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  • Force Browser Mode=IE8 and document mode=IE8 Standards

    - by Dennis Cheung
    I have a internal website hosted on IIS. I added the following meta code and also add http-header that the page should in IE8 Browser mode and document mode. <meta http-equiv="X-UA-Compatible" content="IE=8" > We tested it on Visual Studio and and it works very well. However, after we publish the code to another IIS server, one developer reported that the page render in "IE8 Comatiblity" Browser Mode which causes some JavaScript to fail. There are more then 4 people working on the same windows server 2003 (RDP sessions). We use the same version of IE (same IE actually). Everyone get "IE8" Browser Mode but one person gets "IE8 Compatibility" Browser Mode. What else can make a specific user's IE load the page in a mode other than IE8 mode? PS. We checked the compatibility list in the IE; it is empty.

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  • Using GoogleMaps with JXMapKit

    - by npinti
    I have been searching on the web to see if I can use GoogleMaps with the JXMapViewer. According to this, it is illegal, but the article is more than three years old. Could anyone be kind enough to tell me if I can use GoogleMaps with the JXMap viewer? I know that Google has recently allowed desktop applications to use their static maps provided that the application is freely accessible to people on some website. If this can be done, I would appreciate some pointer to where I could start looking so that I can use Google Maps, I tried messing around with this but to no avail. Thanks in advance. Edit: I have managed to show a map in my JXMapKit. The only problem is that I am getting the image as a tiled image, whilst I only need one. Any help on this issue?

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  • CodePlex Daily Summary for Tuesday, February 08, 2011

