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• A map and set which uses contiguous memory and has a reserve function

  - by edA-qa mort-ora-y

  I use several maps and sets. The lack of contiguous memory, and high number of (de)allocations, is a performance bottleneck. I need a mainly STL-compatbile map and set class which can use a contiguous block of memory for internal objects (or multiple blocks). It also needs to have a reserve function so that I can preallocate for expected sizes. Before I write my own I'd like to check what is available first. Is there something in Boost which does this? Does somebody know of an available implementation elsewhere? Intrusive collection types are not usable here as the same objects need to exist in several collections. As far as I know STL memory pools are per-type, not per instance. These global pools are not efficient with respect to memory locality in mutli-cpu/core processing. Object pools don't work as the types will be shared between instance but their pool should not. In many cases a hash map may be an option in some cases.

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• Home link on the menu does not highlight

  - by strangeloops

  My menu shows the active links when clicked on it except for the home link (http://www.obsia.com). It is never highlighted. I tried playing around but I can't seem to figure it out. This is the jquery code I used to highlight the links? $(function(){ var path = location.pathname.substring(1); if ( path ) $('.nav a[href$="' + path + '"]').attr('class', 'active'); }); I also have another menu on the products pages where I would like to highlight the parents of the siblings and the our products on the global menu. This is the jquery code for the products menu: $(function() { var pathname = location.pathname; var highlight; //highlight home if(pathname == "") highlight = $('ul#accordion > li:first > a:first'); else { var path = pathname.substring(1); if (path) highlight = $('ul#accordion a[href$="' + path + '"]'); }highlight.attr('class', 'active'); // hide 2nd, 3rd, ... level menus $('ul#accordion ul').hide(); // show child menu on click $('ul#accordion > li > a.product_menu').click(function() { //minor improvement $(this).siblings('ul').toggle("slow"); return false; }); //open to current group (highlighted link) by show all parent ul's $('a.active').parents('ul').show(); $('a.active').parents('h2 a').css({'color':'#ff8833'}); //if you only have a 2 level deep navigation you could //use this instead //$('a.selected').parents("ul").eq(0).show(); }); }); I tried adding this: $(this).parents('ul').addClass('active'); but that does not seem to do the trick? Does anybody have a simple way of accomplishing it? Any help would be appreciated from you guys. Kind Regards, G

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• mySQL ORDER BY ASC works, DESC does not...

  - by Ben

  I've "integrated" SMF into Wordpress by querying the forum for a list of the most recent videos from a specific forum board and displaying them on the Wordpress homepage. However when I add the ORDER BY clause, the query (which I tested on other parts of the same page successfully), breaks. To add to the mix, I am using the Auto Embed plugin to allow the videos to be played on the homepage, as well as using a jCarousel feature to rotate them. People were kind enough to help me here last time with the regexp to filter the video urls, I'm hoping for the same luck this time! Here is the entire function (remove the DESC and it works...): function SMF_getRecentVids($limit=10){ global $smf_settingsphp_d; if(file_exists($smf_settingsphp_d)) include($smf_settingsphp_d); include "AutoEmbed-1.4/AutoEmbed.class.php"; $AE = new AutoEmbed(); $connect = new wpdb($db_user,$db_passwd,$db_name,$db_server); $connect->query("SET NAMES 'UTF8'"); $sql = SELECT m.subject, m.ID_MSG, m.body, m.ID_TOPIC, m.ID_BOARD, t.ID_FIRST_MSG FROM {$db_prefix}messages AS m LEFT JOIN {$db_prefix}topics AS t ON (m.ID_TOPIC = t.ID_TOPIC) WHERE (m.ID_BOARD = 8) ORDER BY t.ID_FIRST_MSG DESC"; $vids = $connect->get_results($sql); $c = 0; $content = "imageCarousel_itemList = ["; foreach ($vids as $vid) { if ($c > $limit) continue; //extract video code from body $input = $vid->body; $regexp = "/\b(?:(?:https?|ftp):\/\/|www\.)[-a-z0-9+&@#\/%?=~_|!:,.;]*[-a-z0-9+&@#\/%=~_|]/i"; if(preg_match_all($regexp, $input, $matches)) { $AE->parseUrl($matches[0][0]); $imageURL = $AE->getImageURL(); $AE->setWidth(290); $AE->setHeight(240); $content .= "{url: '".$AE->getEmbedCode()."', title: '".$vid->subject."', caption: '', description: ''},"; } $c++; } $content .= "]"; echo $content; $wpdb = new wpdb(DB_USER, DB_PASSWORD, DB_NAME, DB_HOST); }

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• singleton factory connection pdo

