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• Qt layout problem.

  - by Lukasz Lew

  I have a following Qt code: QVBoxLayout* box = new QVBoxLayout; label = new QLabel(); // will be set later dynamically box->addWidget (label); Text in label will be set later. The problem is that when label resizes, it resizes QVBoxLayout, and it resizes other neighboring widgets. I don't want to make a label or layout fixed width. Because I want them to resize with a whole window. Is it possible to tell a widget to take all the place that it has in a layout, but not more?

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• PrivateFontCollection fails on appharbor

  - by grennis

  I am trying to load a custom font (ttf file) and draw into an image with the Graphics object. This code runs fine locally: PrivateFontCollection fonts = new PrivateFontCollection(); string path = context.Server.MapPath("~/App_Data/Futura LT Bold.ttf"); if (!System.IO.File.Exists(path)) { throw new InvalidOperationException("Font file is not deployed: " + path); } fonts.AddFontFile(path); However when run on appharbor, the call to AddFontFile fails with the exception: System.ArgumentException: Font 'Futura LT Book' does not support style 'Regular'. at System.Drawing.Font.CreateNativeFont() at System.Drawing.Font.Initialize(FontFamily family, Single emSize, FontStyle style, GraphicsUnit unit, Byte gdiCharSet, Boolean gdiVerticalFont) at System.Drawing.Font..ctor(FontFamily family, Single emSize) at LumenboxWeb.Controllers.GalleryController.FontTest() in d:\temp\h5oqslma.udd\input\src\LumenboxWeb\Controllers\GalleryController.cs:line 59 at lambda_method(Closure , ControllerBase , Object[] ) at System.Web.Mvc.ActionMethodDispatcher.Execute(ControllerBase controller, Object[] parameters) at System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters) I have tried different fonts, and they all work locally, but none work on appharbor. Is it possible to load fonts dynamically on appharbor?

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• After append() how to bind a click event to just added element

  - by Pentium10

  I have this code $(".delete2").click(function() { $('#load2').fadeIn(); } I have dynamically added item via this return addSubcategory = function(){ sucategorynameval = $("#sucategoryname").val(); categoryId = $("#addcategoryid").val(); $.get("process-add-subcat.php", { "action": "add_subcategory", "sucategoryname": sucategorynameval, "categoryId":categoryId }, function(data){ //$("#main-cat-"+categoryId).load(location.href+"&pageExclusive=1 #main-cat-"+categoryId+">*",""); $("#main-cat-"+categoryId).append(data); $("#addcategoryid").val(''); $("#sucategoryname").val(''); }); The returned data contains delete2 classed item. How do I apply the click event to the newly added item?

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• how to access a firefox extension variable from the current document/window

  - by bosky101

  my firefox extension has an object myExt . myExt = { request: function(){ //makes request to server}, callback: function(json) { //do something with this } }; From a dynamically added script element, I make a call to a server that returns json, i want the json to be sent to myExt.callback that exists within my extension's js code. //from my extension, i add a script element myExt.request(); //from server i get the following response myExt.callback ( {"some":"json"}) ; //but the window doesnt find a reference to myExt how do i make a reference to myExt variable from the webpage ?

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• How to get an array of all controllers in a Codeigniter project ?

  - by ashmckenzie

  I'd like to obtain a list of all controllers in a Codeiginiter project so I can easily loop through each of them and add defined routes. I can't seem to find a method that will give me what I'm after ? Here is the code snippet from the routes.php file where I would like to access the array: - // I'd like $controllers to be dynamically populated by a method // $controllers = array('pages', 'users'); // Loop through each controller and add controller/action routes // foreach ($controllers as $controller) { $route[$controller] = $controller . '/index'; $route[$controller . '/(.+)'] = $controller . '/$1'; } // Any URL that doesn't have a / in it should be tried as an action against // the pages controller // $route['([^\/]+)$'] = 'pages/$1';

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• How do I implement jQuery image cycle loops on rollover for multiple thumbnail sets on a page?

