WebBrowser and swf textbox and button - C# Discussion Boards

You're welcome Smile | :)

BillWoodruff wrote:
"Raising the stakes" from 100k to 1 million total objects yielded a 98+ megabyte MemoryStream that Gzipped to a 30.6mb file with both 'Optimal, and 'Fastest compression. That does make me question the efficiency of Gzip in .NET.

Alternatively, one could launch an external process and wait for the command to finish. And suddenly, one can easily switch out the ZIP and try an ARJ, or a LHArc Smile | :)

BillWoodruff wrote:
I feel I should write up a Tip-Trick for CP.

Please do

Bastard Programmer from Hell Suspicious | :suss:

If you can't read my code, try converting it here[^]

Eddy Vluggen wrote:
Alternatively, one could launch an external process and wait forthe command to finish. And suddenly, one can easily switch out the ZIP and try an ARJ, or a LHArc

I have thought about experimenting with launching something like 7-Zip via Process.Start, as suggested (but never detailed) on the 7-Zip discussion forums, but I wonder if, in using any externally launched process, the (possibly required) transfer of the stream to be compressed, or the creation of a "temp" file to hold the stream, before invoking the external process' facilities, would add an "overhead" that would negate its benefit.

I have SharpCompress, found here on CodeProject [^], working, but am not seeing any radical improvement in the current test case over .NET's built-in GZip.

Yesterday I spent a few hours trying to get SharpZipLib [^] working in VS 2012, FrameWork 4.5, without success. But, I'll try that again today.

thanks, again, Bill

~
“This isn't right; this isn't even wrong." Wolfgang Pauli, commenting on a physics paper submitted for a journal

modified 19-Jul-13 1:10am.

BillWoodruff wrote:
would add an "overhead" that would negate its benefit.

To answer that, one needs to investigate both overhead and benefit. Yes, it does introduce a slight overhead - but not very much if you hide the console-window. Consider it an isolated, switchable, heavyweight instance of a thread.

BillWoodruff wrote:
SharpCompress, SharpZipLib

Let's also add DotNetZip [^]. And LZMA[^].

Bastard Programmer from Hell Suspicious | :suss:

If you can't read my code, try converting it here[^]

See http://www.virtualdub.org/blog/pivot/entry.php?id=335[^] for how much it sucks.
There are various 3rd party deflate libs that suck less, I recommend SharpZipLib (nice license, too).

Though personally I recommend not using the built-in serialization in the first place and just dumping your raw data in a stream. It's a little more work up-front, but it's more flexible, a lot faster, and your data format will actually make sense (which is not always important of course). You can still put it through Deflate of course, I tend to do that (easier than explicitly storing sparse arrays and such).

That's an excellent analysis of GZip's limitations, in the article you cite, on virtualdub.com !

As I just commented to Eddy (post above): "Yesterday I spent a few hours trying to get SharpZipLib working in VS 2012, FrameWork 4.5, without success. But, I'll try that again today."

thanks, Bill

~
“This isn't right; this isn't even wrong." Wolfgang Pauli, commenting on a physics paper submitted for a journal

GZip Stream writes information to the stream after it is "closed" when creating the compressed zip stream. Do not wrap your compression in the using block. Call flush before closing out the stream when compressing. Then your decompress code may work.

Need custom software developed? I do custom programming based primarily on MS tools with an emphasis on C# development and consulting.

"And they, since they Were not the one dead, turned to their affairs" -- Robert Frost

"All users always want Excel" --Ennis Lynch

Thanks, Ennis, I was aware of that issue, and in the OP, I cited a response on StackOverFlow:

"I've already learned the hard way that there is a quirk in using GZip in .NET in compressing [^]:"

That post cites a Microsoft BCL blog: [^].

yours, Bill

“This isn't right. This isn't even wrong." Wolfgang Pauli

How can I select flash textbox, past text, and click button in C# WebBrowser?