  - by Scarface

  Hey guys I am having a lot of trouble trying to understand this and I was just wondering if someone could help me with some questions. I found some code that is supposed to create a connection with pdo. The problem I was having was having my connection defined within functions. Someone suggested globals but then pointed to a 'better' solution http://stackoverflow.com/questions/130878/global-or-singleton-for-database-connection. My questions with this code are. PS I cannot format this code on this page so see the link if you cannot read What is the point of the connection factory? What goes inside new ConnectionFactory(...) When the connection is defined $db = new PDO(...); why is there no try or catch (I use those for error handling)? Does this then mean I have to use try and catch for every subsequent query? class ConnectionFactory { private static $factory; public static function getFactory() { if (!self::$factory) self::$factory = new ConnectionFactory(...); return self::$factory; } private $db; public function getConnection() { if (!$db) $db = new PDO(...); return $db; } } function getSomething() { $conn = ConnectionFactory::getFactory()-getConnection(); . . . }

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• strange behavior in python

  - by fsm

  The tags might not be accurate since I am not sure where the problem is. I have a module where I am trying to read some data from a socket, and write the results into a file (append) It looks something like this, (only relevant parts included) if __name__ == "__main__": <some init code> for line in file: t = Thread(target=foo, args=(line,)) t.start() while nThreads > 0: time.sleep(1) Here are the other modules, def foo(text): global countLock, nThreads countLock.acquire() nThreads += 1 countLock.release() """connect to socket, send data, read response""" writeResults(text, result) countLock.acquire() nThreads -= 1 countLock.release() def writeResults(text, result): """acquire file lock""" """append to file""" """release file lock""" Now here's the problem. Initially, I had a typo in the function 'foo', where I was passing the variable 'line' to writeResults instead of 'text'. 'line' is not defined in the function foo, it's defined in the main block, so I should have seen an error, but instead, it worked fine, except that the data was appended to the file multiple times, instead of being written just once, which is the required behavior, which I got when I fixed the typo. My question is, 1) Why didn't I get an error? 2) Why was the writeResults function being called multiple times?

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• UIViewController remaining

  - by Guy

  Hi Guys. I have a UIViewController named equationVC who's user interface is being programmatically created from another NSObject class called equationCon. Upon loading equationVC, a method called chooseInterface is called from the equationCon class. I have a global variable (globalVar) that points to a user defined string. chooseInterface finds a method in the equationCon class that matches the string globalVar points to. In this case, let's say that globalVar points to a string that is called "methodThatMatches." In methodThatMatches, another view controller needs to show the results of what methodThatMatches did. methodThatMatches creates a new equationVC that calls upon methodThatMatches2. As a test, each method changes the color of the background. When the application starts up, I get a purple background, but as soon as I hit backwards I get another purple screen, which should be yellow. I do not think that I am release the view properly. Can anyone help? -(void)chooseInterface { NSString* equationTemp = [globalVar stringByReplacingOccurrencesOfString:@" " withString:@""]; equationTemp = [equationTemp stringByReplacingOccurrencesOfString:@"'" withString:@""]; SEL equationName = NSSelectorFromString(equationTemp); NSLog(@"selector! %@",NSStringFromSelector(equationName)); if([self respondsToSelector:equationName]){ [self performSelector:equationName]; } } -(void)methodThatMatches{ self.equationVC.view.backgroundColor = [UIColor yellowColor]; [setGlobalVar:@"methodThatMatches2"]; EquationVC* temp = [[EquationVC alloc] init]; [[self.equationVC navigationController] pushViewController:temp animated:YES ]; [temp release]; } -(void)methodThatmatches2{ self.equationVC.view.backgroundColor = [UIColor purpleColor]; }

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• Switch statement usage - C

  - by Jamie Keeling

  Hello, I have a thread function on Process B that contains a switch to perform certain operations based on the results of an event sent from Process A, these are stored as two elements in an array. I set the first element to the event which signals when Process A has data to send and I have the second element set to the event which indicates when Process A has closed. I have began to implement the functionality for the switch statement but I'm not getting the results as I expect. Consider the following: // //Thread function DWORD WINAPI ThreadFunc(LPVOID passedHandle) { for(i = 0; i < 2; i++) { ghEvents[i] = OpenEvent(EVENT_ALL_ACCESS, FALSE, TEXT("Global\\ProducerEvents")); if(ghEvents[i] == NULL) { getlasterror = GetLastError(); } } dwProducerEventResult = WaitForMultipleObjects( 2, ghEvents, FALSE, INFINITE); switch (dwProducerEventResult) { case WAIT_OBJECT_0 + 0: { //Producer sent data //unpackedHandle = *((HWND*)passedHandle); MessageBox(NULL,L"Test",L"Test",MB_OK); break; } case WAIT_OBJECT_0 + 1: { //Producer closed ExitProcess(1); break; } default: return; } } As you can see if the event in the first array is signalled Process B should display a simple message box, if the second array is signalled the application should close. When I actually close Process A, Process B displays the message box instead. If I leave the first case blank (Do nothing) both applications close as they should. Furthermore Process B sends data an error is thrown (When I comment out the unpacking): Have I implemented my switch statement incorrectly? I though I handled the unpacking of the HWND correctly too, any suggestions? Thanks for your time.