    CodePlex Daily Summary for Tuesday, February 08, 2011Popular ReleasesyoutubeFisher: youtubeFisher 3.0 [beta]: What's new: Supports YouTube's new layout Complete internal refactoringNearforums - ASP.NET MVC forum engine: Nearforums v5.0: Version 5.0 of the ASP.NET MVC Forum Engine, containing the following improvements: .NET 4.0 as target framework using ASP.NET MVC 3. All views migrated to Razor for cleaner markup. Alternate template (Layout file) for mobile devices 4 Bug Fixes since Version 4.1 Visit the project Roadmap for more details.fuv: 1.0 release, codename Chopper Joe: features: search/replace :o to open file :s to save file :q to quitASP.NET MVC Project Awesome, jQuery Ajax helpers (controls): 1.7: A rich set of helpers (controls) that you can use to build highly responsive and interactive Ajax-enabled Web applications. These helpers include Autocomplete, AjaxDropdown, Lookup, Confirm Dialog, Popup Form, Popup and Pager html generation optimized new features for the lookup (add additional search data ) live demo went aeroEnhSim: EnhSim 2.3.6 BETA: 2.3.6 BETAThis release supports WoW patch 4.06 at level 85 To use this release, you must have the Microsoft Visual C++ 2010 Redistributable Package installed. This can be downloaded from http://www.microsoft.com/downloads/en/details.aspx?FamilyID=A7B7A05E-6DE6-4D3A-A423-37BF0912DB84 To use the GUI you must have the .NET 4.0 Framework installed. This can be downloaded from http://www.microsoft.com/downloads/en/details.aspx?FamilyID=9cfb2d51-5ff4-4491-b0e5-b386f32c0992 Changes since 2.3.0 ...TestApi - a library of Test APIs: TestApi v0.6: TestApi v0.6 comes with the following changes: TestApi code development has been moved to Codeplex: Moved TestApi soluton to VS 2010; Moved all source code to Codeplex. All development work is done there now. Fault Injection API: Integrated the unmanaged FaultInjectionEngine.dll COM component in the build; Cleaned up FaultInjectionEngine.dll to build at warning level 4; Implemented “FaultScope” which allows for in-process fault injection; Added automation scripts & sample program; ...AutoLoL: AutoLoL v1.5.5: AutoChat now allows up to 6 items. Items with nr. 7-0 will be removed! News page url's are now opened in the default browser Added a context menu to the system tray icon (thanks to Alex Banagos) AutoChat now allows configuring the Chat Keys and the Modifier Key The recent files list now supports compact and full mode Fix: Swapped mouse buttons are now properly detected Fix: Sometimes the Play button was pressed while still greyed out Champion: Karma Note: You can also run the u...mojoPortal: 2.3.6.2: see release notes on mojoportal.com http://www.mojoportal.com/mojoportal-2362-released.aspx Note that we have separate deployment packages for .NET 3.5 and .NET 4.0 The deployment package downloads on this page are pre-compiled and ready for production deployment, they contain no C# source code. To download the source code see the Source Code Tab I recommend getting the latest source code using TortoiseHG, you can get the source code corresponding to this release here.Rawr: Rawr 4.0.19 Beta: Rawr is now web-based. The link to use Rawr4 is: http://elitistjerks.com/rawr.phpThis is the Cataclysm Beta Release. More details can be found at the following link http://rawr.codeplex.com/Thread/View.aspx?ThreadId=237262 As of the 4.0.16 release, you can now also begin using the new Downloadable WPF version of Rawr!This is a pre-alpha release of the WPF version, there are likely to be a lot of issues. If you have a problem, please follow the Posting Guidelines and put it into the Issue Trac...IronRuby: 1.1.2: IronRuby 1.1.2 is a servicing release that keeps on improving compatibility with Ruby 1.9.2 and includes IronRuby integration to Visual Studio 2010. We decided to drop 1.8.6 compatibility mode in all post-1.0 releases. We recommend using IronRuby 1.0 if you need 1.8.6 compatibility. In this release we fixed several major issues: - problems that blocked Gem installation in certain cases - regex syntax: the parser was replaced with a new one that is much more compatible with Ruby 1.9.2 - cras...Pyxis 2: Production Release: Pyxis 2.0.0.13 - Full Production Release This release of Pyxis 2 offers you a wide range of features: Launch Applications in their own threads & domains Render alpha-blended icons on the desktop Support for SD & USB drives Online App Store Dynamic & Static IP support Menus & Modals Over a dozen GUI controls File selection dialogs Folder selection dialog Application, Bootloader, and Firmware Updating Update Release Notes Much More!Microsoft All-In-One Code Framework: Sample Browser v2 (CTP Release): Sample Browser v2 (CTP Release) http://i3.codeplex.com/Project/Download/FileDownload.aspx?ProjectName=1code&DownloadId=205917MVVM Light Toolkit: MVVM Light Toolkit V3 SP1 (4): There was a small issue with the previous release that caused errors when installing the templates in VS10 Express. This release corrects the error. Only use this if you encountered issues when installing the previous release. No changes in the binaries.Finestra Virtual Desktops: 1.0: Finally the version 1.0 release! Sorry for the long delay since the last release, but I think that you'll find this release to be really smooth, really stable, and a really great enhancement to Windows. New features include: Windows 7 taskbar integration Major performance and usability improvements Redesigned look and feel New name: Finestra Better automatic updating Much faster full-screen switcher Fixes Windows 7 hotkey collisions by default Updated installerFacebook C# SDK: 5.0.2 (BETA): PLEASE TAKE A FEW MINUTES TO GIVE US SOME FEEDBACK: Facebook C# SDK Survey This is third BETA release of the version 5 branch of the Facebook C# SDK. Remember this is a BETA build. Some things may change or not work exactly as planned. We are absolutely looking for feedback on this release to help us improve the final 5.X.X release. This release contains some breaking changes. Particularly with authentication. After spending time reviewing the trouble areas that people are having using th...ASP.NET MVC SiteMap provider: MvcSiteMapProvider 3.0.0 for MVC3: Using NuGet?MvcSiteMapProvider is also listed in the NuGet feed. Learn more... Like the project? Consider a donation!Donate via PayPal via PayPal. ChangelogTargeting ASP.NET MVC 3 and .NET 4.0 Additional UpdatePriority options for generating XML sitemaps Allow to specify target on SiteMapTitleAttribute One action with multiple routes and breadcrumbs Medium Trust optimizations Create SiteMapTitleAttribute for setting parent title IntelliSense for your sitemap with MvcSiteMapSchem...patterns & practices SharePoint Guidance: SharePoint Guidance 2010 Hands On Lab: SharePoint Guidance 2010 Hands On Lab consists of six labs: one for logging, one