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• Some general C questions.

  - by b-gen-jack-o-neill

  Hello. I am trying to fully understand the process pro writing code in some language to execution by OS. In my case, the language would be C and the OS would be Windows. So far, I read many different articles, but I am not sure, whether I understand the process right, and I would like to ask you if you know some good articles on some subjects I couldn´t find. So, what I think I know about C (and basically other languages): C compiler itself handles only data types, basic math operations, pointers operations, and work with functions. By work with functions I mean how to pass argument to it, and how to get output from function. During compilation, function call is replaced by passing arguments to stack, and than if function is not inline, its call is replaced by some symbol for linker. Linker than find the function definition, and replace the symbol to jump adress to that function (and of course than jump back to program). If the above is generally true and I get it right, where to final .exe file actually linker saves the functions? After the main() function? And what creates the .exe header? Compiler or Linker? Now, additional capabilities of C, today known as C standart library is set of functions and the declarations of them, that other programmers wrote to extend and simplify use of C language. But these functions like printf() were (or could be?) written in different language, or assembler. And there comes my next question, can be, for example printf() function be written in pure C without use of assembler? I know this is quite big question, but I just mostly want to know, wheather I am right or not. And trust me, I read a lots of articles on the web, and I would not ask you, If I could find these infromation together on one place, in one article. Insted I must piece by piece gather informations, so I am not sure if I am right. Thanks.

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• Can anyone tell me about a jQuery modal dialog box library that doesn't suck

  - by Ritesh M Nayak

  jQuery based modal dialog boxes are great as long as you do as much as the example tells you to. I need a jQuery based modal dialog box library that has to have the following characteristics: It should be fast, something like the add and link dialog on StackOverflow. Most libraries take an eternity to load the dialog with its fancy effects and stuff. I want to call it using a script. Show a hidden div or a span element inline. MOst of the libraries talk filling an anchor with rel, class and href=#hiddenDiv sort of things. I need to be able to what I want without adding unnecessary attributes to my anchor. Something like this function showDialog(values) { processToChangeDom(values); changeDivTobeDisplayed(); modalDialog.show(); } It should reflect changes I make to the DOM in the hidden Div. I used facebox and found out that it makes a copy of the hidden div and changes to the DOM doesn't reflect on the modal window. I need to be able call the close modal div using javascript and also attach beforeOpen and afterClose handlers to the action. Does anyone have any suggestions? I have already tried facebox, simplemodal and a whole range of libraries, most of them don't support one or the other of these functions I described above.

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• jQuery/Ajax with Zend Framework

  - by Nathan

  I've been tinkering around with Zend-Framework and Jquery for a month or so, and finally started tinkering with them together using ZendX_JQuery. It seems I've ran into something that at first seemed it should be simple, So maybe I'm just missing something here. I have a view along the lines of: $this->ajaxLink( $this->escape($var->title), $this->baseUrl() . "/another/action", array('update' => '#domain' . $var->id , 'complete' => '$("#domain' . $var->id .'").toggle("slow");')); echo '<div id="domain"' . $var->id . '" style="display:none;" ></div>'; Which works correctly, when the link displayed by the code above is clicked it loads the contents returned from /another/action into the domain"id" div. The problem occurs when the view loaded by the above contains an ajaxLink() the ajax link stops working. This can be fixed by adding an option to the ajaxLink() array "inline" = true but what if I need other JQuery views helpers to work when loaded into the page via ajax i.e. dialogContainer() I guess I could simply be asking how to control where zendx jquery helper puts java script. by default it is trying to put all statments in the <head> section in a single <script> tag. I need away around that for views displayed from an ajax call. Does Dojo try and force all php rendered javascript/ajax into the head also? Thanks.