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• Does Security Trimming work with Web Forms Routing?

  - by Slauma

  In my web.config I have configured a SiteMapProvider with securityTrimmingEnabled="true" and on my main master page is an asp:Menu control bound to an asp:SiteMapDataSource. In addition I have configured restricted access to all pages in a subfolder "Admin" (using another web.config in this subfolder). If I put a sitemapNode in Web.sitemap... <siteMapNode url="~/Admin/Default.aspx" title="Administration" description="" > ... only users in role "Admin" will have the menu item related to that siteMapNode. So this is working fine and as intended. Now I have defined a URL route in Global.asax to map the physical file to a new URL: System.Web.Routing.RouteTable.Routes.MapPageRoute("AdminHomeRoute", "Administration/Home", "~/Admin/Default.aspx"); But when I use this route-URL in the SiteMap file... <siteMapNode url="Administration/Home" title="Administration" description="" > ... it seems that security trimming does not work: The menu item is visible for all users. (Access to the page is still restricted though, so selecting the menu item by non-Admin users does not navigate to the restricted page.) Question: Is there any setting I've missed so far to make security trimming working with URL routing in ASP.NET 4.0 Web Forms? Did I do something wrong? Is there any work-around? Thank you for help!

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• ASP.NET UpdatePanel > Get selected value from checbox list outside of panel

  - by Rob

  Hi, I have a listing in an UpdatePanel I have some filters for that list in the form a checkboxList control. The checkboxList is created dynamically on page load During the Ajax update (postback), the checkbox list is not populated form the viewstate, so I cannot get the listing to filter. Note: If I put the checkbox list items directly in the markup, it all works, just not if the listing is populated on-postback. protected override void OnLoad(EventArgs e) { if (!Page.IsPostBack) { foreach (var p in global.Product) CheckListManufacurer.Items.Add(new ListItem(p, p)); } base.OnLoad(e); } <form id="ProductListForm" runat="server"> <asp:ScriptManager ID="ScriptManager" runat="server" EnablePartialRendering="true"></asp:ScriptManager> <asp:CheckBoxList ID="CheckListManufacurer" runat="server" EnableViewState="true"> <asp:ListItem Value="" Text="(All)"></asp:ListItem> </asp:CheckBoxList> <asp:Button id="btnTestAjax" runat="server" Text="Test" /> <asp:UpdatePanel ID="ProductsPanel" runat="server" UpdateMode="Conditional"> <Triggers> <asp:AsyncPostBackTrigger ControlID="btnTestAjax" /> <asp:AsyncPostBackTrigger ControlID="CheckListManufacurer" /> </Triggers> <ContentTemplate> <sr:ProductList ID="Products" runat="server" /> </ContentTemplate> </asp:UpdatePanel> </form>

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• retrieve my wall post in my native i phone application

  - by hardik

  hello all i want to retrieve my all the wall post that i have posted until now i am using this fql query from my native iphone application in order to fetch it but i think i am maiking some mistake please guide me how could i do that the following is my fql query to get wall post - (void)session:(FBSession*)session didLogin:(FBUID)uid { NSString *fql = [NSString stringWithFormat:@"SELECT comments, likes FROM stream WHERE post_id=100000182297319"]; NSLog(@"session key is %@",_session.sessionKey); NSLog(@"from global key is %@",[twitfacedemoAppDelegate getfacebookkey]); NSDictionary* params = [NSDictionary dictionaryWithObject:fql forKey:@"query"]; [[FBRequest requestWithDelegate:self] call:@"facebook.fql.query" params:params]; this is my other delgate method to get the wall post but this code is not working - (void)request:(FBRequest*)request didLoad:(id)result { @try { NSLog(@"result is %@",result); if(result==nil) { UIAlertView *a=[[UIAlertView alloc]initWithTitle:@"Can't login" message:@"You cant login here." delegate:nil cancelButtonTitle:@"ok" otherButtonTitles:nil]; [a show]; [a release]; } else { NSArray* users = result; NSDictionary* user = [users objectAtIndex:0]; NSString* name = [[NSString alloc]initWithString:[user objectForKey:@"name"]]; NSLog(@"name is %@",name); _label.text = [NSString stringWithFormat:@"Logged in as %@", name]; NSString *globalfacebookname; globalfacebookname=[[NSString alloc]initWithString:name]; NSLog(@"value is %@",globalfacebookname); NSString *fid=[user objectForKey:@"uid"]; NSLog(@"FACEBOOK ID WITH STRING DATATYP %@",fid); [twitfacedemoAppDelegate fetchfacebookid:fid]; } } @catch (NSException * e) { NSLog(@"Problem in dialog didFailWithError:%@",e); } } please guide me how could i retrieve my all the post from facebook to my native iphone application through fql query thanks in advance

