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  • What class structure allows for a base class and mix/match of subclasses? (Similar to Users w/ roles)

    - by cdeszaq
    I have a set of base characteristics, and then a number of sub-types. Each instance must be one of the sub-types, but can be multiple sub-types at once. The sub-types of each thing can change. In general, I don't care what subtype I have, but sometimes I do care. This is much like a Users-Roles sort of relationship where a User having a particular Role gives the user additional characteristics. Sort of like duck-typing (ie. If my Foo has a Bar, I can treat it like a ThingWithABar.) Straight inheritance doesn't work, since that doesn't allow mix/match of sub-types. (ie. no multi-inheritance). Straight composition doesn't work because I can't switch that up at runtime. How can I model this?

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  • Verify SQL Server Stored Procedures are the same on multiple servers

    I have a stored procedure I push down to all of my servers that does a custom backup job and I want to make sure all servers have the same stored procedure. Is there some way to check without going to each server and reviewing the stored procedure? Check out this to find out. New! SQL Monitor 3.0 Red Gate's multi-server performance monitoring and alerting tool gets results from Day One.Simple to install and easy to use – download a free trial today.

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  • Windows Phone 7 : 80.000 applications depuis hier, 300 nouveautés par jour, 3.700 créations françaises et un « Appselerator »

    Windows Phone : 80.000 applications depuis hier 300 nouveautés par jour, 3.700 créations françaises et un « Appselerator » Microsoft France l'a confirmé. La galerie de Windows Phone 7 a officiellement dépassé les 80.000 applications depuis hier. Parmi ces 80.000, 3.700 ont été publiées par un des 3.000 développeurs français recensés. Côté qualitatif, le catalogue s'enrichit avec quelques « poids lourds » comme Velib' ou (bientôt) iCoyote, réalisées respectivement par Mobile Tech People et par Net Sense. Les développeurs de ces applications aux expériences multi-plateformes sont particulièrement bien placés pour comparer les différents OS. Tous semblent d'accord pour dire qu...

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  • Les premiers smartphones dual-core présentés au CES hier, à quoi servira une telle puissance ?

    Les premiers smartphones dual-core présentés au CES hier, à quoi servira une telle puissance ? Mise à jour du 06.01.2011 par Katleen Début décembre 2010, Nvidia affirmait que "les processeurs dual-core seront le standard en 2011" pour les smartphones et pour les tablettes. Cette prédiction semble être sur le chemin de la réalisation, comme l'ont démontré certains acteurs du secteur hier au CES. En effet, les premiers modèles de téléphones mobiles multi-coeurs y ont été présentés. Motorola a dévoilé son Atrix 4G qu'il vante comme «le smartphone le plus puissant du monde». Dans ses entrailles, on trouve un processeur dual-core Tegra 2 cadencé à 2 Ghz et 1 Go de RAM. De quoi réaliser de ...

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  • Using Friendly Names for SQL Servers via DNS

    Wouldn't it be great if your HR folks only had to put in HR-SQL.mydomain.com for the database connection in their reports? They wouldn't have to remember it was on server Nile and they certainly wouldn't have to change their reports if you migrated their database from the Nile server to the server named Danube. In DNS there are two easy ways to do this. New! SQL Monitor 3.0 Red Gate's multi-server performance monitoring and alerting tool gets results from Day One.Simple to install and easy to use – download a free trial today.

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  • VS2010 Gotcha: Inadvertently targeting the wrong framework

    I love VS2010s multi-framework targeting feature, yet it has bitten me in the rear-end more than once. The problem is that I have created projects in .NET 3.5 without realizing it, then at some point, when something doesnt work as expected, if Im lucky I discover the mistake. Typically, this happens after you have explicitly chosen .NET 3.5 as the target framework. Then every project after that will be .NET 3.5 until you explicitly choose .NET 4.0 again. This morning that wasnt the case. I was...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • Kinect pourrait bientôt être compatible avec les ordinateurs tournant sous Windows, d'après un développeur de jeux coréen

    Kinect pourrait bientôt être compatible avec les ordinateurs tournant sous Windows, d'après un développeur coréen Mise à jour du 23.12.2010 par Katleen Alors que Kinect fait l'objet de nombreux détournements et est en train de devenir le joujou préféré des hackers, un développeur coréen spécialisé dans les jeux vidéos a déclaré que la technologie de Microsoft pourrait très bientôt fonctionner avec les ordinateurs équipés de Windows. Microsoft n'a pas encore officialisé la nouvelle, elle est donc à prendre avec des pincettes. Mais l'éditeur GamePrix, qui vient de sortir le RPG multi-joueurs Divine Souls sur PC, a déclaré que le jeu "supportera Kinect". Et, d'après la compagnie...