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• emberjs on symfony2 dev enviroment dont work propertly

  - by rkmax

  I've builded a app with symfony2 the app expose an REST Api. now i build a simple client for consuming app.coffee - app.js App = Em.Application.create ready: -> @.entradas.load() Entrada: Em.Object.extend() entradas: Em.ArrayController.create content: [] load: -> url = 'http://localhost/api/1/entrada' me = @ $.ajax( url: url, method: 'GET', success: (data) -> me.set('content', []) for entrada in data.data.objects me.pushObject DBPlus.Entrada.create(entrada) ) MyBundle:Home:index.html.twig <script type="text/x-handlebars" src="{{ asset('js/templates/entradas.hbs') }}"></script> <script src="{{ asset('js/libs/jquery-1.7.2.min.js') }}"></script> <script src="{{ asset('js/libs/handlebars-1.0.0.beta.6.js') }}"></script> <script src="{{ asset('js/libs/ember-1.0.pre.min.js') }}"></script> <script src="{{ asset('js/app.js') }}"></script> the problem here is when i run on dev enviroment and link the template like <script type="text/x-handlebars" src="{{...}}"> the app dont work, nothing show but works fine over prod enviroment. he only way that works on dev enviroment is inline template MyBundle:Home:index.html.twig <script type="text/x-handlebars"> {% raw %} <ul class="entradas"> {{#each App.entradas}} <li class="entrada">{{nombre}}</li> {{/each}} </ul> {% endraw %} </script> can explain why this behavoir? Note: I disabled the debug profiler toolbar, and nothing

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• Compiler optimization causing the performance to slow down

  - by aJ

  I have one strange problem. I have following piece of code: template<clss index, class policy> inline int CBase<index,policy>::func(const A& test_in, int* srcPtr ,int* dstPtr) { int width = test_in.width(); int height = test_in.height(); double d = 0.0; //here is the problem for(int y = 0; y < height; y++) { //Pointer initializations //multiplication involving y //ex: int z = someBigNumber*y + someOtherBigNumber; for(int x = 0; x < width; x++) { //multiplication involving x //ex: int z = someBigNumber*x + someOtherBigNumber; if(soemCondition) { // floating point calculations } *dstPtr++ = array[*srcPtr++]; } } } The inner loop gets executed nearly 200,000 times and the entire function takes 100 ms for completion. ( profiled using AQTimer) I found an unused variable double d = 0.0; outside the outer loop and removed the same. After this change, suddenly the method is taking 500ms for the same number of executions. ( 5 times slower). This behavior is reproducible in different machines with different processor types. (Core2, dualcore processors). I am using VC6 compiler with optimization level O2. Follwing are the other compiler options used : -MD -O2 -Z7 -GR -GX -G5 -X -GF -EHa I suspected compiler optimizations and removed the compiler optimization /O2. After that function became normal and it is taking 100ms as old code. Could anyone throw some light on this strange behavior? Why compiler optimization should slow down performance when I remove unused variable ? Note: The assembly code (before and after the change) looked same.

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• Problems with jQuery load and getJSON only when using Chrome

  - by leftend

  I'm having an issue with two jQuery calls. The first is a "load" that retrieves HTML and displays it on the page (it does include some Javascript and CSS in the code that is returned). The second is a "getJSON" that returns JSON - the JSON returned is valid. Everything works fine in every other browser I've tried - except Chrome for either Windows or Mac. The page in question is here: http://urbanistguide.com/category/Contemporary.aspx When you click on a Restaurant name in IE/FF, you should see that item expand with more info - and a map displayed to the right. However, if you do this in Chrome all you get is the JSON data printed to the screen. The first problem spot is when the "load" function is called here: var fulllisting = top.find(".listingfull"); fulllisting.load(href2, function() { fulllisting.append("<div style=\"width:99%;margin-top:10px;text-align:right;\"><a href=\"#\" class=\"" + obj.attr("id") + "\">X</a>"); itemId = fulllisting.find("a.listinglink").attr("id"); ... In the above code, the callback function doesn't seem to get invoked. The second problem spot is when the "getJSON" function is called: $.getJSON(href, function(data) { if (data.error.length > 0) { //display error message } else { ... } In this case - it just seems to follow the link instead of performing the callback... and yes, I am doing a "return false;" at the end of all of this to prevent the link from executing. All of the rest of the code is inline on that page if you want to view the source code. Any ideas?? Thanks

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• Rendering LaTeX on third-party websites

  - by A. Rex

  There are some sites on the web that render LaTeX into some more readable form, such as Wikipedia, some Wordpress blogs, and MathOverflow. They may use images, MathML, jsMath, or something like that. There are other sites on the web where LaTeX appears inline and is not rendered, such as the arXiv, various math forums, or my email. In fact, it is quite common to see an arXiv paper's abstract with raw LaTeX in it, e.g. this paper. Is there a plugin available for Firefox, or would it be possible to write one, that renders LaTeX within pages that do not provide a rendering mechanism themselves? Some notes: It may be impossible to render some of the code, because authors often copy-paste code directly from their source TeX files, which may contain things like "\cite{foo}" or undefined commands. These should be left alone. This question is a repost of a question from MathOverflow that was closed for not being related to math. I program a lot, but Javascript is not my specialty, so comments along the lines of "look at this library" are not particularly helpful to me (but may be to others).