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• How to configure SQLite to run with NHibernate where assembly resolves System.Data.SQLite?

  - by Michael Hedgpeth

  I am using the latest NHibernate 2.1.0Beta2. I'm trying to unit test with SQLite and have the configuration set up as: Dictionary<string, string> properties = new Dictionary<string, string>(); properties.Add("connection.driver_class", "NHibernate.Driver.SQLite20Driver"); properties.Add("dialect", "NHibernate.Dialect.SQLiteDialect"); properties.Add("connection.provider", "NHibernate.Connection.DriverConnectionProvider"); properties.Add("query.substitutions", "true=1;false=0"); properties.Add("connection.connection_string", "Data Source=test.db;Version=3;New=True;"); properties.Add("proxyfactory.factory_class", "NHibernate.ByteCode.LinFu.ProxyFactoryFactory, NHibernate.ByteCode.LinFu"); configuration = new Configuration(); configuration.SetProperties(properties); When I try to run it, I get the following error: NHibernate.HibernateException: The IDbCommand and IDbConnection implementation in the assembly System.Data.SQLite could not be found. Ensure that the assembly System.Data.SQLite is located in the application directory or in the Global Assembly Cache. If the assembly is in the GAC, use <qualifyAssembly/> element in the application configuration file to specify the full name of the assembly. at NHibernate.Driver.ReflectionBasedDriver..ctor(String driverAssemblyName, String connectionTypeName, String commandTypeName) in c:\CSharp\NH\nhibernate\src\NHibernate\Driver\ReflectionBasedDriver.cs: line 26 at NHibernate.Driver.SQLite20Driver..ctor() in c:\CSharp\NH\nhibernate\src\NHibernate\Driver\SQLite20Driver.cs: line 28 So it looks like I need to reference the assembly directly. How would I do this so I don't get this error anymore? I downloaded the latest assembly from here: http://sourceforge.net/projects/sqlite-dotnet2.

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• How to handle "Remember me" in the Asp.Net Membership Provider

  - by RemotecUk

  Ive written a custom membership provider for my ASP.Net website. Im using the default Forms.Authentication redirect where you simply pass true to the method to tell it to "Remember me" for the current user. I presume that this function simply writes a cookie to the local machine containing some login credential of the user. What does ASP.Net put in this cookie? Is it possible if the format of my usernames was known (e.g. sequential numbering) someone could easily copy this cookie and by putting it on their own machine be able to access the site as another user? Additionally I need to be able to inercept the authentication of the user who has the cookie. Since the last time they logged in their account may have been cancelled, they may need to change their password etc so I need the option to intercept the authentication and if everything is still ok allow them to continue or to redirect them to the proper login page. I would be greatful for guidance on both of these two points. I gather for the second I can possibly put something in global.asax to intercept the authentication? Thanks in advance.

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• Error while compiling Hello world program for CUDA