  - by Kendrick Ledet

  Here is the Javascript I currently have <script type="text/javascript"> $(function() { $('.slideshow').hover( function() { $('.slides').cycle('resume'); }, function() { $('.slides').cycle('pause'); } ); $('.slides').cycle({ fx: 'fade', speed: .3, timeout: 280, next: '#next', prev: '#prev' }).cycle("pause"); }); </script> It works; but the thing is it works for all thumbnail sets on the page, and whenever I mouseover on one set of images, every other set of images loops as well. I do see that this is because I'm targeting classes, but my jQuery experience is quite limited so I have no idea how to only target a single instance of each class without effecting the others, and I can't go in and hardcode id's because my thumbnails and amount of videos on each page are determined dynamically via this Django template. http://pastebin.com/nf42bSAx I would greatly appreciate any help, as this is essential for my project (open source media platform). Thank you.

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• problme with javascript map/object

  - by akshay

  I am using javascript map to store keys and values.Later on I check if specified key is present in map or not, but it sometimes gives correct result but sometimes it dont.I tried to print the map using console.log(mapname), it shows all keys, but i i try to check if some specified key is presnt sometimes it gives wrong answer. Am using following code: //following code is called n times in loop with different/same vales of x myMap : new Object(); var key = x ; //populated dynamically actually myMap[key] ="dummyval"; if(myIdMap[document.getElementById("abc").value.trim()]!=null) alert('present' ); else alert('not present'); What can be the possible problem?

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• 'array bound is not an integer constant' when defining size of array in class, using an element of a const array

  - by user574733

  #ifndef QWERT_H #define QWERT_H const int x [] = {1, 2,}; const int z = 3; #endif #include <iostream> #include "qwert.h" class Class { int y [x[0]]; //error:array bound is not an integer constant int g [z]; //no problem }; int main () { int y [x[0]]; //no problem Class a_class; } I can't figure out why this doesn't work. Other people with this problem seem to be trying to dynamically allocate arrays. Any help is much appreciated.

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• Textfield being dequeued before textFieldDidEndEditing is called?

  - by Tony

  I am using a uitableview with a bunch of dynamically created custom cells each with a label and textfield similar to the settings app on the phone. Problem occurs when i have a lot of textfields say 20, the user selects the first textfield, changes its value then scrolls to the end of the table and selects the last textfield to edit. I get a EXEC_BAD_ACCESS in the textFieldDidEndEditing method because i think the textfield value is nil?? I think this might be happending because the 1st textfield that was being edited is being dequeued when the table is scrolled. Everything works fine if you select textfields that are next to each other. Any ideas how to fix this?

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• Can you use Javascript to detect a file download window created server side?

  - by Zacho

  I have a jQuery plugin I use to dynamically create and render a form on a default.aspx asp.net page, then submit it. The page it gets submitted to is a pdf.aspx page. The page builds a PDF then uses Response.Write to write the file (application/pdf) to the browser. I use the same method to render XLSX files to the browser as well. It works really great, but I need a callback or some event to tell the button when to stop spinning. This prevents the user from continuously clicking the Excel or PDF buttons. Does anyone know a way to detect the file dialog window when it was not created using javascript? I am also open to other methods of callback from the server side as well.

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• How to create custom CSS "on the fly" based on account settings in a Django site?

  - by sdolan

  So I'm writing a Django based website that allows users select a color scheme through an administration interface. I already have middleware/context processors that links the current request (based on domain) to the account. My question is how to dynamically serve the CSS with the account's custom color scheme. I see two options: Add a CSS block to the base template that overrides the styles w/variables passed in through a context processors. Use a custom URL (e.g. "/static/dynamic/css//styles.css") that gets routed to a view that grabs all the necessary values and creates the css file. I'm content with either option, but was wondering if anyone else out there has dealt with similar problems and could give some insight as to "Best Practices".

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• Stored Connection Strings per user

  - by pehaada

  In the past I've used a Singleton Pattern to load the connection string when the application starts via the global.asa file. I have a project now where each user has a unique connection string to the database. I would like to load this connection string once. The issue is that the singleton pattern will not work for me since each user has there own connection string. Basically the connection string is created dynamically. I do not want to store it is session. If anyway has a clever way of doing this in .NET let me know ?

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• SQL Server (TSQL) - Is it possible to EXEC statements in parallel?