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• Weak event handler model for use with lambdas

  - by Benjol

  OK, so this is more of an answer than a question, but after asking this question, and pulling together the various bits from Dustin Campbell, Egor, and also one last tip from the 'IObservable/Rx/Reactive framework', I think I've worked out a workable solution for this particular problem. It may be completely superseded by IObservable/Rx/Reactive framework, but only experience will show that. I've deliberately created a new question, to give me space to explain how I got to this solution, as it may not be immediately obvious. There are many related questions, most telling you you can't use inline lambdas if you want to be able to detach them later: Weak events in .Net? Unhooking events with lambdas in C# Can using lambdas as event handlers cause a memory leak? How to unsubscribe from an event which uses a lambda expression? Unsubscribe anonymous method in C# And it is true that if YOU want to be able to detach them later, you need to keep a reference to your lambda. However, if you just want the event handler to detach itself when your subscriber falls out of scope, this answer is for you.

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• rails best practices where to place unobtrusive javascript

  - by nathanvda

  Hi there, my rails applications (all 2.3.5) use a total mix of inline javascript, rjs, prototype and jquery. Let's call it learning or growing pains. Lately i have been more and more infatuated with unobtrusive javascript. It makes your html clean, in the same way css cleaned it up. But most examples i have seen are small examples, and they put all javascript(jquery) inside application.js Now i have a pretty big application, and i am thinking up ways to structure my js. I like somehow that my script is still close to the view, so i am thinking something like orders.html.erb orders.js where orders.js contains the unobtrusive javascript specific to that view. But maybe that's just me being too conservative :) I have read some posts by Yehuda Katz about this very problem here and here, where he tackles this problem. It will go through your js-files and only load those relevant to your view. But alas i can't find a current implementation. So my questions: how do you best structure your unobtrusive javascript; manage your code, how do you make sure that it is obvious from the html what something is supposed to do. I guess good class names go a long way :) how do you arrange your files, load them all in? just a few? do you use content_for :script or javascript_include_tag in your view to load the relevant scripts. Or ... ? do you write very generic functions (like a delete), with parameters (add extra attributes?), or do you write very specific functions (DRY?). I know in Rails 3 there is a standard set, and everything is unobtrusive there. But how to start in Rails 2.3.5? In short: what are the best practices for doing unobtrusive javascript in rails? :)

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• Java invokeAndWait of C# Action Delegate

  - by ikurtz

  the issue i mentioned in this post is actually happening because of cross threading GUI issues (i hope). could you help me with Java version of action delegate please? in C# it is done as this inline: this.Invoke(new Action(delegate() {...})); how is this achived in Java? thank you. public class processChatMessage implements Observer { public void update(Observable o, Object obj) { System.out.println("class class class" + obj.getClass()); if (obj instanceof String){ String msg = (String)obj; formatChatHeader(chatHeader.Away, msg); jlStatusBar.setText("Message Received"); // Show chat form setVisibility(); } } } processChatMessage is invoked by a separate thread triggered by receiving new data from a remote node. and i think the error is being produced as it trying to update GUI controls. do you think this is the reason? i ask because im new to Java and C#, but this is what is going on i think. SOLUTION: public class processChatMessage implements Observer { public void update(Observable o, Object obj) { if (obj instanceof String){ final String msg = (String)obj; try { SwingUtilities.invokeAndWait(new Runnable( ) { public void run( ) { formatChatHeader(chatHeader.Away, msg); jlStatusBar.setText("Message Received"); setVisibility(); } }); } catch (InterruptedException e){ } catch (InvocationTargetException e){ } } } }

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• Generic allocator class without variadic templates?

