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  • which version of the code below is right?

    - by TheVillageIdiot
    Hi I found this function in a utilities code file: Version 1: public static bool IsValidLong(string strLong) { bool result = true; try { long tmp = long.Parse(strLong); } catch (Exception ex) { result = false; } return result; } I want to replace this (and validators for other types) with following: Version 2: public static bool IsValidLong(string strLong) { long l; return long.TryParse(strLong, out l); } which version is better and why?

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  • How to refactor this MySQL code?

    - by Jader Dias
    SELECT * ( SELECT * FROM `table1` WHERE `id` NOT IN ( SELECT `id` FROM `table2` WHERE `col4` = 5 ) group by `col2` having sum(`col3`) > 0 UNION SELECT * FROM `table1` WHERE `id` NOT IN ( SELECT `id` FROM `table2` WHERE `col4` = 5 ) group by `col2` having sum(`col3`) = 0 ) t1; For readability and performance reasons, I think this code could be refactored. But how?

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  • adding the style attribute via code

    - by nourdine
    hello I was wondering how to assign a style via code in adroid. suppose I have a TextView created with the following snippet: TextView myText = new TextView(this); how do I assign the class xxx so that myText will be styled like an hard coded TextView like this: <TextView style="@style/xxx" /> thanks

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  • [CPAINT Error] invalid HTTP response code ‘0’

    - by Abs
    Hello all, I am trying to make use of a script that uses CPAINT and I keep getting the error above when I click on favourite an item (a 5 star rating system). It looks like it is making an AJAX request but I can not see this from my Firebug to debug this - why is this the case? More importantly what does the error code 0 mean? Thank you all for any help

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  • TinyMCE not working in ie with this code

    - by jasmine
    TinyMCE not working in ie with this js code. How can I solve the problem. Thanks in advance <script type="text/javascript"> tinyMCE.init({ theme : "advanced", mode : "textareas", plugin : "tinyBrowser, media", file_browser_callback : "tinyBrowser", }); function toggleEditor(id) { if (!tinyMCE.get(id)) tinyMCE.execCommand("mceAddControl", false, id); else tinyMCE.execCommand("mceRemoveControl", false, id); } </script>

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  • Is there a common practice how to make freeing memory for Garbage Collector easier in .NET?

    - by MartyIX
    I've been thinking if there's a way how to speed up freeing memory in .NET. I'm creating a game in .NET (only managed code) where no significant graphics is needed but still I would like to write it properly in order to not to lose performance for nothing. For example is it useful to assign null value to objects that are not longer needed? I see this in a few samples over Internet. Thanks for answers!

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  • What is wrong in the jquery code?

    - by phpBOY
    I have been struggling in fixing this code, wonder what is wrong at all... var tips = "<p class="adobe-reader-download">Most computers will open PDF documents automatically, but you may need to download <a title='Link to Adobe website-opens in a new window'"; tips +=" href='http://www.adobe.com/products/acrobat/readstep2.html' target='_blank'>Adobe Reader</a>.</p>"; if($("div#maincontent a[href*='.pdf']").length>0){ $("div#maincontent").children(":last-child").after(tip);

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  • How to load jni from sd card on android 2.1?

    - by user263423
    I want to load third-party jni library in runtime. I've tried to load directly from sdcard. It expectedly failed. I've tried to copy library from sdcard to /data/data/app/ and then System.load(/data/data/libjni.so) It works on HTC HERO, but fails on HTC Legend with Android 2.1. it fails during execution of native code and write to log uninformative stack trace Any other way to do it?

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  • PHP error handling : my code is not optimized

    - by Tristan
    Hello, I must warn you, this code will heart your eyes, so please don't judge me, i'm trying to improve the way I handle errors all my tests are like this : if ($something < 27) { $error_IP= '<div class="error_message">something bad</div> '; }else{ $erreur_IP=''; } and here's the ugliest thing : if( !isset($_POST) || ($erreur_captcha !='') || ($erreur_email !='') || ($erreur_hebergeurVide != '') || ($erreur_paysVide != '') || ($erreur_slotVide != '') || ($erreur_rconVide != '') || ($erreur_tick != '') + a lot more :d ) What do you suggest to me to optimize my errors handling ? Thank you

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  • What is wrong with this C++ Code ?

