Re: c# pointers ? - C# Discussion Boards

Re: c# pointers ?

David198723-Jul-11 7:01

David1987

23-Jul-11 7:01

Ah I forgot enums.. thanks

Re: c# pointers ?

Dan Mos22-Jul-11 12:50

Dan Mos

22-Jul-11 12:50

Depends on how many objects of your class you'll have/load at a time.
If you have many each of them keeping a few mb of data, not so OK.

A different approach(that I mostly use) is to create separate methods in the "DataLayer" one that loads
only id and name(null or zero sized/empty byte[]). And another one thatn loads the byte[] too, or maybe just the byte[]
for a given ID.

That way a much lower impact on memory and speed too(given that the byte[] can be easily retrieved by using the ID
in the DB if any). In other words load the few mb only when required/needed.

My post/answer utterly assumes that there is a DB somewhere. If not, please ignore it.

All the best,

Dan

Re: c# pointers ?

l a u r e n23-Jul-11 1:41

l a u r e n

23-Jul-11 1:41

essentially what i'm doing yes
except the database is over the wire and the data is downloaded on demand

my actual question is explained better above
thnx
Smile | :)

"mostly watching the human race is like watching dogs watch tv ... they see the pictures move but the meaning escapes them"

Re: c# pointers ?

PIEBALDconsult22-Jul-11 14:33

PIEBALDconsult

22-Jul-11 14:33

l a u r e n wrote:
should i simply use the existing class

Sure, but maybe it needs a ToString method?

Re: c# pointers ?

l a u r e n23-Jul-11 1:42

l a u r e n

23-Jul-11 1:42

no idea what this means / relates to but thanks for trying to help
Smile | :)

"mostly watching the human race is like watching dogs watch tv ... they see the pictures move but the meaning escapes them"

Re: c# pointers ?

David198722-Jul-11 22:01

David1987

22-Jul-11 22:01

l a u r e n wrote:
there aren't really pointers in c# as such

There are.

Re: c# pointers ?

l a u r e n23-Jul-11 1:34

l a u r e n

23-Jul-11 1:34

yes i know there *are* pointers in c# but they are not the *preferred* way of writing c# afaik

if i wanted to write my code as i see best i wouldn't use .net for anything but i am trying to do things right

"mostly watching the human race is like watching dogs watch tv ... they see the pictures move but the meaning escapes them"

Re: c# pointers ?

Abhinav S22-Jul-11 22:17

Abhinav S

22-Jul-11 22:17

Use the existing class.

You can always use pointers in C#. Its called unsafe code.

Too much of heaven can bring you underground
Heaven can always turn around
Too much of heaven, our life is all hell bound
Heaven, the kill that makes no sound

how to send data to website without open the browser

Gali197822-Jul-11 8:10

Gali1978

22-Jul-11 8:10

i have website that send SMS

i need to send any query to this web but i dont want to open the browser

i try this: `System.Diagnostics.Process.Start("IExplore.exe", MyWeb + sbXml.ToString());`

its work excellent - but it open the website in the browser

thanks in advance

Re: how to send data to website without open the browser

Blue_Boy22-Jul-11 8:23

Blue_Boy

22-Jul-11 8:23

Gali1978 wrote:
i need to send any query to this web but i dont want to open the browser

Which is purpose of that?!

I Love T-SQL
"VB.NET is developed with C#.NET"
If my post helps you kindly save my time by voting my post.

www.cacttus.com

Re: how to send data to website without open the browser

David198722-Jul-11 8:27

David1987

22-Jul-11 8:27

What query? An HTTP GET? You could use HttpWebRequest[^]

Re: how to send data to website without open the browser

Gali197822-Jul-11 9:21

Gali1978

22-Jul-11 9:21

thanks for the help,
i have website that send SMS

can i get any sample C# code for how to use HttpWebRequest ?

thanks

Re: how to send data to website without open the browser

AspDotNetDev22-Jul-11 9:45

AspDotNetDev

22-Jul-11 9:45

HttpWebRequest/Response in a Nutshell - Part 1

Martin Fowler wrote:
Any fool can write code that a computer can understand. Good programmers write code that humans can understand.