  - by rainer

  I am trying to write a generic allocator class that does not really release an object's memory when it is free()'d but holds it in a queue and returns a previously allocated object if a new one is requested. Now, what I can't wrap my head around is how to pass arguments to the object's constructor when using my allocator (at least without resorting to variadic templates, that is). The alloc() function i came up with looks like this: template <typename... T> inline T *alloc(const &T... args) { T *p; if (_free.empty()) { p = new T(args...); } else { p = _free.front(); _free.pop(); // to call the ctor of T, we need to first call its DTor p->~T(); p = new( p ) T(args...); } return p; } Still, I need the code to be compatible with today's C++ (and older versions of GCC that do not support variadic templates). Is there any other way to go about passing an arbitrary amount of arguments to the objects constructor?

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• CSS sliding-door buttons center alignment

  - by rochal

  Hi guys, I need help to align CSS buttons. I tried many different variations and I just cannot center my button the way I want. Firstly, have a look at this url: http://www.front-end-developer.net/cssbuttons/example.htm I'm using 2 images to form a button (this could be done on 1 image, but in this case we've got two). Everything works as expected as long as we apply float:left or float:right to the parent div element, to 'limit' width of the div and close it as soon as the content of the div ends. You can remove float:left from the button to see what I mean. But what about center positioned buttons? I cannot add float:left/right because I want align it in the middle. In theory, I could set { width:XXpx; margin:0 auto; } And I will get what you can see on this picture: But I don't know the length of the text inside. Having different translations my button can be very short, or 5 times that long. I also tried to use <span> instead of <div>, but unfortunately nested inline elements don't respect their padding correctly... And yes, I must use <a> inside, so buttons can be accessed by web crawlers. I'm really stuck on this one.

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• onComplete for Ajax.Request sometimes does not hide the load animation in Prototype

  - by TenJack

  I have a Ajax.Request in which I use onLoading and onComplete to show and hide a load animation gif. The problem is that every 10 clicks or so, the load animation fails to hide and just stays there animating even though the ajax request has returned successfully. I have a number of div elements that each has its own respective load animation and an onclick with the Ajax.Request that looks like this: <div id="word_block_<%= word_obj.word %>" class="word_block" > <%= image_tag("ajax-loader_word_block.gif", :id => "load_animation_#{word_obj.word}", :style => 'display:none') %> <a href="#" onclick="new Ajax.Request('/test/ajax_load', {asynchronous:true, evalScripts:true, onLoading:function() { Element.show('load_animation_<%= word_obj.word %>')}, onComplete:function(){ Element.hide('load_animation_<%= word_obj.word %>')}}); return false;">Click Here</a> </div> Does it look like anything could be wrong with this? Maybe I should try removing the inline onclick and add an onclick programmatically with javascript? I really have no idea why this keeps happening. I am using the prototype library with ruby on rails.

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• Problem calling std::max

  - by Eric

  I compiled my bison-generated files in Visual Studio and got these errors: ...\position.hh(83): error C2589: '(' : illegal token on right side of '::' ...\position.hh(83): error C2059: syntax error : '::' ...\position.hh(83): error C2589: '(' : illegal token on right side of '::' ...\position.hh(83): error C2059: syntax error : '::' The corresponding code is: inline void columns (int count = 1) { column = std::max (1u, column + count); } I think the problem is with std::max; if I change std::max to equivalent code then there is no problem anymore, but is there a better solution instead of changing the generated code? Here is the bison file I wrote: // // bison.yy // %skeleton "lalr1.cc" %require "2.4.2" %defines %define parser_class_name "cmd_parser" %locations %debug %error-verbose %code requires { class ParserDriver; } %parse-param { ParserDriver& driver } %lex-param { ParserDriver& driver } %union { struct ast *a; double d; struct symbol *s; struct symlist *sl; int fn; } %code { #include "helper_func.h" #include "ParserDriver.h" std::string error_msg = ""; } %token <d> NUMBER %token <s> NAME %token <fn> FUNC %token EOL %token IF THEN ELSE WHILE DO LET %token SYM_TABLE_OVERFLOW %token UNKNOWN_CHARACTER %nonassoc <fn> CMP %right '=' %left '+' '-' %left '*' '/' %nonassoc '|' UMINUS %type <a> exp stmt list explist %type <sl> symlist %{ extern int yylex(yy::cmd_parser::semantic_type *yylval, yy::cmd_parser::location_type* yylloc); %} %start calclist %% ... grammar rules ...