for service location, and four for application setting manager. Each lab takes about 20 minutes to walk through. Each lab consists of a PDF document. You can go through the steps in the doc to create solution and then build/deploy the solution and run the lab. For those of you who wants to save the time, we included the final solution so you can just build/deploy the solution and run the lab.Value Injecter - object(s) to -> object mapper: 2.3: it lets you define your own convention-based matching algorithms (ValueInjections) in order to match up (inject) source values to destination values. inject from multiple sources in one InjectFrom added ConventionInjectionMobile Device Detection and Redirection: 0.1.11.11: Improvements to Beta Release The following changes have been made in version 0.1.11.11: BlackBerry Version 6 devices (such as the 9800 Torch) are now correctly identified with a dedicated handler. Android powered devices are now correctly identified. Minor change to Provider.cs to improve performance and optimise data sent to 51Degrees.mobi if the option is enabled. GC.collect is no longer called at any point. All garbage collection now happens automatically IMPORTANT CHANGES This rele...TweetSharp: TweetSharp v2.0.0.0 - Preview 10: Documentation for this release may be found at http://tweetsharp.codeplex.com/wikipage?title=UserGuide&referringTitle=Documentation. Note: This code is currently preview quality. Preview 9 ChangesAdded support for trends Added support for Silverlight 4 Elevated WP7 fixes Third Party Library VersionsHammock v1.1.7: http://hammock.codeplex.com Json.NET 4.0 Release 1: http://json.codeplex.comNew Projectsbisolu_sendus: bisolu smsBlack & Scholes: Black & Scholes OptionsCosLabs: CosLabs makes it easy to see the full capabilities of the Cosmos operating system toolkit. CosLabs has a number of experiments to find new and unique uses for Cosmos. It's developed in C#.DeployToAzure: DeployToAzure allows automating deployment of Windows Azure project and making it a part of TFS 2010 build process without using PowerShell and Azure Management CmdLets. Digital: Educational purposesDiscogsNet: DiscogsNet is a .NET library to query the Discogs.com API and parse the Discogs XML data dump files. It's developed in C# and usable from any .NET language. The API of the library is focused on ease of use and intuitiveness.DJME - The jQuery extensions for ASP.NET MVC: DJME - The jQuery extensions for ASP.NET MVC is a lightweight framework which helps you build rich user interfaces for ASP.NET MVC while enjoying great developer productivity. DokuDB: Visio AddIn to document different versions of a databaseDtsConfig Explorer: This project is a windows froms application that helps explore a SSIS dtsconfig file with an easy wayEveryDNS Service: Windows service to automatically send your current IP address to everydns.net for dynamic domains. Automatically monitors and sends IP address changes without having to be logged in. The project is built in C# targeting the .NET 4.0 framework.EvoSim - Evolution Simulation: EvoSim is a pet project to learn aspects of MVVM, WPF/Silverlight, and Parallel Processing features of .NET 4. The goal is to simulate a world filled with creatures that move, eat, reproduce, and die according to Darwinian evolutionary principles. It is tile and turn based.EZStorage: A storage library for XNA based on EasyStorage but abstracting in an XML based file list for each folder, allowing file listings on all folders and details like file creation dates which are no longer possible in XNA 4.0ForeverBell's Snake: A snake game written in VB.NET.Glauca Browser: This is a browser with a webkit core inside.Grauers SharePoint 2010 Custom MasterPage Feature: This is a SharePoint 2010 Custom MastePage feature. Custom Master and custom CSS Blog post about the project: http://www.grauers.net/archive/2011/02/07/build-a-sharepoint-2010-custom-mastepage-with-visual-studio-2010.aspxHamming Code Sample: HamCode demonstrate how the hamming code work, result of coded and decoded data. Shows the benefits of hamming method/codeHydroDesktop Mercurial Test: This is a trial version of the HydroDesktop project (hydrodesktop.codeplex.com) running on Mercurial source code repository. We first want to test whether the data update/download is happening fine before switching the official HydroDesktop website to the new system.LateBindingApi: Creates .Net Proxy Components from COM Type Libraries.Middlesex County College Library Wireless Auto Login: The Middlesex County College Library Wireless Auto Login automatically logs a computer in to the Middlesex County College (Edison, NJ) Library's WifiMobility: Mobility is a small program that reads from a text file. The text file includes everything about the program, right down to that cute little bunny on your desktop! Try Mobility today!OpenMFC: OpenMFC is opensource version of MFC for using with C/C++ compiler without MFC.Orchard Content Sharing: This Orchard module adds content sharing functionality via integration with AddThis.com sharing service.Orchard Wunder Weather Widget: This project is used to maintain the source code for the Wunder Weather widget in the Orchard gallery.Professional Audio Recorder: Professional Audio Recorder is a Audio Recorder for Windows Phone 7Python Node Info for Umbraco: Designed to assist Umbraco macro authors who are writing their macros in Python. Provides a helper macro that, when inserted into a page, will enable the display of an info panel showing the page node properties as represented in Python.Softina.Graphs: Softina.Graphs is a graph managment and algorithm utility. It includes a set of libraries to work with graph processing. It is written using .net framework with c# language and MS Visual Studio 2008. Client applications is created using devexpress components.spangesharp: Application to help people learn c#Visual Studio Private Extension Gallery: Add a new tab in the Visual Studio extension manager to manage private extensions.WCF Home Framework: Home Framework is a service-oriented framework able to facilitate deploy and management of wcf services in a mid-size scenario project.Windows Phone 7 Video Player: This project contains all the source of an application for Windows Phone 7 to consume an RSS Media exposed by our Smooth Streaming Video Player plugin for WordPress (http://smooth.codeplex.com).WOL Shopping List: This is a shoppingList version of WOL's NearMeWP7RSSReader: Updated RSSReader project for Windows Phone 7 using the RTM tools with the October 2010 update.Xen (XNA Extended) Framework: The Xen Framework is a set of libraries that provides and extends XNA 4.0 functionality to make game development easier and faster while producing clean, maintainable code. Xen frees you up to spend more time building your game.