  - by Investor5555

  SQL Server 2008 R2 Here is a simplified example: EXECUTE sp_executesql N'PRINT ''1st '' + convert(varchar, getdate(), 126) WAITFOR DELAY ''000:00:10''' EXECUTE sp_executesql N'PRINT ''2nd '' + convert(varchar, getdate(), 126)' The first statement will print the date and delay 10 seconds before proceeding. The second statement should print immediately. The way T-SQL works, the 2nd statement won't be evaluated until the first completes. If I copy and paste it to a new query window, it will execute immediately. The issue is that I have other, more complex things going on, with variables that need to be passed to both procedures. What I am trying to do is: Get a record Lock it for a period of time while it is locked, execute some other statements against this record and the table itself Perhaps there is a way to dynamically create a couple of jobs? Anyway, I am looking for a simple way to do this without having to manually PRINT statements and copy/paste to another session. Is there a way to EXEC without wait / in parallel?

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• What's the reason why core data takes care of the life-cycle of modeled properties?

  - by mystify

  The docs say that I should not release any modeled property in -dealloc. For me, that feels like violating the big memory management rules. I see a big retain in the header and no -release, because Core Data seems to do it at any other time. Is it because Core Data may drop the value of a property dynamically, at any time when needed? And what's Core Data doing when dropping an managed object? If there's no -dealloc, then how and when are the properties getting freed up?

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• Changing Dropdown based on Other Dropdown Menu

  - by Shaded

  I've seen a few questions like this, but mine is a bit more specific so I hope this isn't considered a repost. I am working on a website that is built with struts 2 and hibernate. I need to dynamically populate a drop down menu using data from a sql query based on an option selected in another drop down menu. So basically when the first option is selected I need to rehit the server and get the results from a query like SELECT column FROM table WHERE option = dropDownOption On top of that, I would really like to use ajax to only refresh the affected elements, however I'm really unfamiliar with ajax. I have jquery on this project and I found they have some ajax built in, but is this a good method for using it? any advice on this topic would be appreciated.

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• Resizing iframe height using javascript issue

  - by Camran

  I have an iframe which content is a php-file, and that php-file displays some mysql records. The more records, the larger the iframe height should get, otherwise it wont show all of the information in the iframe. Here is a code I have for dynamically setting the iframe height, from the iframes content (the php file): var x = document.body.scrollHeight; x = x + 20 + 'px'; window.parent.document.getElementById("iframe001").style.height=x; iframe001 is the iframe I am referring to above. I am adding 20px of height extra because of borders etc... Now, sometimes this resizing works, sometimes it doesn't. Does anybody know why it works sometimes. If I alert the 'x' variable, it shows different values sometimes, but most times it works. Any other ways you know of setting the iframes height from the content of the iframe? Thanks

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• Contents changed(cleared?) when access the pointer returned by std::string::c_str()

  - by justamask

  string conf()     {         vector v;         //..         v = func(); //this function returns a vector         return v[1];     }     void test()     {         const char* p = conf().c_str();         // the string object will be alive as a auto var         // so the pointer should be valid till the end of this function,right?           // ... lots of steps, but none of them would access the pointer p         // when access p here, SOMETIMES the contents would change ... Why?         // the platform is solaris 64 bit         // compiler is sun workshop 12         // my code is compiled as  ELF 32-bit MSB relocatable SPARC32PLUS Version 1, V8+ Required         // but need to link with some shared lib which are ELF 32-bit MSB dynamic lib SPARC Version 1, dynamically linked, stripped     }

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• Is it better to store user text (such as a blog entry or private messages) in the database or as flat files?

  - by Fredashay

  I'm building a social networking type site that will be storing large chunks of text that's entered by users, such as blog entries and private messages. As such, these will be entered once, with minimal revisions, but many reads by multiple users over time. I'm using MySQL, by the way. My concerns are: Storing large blocks of text on the database will fill the database to capacity eventually. I read somewhere that storing user text in flat files is a security risk? (The filenames will be generated dynamically by the PHP, not by the user.) Storing them as text files may cause them to become out of sync if I ever have to reinitialize the database and restore it from backups. What are all your thoughts and advice, pros and cons?

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• How do I make a multiple file upload?