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• ActionMailer sent with body unavailable in view

  - by yelvert

  So ive got a ActionMailer mailer class ReportMailer < ActionMailer::Base def notify_doctor_of_updated_document(document) recipients document.user.email_id from "(removed for privacy)" subject "Document #{document.document_number} has been updated and saved as #{document.status}" sent_on Time.now body :document => document end end and the view is Document <%= @document.class %> but when running >> d = Document.last => #<Document id: "fff52d70-7ba2-11de-9b70-001ec9e252ed", document_number: "ABCD1234", procedures_count: 0, user_id: "630", created_at: "2009-07-28 18:18:07", updated_at: "2009-08-30 20:59:41", active: false, facility_id: 94157, status: "incomplete", staff_id: nil, transcriptionist_id: nil, job_length: nil, work_type: nil, transcription_date: nil, non_trans_edit_date: nil, pervasync_flag: true, old_id: nil> >> ReportMailer.deliver_notify_doctor_of_updated_document(d) => #<TMail::Mail port=#<TMail::StringPort:id=0x8185326c> bodyport=#<TMail::StringPort:id=0x8184d6b4>> from the console this is printed in the log Sent mail to (removed for privacy) Date: Tue, 11 May 2010 20:45:14 -0500 From: (removed for privacy) To: (removed for privacy) Subject: Document ABCD1234 has been updated and saved as incomplete Mime-Version: 1.0 Content-Type: multipart/alternative; boundary=mimepart_4bea082ab4ae8_aa4800b81ac13f5 --mimepart_4bea082ab4ae8_aa4800b81ac13f5 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: Quoted-printable Content-Disposition: inline Document NilClass= --mimepart_4bea082ab4ae8_aa4800b81ac13f5--

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• HTML onmouseover doesn't work to show up text

  - by REALFREE

  I'm trying to show some information on a picture when onmouseover/onmouseout event occurs. What I want to achieve is something like this website does on top selling. My code is like this: <div class="container" onmouseover="$('#info').css('display','block');" onmouseout="$('#info').css('display','none');"> <img src=..."> <div id="info" style="display:none"> ... some text ... </div> </div> So div info block is initially hidden, but when mouse is on a picture I want the information to appear on corresponding picture (with tint background on the image to see text well). But somewhat it doesn't work. I appreciate any suggestion how to approach this problem. Edit: more precisely, the reason why I choose to use inline because I need to show/hide text corresponding to the image(contain unique div id)that user put their mouse on/out. That means I have many div container and each container has unique div id.

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• Logging with Quartz.net

  - by Young Ninja

  I will shamelessly state that I have little experience with Log4Net... I only just installed it, but it won't capture log events from Quartz.net, which is a scheduling library. Apparently Quartz.net uses Commons Logging and that needs to be configured to point to my Log4Net settings. Unfortunately, it doesn't seem to work. Help is appreciated: <configSections> ... <section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net" /> <section name="quartz" type="System.Configuration.NameValueSectionHandler, System, Version=1.0.5000.0,Culture=neutral, PublicKeyToken=b77a5c561934e089" /> <section name="commonLogging" type="Common.Logging.ConfigurationSectionHandler, Common.Logging"/> </configSections> <!-- Log4net error handling --> <log4net> <appender name="LogFileAppender" type="log4net.Appender.FileAppender"> <param name="File" value="Admin/LabSlice.log" /> <param name="AppendToFile" value="true" /> <layout type="log4net.Layout.PatternLayout"> <param name="ConversionPattern" value="%d [%t] %-5p %c %m%n" /> </layout> </appender> <root> <level value="INFO" /> <appender-ref ref="LogFileAppender" /> </root> </log4net> <!-- Commons logging (Quart.net logs) --> <commonLogging> <logging> <factoryAdapter type="Common.Logging.Log4Net.Log4NetLoggerFactoryAdapter, Common.Logging.Log4net"> <arg key="configType" value="INLINE" /> </factoryAdapter> </logging> </commonLogging>

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• Can you force a crash if a write occurs to a given memory location with finer than page granularity?