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  • Visual Studio 2010 Videos Refresh

    The DevExpress Channels video content is getting an IDE makeover. New videos and screencasts will use the Visual Studio 2010 IDE with DXperience v2010.x release. Some of the popular older videos are also getting re-recorded to show off new and changed product features. For example, this week youll see old (and some new) videos about the versatile and multi-platform reporting suite: XtraReports. In case you didn't know, from DXperience v2010.1 onwards, XtraReports works on these platforms:...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • Le SDK de Kinect compatible avec la preview de Windows 8 et les applications 64bits, la deuxième Beta est disponible en téléchargement

    Le SDK de Kinect compatible avec la preview de Windows 8 Et les applications 64bits, sortie de la deuxième Beta Mise à jour du 14 novembre 2011 par Idelways Microsoft a mis à jour le SDK Windows de son capteur Kinect, en vue de son lancement commercial début 2012. Cette deuxième Beta gratuite est compatible avec la version Preview pour développeurs de Windows 8. La documentation de cette Beta proclame une amélioration significative des performances de suivi des silhouettes (jusqu'à 20 % plus rapide), tout en étant plus précis. Le support fraîchement introduit du multi-threading et des processeurs multicoeurs contribue à...

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  • Microsoft diffuse le premier spot TV de Windows 8, la campagne de promotion de l'OS s'annonce plus dynamique que les précédentes

    Microsoft diffuse le premier spot TV de Windows 8 La campagne de promotion de l'OS s'annonce plus dynamique que les précédentes Pour sa sortie officielle prévue le 26 octobre, Microsoft entame la campagne marketing pour Windows 8 et diffuse une première vidéo promotionnelle. Souplesse, rapidité et habilité, telle est la ligne directrice de ce spot TV qui donne le ton d'une méga-campagne qui s'annonce plus dynamique, et de loin, par rapport aux précédentes. Le spot, diffusé aux États-Unis et sur YouTube, commence par un compte positif qui stagne à 8, suivi du déroulement rapide des fonctionnalités du nouvel OS centrées sur le multi-touch avec des clichés du numéro 8 qui re...

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  • Game Database Connectivity Java

    - by The Kraken
    I'm developing a simple multi-player puzzle game in Java. Both players should be able to view the same game board on his own computer. Then, when one player makes an action in the game (ex. drags an object onto a coordinate space), the game's view should update automatically on the other computer's game screen. I'd like all this to happen over the internet, not requiring both computers to be on the same LAN connection. If I need to use SQL/PHP to accomplish this, I'm unsure how to design the database to accomplish something as simple as the following: Player A drags element onscreen Game sends coordinates of element to database/server Player B's computer detects a change to an item in the database Player B's computer grabs the coordinates of Player A's item Player B's machine draws onscreen elements at the received coordinates Could somebody point me in the right direction?

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  • ??????30?????WebLogic Server 11g????|WebLogic Channel|??????

    - by ???02
    Oracle WebLogic Server 11g?????????????30?????????????No1??????????????????????????WebLogic Server??11g???????????????????????????ActiveCache?Real Operations?Enterprise Grid Messaging????11gR1?????????????????????????????????????????????????????????????????????? ???? ¦Oracle WebLogic Server 11g R1 ????¦Oracle WebLogic Server 11g R1 Update¦Real Operations¦Oracle TopLink 11g¦Multi Data Source¦Enterprise Grid Messaging(JMS)¦ActiveCache¦Web Tier Utilities(OHS,WebCache)¦???¦??? ??Oracle WebLogic Server 11g R1 ?? <??:?30?>http://otndnld.oracle.co.jp/ondemand/otn-seminar/fm/WLS11g/index.htmlhttp://www.oracle.com/technetwork/jp/ondemand/application-grid/wls11gr1-overview-265878-ja.pdf ??????????(????????)What's New in Oracle WebLogic Server 11g Release 1 (10.3.5)(??)http://download.oracle.com/docs/cd/E21764_01/web.1111/e13852/toc.htmOracle WebLogic Server11g ????1(10.3.4)????(???)http://download.oracle.com/docs/cd/E23549_01/web.1111/b55571/toc.htm

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  • ????????

