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  • WPF DataGrid row validation error count

    - by SuperFloh1234
    Hi! I'm currently facing the problem, that I import an Excel file to a DataGrid. This works pretty fine, but after importing the table, I need to know how many rows are invalid. I have applied several validation rules for the different datatypes, and I have an icon in the row header, that shows up if the row is invalid. But since I have more that 10.000 rows in the grid, I don't want scroll all the way through it to find the errors. Any ideas, how to determine the count of invalid rows (and then maybe bind that to a textbox)? Thx

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  • Automatic exit from bash shell script on error

    - by radman
    Hi, I've been writing some shell script and I would find it useful if there was the ability to halt the execution of said shell script if any of the commands failed. See below for an example: #!/bin/bash cd some_dir ./configure --some-flags make make install So in this case if the script can't change to the indicated directory then it would certainly not want to do a ./configure afterward it fails. Now I'm well aware that I could have an if check for each command (which I think is a hopeless solution), but is there a global setting to make the script exit if one of the commands fails?

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  • best practice on precedence of variable declaration and error handling in C

    - by guest
    is there an advantage in one of the following two approaches over the other? here it is first tested, whether fopen succeeds at all and then all the variable declarations take place, to ensure they are not carried out, since they mustn't have had to void func(void) { FILE *fd; if ((fd = fopen("blafoo", "+r")) == NULL ) { fprintf(stderr, "fopen() failed\n"); exit(EXIT_FAILURE); } int a, b, c; float d, e, f; /* variable declarations */ /* remaining code */ } this is just the opposite. all variable declarations take place, even if fopen fails void func(void) { FILE *fd; int a, b, c; float d, e, f; /* variable declarations */ if ((fd = fopen("blafoo", "+r")) == NULL ) { fprintf(stderr, "fopen() failed\n"); exit(EXIT_FAILURE); } /* remaining code */ } does the second approach produce any additional cost, when fopen fails? would love to hear your thoughts!

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  • Flash won't load, embed error?

    - by Adrian M.
    Hello, I want to know why the flash movie in the header located here: http://www.dolphintemplate.com/demo/dolphin7/index.php?skin=dt_firestarter_red only loads in Firefox but NOT in IE and Chrome.. The flash movie resides in a iframe, this is the code of the iframe: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" > <head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" /> <title>header</title> </head> <body bgcolor="#000000" topmargin="0" leftmargin="0" marginwidth="0" marginheight="0"> <object data="header.swf" type="application/x-shockwave-flash" id="myflash" width="988" height="240"> <param name="movie" value="header.swf" /> <param name="bgcolor" value="#000000" /> <param name="height" value="988" /> <param name="width" value="240" /> <param name="quality" value="high" /> <param name="menu" value="false" /> <param name="allowscriptaccess" value="samedomain" /> <p>Adobe <a href="http://get.adobe.com/flashplayer/">Flash Player</a> is required to view this content.</p> </object> </body> </html> Thanks.

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  • Multi-core processors: Better performance running multiple applications?

    - by aip.cd.aish
    I realize for single applications - the application itself has to be designed to take advantage of multiple cores. But what about executing many different applications simultaneously? On my development machine at an average instance, I run multiple servers (a database server, a web server), multiple instance of IDEs (either Visual Studio or NetBeans), Web-browser with multiple tabs (in Chrome, each tab is a process on its own), FTP client, SSH client etc. Does having a multi-core system improve the ability to run multiple applications simultaneously?

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  • Should I ignore the occasional Invalid viewstate error?

    - by Richard Ev
    Every now and then (once every day or so) we're seeing the following types of errors in our logs for an ASP.NET 3.5 application Invalid viewstate Invalid postback or callback argument Are these something that "just happens" from time-to-time with an ASP.NET application? Would anyone recommend we spend a lot of time trying to diagnose what's causing the issues?