  - by footy

  I am using Ubuntu 12.10 and have sucessfully installed CUDA 5.0 and its sample kits too. I have also run sudo apt-get install nvidia-cuda-toolkit Below is my hello world program for CUDA: #include <stdio.h> /* Core input/output operations */ #include <stdlib.h> /* Conversions, random numbers, memory allocation, etc. */ #include <math.h> /* Common mathematical functions */ #include <time.h> /* Converting between various date/time formats */ #include <cuda.h> /* CUDA related stuff */ __global__ void kernel(void) { } /* MAIN PROGRAM BEGINS */ int main(void) { /* Dg = 1; Db = 1; Ns = 0; S = 0 */ kernel<<<1,1>>>(); /* PRINT 'HELLO, WORLD!' TO THE SCREEN */ printf("\n Hello, World!\n\n"); /* INDICATE THE TERMINATION OF THE PROGRAM */ return 0; } /* MAIN PROGRAM ENDS */ The following error occurs when I compile it with nvcc -g hello_world_cuda.cu -o hello_world_cuda.x /tmp/tmpxft_000033f1_00000000-13_hello_world_cuda.o: In function `main': /home/adarshakb/Documents/hello_world_cuda.cu:16: undefined reference to `cudaConfigureCall' /tmp/tmpxft_000033f1_00000000-13_hello_world_cuda.o: In function `__cudaUnregisterBinaryUtil': /usr/include/crt/host_runtime.h:172: undefined reference to `__cudaUnregisterFatBinary' /tmp/tmpxft_000033f1_00000000-13_hello_world_cuda.o: In function `__sti____cudaRegisterAll_51_tmpxft_000033f1_00000000_4_hello_world_cuda_cpp1_ii_b81a68a1': /tmp/tmpxft_000033f1_00000000-1_hello_world_cuda.cudafe1.stub.c:1: undefined reference to `__cudaRegisterFatBinary' /tmp/tmpxft_000033f1_00000000-1_hello_world_cuda.cudafe1.stub.c:1: undefined reference to `__cudaRegisterFunction' /tmp/tmpxft_000033f1_00000000-13_hello_world_cuda.o: In function `cudaError cudaLaunch<char>(char*)': /usr/lib/nvidia-cuda-toolkit/include/cuda_runtime.h:958: undefined reference to `cudaLaunch' collect2: ld returned 1 exit status I am also making sure that I use gcc and g++ version 4.4 ( As 4.7 there is some problem with CUDA)

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• Rotate a feature Image in Open Layers - Javascript variable from JSON.

  - by Ozaki

  I have an open layers map. It adds and removes my "imageFeature" every 10secs or so. I have a JSON feed that gives me the rotation that I need, I have a request to get that rotation and set it as a variable of rotationv. Everything works but the fact when the image is recreated it does not update the rotation. My code is as follows: JSON request: var rotationv = (function () { rotationv = null; $.ajax({ 'async': false, 'global': true, 'url': urldefault, 'dataType': "json", 'success': function (data) { rotationv = data.rotation; } }); return rotationv })(); Creating image feature: imageFeature = new OpenLayers.Feature.Vector( new OpenLayers.Geometry.Point(mylon, mylat), { rotation: rotationv } ); The image is set in the styling elsewhere. Why does this not rotate my image? Debugging with firebug I now notice that "rotationv" is updating as per it should be. But when the point is destroyed then added again it does not apply the new rotation... Add: I realised that the "image" is applied as per the layer. So I need to figure out how to re apply the stylemap to the layer so it will trigger the "update" on the page. //redefine layer 2 so it can be updated// //test.js is just a 0.0 testref// var layer2 = new OpenLayers.Layer.GML("Layer 2", "test.js", { format: OpenLayers.Format.GeoJSON, styleMap: styleMap }); But even if I add the above into my function still no luck. Included map.addLayers([layer2]); into the function as well.

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• Is their a definitive list for the differences between the current version of SQL Azure and SQL Serv

  - by Aim Kai

  I am a relative newbie when it comes to SQL Azure!! I was wondering if there was a definitive list somewhere regarding what is and is not supported by SQL Azure in regards to SQL Server 2008? I have had a look through google but I've noticed some of the blog posts are missing things which I have found through my own testing: For example, quite a lot is summarised in this blog entry http://www.keepitsimpleandfast.com/2009/12/main-differences-between-sql-azure-and.html Common Language Runtime (CLR) Database file placement Database mirroring Distributed queries Distributed transactions Filegroup management Global temporary tables Spatial data and indexes SQL Server configuration options SQL Server Service Broker System tables Trace Flags which is a repeat of the MSDN page http://msdn.microsoft.com/en-us/library/ff394115.aspx I've noticed from my own testing that the following seem to have issues when migrating from SQL Server 2008 to the Azure: XML Types (the msdn does mention large custom types - I guess it may include this?? even if the data schema is really small?) Multi-part views I've been using SQL Azure Migration Wizard v3.1.8 to migrate local databases into the cloud. I was wondering if anyone could point to a list or give me any information till when these features are likely to be included in SQL Azure.