  - by Joseph Garvin

  I'm writing a program that for performance reasons uses shared memory (alternatives have been evaluated, and they are not fast enough for my task, so suggestions to not use it will be downvoted). In the shared memory region I am writing many structs of a fixed size. There is one program responsible for writing the structs into shared memory, and many clients that read from it. However, there is one member of each struct that clients need to write to (a reference count, which they will update atomically). All of the other members should be read only to the clients. Because clients need to change that one member, they can't map the shared memory region as read only. But they shouldn't be tinkering with the other members either, and since these programs are written in C++, memory corruption is possible. Ideally, it should be as difficult as possible for one client to crash another. I'm only worried about buggy clients, not malicious ones, so imperfect solutions are allowed. I can try to stop clients from overwriting by declaring the members in the header they use as const, but that won't prevent memory corruption (buffer overflows, bad casts, etc.) from overwriting. I can insert canaries, but then I have to constantly pay the cost of checking them. Instead of storing the reference count member directly, I could store a pointer to the actual data in a separate mapped write only page, while keeping the structs in read only mapped pages. This will work, the OS will force my application to crash if I try to write to the pointed to data, but indirect storage can be undesirable when trying to write lock free algorithms, because needing to follow another level of indirection can change whether something can be done atomically. Is there any way to mark smaller areas of memory such that writing them will cause your app to blow up? Some platforms have hardware watchpoints, and maybe I could activate one of those with inline assembly, but I'd be limited to only 4 at a time on 32-bit x86 and each one could only cover part of the struct because they're limited to 4 bytes. It'd also make my program painful to debug ;)

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• GWT: Change padding of tree rows?

  - by Epaga

  A GWT tree looks roughly like this: <div class="gwt-Tree"> <div style="padding-top: 3px; padding-right: 3px; padding-bottom: 3px; margin-left: 0px; padding-left: 23px;"> <div style="display:inline;" class="gwt-TreeItem"> <table> ... </table> </div> </div> <div ...> </div> ... </div> My question is: how should I change the padding of the individual tree rows? I suppose I could do something along the lines of setting CSS rules for .gwt-Tree > div but that seems hacky. Is there a more elegant way?

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• Can't place a breakpoint in asp.net master page file

  - by Tony_Henrich

  I have an MVC web application. I get an "Object reference not set to an instance of an object" error in line 16 below. It's a master page file. When I try to place a breakpoint in that line or anywhere in the file, I get a "this is not a valid location for a breakpoint" error. I have clicked on every line and I can't place a single breakpoint. I do have lines which have code only. How do I place a breakpoint in this file? Note: I can place breakpoints in code files. In some other aspx files, I can place a breakpoint in some code lines and some not. Does the inline code have to be in a special format to place a breakpoint? Using VS 2010 in Windows 7 64bit. Code: Line 14: <div id="<%= Model.PageWidth %>" class="<%= Model.PageTemplate %>"> Line 15: <div id="hd"> Line 16: <h1><a href="/"><%= Model.Workspace.Title %></a></h1> Line 17: <h2><%= Model.Workspace.Subtitle %></h2> Line 18: </div>

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• Javascript working in chrome but not in explorer

  - by Greg

  Hello, I am writing this code in html: <!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> <script language="javascript" type="text/javascript"> function setVisibility(id, visibility) { document.getElementById(id).style.display = visibility; } </script> <title>Welcome to the memory game</title> </head> <body> <h1>Welcome to the memory game!</h1> <input type="button" name="type" value='Show Layer' onclick="setVisibility('sub3', 'inline');"/> <input type="button" name="type" value='Hide Layer' onclick="setVisibility('sub3', 'none');"/> <div id="sub3">Message Box</div> </body> </html> It suppose to make the "div" disappear and reapper, but it works in chrome and not in explorer. Anyone has any idea how can I make it work in explorer (I tried allowing blocked content when that message about activeX appears in explorer)? Thanks, Greg

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• How to access a method on a generic datacontext which is only created at runtime