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  • Editing css by js in ie giving error

    - by user307635
    i need to do this. document.styleSheets[i].rules[1].style.cssText = "cursor: url(images/grabbing.cur), default !important;"; and if i m checking alert(document.styleSheets[i].rules[1].style.cssText); its giving "cursor: !important" why its not setting the whole string in this css. its a problem in ie only . in firefox its not a problem

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  • Import Error when use templatetags in Django

    - by zmfantasy
    Well, when I'm trying to use 'inclusion' in Django, I met some confused problems that I can't solve it by myself. There is the structures for my project. MyProject--- App1--- __init__.py models.py test.py urls.py views.py App2--- ... template--- App1--- some htmls App2--- ... templatetags--- __init__.py inclusion_test.py manage.py urls.py __init__.py settings.py I have registered templatetags folder in the settings.py (Both in Installed APPS & TEMPLATE_DIRS). But when I want to use {% load inclusion_test %} in my html, it raise an exception like this: 'inclusion_cld_tags' is not a valid tag library: Could not load template library from django.templatetags.inclusion_cld_tags, No module named inclusion_cld_tags I think there is nothing wrong with my import work, how can I do with that? Thanks for help! My django version: 1.0+ My Python version: 2.6.4

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  • IE 8 html parsing error message.

    - by user48408
    I'm experiencing the problem outlined in this kb article. http://support.microsoft.com/kb/927917 . Sorry I can't hyperlink cos i don't have enough points! "This problem occurs because a child container HTML element contains script that tries to modify the parent container element of the child container. The script tries to modify the parent container element by using either the innerHTML method or the appendChild method." The problem I'm having diagnosing the source of my problem is 2 fold: 1) This is only happening on some client machines (All are running IE8) and not others. How/Why only some? 2) I don't have any scripts which modify the innerHTML or call appendChild on any dom elements. I do have server side code which modify properties on asp .net server controls. (Essentially all thats happening is a panel control with some more controls is being made visbile or invisible on a button click), would these in turn then set the innerHTML property of the client rendered control(?)

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  • Keyboard shortcut for Jump to Definition

    - by Arne Evertsson
    I'm looking for a keyboard only shortcut for Jump to Definition. The built-in shortcut requires the mouse: Cmd + Double click. I've tried to add a regular keyboard shorcut for the Edit / Find / Jump to Defintion menu command, but, alas, it will only work when the method name is selected. I'd like to be able to position the cursor within the method name, class name, or other symbol, and hit something like Cmd+Shift+L. Does anyone know of a solution, perhaps using a script, for the problem? Update: The keyboard shortcut works sometimes and sometimes not. When I position the text cursor on a method call with no parameters and press Cmd+Shift+L it takes me to the definition. But it doesn't work for a method that takes an (id) parameter. However it works if the parameter is an int. I have submitted a bug report to Apple.

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  • PHP RegExpr error Unkown modifier '('

    - by Anonymous
    I have this regular expression: ([http://some.url.com/index.php?showtopic=\"]*)([0-9]+(?:\.[0-9]*)?) its for extracting links to topics from forum Now when i use it in my script $url = "([http://some.url.com/index.php?showtopic=\"]*)([0-9]+(?:\.[0-9]*)?)"; preg_match_all spits: "Unknown modifier '('" Can anyone help me with this obviously stupid problem

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  • Visual Studio - easy way to bring up type definition as source code

    - by Igor Zevaka
    Oftentimes I want to bring up a system class in a source view, so that I can browse the properties and methods exposed by the class in a source view. Below is the screenshot of what I mean: Usually I do this by selecting the class name and pressing F12 (or right clickGo To Definition). However, if I haven't got it anywhere ready, i have type it up and then do Go To Definition. Most of the time I have to delete what I typed later on. Is there a way to bring up this view without having to type the class name? The VS2010 Navigate To dialog doesn't support this.

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  • Catching error caused by InitialContext.lookup