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• Intel Assembly Programming

  - by Kay

  class MyString{ char buf[100]; int len; boolean append(MyString str){ int k; if(this.len + str.len>100){ for(k=0; k<str.len; k++){ this.buf[this.len] = str.buf[k]; this.len ++; } return false; } return true; } } Does the above translate to: start: push ebp ; save calling ebp mov ebp, esp ; setup new ebp push esi ; push ebx ; mov esi, [ebp + 8] ; esi = 'this' mov ebx, [ebp + 14] ; ebx = str mov ecx, 0 ; k=0 mov edx, [esi + 200] ; edx = this.len append: cmp edx + [ebx + 200], 100 jle ret_true ; if (this.len + str.len)<= 100 then ret_true cmp ecx, edx jge ret_false ; if k >= str.len then ret_false mov [esi + edx], [ebx + 2*ecx] ; this.buf[this.len] = str.buf[k] inc edx ; this.len++ aux: inc ecx ; k++ jmp append ret_true: pop ebx ; restore ebx pop esi ; restore esi pop ebp ; restore ebp ret true ret_false: pop ebx ; restore ebx pop esi ; restore esi pop ebp ; restore ebp ret false My greatest difficulty here is figuring out what to push onto the stack and the math for pointers. NOTE: I'm not allowed to use global variables and i must assume 32-bit ints, 16-bit chars and 8-bit booleans.

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• MEF and ASP.NET MVC

  - by denis_n

  I want to use MEF with asp.net mvc. I wrote following controller factory: public class MefControllerFactory : DefaultControllerFactory { private CompositionContainer _Container; public MefControllerFactory(Assembly assembly) { _Container = new CompositionContainer(new AssemblyCatalog(assembly)); } protected override IController GetControllerInstance(RequestContext requestContext, Type controllerType) { if (controllerType != null) { var controllers = _Container.GetExports<IController>(); var controllerExport = controllers.Where(x => x.Value.GetType() == controllerType).FirstOrDefault(); if (controllerExport == null) { return base.GetControllerInstance(requestContext, controllerType); } return controllerExport.Value; } else { throw new HttpException((Int32)HttpStatusCode.NotFound, String.Format( "The controller for path '{0}' could not be found or it does not implement IController.", requestContext.HttpContext.Request.Path ) ); } } } In Global.asax.cs I'm setting my controller factory: protected void Application_Start() { AreaRegistration.RegisterAllAreas(); RegisterRoutes(RouteTable.Routes); ControllerBuilder.Current.SetControllerFactory(new MefControllerFactory.MefControllerFactory(Assembly.GetExecutingAssembly())); } I have an area: [Export(typeof(IController))] [PartCreationPolicy(CreationPolicy.NonShared)] public class HomeController : Controller { private readonly IArticleService _articleService; [ImportingConstructor] public HomeController(IArticleService articleService) { _articleService = articleService; } // // GET: /Articles/Home/ public ActionResult Index() { Article article = _articleService.GetById(55); return View(article); } } IArticleService is an interface. There is a class which implements IArticleService and Exports it. It works. Is this everything what I need for working with MEF? How can I skip setting PartCreationPolicy and ImportingConstructor for controller? I want to set my dependencies using constructor. When PartCreationPolicy is missing, I get following exception: A single instance of controller 'MvcApplication4.Areas.Articles.Controllers.HomeController' cannot be used to handle multiple requests. If a custom controller factory is in use, make sure that it creates a new instance of the controller for each request.

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• Java: Altering UI fonts (Nimbus) doesn't work!

  - by ivan_ivanovich_ivanoff

  Hello! I'm referring to this Nimbus reference. I tried to set global Font to be slightly larger: UIManager.put("defaultFont", new Font(Font.SANS_SERIF, 0, 16)); ...works only for the menu but nothing else (buttons, labels). I tried to change labels and buttons fonts with UIManager.put("Button.font", new Font(Font.SANS_SERIF, 0, 16)); UIManager.put("Label.font", new Font(Font.SANS_SERIF, 0, 16)); but the font remains. The only thing that worked for me was deriving a font: someButton.setFont(someButton.getFont().deriveFont(16f)); But this is not an option, since this must be done for each element manually. Note, that deriving a font for UIManager doesn't work either: UIManager.put("Label.font", UIManager.getFont("Label.font").deriveFont(16f)); I tested everything under Linux and Windows: same behavior. I just can't understand how an API can be so messy. If a method is called setFont(..) then I expect it to set the font. If this method fails to set the font in any thinkable circumstances, then it should be deprecated. EDIT: The problem not only applies to Nimbus, but also to the default LAF.

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• Child sProc cannot reference a Local temp table created in parent sProc

  - by John Galt

  On our production SQL2000 instance, we have a database with hundreds of stored procedures, many of which use a technique of creating a #TEMP table "early" on in the code and then various inner stored procedures get EXECUTEd by this parent sProc. In SQL2000, the inner or "child" sProc have no problem INSERTing into #TEMP or SELECTing data from #TEMP. In short, I assume they can all refer to this #TEMP because they use the same connection. In testing with SQL2008, I find 2 manifestations of different behavior. First, at design time, the new "intellisense" feature is complaining in Management Studio EDIT of the child sProc that #TEMP is an "invalid object name". But worse is that at execution time, the invoked parent sProc fails inside the nested child sProc. Someone suggested that the solution is to change to ##TEMP which is apparently a global temporary table which can be referenced from different connections. That seems too drastic a proposal both from the amount of work to chase down all the problem spots as well as possible/probable nasty effects when these sProcs are invoked from web applications (i.e. multiuser issues). Is this indeed a change in behavior in SQL2005 or SQL2008 regarding #TEMP (local temp tables)? We skipped 2005 but I'd like to learn more precisely why this is occuring before I go off and try to hack out the needed fixes. Thanks.