TextBox and Button: s7.postimg.org/oh2w84js7/button.jpg

Form where button is:

HTML

<form name="working" action="object_do.php" method="POST"><br><table class="wb" width="100%"><tbody><tr><td class="wbwhite" align="center" colspan="2">blahblahblah</td></tr><tr><td class="wb" width="140"><img src="work_codes/15903-34/1701507--381682.jpeg" width="250" height="60" border="0" name="imgcode"></td><td class="wblight" valign="center" width="100%">   <input type="hidden" size="4" name="code" autocomplete="off"><input type="hidden" value="5" name="id"><input type="hidden" value="5" name="id2"><script type="text/javascript">swfobject.registerObject("2e7f13a242369aa0a133ee3dced5bf5d", "9.0.0", "http://***/swffiles/expressInstall.swf");</script>
    <div>   
                <object id="2e7f13a242369aa0a133ee3dced5bf5d" classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" width="147" height="22" style="visibility: visible;">
                    <param name="movie" value="swffiles/459017015079176508wworkcode.swf?ver=1701507bf3d40fb076319ff7e6c2fc7a4898acdd88">
                <param name="FlashVars" value="params=1701507|5|f3d40fb076319ff7e6c2fc7a4898acdd|">
                <param name="bgcolor" value="#f5f3ea">
                <param name="allowScriptAccess" value="always"><param name="wmode" value="opaque"><!--[if !IE]>-->
BUTTON AND TEXT BOX----------->     <object type="application/x-shockwave-flash" data="swffiles/459017015079176508wworkcode.swf?ver=1701507bf3d40fb076319ff7e6c2fc7a4898acdd88" width="147" height="22">
                <param name="FlashVars" value="params=1701507|5|f3d40fb076319ff7e6c2fc7a4898acdd|">
                <param name="bgcolor" value="#f5f3ea">
                <param name="allowScriptAccess" value="always"><param name="wmode" value="opaque"><!--<![endif]-->
                    <div>
                        <p><a href="http://www.adobe.com/go/getflashplayer"><img src="http://www.adobe.com/images/shared/download_buttons/get_flash_player.gif" alt="Get Adobe Flash player"></a></p>
                    </div>
                    <!--[if !IE]>-->
                    </object>
                    <!--<![endif]-->
                </object>
            </div></td></tr><tr><td class="wblight" colspan="2"><br>   blahblahblah "blah".</td></tr></tbody></table></form>

it is inconceivable copying from flash file because it is compiled and how you want do that?
it's my opinion Smile | :)

-Amir Mohammad Nasrollahi

/* LIFE RUNS ON CODE */

Hi Guys,

Recently i am working on an assignment where i need to find a 3rd party software to download and print a pdf on different browser including (IE6,7,8,9) and Mozila,crome ,Opera etc..

i found a few but not sure which one would be suitable

http://www.debenu.com/kb/setup-c-and-visual-studio-for-use-with-debenu-quick-pdf-library/[^]

http://www.verypdf.com/app/pdf-editor/pdf-viewer-ocx-control-activex.html[^]

http://www.foxitsoftware.com/products/sdk/print-manager/pricing.php[^]

can you please help me in selecting one .. may be the one can be used with windows based application as well.

Regards,
Tasu

vikas da

I fail to understand the reason behind that requirement. Adobe Acrobat reader is available for many browsers (perhaps no more supporting extremely outdated legacy browsers like IE6 or NetScape 4) on many platforms - even Linux. And most browsers are already configured to use that. Why do you insist on soemthing different?

good

/* LIFE RUNS ON CODE */

as what "Bernhard Hiller" says adobe acrobat is free and suported by many browsers but from your selections list, verypdf can be better because of prices and good support (tasted by one of my friends)

/* LIFE RUNS ON CODE */

Hi,
i face a problem to create a setup of window application in vs2010.
for create a setup i use vs window installer and done step by step as i seen many examples in Google( how to create setup for window application).
But in my case shortcut create in desktop, but when i click on the shortcut it will running look like as it install project again.
same uninstall project create in all programs but when i click on them nothing happens.

please help me.
Thanks.

Create shortcut of executable by right click on it in Application Folder in “File System” Section of Setup Project. And then cut the shortcut of file and paste it into user desktop folder and build the project.