    - by Martin Schröder
    I'm developing a command line client (Java SE6) that now needs to talk to a Glassfish 2.1 server. The code for setting up this connection is try { final InitialContext context = new InitialContext(); final String ejbName = GeneratorCancelledRemote.class.getName(); generatorCancelled = (GeneratorCancelledRemote) context.lookup(ejbName); } catch (Throwable t) { System.err.println("--> Could not call server:"); t.printStackTrace(System.err); runWithOutEJB = true; } I'm now testing it without a running server and the client (when run from Eclipse 4.2) just bombs with 31.10.2012 10:40:09 com.sun.corba.ee.impl.transport.SocketOrChannelConnectionImpl WARNUNG: "IOP00410201: (COMM_FAILURE) Connection failure: socketType: IIOP_CLEAR_TEXT; hostname: localhost; port: 3700" org.omg.CORBA.COMM_FAILURE: vmcid: SUN minor code: 201 completed: No at com.sun.corba.ee.impl.logging.ORBUtilSystemException.connectFailure(ORBUtilSystemException.java:2783) at com.sun.corba.ee.impl.logging.ORBUtilSystemException.connectFailure(ORBUtilSystemException.java:2804) at com.sun.corba.ee.impl.transport.SocketOrChannelConnectionImpl.(SocketOrChannelConnectionImpl.java:261) at com.sun.corba.ee.impl.transport.SocketOrChannelConnectionImpl.(SocketOrChannelConnectionImpl.java:274) at com.sun.corba.ee.impl.transport.SocketOrChannelContactInfoImpl.createConnection(SocketOrChannelContactInfoImpl.java:130) at com.sun.corba.ee.impl.protocol.CorbaClientRequestDispatcherImpl.beginRequest(CorbaClientRequestDispatcherImpl.java:192) at com.sun.corba.ee.impl.protocol.CorbaClientDelegateImpl.request(CorbaClientDelegateImpl.java:184) at com.sun.corba.ee.impl.protocol.CorbaClientDelegateImpl.is_a(CorbaClientDelegateImpl.java:328) at org.omg.CORBA.portable.ObjectImpl._is_a(ObjectImpl.java:112) at org.omg.CosNaming.NamingContextHelper.narrow(NamingContextHelper.java:69) at com.sun.enterprise.naming.SerialContext.narrowProvider(SerialContext.java:134) at com.sun.enterprise.naming.SerialContext.getCachedProvider(SerialContext.java:259) at com.sun.enterprise.naming.SerialContext.getRemoteProvider(SerialContext.java:204) at com.sun.enterprise.naming.SerialContext.getProvider(SerialContext.java:159) at com.sun.enterprise.naming.SerialContext.lookup(SerialContext.java:409) at javax.naming.InitialContext.lookup(InitialContext.java:392) at com.werkii.latex.generator.Generator.main(Generator.java:344) Caused by: java.lang.RuntimeException: java.net.ConnectException: Connection refused: connect at com.sun.enterprise.iiop.IIOPSSLSocketFactory.createSocket(IIOPSSLSocketFactory.java:347) at com.sun.corba.ee.impl.transport.SocketOrChannelConnectionImpl.(SocketOrChannelConnectionImpl.java:244) ... 14 more Caused by: java.net.ConnectException: Connection refused: connect at sun.nio.ch.Net.connect(Native Method) at sun.nio.ch.SocketChannelImpl.connect(SocketChannelImpl.java:532) at com.sun.corba.ee.impl.orbutil.ORBUtility.openSocketChannel(ORBUtility.java:105) at com.sun.enterprise.iiop.IIOPSSLSocketFactory.createSocket(IIOPSSLSocketFactory.java:332) ... 15 more It's o.k. for now (while I'm still in development) that it bombs, but it does this repeatedly and the catch clause is never reached (even though I'm catching Throwable) - the message is not printed. So how can I handle connection errors during lookup in my program?

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  • Why i get everytime the error-message that i've already sent the headers

    - by mikep
    Hey, i've another question about web-programming. I programmed a login script, but everytime when i try to login it says that i've send the header informations already. Here are the 2 files: <?php if($_GET['logout'] == 1) { setcookie('authorized', 1, time()-3600); } ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>Login - photoAdminSite</title> </head> <style type="text/css"> body { text-align: center; font-family: helvetica; } #loginForm { padding: 1em; background: #e3e3e3; width: 260px; margin: 3em auto 0; text-align: left; } </style> <body> <div id="loginForm"> <form method="post" action="confirm_login_credentials.php"> <h2>LOGIN</h2> <p>Username: <input type="text" name="username" /></p> <p>Password: <input type="password" name="password" /></p> <p><input type="submit" value="Login" name="submit" /></p> </form> </div> </body> </html> <?php $username = $_POST['username']; $password = $_POST['password']; require 'database.php'; $q = "SELECT id FROM users_photoadminsite WHERE user_name = '$username' AND password = '$password'"; $result = $mysqli->query($q) or die(mysqli_error()); if (mysqli_num_rows($result) == 1) { setcookie('authorized', 1, 0); header("Location: index.php"); } else { header("Location: login.php"); } ?> i would be really happy about some helpful answers.