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• Calling ASP.NET Web API using JQuery ajax - cross site scripting issue

  - by SimonF

  I have a Web API which I am calling using the JQuery ajax function. When I test the service directly (using the Chrome RESTEasy extension) it works fine, however when I call it using the JQuery ajax function I get an error. I'm calling it on port 81: $.ajax({ url: "http://127.0.0.1:81/api/people", data: JSON.stringify(personToCreate), type: "POST", contentType: "application/json;charset=utf-8", statusCode: { 201: function (newPerson) { callback(newPerson); } }, success: function (newPerson) { alert("New person created with an Id of " + newPerson.Id); }, error: function (jqXHR, textStatus, errorThrown) { alert('Error. '+textStatus+'. '+errorThrown); } }); ...but when I trace it using FireBug Lite the response comes from port 82: {"Message":"No HTTP resource was found that matches the request URI 'http://127.0.0.1:82/api/people'.","MessageDetail":"No action was found on the controller 'People' that matches the request."} I think the error is, effectively, due to cross-site scripting being blocked, but I'm not actually cross-site scripting, if you see what I mean. Has anyone else come across this and been able to fix it? Edit: Routing config (global.asax.vb) is: RouteTable.Routes.MapHttpRoute(name:="DefaultApi", routeTemplate:="api/{controller}/{id}", defaults:=New With {Key .id = System.Web.Http.RouteParameter.Optional}) Controller: Public Function PostValue(ByVal departmentid As Integer, ByVal emailaddress As String, ByVal firstname As String, ByVal lastname As String) As Guid Dim context As New WSMModelDataContext Dim bllPeople As New PeopleBLL(context) Return bllPeople.Create(firstname, lastname, emailaddress, departmentid) End Function When I debug it, it doesn't get as far as running the controller, although when calling it through RESTEasy it routes correctly and the controller executes successfully. The only difference seemes to be that wen called through RESTEasy it is (correctly) using http://127.0.0.1:81 but for some reason when called via JQuery/ajax it seems to be using http://127.0.0.1:82.

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• dynamically created arrays

  - by DevAno1

  My task consists of two parts. First I have to create globbal char array of 100 elements, and insert some text to it using cin. Afterwards calculate amount of chars, and create dedicated array with the length of the inputted text. I was thinking about following solution : char[100]inputData; int main() { cin >> inputData >> endl; int length=0; for(int i=0; i<100; i++) { while(inputData[i] == "\0") { ++count; } } char c = new char[count]; Am I thinking good ? Second part of the task is to introduce in the first program dynamically created array of pointers to all inserted words. Adding a new word should print all the previous words and if there is no space for next words, size of the inputData array should be increased twice. And to be honest this is a bit too much for me. How I can create pointers to words specifically ? And how can I increase the size of global array without loosing its content ? With some temporary array ?

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• ASP.NET MVC 2.0 + Implementation of a IRouteHandler does not fire

  - by Peter

  Can anybody please help me with this as I have no idea why public IHttpHandler GetHttpHandler(RequestContext requestContext) is not executing. In my Global.asax.cs I have public class MvcApplication : System.Web.HttpApplication { public static void RegisterRoutes(RouteCollection routes) { routes.IgnoreRoute("{resource}.axd/{*pathInfo}"); routes.MapRoute( "Default", // Route name "{controller}/{action}/{id}", // URL with parameters new { controller = "Home", action = "Index", id = "" } // Parameter defaults ); routes.Add("ImageRoutes", new Route("Images/{filename}", new CustomRouteHandler())); } protected void Application_Start() { RegisterRoutes(RouteTable.Routes); } } //CustomRouteHandler implementation is below public class CustomRouteHandler : IRouteHandler { public IHttpHandler GetHttpHandler(RequestContext requestContext) { // IF I SET A BREAK POINT HERE IT DOES NOT HIT FOR SOME REASON. string filename = requestContext.RouteData.Values["filename"] as string; if (string.IsNullOrEmpty(filename)) { // return a 404 HttpHandler here } else { requestContext.HttpContext.Response.Clear(); requestContext.HttpContext.Response.ContentType = GetContentType(requestContext.HttpContext.Request.Url.ToString()); // find physical path to image here. string filepath = requestContext.HttpContext.Server.MapPath("~/logo.jpg"); requestContext.HttpContext.Response.WriteFile(filepath); requestContext.HttpContext.Response.End(); } return null; } } Can any body tell me what I'm missing here. Simply public IHttpHandler GetHttpHandler(RequestContext requestContext) does not fire. I havn't change anything in the web.config either. What I'm missing here? Please help.