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  • Should I suppress CA1062: Validate arguments of public methods?

    - by brickner
    I've recently upgraded my project to Visual Studio 2010 from Visual Studio 2008. In Visual Studio 2008, this Code Analysis rule doesn't exist. Now I'm not sure if I should use this rule or not. I'm building an open source library so it seems important to keep people safe from doing mistakes. However, if all I'm going to do is throw ArgumentNullException when the parameter is null, it seems like writing useless code since ArgumentNullException will be thrown even if I won't write that code. Should I remove that rule or fix the violations?

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  • 10 Essential Tools for building ASP.NET Websites

    - by Stephen Walther
    I recently put together a simple public website created with ASP.NET for my company at Superexpert.com. I was surprised by the number of free tools that I ended up using to put together the website. Therefore, I thought it would be interesting to create a list of essential tools for building ASP.NET websites. These tools work equally well with both ASP.NET Web Forms and ASP.NET MVC. Performance Tools After reading Steve Souders two (very excellent) books on front-end website performance High Performance Web Sites and Even Faster Web Sites, I have been super sensitive to front-end website performance. According to Souders’ Performance Golden Rule: “Optimize front-end performance first, that's where 80% or more of the end-user response time is spent” You can use the tools below to reduce the size of the images, JavaScript files, and CSS files used by an ASP.NET application. 1. Sprite and Image Optimization Framework CSS sprites were first described in an article written for A List Apart entitled CSS sprites: Image Slicing’s Kiss of Death. When you use sprites, you combine multiple images used by a website into a single image. Next, you use CSS trickery to display particular sub-images from the combined image in a webpage. The primary advantage of sprites is that they reduce the number of requests required to display a webpage. Requesting a single large image is faster than requesting multiple small images. In general, the more resources – images, JavaScript files, CSS files – that must be moved across the wire, the slower your website. However, most people avoid using sprites because they require a lot of work. You need to combine all of the images and write just the right CSS rules to display the sub-images. The Microsoft Sprite and Image Optimization Framework enables you to avoid all of this work. The framework combines the images for you automatically. Furthermore, the framework includes an ASP.NET Web Forms control and an ASP.NET MVC helper that makes it easy to display the sub-images. You can download the Sprite and Image Optimization Framework from CodePlex at http://aspnet.codeplex.com/releases/view/50869. The Sprite and Image Optimization Framework was written by Morgan McClean who worked in the office next to mine at Microsoft. Morgan was a scary smart Intern from Canada and we discussed the Framework while he was building it (I was really excited to learn that he was working on it). Morgan added some great advanced features to this framework. For example, the Sprite and Image Optimization Framework supports something called image inlining. When you use image inlining, the actual image is stored in the CSS file. Here’s an example of what image inlining looks like: .Home_StephenWalther_small-jpg { width:75px; height:100px; background: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAEsAAABkCAIAAABB1lpeAAAAB GdBTUEAALGOfPtRkwAAACBjSFJNAACHDwAAjA8AAP1SAACBQAAAfXkAAOmLAAA85QAAGcxzPIV3AAAKL s+zNfREAAAAASUVORK5CYII=) no-repeat 0% 0%; } The actual image (in this case a picture of me that is displayed on the home page of the Superexpert.com website) is stored in the CSS file. If you visit the Superexpert.com website then very few separate images are downloaded. For example, all of the images with a red border in the screenshot below take advantage of CSS sprites: Unfortunately, there are some significant Gotchas that you need to be aware of when using the Sprite and Image Optimization Framework. There are workarounds for these Gotchas. I plan to write about these Gotchas and workarounds in a future blog entry. 2. Microsoft Ajax Minifier Whenever possible you should combine, minify, compress, and cache with a far future header all of your JavaScript and CSS files. The Microsoft Ajax Minifier makes it easy to minify JavaScript and CSS files. Don’t confuse minification and compression. You need to do both. According to Souders, you can reduce the size of a JavaScript file by an additional 20% (on average) by minifying a JavaScript file after you compress the file. When you minify a JavaScript or CSS file, you use various tricks to reduce the size of the file before you compress the file. For example, you can minify a JavaScript file by replacing long JavaScript variables names with short variables names and removing unnecessary white space and comments. You can minify a CSS file by doing such things as replacing long color names such as #ffffff with shorter equivalents such as #fff. The Microsoft Ajax Minifier was created by Microsoft employee Ron Logan. Internally, this tool was being used by several large Microsoft websites. We also used the tool heavily on the ASP.NET team. I convinced Ron to publish the tool on CodePlex so that everyone in the world could take advantage of it. You can download the tool from the ASP.NET Ajax website and read documentation for the tool here. I created the installer for the Microsoft Ajax Minifier. When creating the installer, I also created a Visual Studio build task to make it easy to minify all of your JavaScript and CSS files whenever you do a build within Visual Studio automatically. Read the Ajax Minifier Quick Start to learn how to configure the build task. 3. ySlow The ySlow tool is a free add-on for Firefox created by Yahoo that enables you to test the front-end of your website. For example, here are the current test results for the Superexpert.com website: The Superexpert.com website has an overall score of B (not perfect but not bad). The ySlow tool is not perfect. For example, the Superexpert.com website received a failing grade of F for not using a Content Delivery Network even though the website using the Microsoft Ajax Content Delivery Network for JavaScript files such as jQuery. Uptime After publishing a website live to the world, you want to ensure that the website does not encounter any issues and that it stays live. I use the following tools to monitor the Superexpert.com website now that it is live. 4. ELMAH ELMAH stands for Error Logging Modules and Handlers for ASP.NET. ELMAH enables you to record any errors that happen at your website so you can review them in the future. You can download ELMAH for free from the ELMAH project website. ELMAH works great with both ASP.NET Web Forms and ASP.NET MVC. You can configure ELMAH to store errors in a number of different stores including XML files, the Event Log, an Access database, a SQL database, an Oracle database, or in computer RAM. You also can configure ELMAH to email error messages to you when they happen. By default, you can access ELMAH by requesting the elmah.axd page from a website with ELMAH installed. Here’s what the elmah page looks like from the Superexpert.com website (this page is password-protected because secret information can be revealed in an error message): If you click on a particular error message, you can view the original Yellow Screen ASP.NET error message (even when the error message was never displayed to the actual user). I installed ELMAH by taking advantage of the new package manager for ASP.NET named NuGet (originally named NuPack). You can read the details about NuGet in the following blog entry by Scott Guthrie. You can download NuGet from CodePlex. 5. Pingdom I use Pingdom to verify that the Superexpert.com website is always up. You can sign up for Pingdom by visiting Pingdom.com. You can use Pingdom to monitor a single website for free. At the Pingdom website, you configure the frequency that your website gets pinged. I verify that the Superexpert.com website is up every 5 minutes. I have the Pingdom service verify that it can retrieve the string “Contact Us” from the website homepage. If your website goes down, you can configure Pingdom so that it sends an email, Twitter, SMS, or iPhone alert. I use the Pingdom iPhone app which looks like this: 6. Host Tracker If your website does go down then you need some way of determining whether it is a problem with your local network or if your website is down for everyone. I use a website named Host-Tracker.com to check how badly a website is down. Here’s what the Host-Tracker website displays for the Superexpert.com website when the website can be successfully pinged from everywhere in the world: Notice that Host-Tracker pinged the Superexpert.com website from 68 locations including Roubaix, France and Scranton, PA. Debugging I mean debugging in the broadest possible sense. I use the following tools when building a website to verify that I have not made a mistake. 7. HTML Spell Checker Why doesn’t Visual Studio have a built-in spell checker? Don’t know – I’ve always found this mysterious. Fortunately, however, a former member of the ASP.NET team wrote a free spell checker that you can use with your ASP.NET pages. I find a spell checker indispensible. It is easy to delude yourself that you are capable of perfect spelling. I’m always super embarrassed when I actually run the spell checking tool and discover all of my spelling mistakes. The fastest way to add the HTML Spell Checker extension to Visual Studio is to select the menu option Tools, Extension Manager within Visual Studio. Click on Online Gallery and search for HTML Spell Checker: 8. IIS SEO Toolkit If people cannot find your website through Google then you should not even bother to create it. Microsoft has a great extension for IIS named the IIS Search Engine Optimization Toolkit that you can use to identify issue with your website that would hurt its page rank. You also can use this tool to quickly create a sitemap for your website that you can submit to Google or Bing. You can even generate the sitemap for an ASP.NET MVC website. Here’s what the report overview for the Superexpert.com website looks like: Notice that the Sueprexpert.com website had plenty of violations. For example, there are 65 cases in which a page has a broken hyperlink. You can drill into these violations to identity the exact page and location where these violations occur. 9. LinqPad If your ASP.NET website accesses a database then you should be using LINQ to Entities with the Entity Framework. Using LINQ involves some magic. LINQ queries written in C# get converted into SQL queries for you. If you are not careful about how you write your LINQ queries, you could unintentionally build a really badly performing website. LinqPad is a free tool that enables you to experiment with your LINQ queries. It even works with Microsoft SQL CE 4 and Azure. You can use LinqPad to execute a LINQ to Entities query and see the results. You also can use it to see the resulting SQL that gets executed against the database: 10. .NET Reflector I use .NET Reflector daily. The .NET Reflector tool enables you to take any assembly and disassemble the assembly into C# or VB.NET code. You can use .NET Reflector to see the “Source Code” of an assembly even when you do not have the actual source code. You can download a free version of .NET Reflector from the Redgate website. I use .NET Reflector primarily to help me understand what code is doing internally. For example, I used .NET Reflector with the Sprite and Image Optimization Framework to better understand how the MVC Image helper works. Here’s part of the disassembled code from the Image helper class: Summary In this blog entry, I’ve discussed several of the tools that I used to create the Superexpert.com website. These are tools that I use to improve the performance, improve the SEO, verify the uptime, or debug the Superexpert.com website. All of the tools discussed in this blog entry are free. Furthermore, all of these tools work with both ASP.NET Web Forms and ASP.NET MVC. Let me know if there are any tools that you use daily when building ASP.NET websites.