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  • How to nicely inform to the user that an unknown error has happened?

    - by Jaime Soriano
    There are several guidelines for error reporting, that are usually based on giving to the user useful information when he or she does something wrong, but to give this kind of information you need to be handling the error and know that it can happen. There are also tons of articles about designing 404 error pages. But, what can you do when it's a new, unhandled error provoked by a failure in the shoftware? Are there some guidelines about how to nicely report totally unexpected errors in a web site, as an unexpected error 500? What header message should be shown in that case? something like "Sorry, an unexpected error has ocurred" would be enough? What information should be given? Should it have mechanisms to help to report the failure to developers? Which ones?

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  • Jquery Javascript function, simple error, can't find it!

    - by CodingIsAwesome
    When my page loads it calls the function like below: <body onLoad='changeTDNodes()'> And the code it calls is below: enter code here <script src='jquery-1.4.2.min.js' type='text/javascript'></script> <script> function changeTDNodes() { var threshValue = 10; $(".threshold").each(function(elem) { if($("b",elem).innerText > threshValue) { elem.addClass("overThreshold"); } }); }); } I have the class setup correctly in CSS .overThreshold { td{font-size:72px;} th{font-size:72px;} } But no classes are being changed, whats going on? Thanks for all your help!

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  • Can't delete a mySQL table. (Error 1050)

    - by doublejosh
    I have a pesky table that will not delete and it's holding up my dev environment refresh :( I know this table exists. Example... mysql> select * from uc_order_products_qty_vw limit 10; +-----+-------------+---------+---------+---------+---------+ | nid | order_count | avg_qty | sum_qty | max_qty | min_qty | +-----+-------------+---------+---------+---------+---------+ | 105 | 1 | 1.0000 | 1 | 1 | 1 | | 110 | 5 | 1.0000 | 5 | 1 | 1 | | 111 | 1 | 1.0000 | 1 | 1 | 1 | | 113 | 5 | 1.0000 | 5 | 1 | 1 | | 114 | 1 | 1.0000 | 1 | 1 | 1 | | 115 | 1 | 1.0000 | 1 | 1 | 1 | | 117 | 2 | 1.0000 | 2 | 1 | 1 | | 119 | 3 | 1.3333 | 4 | 2 | 1 | | 190 | 5 | 1.0000 | 5 | 1 | 1 | | 199 | 2 | 1.0000 | 2 | 1 | 1 | +-----+-------------+---------+---------+---------+---------+ 10 rows in set (0.00 sec) However when I try to drop it... mysql> DROP TABLE IF EXISTS uc_order_products_qty_vw; Query OK, 0 rows affected, 1 warning (0.00 sec) It doesn't work, the table is still there, and the warning says this... mysql> show warnings limit 1; +-------+------+------------------------------------------+ | Level | Code | Message | +-------+------+------------------------------------------+ | Note | 1051 | Unknown table 'uc_order_products_qty_vw' | +-------+------+------------------------------------------+ 1 row in set (0.00 sec) Feeling pretty dumbfounded.

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  • Global Error Handling for Web Services

    - by jusaskin
    I have a web project consisting of only web services. I need a global way of handling errors on the server so I can send emails, log in event log, etc. Global.asax doesn't work according to MSDN. How should I go about this? I have tried creating a soapExtension, but it is never hit.

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  • Possible to change function name in definition?

    - by Bird Jaguar IV
    I tried several ways to change the function name in the definition, but they failed. >>> def f(): pass >>> f.__name__ 'f' >>> def f(): f.__name__ = 'new name' >>> f.__name__ 'f' >>> def f(): self.__name__ = 'new name' >>> f.__name__ 'f' But I can change the name attribute after defining it. >>> def f(): pass >>> f.__name__ = 'new name' >>> f.__name__ 'new name' Any way to change/set it in the definition (other than using a decorator)?

