a viable strategy. (Luc Pattyn)

Re: HL7 integration with C#

Bob Nadler25-Jul-08 12:25

Bob Nadler

25-Jul-08 12:25

There are some packages on SourceForge (see[^]) that might help. Depending on your application you could also use Mirth[^] to independently parse and route messages directly into the SQL DB. Then your C# code wouldn't have to deal with HL7 at all.

Bob on Medical Device Software [^]

Re: HL7 integration with C#

#realJSOP26-Jul-08 0:47

#realJSOP

26-Jul-08 0:47

Are you even familiar with the nature of HL7 messages? They're the most convoluted message protocols I've ever seen - the first block of characters are the delimiters you should expect, and after that - a series of nested delimited strings of data. The book that explains all the fields (that don't always have to be there) is a couple THOUSAND pages long. You'll be better off buying code that's already been written, and be prepared to spend some big bucks, because HL7 is NOT for the faint at heart.

HL7 integration with C#

Bob Nadler30-Jul-08 17:44

Bob Nadler

30-Jul-08 17:44

The problem with HL7 isn't the protocol itself. The most prevalent version is v2.X which is ASCII delimited because it dates back to when most medical devices communicated via RS-232. The most recent version (v3.0) is XML-based, but its adoption rate has been very slow so you’re unlikely to find facilities that actually use it yet.

The most difficult aspect of HL7 is that everyone has their own interface implementation. No two systems are alike. ASCII delimiters are easy compared with having to constantly renegotiate the protocol with another party even though it’s for the same purpose as the last interface you did.

Bob on Medical Device Software [^]

CharArrayReader

DwR25-Jul-08 8:25

DwR

25-Jul-08 8:25

Hi,
Could anyone tell me whether there is a C# equivalent of the java CharArrayBuilder class?

Regards,
Dave

Regards,
Dave

Re: CharArrayReader

SomeGuyThatIsMe25-Jul-08 8:26

SomeGuyThatIsMe

25-Jul-08 8:26

i would imagine that StringBuilder would be close, but i'm not all that familiar with java.

Please remember to rate helpful or unhelpful answers, it lets us and people reading the forums know if our answers are any good.

Re: CharArrayReader

DaveyM6925-Jul-08 9:04

DaveyM69

25-Jul-08 9:04

I don't think there is one. However, a string is really a null terminated character array + it has a ToCharArray method. As the previous poster said there's also the string builder if you need it.

Another alternative is to use a List<char>

Dave
BTW, in software, hope and pray is not a viable strategy. (Luc Pattyn)

HttpRequest and Submit button in html

f4hd25-Jul-08 8:24

f4hd

25-Jul-08 8:24

Hi,

I'm trying to run a ccxml, and consequently, a voiceXML page externally from the server (like through my application) and the documentation of the server mention that it can be done using HTTP POST.

Following is a simple example of html that works and successfully starts a call on a remote destination

<html>
	<body>
		<form method="post" action="http://localhost:4045/basichttp" enctype="application/x-www-form-urlencoded">
			ID="Form1">
			name: <input type="text" name="name" size="40" value="OutBoundCallEvent" id="Text1" />
			<br />
			URI to be contacted by the outbound: <input type="text" name="ToBeContacted_URI" size="52" value="10.2.50.42" id="Text5" />
			<br />
			VoiceXML URI: <input type="text" name="VoiceXML_URI" size="73" value="file:///C:/voiceXML/three.vxml">
				ID="Text6" />
			<br />
			CCXML URI: <input type="text" name="uri" size="75" value="file:///C:/CCXML/outboundcall.ccxml">
				ID="Text7" />
			<br />
			<input type="submit" id="Submit1" name="Submit1">
		</input></input></input></form>
	</body>
</html>

But I want to achieve the same effect through my c# application and I am using HttpRequest and HttpResponse to mimic submitting the form above.

following is my attempt on this

string uri = @"http://localhost:4045/basichttp";
string data = @"name=OutBoundCallEvent&ToBeContacted_URI=10.2.50.42&VoiceXML_URI=file:///C:/voiceXML/three.vxml&uri=file:///C:/CCXML/outboundcall.ccxml";
byte [] bytes = System.Text.Encoding.ASCII.GetBytes(data);

HttpWebRequest req = (HttpWebRequest) WebRequest.Create(uri);
req.ContentType = "application/x-www-form-urlencoded";
req.Method = "POST";
req.ContentLength = bytes.Length;

System.IO.Stream os = req.GetRequestStream();
os.Write (bytes, 0, bytes.Length);
os.Close();

HttpWebResponse resp = (HttpWebResponse) req.GetResponse();
if (resp== null)
{
    MessageBox.Show("Problem in sending response!");
}


System.IO.StreamReader sr = new System.IO.StreamReader(resp.GetResponseStream());
string result = sr.ReadToEnd().Trim();
MessageBox.Show("All done!");

Now when I try to get the response using HttpResponse I get an error " The remote server returned an error: (400) Bad Request."

Q1 Does writing the data into the stream means the server has send the data just like pressing the submit button? or does the using the gerResponse method this happens?
Q2 Is there something im missing in order to achieve a simple submit function? I have tried sending some data over to an asp page and use response like above and it all seems to work fine.

Any help will be greatly appreciated.
Kind Regards
Fahd

Re: HttpRequest and Submit button in html

f4hd31-Jul-08 5:40

f4hd

31-Jul-08 5:40

I found out the problem I am not sending the data string in the proper format it requires escape characters for slashes etc!!!

Btw just to share I was advised to use a tool called Fiddler to examine the data sent to the server which in turn lead me to find out my mistake. Seems to be a pretty neat tool.

Fahd

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