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  • Entity Framework inheritance: TPT, TPH or none?

    - by silverfighter
    Hi, I am currently reading about the possibility about using inheritance with Entity Framework. Sometimes I use a approch to type data records and I am not sure if I would use TPT or TPH or none... For example... I have a ecommerce shop which adds shipping, billing, and delivery address I have a address table: RecordID AddressTypeID Street ZipCode City Country and a table AddressType RecordID AddressTypeDescription The table design differs to the gerneral design when people show off TPT or TPH... Does it make sense to think about inheritance an when having a approach like this.. I hope it makes sense... Thanks for any help...

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  • Vb.Net web browser control not firing document complete with AJAX web site.

    - by ajl
    The VB.Net desktop app uses the IE browser control to navigate the web. When a normal page loads the document_complete event fires and I can read the resulting page and go from there. The issue I am having is that the page I am driving is written with AJAX, so the document complete event never fires. Furthermore, when you view the source of the page after it loaded a new portion via AJAX, it hasn't change. How are people handling this? What are my options?

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  • Removing Left Recursion in ANTLR

    - by prosseek
    As is explained in http://stackoverflow.com/questions/2652060/removing-left-recursion , there are two ways to remove the left recursion. Modify the original grammar to remove the left recursion using some procedure Write the grammar originally not to have the left recursion What people normally use for removing (not having) the left recursion with ANTLR? I've used flex/bison for parser, but I need to use ANTLR. The only thing I'm concerned about using ANTLR (or LL parser in genearal) is left recursion removal. In practical sense, how serious of removing left recursion in ANTLR? Is this a showstopper in using ANTLR? Or, nobody cares about it in ANTLR community? I like the idea of AST generation of ANTLR. In terms of getting AST quick and easy way, which method (out of the 2 removing left recursion methods) is preferable?

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  • Ipad/Iphone UIActionSheet

    - by SteveU
    Hi All, Ive only posted on here a couple of times and people have been very quick and very helpful when responding so thanks. Im trying to use the UIActionsheet element in my Ipad application. But just to confuse matters im using Cocos2d aswell. But here is my problem. If coding the actionsheet with out cocos2d you would use the following code. [actionSheet showInView:self.view]; However because im using cocos2d and there is no views as such the only thing i can think of to reference is the window.. But this is located in the appdelegate class. ive tried [actionSheet showInView:self.Window]; and i get errors any help?

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  • Why does select SCOPE_IDENTITY() return a decimal instead of an integer?

    - by Earlz
    So I have a table with an identity column as the primary key, so it is an integer. So, why does SCOPE_IDENTITY() always return a decimal value instead of an int to my C# application? This is really annoying since decimal values will not implicitly convert to integers in C#, which means I now have to rewrite a bunch of stuff and have a lot of helper methods because I use SQL Server and Postgres, which Postgres does return an integer for the equivalent function.. Why does SCOPE_IDENTITY() not just return a plain integer? Are there people out there that commonly use decimal/non-identity values for primary keys?

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  • Just a general THANK YOU to EVERYONE. [closed]

    - by ajax81
    Hi All, I really just wanted to thank everybody that participates in the stackoverflow community. On more than one occasion, your minds have saved me from soul-eating project managers and career-ending deadlines. The commendable awareness exhibited by contributors that their answers are studied/used as learning material by millions of developers all over the world has created a regulated trust that seemingly keeps the nonsense (and egos) at the bottom of the barrel and out of the way. As an up-and-coming developer with so much to learn, I am grateful for each and every one of their patient contributions. I wish I could come up with a catchy/funny sign-off that makes everybody feel good, but I lack the funny bone that so many of the people on this site seem to have been born with. Instead, I can only leave my gratitude and a promise that as long as the community stays this great, I'll stay an avid reader...and one day be experienced enough to carry the torch of contribution. Sincerely, Daniel the Intern

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  • Visual C# 2010 MSVCR100.dll missing when opening a project...tried EVERYTHING!

    - by dlopeztt
    I installed Visual C# 2010 Beta 2 and I get this error every time I open a project: 'This application has failed to start because MSVCR100.dll was not found. Reinstalling the application may fix the problem' I uninstalled every VC runtime, .NET framework, C# on this computer. Then reinstalled Visual C# 2010 and the install went smoothly. Then I ran Microsoft Update. Still the same problem when I open a project. The project was created with VC# 2008. I'm running Windows 7 64-bit. Any idea how to fix this? I could only find people with the same problem while trying to Uninstall VS2010 and use a previous version.

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  • How to calculate an angle from three points?

    - by HelloMoon
    Lets say you have this: P1 = (x=2, y=50) P2 = (x=9, y=40) P3 = (x=5, y=20) Assume that P1 is the center point of a circle. It is always the same. I want the angle that is made up by P2 and P3, or in other words the angle that is next to P1. The inner angle to be precise. It will be always a sharp angle, so less than -90 degrees. I thought: Man, that's simplest geometry maths. But I looked for a formula for like 6 hours now and people talk about most complicated NASA stuff like arcos and vector scalar product stuff. My head feels like in a fridge. Some math gurus here that think this is a simple problem? I think the programing language doesn't matter here but for those who think it does: java and objective-c. need that for both. haven't tagged it for these, though.