    - by ???02
    ????????Oracle Database VaultOracle Database Vault???????2???????????????????(DBA)???????????·?????????????????????????????????????????????????????????????????????????????????????????????????????????????????? ???????????????????????????????(??????)??????????????????????? Oracle Database Vault????????????DBA????????????????????DBA????????????????????????????? ??????????????????????????????????????Oracle Database Vault??Oracle-EBS?PeopleSoft?Siebel?SAP?????????????????????????????·?????????????????1. Separation of Duties (????)DBA(?????????)????????????????????????????????????????????????????·????? ????·???????????????????????????DBA????????????????????????????????????? ??????????????????Database Vault??DBA?????????????????????????????????????????????????????????????? ?????????????????????????????????????????2. ???(????)???????·?????????????·???????????????????????????????????????????????????????????????????????????????????????????????????????? SELECT/DML/EXECUTE ???????????????????????????????????????????????????????????????????????? DDL ???????????????????????????3. Multi-Factor Access Control Policy Enforcement (???????·??????)Oracle Database Vault???????????????????????????????????????????????????????·???????????????????????????????????????????????????DDL?DML???????????????????????????4. ???????·?????? ???????????????? (ex ???IP??????)??????? ??????????????? "??" or "???" ????????????????1???????????????????? ???·??? ???????????????? ???????????5. ????·???SQL???????????·???????????????·????true ???????????SQL??????????????????? ?????? Oracle Direct

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  • Troubleshooting .NET "Fatal Execution Engine Error"

    - by JYelton
    Summary: I periodically get a .NET Fatal Execution Engine Error on an application which I cannot seem to debug. The dialog that comes up only offers to close the program or send information about the error to Microsoft. I've tried looking at the more detailed information but I don't know how to make use of it. Error: The error is visible in Event Viewer under Applications and is as follows: .NET Runtime version 2.0.50727.3607 - Fatal Execution Engine Error (7A09795E) (80131506) The computer running it is Windows XP Professional SP 3. (Intel Core2Quad Q6600 2.4GHz w/ 2.0 GB of RAM) Other .NET-based projects that lack multi-threaded downloading (see below) seem to run just fine. Application: The application is written in C#/.NET 3.5 using VS2008, and installed via a setup project. The app is multi-threaded and downloads data from multiple web servers using System.Net.HttpWebRequest and its methods. I've determined that the .NET error has something to do with either threading or HttpWebRequest but I haven't been able to get any closer as this particular error seems impossible to debug. I've tried handling errors on many levels, including the following in Program.cs: // handle UI thread exceptions Application.ThreadException += new ThreadExceptionEventHandler(Application_ThreadException); // handle non-UI thread exceptions AppDomain.CurrentDomain.UnhandledException += new UnhandledExceptionEventHandler(CurrentDomain_UnhandledException); Application.EnableVisualStyles(); Application.SetCompatibleTextRenderingDefault(false); // force all windows forms errors to go through our handler Application.SetUnhandledExceptionMode(UnhandledExceptionMode.CatchException); More Notes and What I've Tried... Installed Visual Studio 2008 on the target machine and tried running in debug mode, but the error still occurs, with no hint as to where in source code it occurred. When running the program from its installed version (Release) the error occurs more frequently, usually within minutes of launching the application. When running the program in debug mode inside of VS2008, it can run for hours or days before generating the error. Reinstalled .NET 3.5 and made sure all updates are applied. Broke random cubicle objects in frustration. Rewritten parts of code that deal with threading and downloading in attempts to catch and log exceptions, though logging seemed to aggravate the problem (and never provided any data). Question: What steps can I take to troubleshoot or debug this kind of error? Memory dumps and the like seem to be the next step, but I'm not experienced at interpreting them. Perhaps there's something more I can do in the code to try and catch errors... It would be nice if the "Fatal Execution Engine Error" was more informative, but internet searches have only told me that it's a common error for a lot of .NET-related items.

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  • Sharepoint: Convert a SPFieldMultilineText to SPFieldText

    - by driAn
    Hi Is it possible to programmatically change a "multi-line text field" to "single-line text field" ? SPFieldMultiLineText field = list.Fields["sample"] as SPFieldMultiLineText; // how to change the type to 'single line' now ? Or do I need to create an additional field (with a similiar name) and migrate the content? Thanks for any help.

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  • Facebook connect displaying invite friends dialog and closing on completion