It should work.

Hello All,

I was wanting to start a discussion about best practice when creating threads in a Windows Service.

I have a service that has multiple process running at the same time (6-10). Is it better to use timers or threads? I personally prefer threads because I can end them all with a single line of code where as if have to end each timer individually. Plus with threads, you don't have to worry about it calling it self until you want it to.

Does anybody have any other thoughts on this? What's a better way to go and why? Which is lighter on PC usage and memory? etc etc

Thanks in advance,
Bryan

BBatts wrote:
Is it better to use timers or threads?

When the timer fires it uses a thread.

BBatts wrote:
Plus with threads, you don't have to worry about it calling it self until you
want it to.

Huh? If the thread is running and not blocked then it is fact running. If you weren't saying that I am not sure what you are saying because the execution flow is always in one thread or another.

BBatts wrote:
because I can end them all with a single line of code

Not sure what that means exactly. At least sometimes one can't just end threads arbitrarily and sometimes one must end them in a certain order. But the same applies to timers but only to the extent that they too are using threads.

"When the timer fires it uses a thread."

Yes. To be more specific a timer is an object the fires a thread periodically.

"Huh? If the thread is running and not blocked then it is fact running"

If the thread your timer has fired takes longer to execute than the interval level of a timer it will fire again. Unless, of course, you disable it. Where as if one is using a System.Thread there is more direct control over when and how the thread is fired.

I can't think of any reason to use a Timer as opposed to System.Thread...in a windows service. I guess that was the point of my post.

BBatts wrote:
System.Thread there is more direct control over when and how the thread is
fired.

How exactly do you "fire" a thread in the above?
How exactly do you think that process is different than what a timer does?

BBatts wrote:
I can't think of any reason to use a Timer as opposed to System.Thread...in a
windows service

Because one wants an action to occur based on something associated with time. For example running a process every hour or once a day.

You are not comparing like with like: timers have one purpose, threads another.

Use the best guess

Quote:
I have a service that has multiple process running at the same time (6-10)

is it multiple thread or process..??and what are you trying to achieve with timer or thread..?

can you please be bit more specific..

vikas da

Yes. It performs varies disk related services. Clean Up, Archive, Backup, etc etc. There can be up to 6 process running at the same time.

I currently create and fire 6 System.Threads on the Start() event. Each thread has a loop that keeps it running with a Thread.Delay, so they look something like this:

C#

private void WorkerThread_DoWork()
{
  while (contiueWorking)
  {
    //Perform Some Task

    System.Threading.Thread.Sleep(10000);
  }
}

The task may or may not take longer than 10 seconds to complete, depending on the amount of data that is being managed. So, my question is (and admittedly I'm stumbling trying to ask it) would it be better to have 6 timers in this situation or should I stick with the threads? Or am I simply overthinking it.

I'd be using Timers for this purpose. As it's by far easier to control the execution of the timer instead of a thread.

I generally use the System.Threading.Timer with the following callback pattern:

Initialize it like that:

C#

// Declaration:
System.Threading.Timer _timer;

//Initialization:
_timer = new System.Threading.Timer(OnTimer, null, 10000, System.Threading.Timeout.Infinite);

And this callback method

C#

private void OnTimer(object state) {
   try {
      // Do your stuff here
   } catch (Exception ex) {
      // Errorhandling  
   } finally {
      // the first parameter is the delay until the callback method will be called again
      // the second parameter defines the interval in which it will be rais. Timeout.Infition -> Disabled
      _timer.Change(10000, System.Threading.Timeout.Infinite);
   }
}

To stop the timer just call:

C#

_timer.Change(System.Threading.Timeout.Infinite, System.Threading.Timeout.Infinite);

If you use it like that it should never ever be called concurrently as after the first event the timer is disabled until you manually reenable it (i.e. in the finally clause)

Greetings

Thanks Nicholas, I've never seen it done that way!

Hi all.

I have a problem need someone help. I have a form main, I do not know how to display the menu when a user logged. Please help me, thank you.

I've tried this Dynamic MainMenu formation in WinForm Application using DataSet[^], but without success.