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  • Merge FDF data into a PDF file using PHP

    - by James
    Is it possible to merge FDF data with a PDF file using PHP alone? Or is there no option but to use a 3rd party command line tool to achieve this? If that is the case can someone point me in the direction of one? I am currently outputting the FDF file to the browser in the hope that it will redirect the user to the filled in PDF but for some people that is not the case. The FDF contents is being output to the screen, even though I am using header('Content-type: application/vnd.fdf');

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  • CSRF (Cross-site request forgery) attack example and prevention in PHP

    - by Saif Bechan
    I have an website where people can place a vote like this: http://mysite.com/vote/25 This will place a vote on item 25. I want to only make this available for registered users, and only if they want to do this. Now I know when someone is busy on the website, and someone gives them a link like this: http://mysite.com/vote/30 then the vote will be places for him on the item without him wanting to do this. I have read the explanation on the OWASP website, but i don't really understand it Is this an example of CSFR, and how can I prevent this. The best thing i can think off is adding something to the link like a hash. But this will be quite irritating to put something on the end of all the links. Is there no other way of doing this. Another thing can someone maybe give me some other example of this, because the website seems fairly fugue to me.

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  • Installing PHPUnit via PEAR

    - by Ondrej Slinták
    I have problems installing PHPUnit 3.4.6 via PEAR 1.9.0. After I discover channel pear.phpunit.de and try to use one of following commands: pear install phpunit/PHPUnit pear install --alldeps phpunit/PHPUnit pear install --onlyreqdeps phpunit/PHPUnit it fails, giving me following error: No releases available for package "pear.phpunit.de/PHPUnit" install failed I found several threads from people with the same problem, but upgrading PEAR to the newest version usually worked for them. Also there seems to be close to no tutorials for installing PHPUnit for Windows. EDIT: I've also tried to change prefered_state to beta; didn't help. I've also tried to get list of all available packages: pear remote-list -c phpunit It gives me another error: Cannot download non-http URL "/c/categories.xml"

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  • Running IE6, IE7, and IE8 on the same machine

    - by Alessandro Vernet
    Like everyone else ;), I need to test my code on IE6 and IE7. Now IE8 has some great tools for developer, which I'd like to use. I'd also like to start testing my code with IE8, as it will soon be released. The question is: how to run IE6, IE7, and IE8 on the same machine. So far with IE6 and IE7 I've been using Multiple IE. But people have reported (see comments on the page linked in the previous sentence) issue with IE6 after installing IE8. Those errors are related to focus in form fields. Running IE7 wouldn't matter so much as IE8 can use the IE7 rendering engine, but we still need IE6. Any recommendation on how to IE6, IE7, and IE8 on the same machine?

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  • Python script repeated auto start up.

    - by Ali
    I am designing a python web app, where people can have an email sent to them on a particular day. So a user puts in his emai and date in a form and it gets stored in my database. My script would then search through the database looking for all records of todays date, retrive the email, sends them out and deletes the entry from the table. Is it possible to have a setup, where the script starts up automatically at a give time, say 1 pm everyday, sends out the email and then quits? If I have a continuously running script, i might go over the CPU limit of my shared web hosting. Or is the effect negligible? Ali

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  • How to turn off particular monitor in C#?

    - by Boris
    OK, I know there are quite a few posts on this topic. However, none of them provide the solution to my issue: I don't want just to turn off my monitor(s), I wish my code to turn off a specific monitor. The URL the most people refer to, http://fci-h.blogspot.com/2007/03/turn-off-your-monitor-via-code-c.html, doesn't help here, as it turns off all the displays. So, I have my laptop screen and an additional external monitor. While I'm watching movies, I switch the display to the external monitor and my laptop screen goes black, however, it's still on and glowing in the dark. I wish to turn it off. Could anyone help please? Thanks.

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  • ASP.NET MVC and mixed mode authentication

    - by Alan T
    Hi All I have a scenario whereby I require users to be able to authenticate against an ASP.NET MVC web application using either Windows authentication or Forms authentication. If the user is on the internal network they will use Windows authentication and if they are connecting externally they will use Forms authentication. I’ve seen quite a few people asking the question how do I configure an ASP.NET MVC web application for this, but I haven’t found a complete explanation. Please can someone provide a detailed explanation, with code examples, on how this would be done? Thanks. Alan T

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  • XML: content is not allowed in trailing section

    - by Capsud
    I'm getting these errors Multiple annotations found at this line: - error: Error parsing XML: not well-formed (invalid token) - Content is not allowed in trailing section. on this XML file... <selector xmlns:android="http://schemas.android.com/apk/res/android"> <item android:state_enabled="false" android:drawable="@drawable/btn_red" /> <item android:state_pressed="true" android:state_enabled="true" android:drawable="@drawable/btn_orange" /> <item android:state_focused="true" android:state_enabled="true" android:drawable="@drawable/btn_orange" /> <item android:state_enabled="true" android:drawable="@drawable/btn_black" /> </selector> Probably quite simple for you people who know XML. Any idea?

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  • Rails Catch All Route URL Helpers?

    - by viatropos
    If I have a catch-all-route like this: match '*request_path' => "pages#show", :as => :page ...and the pages can be arbitrarily nested, how do I make it so I can use the url helper methods? If I have a page structure like this: /about /about/people /about/story /about/story/in-depth Then I want to be able to write page_path(@page) and get /about/story/in-depth for the hypothetical "In Depth Story" page. But instead I'm just getting /in-depth. If I override Page#to_param, and do something like this: def to_param result = "" if parent result << parent.to_param result << "/" end result << super end ... it returns an encoded string like this: /about%2Fstory%2Fin-depth Is there a way to make this work?

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  • iPhone: Failed to launch simulated application: Unknown error.