Re: how to send data to website without open the browser

shd3524-Jul-11 1:25

shd35

24-Jul-11 1:25

that is true but the catch is that u need to write a code that they both understand

Re: how to send data to website without open the browser

AspDotNetDev24-Jul-11 8:32

AspDotNetDev

24-Jul-11 8:32

I have no idea what you mean.

Martin Fowler wrote:
Any fool can write code that a computer can understand. Good programmers write code that humans can understand.

Re: how to send data to website without open the browser

dongye062222-Jul-11 17:11

dongye0622

22-Jul-11 17:11

Hope this information can give you some help http://global.sjzp.com

Re: how to send data to website without open the browser

#realJSOP25-Jul-11 1:56

#realJSOP

25-Jul-11 1:56

Use HttpWebReuqest. Google is your friend.

".45 ACP - because shooting twice is just silly" - JSOP, 2010
-----
You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010
-----
"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

Master page load problem

Any_India22-Jul-11 8:09

Any_India

22-Jul-11 8:09

Hi
I want to stop the reload of master page on every page call.master page code should load first time after that when other page will call than master page loaded data should be as it is ,only need the page data should change.

please help

Re: Master page load problem

Blue_Boy22-Jul-11 8:23

Blue_Boy

22-Jul-11 8:23

Try to use AJAX.

I Love T-SQL
"VB.NET is developed with C#.NET"
If my post helps you kindly save my time by voting my post.

www.cacttus.com

Hash Whirlpool

abbd22-Jul-11 5:03

abbd

22-Jul-11 5:03

Is there a Whirlpool class in C# ?

Re: Hash Whirlpool

David198722-Jul-11 5:12

David1987

22-Jul-11 5:12

Here you go: https://code.google.com/p/csharptest-net/source/browse/src/Library/Crypto/WhirlpoolManaged.cs[^]
Easy enough to find..

(Proper) Last chance exception handling [modified]

Deian22-Jul-11 4:35

Deian

22-Jul-11 4:35

Hello,

I've read tons of materials all over codeproject and google about last chance exception handling. Most of the suggested solutions include subscribing to Application.ThreadException and AppDomain.CurrentDomain.UnhandledException to handle both exceptions in current and different thread context. Under debug configuration the exceptions are caught as expected, but under release the CLR unhandled exception dialog is shown and the handler is not invoked.

What is the proper way of handling ALL exceptions (as to provide logging before exit) in WinForms application?

modified on Friday, July 22, 2011 10:46 AM

Re: (Proper) Last chance exception handling

BobJanova25-Jul-11 3:09

BobJanova

25-Jul-11 3:09

I've attached a handler to AppDomain.CurrentDomain.UnhandledException with good results. You need to do it before you call Application.Run, though.

Re: (Proper) Last chance exception handling

Deian25-Jul-11 4:49

Deian

25-Jul-11 4:49

It is attached at the beginning of Main() (much before Application.Run) as follows:

[STAThread]
static void Main()
{
 Application.SetUnhandledExceptionMode(UnhandledExceptionMode.CatchException);
 Application.ThreadException += new System.Threading.ThreadExceptionEventHandler(Application_ThreadException);
 AppDomain.CurrentDomain.UnhandledException += new UnhandledExceptionEventHandler(CurrentDomain_UnhandledException);
 ...
}

Did you catch the exceptions under Release configuration?

Re: (Proper) Last chance exception handling

BobJanova25-Jul-11 6:06

BobJanova

25-Jul-11 6:06

Yes. I didn't even do the first call. It is only for exceptions in the UI thread, though ... I don't have a ThreadException handler (all threaded code is self-protected).

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