  - by Jeremy Holt

  I'm creating my generic DataContext using only the connectionString in the ctor. I have no issues in retrieving the table using DataContext.GetTable(). However, I need to also be able to retrieve entities of inline table functions. The dbml designer generates public IQueryable<testFunctionResult> testFunction() { return this.CreateMethodCallQuery<testFunctionResult>(this, ((MethodInfo)(MethodInfo.GetCurrentMethod()))); } The question is how do I get the MethodInfo.GetCurrentMethod() when the DataContext has no method called "testFunction", i.e.typeof(DataContext).GetMethod("testFunction") returns null? What I'm trying to achieve is something like: public class UnitofWork<T> { public UnitofWork(string connectionString) { this.DataContext = new DataContext(connectionString); } public UnitofWork(IQueryable<T> tableEntity) { _tableEntity = tableEntity; } public IQueryable<T> TableEntity { get { if (DataContext == null) return _tableEntity; var metaType = DataContext.Mapping.GetMetaType(typeof (T)); if (metaType.IsEntity) _tableEntity = DataContext.GetTable<T>(); else { var s = typeof(T).Name; string methodName = s.Substring(0, s.IndexOf("Result")) + "()"; // the designer automatically affixes "Result" to the type name // Make a method from methodName // _tableEntity = DataContext.CreateMethodCallQuery(DataContext, method, new object[]{}); } return _tableEntity; } set { _tableEntity = value; } } ) Thanks in advance for any insight Jeremy

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• Why does Email::MIME split up my attachment?

  - by sid_com

  Why does the attachment(ca. 110KiB) split up in 10 parts(ca. 11KiB) when I send it with this script using Email::MIME? #!/usr/bin/env perl use warnings; use strict; use Email::Sender::Transport::SMTP::TLS; my $mailer = Email::Sender::Transport::SMTP::TLS->new( host => 'smtp.my.host', port => 587, username => 'username', password => 'password', ); use Email::MIME::Creator; use IO::All; my @parts = ( Email::MIME->create( attributes => { content_type => 'text/plain', disposition => 'inline', encoding => 'quoted-printable', charset => 'UTF-8', }, body => "Hello there!\n\nHow are you?", ), Email::MIME->create( attributes => { filename => "test.jpg", content_type => "image/jpeg", disposition => 'attachment', encoding => "base64", name => "test.jpg", }, body => io( "test.jpg" )->all, ), ); my $email = Email::MIME->create( header => [ From => 'my@address', To => 'your@address', Subject => 'subject', ], parts => [ @parts ], ); eval { $mailer->send( $email, { from => 'my@address', to => [ 'your@address' ], } ); }; die "Error sending email: $@" if $@;

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• submit remote form with prototype

  - by badnaam

  I have a remote form like this and a checkbox in it. When I select or deselect the checkbox I would like to 1 - set the value of a hidden field 2 - ajax submit this form to its designated url. I tried $('search_form').onsubmit(), but I get an error saying onsubmit is not a function. Using prototype. Whats the best way to do this? <form onsubmit="new Ajax.Request('/searches/search_set?stype=1', {asynchronous:true, evalScripts:true, parameters:Form.serialize(this)}); return false;" method="post" id="new_search" class="new_search" action="/searches/search_set?stype=1"><div style="margin: 0pt; padding: 0pt; display: inline;"><input type="hidden" value="3TWSyMsZXI0nltz7zHAxuj1KX=" name="authenticity_token"></div> <a onclick="setSubmit(this);" href="#" class="submit-link-button fg-button ui-state-default fg-button-icon-left ui-corner-all" id="search_submit"><span class="ui-icon ui-icon-search"></span>'Search'</a> </div> <input type="checkbox" value="Energy" onclick="refreshResults(this);" name="search[conditions][article_tag][0]" id="search_conditions_article_tag_0">

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• jQuery ui Accordion degrades in IE6 or IE7, but is working in IE8

  - by cfree

  There are two accordions on my page, with custom accordion CSS in another file, differentiated by class and ID names so as not to conflict with each other. The accordions don't show up at all, they just degrade to showing all the content at once, as if all the accordion styling is gone. The accordions are both called around the middle of the page, and there's no difference if they are loaded with $(document).ready. What should I check for in the CSS files? There are no inline-block uses. I am using jQuery 1.3.2.min and jQuery ui 1.7.2, so I'm assuming the autoHeight set to false won't make a difference... This is being used inside a Symfony-based site. Works fine in FF, IE8, Chrome. Not so much in IE6, IE7/IE8 compatibility mode. $(function() { $("#accordion").accordion({ active: false, autoHeight: false, collapsible: true, icons: { 'header': 'ui-icon-carat-1-e', 'headerSelected': 'ui-icon-carat-1-s' }, }); $(".links").accordion({ active: false, autoHeight: false, collapsible: true }); });

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