    - by Schubert
    This is a new iPhone project, only 1 target (different from this question) On build we get: Failed to launch simulated application: Unknown error. The google again gives us nothing, lots of people have encountered this and there are lots of crazy ideas to try "oh clean the build", "clear the cache", "twiddle this flag" and none of them work and work consistently. We can reproduce this on two different machines with SDK 2.2.1 and 3.0 beta. Not the install on the machines since other iphone projects work just fine so we believe it has something to do with the config of this particular project but after combing through the config twice we can't spot the problem. Vanna, I'd like to buy a clue for $200 please. Tried: XCode menu-Clear cache Tried: clean all targets Tried: rm -rf ~/Library/Application\ Support/iPhone\ Simulator

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  • eBooks on iPad vs. Kindle: More Debate than Smackdown

    - by andrewbrust
    When the iPad was presented at its San Francisco launch event on January 28th, Steve Jobs spent a significant amount of time explaining how well the device would serve as an eBook reader. He showed the iBooks reader application and iBookstore and laid down the gauntlet before Amazon and its beloved Kindle device. Almost immediately afterwards, criticism came rushing forth that the iPad could never beat the Kindle for book reading. The curious part of that criticism is that virtually no one offering it had actually used the iPad yet. A few weeks later, on April 3rd, the iPad was released for sale in the United States. I bought one on that day and in the few additional weeks that have elapsed, I’ve given quite a workout to most of its capabilities, including its eBook features. I’ve also spent some time with the Kindle, albeit a first-generation model, to see how it actually compares to the iPad. I had some expectations going in, but I came away with conclusions about each device that were more scenario-based than absolute. I present my findings to you here.   Vital Statistics Let’s start with an inventory of each device’s underlying technology. The iPad has a color, backlit LCD screen and an on-screen keyboard. It has a battery which, on a full charge, lasts anywhere from 6-10 hours. The Kindle offers a monochrome, reflective E Ink display, a physical keyboard and a battery that on my first gen loaner unit can go up to a week between charges (Amazon claims the battery on the Kindle 2 can last up to 2 weeks on a single charge). The Kindle connects to Amazon’s Kindle Store using a 3G modem (the technology and network vary depending on the model) that incurs no airtime service charges whatsoever. The iPad units that are on-sale today work over WiFi only. 3G-equipped models will be on sale shortly and will command a $130 premium over their WiFi-only counterparts. 3G service on the iPad, in the U.S. from AT&T, will be fee-based, with a 250MB plan at $14.99 per month and an unlimited plan at $29.99. No contract is required for 3G service. All these tech specs aside, I think a more useful observation is that the iPad is a multi-purpose Internet-connected entertainment device, while the Kindle is a dedicated reading device. The question is whether those differences in design and intended use create a clear-cut winner for reading electronic publications. Let’s take a look at each device, in isolation, now.   Kindle To me, what’s most innovative about the Kindle is its E Ink display. E Ink really looks like ink on a sheet of paper. It requires no backlight, it’s fully visible in direct sunlight and it causes almost none of the eyestrain that LCD-based computer display technology (like that used on the iPad) does. It’s really versatile in an all-around way. Forgive me if this sounds precious, but reading on it is really a joy. In fact, it’s a genuinely relaxing experience. Through the Kindle Store, Amazon allows users to download books (including audio books), magazines, newspapers and blog feeds. Books and magazines can be purchased either on a single-issue basis or as an annual subscription. Books, of course, are purchased singly. Oddly, blogs are not free, but instead carry a monthly subscription fee, typically $1.99. To me this is ludicrous, but I suppose the free 3G service is partially to blame. Books and magazine issues download quickly. Magazine and blog subscriptions cause new issues or posts to be pushed to your device on an automated basis. Available blogs include 9000-odd feeds that Amazon offers on the Kindle Store; unless I missed something, arbitrary RSS feeds are not supported (though there are third party workarounds to this limitation). The shopping experience is integrated well, has an huge selection, and offers certain graphical perks. For example, magazine and newspaper logos are displayed in menus, and book cover thumbnails appear as well. A simple search mechanism is provided and text entry through the physical keyboard is relatively painless. It’s very easy and straightforward to enter the store, find something you like and start reading it quickly. If you know what you’re looking for, it’s even faster. Given Kindle’s high portability, very reliable battery, instant-on capability and highly integrated content acquisition, it makes reading on whim, and in random spurts of downtime, very attractive. The Kindle’s home screen lists all of your publications, and easily lets you select one, then start reading it. Once opened, publications display in crisp, attractive text that is adjustable in size. “Turning” pages is achieved through buttons dedicated to the task. Notes can be recorded, bookmarks can be saved and pages can be saved as clippings. I am not an avid book reader, and yet I found the Kindle made it really fun, convenient and soothing to read. There’s something about the easy access to the material and the simplicity of the display that makes the Kindle seduce you into chilling out and reading page after page. On the other hand, the Kindle has an awkward navigation interface. While menus are displayed clearly on the screen, the method of selecting menu items is tricky: alongside the right-hand edge of the main display is a thin column that acts as a second display. It has a white background, and a scrollable silver cursor that is moved up or down through the use of the device’s scrollwheel. Picking a menu item on the main display involves scrolling the silver cursor to a position parallel to that menu item and pushing the scrollwheel in. This navigation technique creates a disconnect, literally. You don’t really click on a selection so much as you gesture toward it. I got used to this technique quickly, but I didn’t love it. It definitely created a kind of anxiety in me, making me feel the need to speed through menus and get to my destination document quickly. Once there, I could calm down and relax. Books are great on the Kindle. Magazines and newspapers much less so. I found the rendering of photographs, and even illustrations, to be unacceptably crude. For this reason, I expect that reading textbooks on the Kindle may leave students wanting. I found that the original flow and layout of any publication was sacrificed on the Kindle. In effect, browsing a magazine or newspaper was almost impossible. Reading the text of individual articles was enjoyable, but having to read this way made the whole experience much more “a la carte” than cohesive and thematic between articles. I imagine that for academic journals this is ideal, but for consumer publications it imposes a stripped-down, low-fidelity experience that evokes a sense of deprivation. In general, the Kindle is great for reading text. For just about anything else, especially activity that involves exploratory browsing, meandering and short-attention-span reading, it presents a real barrier to entry and adoption. Avid book readers will enjoy the Kindle (if they’re not already). It’s a great device for losing oneself in a book over long sittings. Multitaskers who are more interested in periodicals, be they online or off, will like it much less, as they will find compromise, and even sacrifice, to be palpable.   