    - by mr.bio
    Hi .. i am a beginner and i have a problem : this code doesnt compile : main.cpp: #include <stdlib.h> #include "readdir.h" #include "mysql.h" #include "readimage.h" int main(int argc, char** argv) { if (argc>1){ readdir(argv[1]); // test(); return (EXIT_SUCCESS); } std::cout << "Bitte Pfad angeben !" << std::endl ; return (EXIT_FAILURE); } readimage.cpp #include <Magick++.h> #include <iostream> #include <vector> using namespace Magick; using namespace std; void readImage(std::vector<string> &filenames) { for (unsigned int i = 0; i < filenames.size(); ++i) { try { Image img("binary/" + filenames.at(i)); for (unsigned int y = 1; y < img.rows(); y++) { for (unsigned int x = 1; x < img.columns(); x++) { ColorRGB rgb(img.pixelColor(x, y)); // cout << "x: " << x << " y: " << y << " : " << rgb.red() << endl; } } cout << "done " << i << endl; } catch (Magick::Exception & error) { cerr << "Caught Magick++ exception: " << error.what() << endl; } } } readimage.h #ifndef _READIMAGE_H #define _READIMAGE_H #include <Magick++.h> #include <iostream> #include <vector> #include <string> using namespace Magick; using namespace std; void readImage(vector<string> &filenames) #endif /* _READIMAGE_H */ If want to compile it with this code : g++ main.cpp Magick++-config --cflags --cppflags --ldflags --libs readimage.cpp i get this error message : main.cpp:5: error: expected initializer before ‘int’ i have no clue , why ? :( Can somebody help me ? :)

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  • How to get data source for Spring Security Web in Java code

    - by user1443689
    I'm creating a ZK Web application which uses Spring Security for authentication and I'm trying to implement a create user function, where the administrator supplies the details and the user account is created. I've got to the part where I want to put this data into the database, but now I'm thinking I shouldn't hard code the connection to the database, there must be a way to get the connection details from the Spring Security configuration. Is there? If so how?

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  • PHP Code and Linefeeds/Carriage Returns

    - by tonsils
    Hi, Just wondering, would the following code arrangement cause any issues when calling mysql_connect, i.e.: public function connect() { mysql_connect($this->host, $this->username, $this->password) or die("Could not connect. " . mysql_error()); or does it need to be all on one line, i.e.: mysql_connect($this->host,$this->username,$this->password) or die("Could not connect. " . mysql_error()); Thanks.

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  • Good tool to convert sourcecode to PDF?

    - by Toad
    I've a daunting task of getting familiair and possibly re-architecting large pieces of old source code. I was hoping there would be a nice tool to convert php (in my case), but let's make it more general: any language to PDF, for offline browsing on a Kindle or Ipad Would be ideal if it would create indexes / hyperlinks automatically. So function calls can be easily browsed into

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  • Simulate memory warnings from the code, possible?

    - by krasnyk
    I know i can simulate a memory warning on the simulator by selecting 'Simulate Memory Warning' from the drop down menu of the iPhone Simulator. I can even make a hot key for that. But this is not what I'd like to achieve. I'd like to do that from the code by simply, lets say doing it every 5 seconds. Is that possible?

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  • Why does this python code work?

    - by Int-0
    I have written a simple python module, it has this code: _log = logging.getLogger("mymodule") _started = False def set_log_level(level): _log.setLevel(level) if not _started: _hdlr = logging.FileHandler('mymodule.log') When I call set_log_level() program fails because symbol _started is not found. It is normal because global _started is missing in the method. But my question is: symbol _log has the same visibility as _started, so why does this symbol can be found? BR, // Toby

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