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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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  • How to Avoid Server Error 414 for Very Long QueryString Values

    - by Registered User
    I had a project that required posting a 2.5 million character QueryString to a web page. The server itself only parsed URI's that were 5,400 characters or less. After trying several different sets of code for WebRequest/WebResponse, WebClient, and Sockets, I finally found the following code that solved my problem: HttpWebRequest webReq; HttpWebResponse webResp = null; string Response = ""; Stream reqStream = null; webReq = (HttpWebRequest)WebRequest.Create(strURL); Byte[] bytes = Encoding.UTF8.GetBytes("xml_doc=" + HttpUtility.UrlEncode(strQueryString)); webReq.ContentType = "application/x-www-form-urlencoded"; webReq.Method = "POST"; webReq.ContentLength = bytes.Length; reqStream = webReq.GetRequestStream(); reqStream.Write(bytes, 0, bytes.Length); reqStream.Close(); webResp = (HttpWebResponse)webReq.GetResponse(); if (webResp.StatusCode == HttpStatusCode.OK) { StreamReader loResponseStream = new StreamReader(webResp.GetResponseStream(), Encoding.UTF8); Response = loResponseStream.ReadToEnd(); } webResp.Close(); reqStream = null; webResp = null; webReq = null;

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  • Do you bother to write a pretty error page?

    - by Chacha102
    So, everyone is really used to the errors that PHP gives you. They look kind of like this: Fatal error: Allowed memory size of 8388608 bytes exhausted (tried to allocate 2 bytes) in /path/to/file(437) on line 21 My question is, do you put in the time to make your error pages more useful? I find that I am able to debug a lot faster using my own error page: I find this to be a lot better than the PHP errors because it gives me a stack trace, the usual error message, along with the actual location of the error, and more. Also, are there any downsides from creating your own development error pages. Obviously you wouldn't want to have a user see this page, but what about during development?

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  • Big Oh Notation - formal definition.

    - by aloh
    I'm reading a textbook right now for my Java III class. We're reading about Big-Oh and I'm a little confused by its formal definition. Formal Definition: "A function f(n) is of order at most g(n) - that is, f(n) = O(g(n)) - if a positive real number c and positive integer N exist such that f(n) <= c g(n) for all n = N. That is, c g(n) is an upper bound on f(n) when n is sufficiently large." Ok, that makes sense. But hold on, keep reading...the book gave me this example: "In segment 9.14, we said that an algorithm that uses 5n + 3 operations is O(n). We now can show that 5n + 3 = O(n) by using the formal definition of Big Oh. When n = 3, 5n + 3 <= 5n + n = 6n. Thus, if we let f(n) = 5n + 3, g(n) = n, c = 6, N = 3, we have shown that f(n) <= 6 g(n) for n = 3, or 5n + 3 = O(n). That is, if an algorithm requires time directly proportional to 5n + 3, it is O(n)." Ok, this kind of makes sense to me. They're saying that if n = 3 or greater, 5n + 3 takes less time than if n was less than 3 - thus 5n + n = 6n - right? Makes sense, since if n was 2, 5n + 3 = 13 while 6n = 12 but when n is 3 or greater 5n + 3 will always be less than or equal to 6n. Here's where I get confused. They give me another example: Example 2: "Let's show that 4n^2 + 50n - 10 = O(n^2). It is easy to see that: 4n^2 + 50n - 10 <= 4n^2 + 50n for any n. Since 50n <= 50n^2 for n = 50, 4n^2 + 50n - 10 <= 4n^2 + 50n^2 = 54n^2 for n = 50. Thus, with c = 54 and N = 50, we have shown that 4n^2 + 50n - 10 = O(n^2)." This statement doesn't make sense: 50n <= 50n^2 for n = 50. Isn't any n going to make the 50n less than 50n^2? Not just greater than or equal to 50? Why did they even mention that 50n <= 50n^2? What does that have to do with the problem? Also, 4n^2 + 50n - 10 <= 4n^2 + 50n^2 = 54n^2 for n = 50 is going to be true no matter what n is. And how in the world does picking numbers show that f(n) = O(g(n))? Please help me understand! :(

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