  - by Bluemagica

  I am trying to make a multiple image uploader. The file upload fields are being added in the form dynamically using jquery. I tried making an array of the fields since I don't want to have a hidden field. so my generated upload fields look like <input type="file" id="img0" name="img[]"/> <input type="file" id="img1" name="img[]"/> <input type="file" id="img2" name="img[]"/> ..... .. And on the php side I did something like if(isset($_FILES['img'])) { foreach($_FILES['img'] as $k=>$v) { if($v!="") { uploadImage($k,0,0,0,"content/gallery/"); } } } Now I know I am way too wrong, since in that code I am looping through the 'img' file's properties instead of all images....but I have no idea how to fix this. PS: uploadImage is a function I wrote which expects the file input field's name as the first parameter.

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• VB.NET logical expression evaluator

  - by Tim

  I need to test a logical expression held in a string to see if it evaluate to TRUE or FALSE.(the strig is built dynamically) For example the resulting string may contain "'dog'<'cat' OR (14 AND 4<6)". There are no variables in the string, it will logically evaluate. It will only contain simple operators = < < = <= and AND , OR and Open and Close Brackets, string constants and numbers. (converted to correct syntax && || etc.) I currently acheive this by creating a jscipt function and compiling it into a .dll. I then reference the .dll in my VB.NET project. class ExpressionEvaluator { function Evaluate(Expression : String) { return eval(Expression); } } Is there a simpler method using built in .NET functions or Lamdba expressions.

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• Set the mouseover Attribute of a div using JQuery

  - by Abs

  Hello all, I would like to set an attribute for a div. I have done this: $('#row-img_1').onmouseover = function (){ alert('foo'); }; $('#row-img_2').onmouseout = function (){ alert('foo2'); }; However, the above has not worked, it does not alert when mouse is over or when it moves out. I have also tried the $('#row-img_1').attr(); and I could not get this to work either. I am aware that I should be using a more effective event handling system but my divs are dynamically generated. Plus this is a small project. ;) Thanks all for any help.

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• Does jQuery.on() work for elements that are added after the event handler is created?

  - by orokusaki

  I was under the impression all this time that .on() worked like .live() with regards to dynamically created elements (e.g. I use $('.foo').on('click', function(){alert('click')}); and then an element with the class foo is created due to some AJAX, now I'm expecting a click on that element to cause an alert). In practice, these weren't the results I got. I could be making a mistake, but could somebody help me understand the new way to achieve these results, in the wake of .on()? Thanks in advance.

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• Gridview making a column invisable

  - by flyersun

  Hi I have a grid view which is dynamically generated via C# using a DataSet. I'm passing a row ID field (from the database) to the grid view, as this is required when a user clicks to edit a records. However I don't want the user to be able to view the column. I have tried the following but it doesn’t seem to work? Could anyone suggest a way to hide the column or a better way of attaching the information to the grid view row so it can be used at a later stage. c# DataColumn ColImplantCustomerDetailsID = new DataColumn(); ColImplantCustomerDetailsID.ColumnName = "Implant ID"; ColImplantCustomerDetailsID.DataType = typeof(int); ColImplantCustomerDetailsID.Visable = false; <-- visable doens't work here. asp.net

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• Is dynamic evaluation of xpath variable string possible using .net 2.0 xslt implementation?

  - by Crocked

  Hi, I'm trying to evaluate an xpath varable I'm building dynamically based on the position of the node. I can create the xpath string in a variable but when I select the value of this just get the string and not the node set I need. I use the following to create the xpath <xsl:variable name="xpathstring" select="normalize-space(concat(&quot;//anAttribute[@key='pos&quot;,position(),&quot;']&quot;))"/> and try to output the value with the following. <xsl:value-of select="$xpathstring"/> If I execute the xpath in my debugger I get the nodeset but in my xml output only get the xpath string which looks like this //anAttribute[@key='pos1'] I had a look at exslt dyn:evaluate which seems to enable this but this seems to be only supported by certain processors and doesn't provide a standalone implementation or at least as far as I could see (currently using the standard .net 2.0 xslt whihc is only xslt 1.0 as far as I recall) Is there anyway to handle this without changing processor? Kind Regards, Crocked

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• class/lib for parallel donwloads on iphone

  - by lope

  Hi there! I need some class or lib that would allow me to run multiple parallel downloads. I didn't have luck finding any, do you guys know about something useful? I need to add new files to download dynamically, so something that only get initialized with urls at the beginning won't help me much. Any help would be greatly appreciated. I tried to create my own, but I had some problems with it. So I figured I would try to get something that is already done.

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