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• std::locale breakage on MacOS 10.6 with LANG=en_US.UTF-8

  - by fixermark

  I have a C++ application that I am porting to MacOSX (specifically, 10.6). The app makes heavy use of the C++ standard library and boost. I recently observed some breakage in the app that I'm having difficulty understanding. Basically, the boost filesystem library throws a runtime exception when the program runs. With a bit of debugging and googling, I've reduced the offending call to the following minimal program: #include <locale> int main ( int argc, char *argv [] ) { std::locale::global(std::locale("")); return 0; } This program fails when I run this through g++ and execute the resulting program in an environment where LANG=en_US.UTF-8 is set (which on my computer is part of the default bash session when I create a new console window). Clearing the environment variable (setenv LANG=) allows the program to run without issues. But I'm surprised I'm seeing this breakage in the default configuration. My questions are: Is this expected behavior for this code on MacOS 10.6? What would a proper workaround be? I can't really re-write the function because the version of the boost libraries we are using executes this statement internally as part of the filesystem library. For completeness, I should point out that the program from which this code was synthesized crashes when launched via the 'open' command (or from the Finder) but not when Xcode runs the program in Debug mode. edit The error given by the above code on 10.6.1 is: $ ./locale terminate called after throwing an instance of 'std::runtime_error' what(): locale::facet::_S_create_c_locale name not valid Abort trap

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• Call Webservice using Javascript

  - by ajithperuva

  I am trying to call a webservice using javascript.But it shows an error like selectSingleNode() is not a method.I am trying it in mozilla firefox.Which is perfectly working in explorer when i change XMLHttpRequest to ActiveXObject.here i am adding my source code which i am tried in firefox. // Web Service functionality // Global vars var xmlDoc = null; var _serviceCallback = null; // Calls web service, web service url and parms, and callback function or null must be provided. // Callback function receives a true or false based on success of call to host function callWebService(url, callback) { _serviceCallback = callback; if(xmlDoc == null) { // xmlDoc = new XMLHttpRequest(); xmlDoc = new XMLHttpRequest(); } xmlDoc.onreadystatechange = stateChange; //callback for readystate xmlDoc.async = true; //do background processing //xmlDoc.load(url); xmlDoc.open('GET', url); xmlDoc.send(); //var doc= xmlDoc.responseXML; } // Updates readystate by callback function stateChange() { if (xmlDoc.readyState == 4) { var err = xmlDoc.parseError; var result = false; var nd; if(err.errorCode == 0) { nd = xmlDoc.selectSingleNode("//envelope/date_time"); if(nd.text != "") result = true; } // perform callback if provided if(_serviceCallback != null) _serviceCallback(result, nd == null ? "" : nd.text); } } // Callback supplied to XMLHttpRequest call function callbackTest(result, data) { obj = document.getElementById("txtOuput"); if(result) obj.value = "Success " + data; else obj.value = "Web Service Call Failed"; } Please help me...Already which kill my 8 more hours...

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• ASP.NET MVC Creating a impersonated user.

  - by Malcolm

  Hi, I have a MVC app where I have a User class and the user can also impersonate another user(Admin users only). So I have this code below that authenticates the request and instantiates my version of a User class. It then tries to get the impersonated user from the Session object but Session is not available in this method in the global.asax. Hope this makes sense. How else could I do this? protected void Application_OnAuthenticateRequest(object sender, EventArgs e) { IMylesterService service = ObjectFactory.GetInstance(); if (Context.User != null) { if (Context.User.Identity.IsAuthenticated) { User user = service.GetUser(Context.User.Identity.Name); if (user == null) throw new ApplicationException("Context.user.Identity.name is not a recognized user"); User impersonatedUser = (User)this.Session["ImpersonatedUser"]; if (impersonatedUser == null) user.ImpersonatedUser = user; else user.ImpersonatedUser = impersonatedUser; System.Threading.Thread.CurrentPrincipal = Context.User = user; return; } } User guest = service.GetGuestUser(); guest.ImpersonatedUser = guest; System.Threading.Thread.CurrentPrincipal = Context.User = guest; }

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