iPad The iPad is a very different device from the Kindle. While the Kindle is oriented to pages of text, the iPad orbits around applications and their interfaces. Be it the pinch and zoom experience in the browser, the rich media features that augment content on news and weather sites, or the ability to interact with social networking services like Twitter, the iPad is versatile. While it shares a slate-like form factor with the Kindle, it’s effectively an elegant personal computer. One of its many features is the iBook application and integration of the iBookstore. But it’s a multi-purpose device. That turns out to be good and bad, depending on what you’re reading. The iBookstore is great for browsing. It’s color, rich animation-laden user interface make it possible to shop for books, rather than merely search and acquire them. Unfortunately, its selection is rather sparse at the moment. If you’re looking for a New York Times bestseller, or other popular titles, you should be OK. If you want to read something more specialized, it’s much harder. Unlike the awkward navigation interface of the Kindle, the iPad offers a nearly flawless touch-screen interface that seduces the user into tinkering and kibitzing every bit as much as the Kindle lulls you into a deep, concentrated read. It’s a dynamic and interactive device, whereas the Kindle is static and passive. The iBook reader is slick and fun. Use the iPad in landscape mode and you can read the book in 2-up (left/right 2-page) display; use it in portrait mode and you can read one page at a time. Rather than clicking a hardware button to turn pages, you simply drag and wipe from right-to-left to flip the single or right-hand page. The page actually travels through an animated path as it would in a physical book. The intuitiveness of the interface is uncanny. The reader also accommodates saving of bookmarks, searching of the text, and the ability to highlight a word and look it up in a dictionary. Pages display brightly and clearly. They’re easy to read. But the backlight and the glare made me less comfortable than I was with the Kindle. The knowledge that completely different applications (including the Web and email and Twitter) were just a few taps away made me antsy and very tempted to task-switch. The knowledge that battery life is an issue created subtle discomfort. If the Kindle makes you feel like you’re in a library reading room, then the iPad makes you feel, at best, like you’re under fluorescent lights at a Barnes and Noble or Borders store. If you’re lucky, you’d be on a couch or at a reading table in the store, but you might also be standing up, in the aisles. Clearly, I didn’t find this conducive to focused and sustained reading. But that may have more to do with my own tendency to read periodicals far more than books, and my neurotic . And, truth be known, the book reading experience, when not explicitly compared to Kindle’s, was still pleasant. It is also important to point out that Kindle Store-sourced books can be read on the iPad through a Kindle reader application, from Amazon, specific to the device. This offered a less rich experience than the iBooks reader, but it was completely adequate. Despite the Kindle brand of the reader, however, it offered little in terms of simulating the reading experience on its namesake device. When it comes to periodicals, the iPad wins hands down. Magazines, even if merely scanned images of their print editions, read on the iPad in a way that felt similar to reading hard copy. The full color display, touch navigation and even the ability to render advertisements in their full glory makes the iPad a great way to read through any piece of work that is measured in pages, rather than chapters. There are many ways to get magazines and newspapers onto the iPad, including the Zinio reader, and publication-specific applications like the Wall Street Journal’s and Popular Science’s. The New York Times’ free Editors’ Choice application offers a Times Reader-like interface to a subset of the Gray Lady’s daily content. The completely Web-based but iPad-optimized Times Skimmer site (at www.nytimes.com/timesskimmer) works well too. Even conventional Web sites themselves can be read much like magazines, given the iPad’s ability to zoom in on the text and crop out advertisements on the margins. While the Kindle does have an experimental Web browser, it reminded me a lot of early mobile phone browsers, only in a larger size. For text-heavy sites with simple layout, it works fine. For just about anything else, it becomes more trouble than it’s worth. And given the way magazine articles make me think of things I want to look up online, I think that’s a real liability for the Kindle.   Summing Up What I came to realize is that the Kindle isn’t so much a computer or even an Internet device as it is a printer. While it doesn’t use physical paper, it still renders its content a page at a time, just like a laser printer does, and its output appears strikingly similar. You can read the rendered text, but you can’t interact with it in any way. That’s why the navigation requires a separate cursor display area. And because of the page-oriented rendering behavior, turning pages causes a flash on the display and requires a sometimes long pause before the next page is rendered. The good side of this is that once the page is generated, no battery power is required to display it. That makes for great battery life, optimal viewing under most lighting conditions (as long as there is some light) and low-eyestrain text-centric display of content. The Kindle is highly portable, has an excellent selection in its store and is refreshingly distraction-free. All of this is ideal for reading books. And iPad doesn’t offer any of it. What iPad does offer is versatility, variety, richness and luxury. It’s flush with accoutrements even if it’s low on focused, sustained text display. That makes it inferior to the Kindle for book reading. But that also makes it better than the Kindle for almost everything else. As such, and given that its book reading experience is still decent (even if not superior), I think the iPad will give Kindle a run for its money. True book lovers, and people on a budget, will want the Kindle. People with a robust amount of discretionary income may want both devices. Everyone else who is interested in a slate form factor e-reading device, especially if they also wish to have leisure-friendly Internet access, will likely choose the iPad exclusively. One thing is for sure: iPad has reduced Kindle’s market, and may have shifted its mass market potential to a mere niche play. If Amazon is smart, it will improve its iPad-based Kindle reader app significantly. It can then leverage the iPad channel as a significant market for the Kindle Store. After all, selling the eBooks themselves is what Amazon should care most about.

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  • Code golf: find all anagrams

    - by Charles Ma
    An word is an anagram if the letters in that word can be re-arranged to form a different word. Task: Find all sets of anagrams given a word list Input: a list of words from stdin with each word separated by a new line e.g. A A's AOL AOL's Aachen Aachen's Aaliyah Aaliyah's Aaron Aaron's Abbas Abbasid Abbasid's Output: All sets of anagrams, with each set separated by a separate line Example run: ./anagram < words marcos caroms macros lump's plum's dewar's wader's postman tampons dent tend macho mocha stoker's stroke's hops posh shop chasity scythia ... I have a 149 char perl solution which I'll post as soon as a few more people post :) Have fun!

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