    - by Dougnukem
    I'm trying to create a Facebook Connect application that displays a friend invite dialog within the page using Facebook's Javascript API (through a FBMLPopupDialog). The trouble is to display a friend invite dialog you use a multi-friend form which requires an action="url" attribute that represents the URL to redirect your page to when the user completes or skips the form. The problem is that I want to just close the FBMLPopupDialog (the same behavior as if the user just hit the 'X' button on the popup dialog). The best I can do is redirect the user back to the page they were on basically a reload but they lose all AJAX/Flash application state. I'm wondering if any Facebook Connect developers have run into this issue and have a good way to simply display a friend invite "lightbox" dialog within their website where they don't want to "refresh" or "redirect" when the user finishes. The facebook connect JS API provides a FB.Connect.inviteConnectUsers, which provides a nice dialog but only connects existing users of your application who also have a Facebook account and haven't connected. http://bugs.developers.facebook.com/show%5Fbug.cgi?id=4916 function fb_inviteFriends() { //Invite users log("Inviting users..."); FB.Connect.requireSession( function() { //Connect succes var uid = FB.Facebook.apiClient.get_session().uid; log('FB CONNECT SUCCESS: ' + uid); //Invite users log("Inviting users..."); //Update server with connected account updateAccountFacebookUID(); var fbml = fb_getInviteFBML() ; var dialog = new FB.UI. FBMLPopupDialog("Weblings Invite", fbml) ; //dialog.setFBMLContent(fbml); dialog.setContentWidth(650); dialog.setContentHeight(450); dialog.show(); }, //Connect cancelled function() { //User cancelled the connect log("FB Connect cancelled:"); } ); } function fb_getInviteFBML() { var uid = FB.Facebook.apiClient.get_session().uid; var fbml = ""; fbml = '<fb:fbml>\n' + '<fb:request-form\n'+ //Redirect back to this page ' action="'+ document.location +'"\n'+ ' method="POST"\n'+ ' invite="true"\n'+ ' type="Weblings Invite"\n' + ' content="I need your help to discover all the Weblings and save the Internet! WebWars: Weblings is a cool new game where we can collect fantastic creatures while surfing our favorite websites. Come find the missing Weblings with me!'+ //Callback the server with the appropriate Webwars Account URL ' <fb:req-choice url=\''+ WebwarsFB.WebwarsAccountServer +'/SplashPage.aspx?action=ref&reftype=Facebook' label=\'Check out WebWars: Weblings\' />"\n'+ '>\n'+ ' <fb:multi-friend-selector\n'+ ' rows="2"\n'+ ' cols="4"\n'+ ' bypass="Cancel"\n'+ ' showborder="false"\n'+ ' actiontext="Use this form to invite your friends to connect with WebWars: Weblings."/>\n'+ ' </fb:request-form>'+ ' </fb:fbml>'; return fbml; }

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  • WPF DataGrid multiselect binding

    - by JZ
    I have a datagrid that is multi-select enabled. I need to change the selection in the viewmodel. However, the SelectedItems property is read only and can't be directly bound to a property in the viewmodel. So how do I signal to the view that the selection has changed?

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  • Uploading multiple images through Tumblr API

    - by Joseph Carrington
    I have about 300 images I want to upload to my new Tumblr account, becuase my old wordpress site got hacked and I no longer wish to use wordpress. I uploaded one image a day for 300 days, and I'd like to be able to take these images and upload them to my tumblr site using the api. The images are currently local, stored in /images/. They all have the date they were uploaded as the first ten characters of the filename, (01-01-2009-filename.png) and I went to send this date parameter along as well. I want to be able to see the progress of the script by outputting the responses from the API to my error_log. Here is what I have so far, based on the tumblr api page. // Authorization info $tumblr_email = '[email protected]'; $tumblr_password = 'password'; // Tumblr script parameters $source_directory = "images/"; // For each file, assign the file to a pointer here's the first stumbling block. How do I get all of the images in the directory and loop through them? Once I have a for or while loop set up I assume this is the next step $post_data = fopen(dir(__FILE__) . $source_directory . $current_image, 'r'); $post_date = substr($current_image, 0, 10); // Data for new record $post_type = 'photo'; // Prepare POST request $request_data = http_build_query( array( 'email' => $tumblr_email, 'password' => $tumblr_password, 'type' => $post_type, 'data' => $post_data, 'date' => $post_date, 'generator' => 'Multi-file uploader' ) ); // Send the POST request (with cURL) $c = curl_init('http://www.tumblr.com/api/write'); curl_setopt($c, CURLOPT_POST, true); curl_setopt($c, CURLOPT_POSTFIELDS, $request_data); curl_setopt($c, CURLOPT_RETURNTRANSFER, true); $result = curl_exec($c); $status = curl_getinfo($c, CURLINFO_HTTP_CODE); curl_close($c); // Output response to error_log error_log($result); So, I'm stuck on how to use PHP to read a file directory, loop through each of the files, and do things to the name / with the file itself. I also need to know how to set the data parameter, as in choosing multi-part / formdata. I also don't know anything about cURL.

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  • Custom fonts, ellipsis on MultiLine TextViews, Glyphs and glitches.

    - by Samuh
    I am required to use custom fonts in my application. Problem: For ListViews that contain rows with Multi-Line TextViews having ellipsize property set to true, I can see some illegible characters after the ellipsis. Apparently Android pads the String(in TextView) with some characters unknown to my custom font. Single line TextView seem to work just fine. What is the best way to hide these characters or remove the padding? Thanks.

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  • How to synchronize a python dict with multiprocessing

    - by Peter Smit
    I am using Python 2.6 and the multiprocessing module for multi-threading. Now I would like to have a synchronized dict (where the only atomic operation I really need is the += operator on a value). Should I wrap the dict with a multiprocessing.sharedctypes.synchronized() call? Or is another way the way to go?

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