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  • SEO - The Nuts and Bolts

    This article outlines the major variables a successful website owner should take into consideration when attempting to align their website with the algorithms the search engines use to determine a page's overall relevance. These variables include: Keywords (contained within the metatags as well as within the content of the site), regular XML Sitemap creation and periodic submission to the search engines, Domain Name and Age, and finally backlinking or reciprocal linking to a handful of relevant and viable sites.

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  • For SEO, There's No Place Like Home - Or is There?

    Agencies specialising in online marketing solutions set particular stock in their linking strategies. Good inbound and internal links can work wonders for your link profile; let us fill you in on some of the reasons why a good links strategy is valuable to every priority landing page, not just the home page.

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  • Using Your Competitors Well For SEO

    You can use your competitors to get a good rank in SEO. You could count how many backlins they have by using Google's link counter tool ( "link:www.competitorswebsite.com" ). You can find out who is linking to them and then request a link from the that same website to your own.

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  • Ask and You Shall Receive - More Links That Is!

    What do most web site owners or webmasters want? Well, other than bushel baskets full of cash, they want links! Yes, they want LINKS. Lots of inbound links... The more links the better! Sometimes it's easy to overlook the obvious and only think about the complex and complicated methods of linking strategies.

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  • CodePlex Daily Summary for Thursday, November 25, 2010

    CodePlex Daily Summary for Thursday, November 25, 2010Popular ReleasesSQL Monitor: SQL Monitor 1.4: 1.added automatically load sql server instances 2.added friendly wait cursor 3.fixed problem with 4.0 fx 4.added exception handlingDeep Zoom for WPF: First Release: This first release of the Deep Zoom control has the same source code, binaries and demos as the CodeProject article (http://www.codeproject.com/KB/WPF/DeepZoom.aspx).Simple Service Locator: Simple Service Locator v0.12: The Simple Service Locator is an easy-to-use Inversion of Control library that is a complete implementation of the Common Service Locator interface. It solely supports code-based configuration and is an ideal starting point for developers unfamiliar with larger IoC / DI libraries New features in this release Collections that are registered using RegisterAll<T> can now be injected using automatic constructor injection. A new RegisterAll<T>(params T[]) method overload is added that allows ea...Minemapper: Minemapper v0.1.2: Added cave and nether support. Added ability to enter a height (press enter or 'set height' button). Added View menu, moved 'Show Navigation Controls' there. Added View->Background Color menu to change the canvas background color (preference not currently saved). Improved handling of height change (still not perfect, think it can be made faster). Images are now cached in %APPDATA%\Minemapper, organized by world, then direction, then mode (cave, day, night, nether), then skylight, th...BlogEngine.NET: BlogEngine.NET 2.0 RC: This is a Release Candidate version for BlogEngine.NET 2.0. The most current, stable version of BlogEngine.NET is version 1.6. Find out more about the BlogEngine.NET 2.0 RC here. If you want to extend or modify BlogEngine.NET, you should download the source code. To get started, be sure to check out our installation documentation and the installation screencast. If you are upgrading from a previous version, please take a look at the Upgrading to BlogEngine.NET 2.0 instructions. As this ...NodeXL: Network Overview, Discovery and Exploration for Excel: NodeXL Excel Template, version 1.0.1.156: The NodeXL Excel template displays a network graph using edge and vertex lists stored in an Excel 2007 or Excel 2010 workbook. What's NewThis release adds a feature for aggregating the overall metrics in a folder full of NodeXL workbooks, adds geographical coordinates to the Twitter import features, and fixes a memory-related bug. See the Complete NodeXL Release History for details. Please Note: There is a new option in the setup program to install for "Just Me" or "Everyone." Most people...Wii Backup Fusion: Wii Backup Fusion 0.8.2 Beta: New in this release: - Update titles after language change - Tool tips for name/title - Transfer DVD to a specific image file - Download titles from wiitdb.com - Save Settings geometry - Titles and Cover language global in settings - Convert Files (images) to another format - Format WBFS partition - Create WBFS file - WIT path configurable in settings - Save last path in Files/Load - Sort game lists - Save column width - Sequenz of columns changeable - Set indicated columns in settings - Bus...VFPX: FoxBarcode v.0.11: FoxBarcode v.0.11 - Released 2010.11.22 FoxBarcode is a 100% Visual FoxPro class that provides a tool for generating images with different bar code symbologies to be used in VFP forms and reports, or exported to other applications. Its use and distribution is free for all Visual FoxPro Community. Whats is new? Added a third parameter to the BarcodeImage() method Fixed some minor bugs History FoxBarcode v.0.10 - Released 2010.11.19 - 85 Downloads Project page: FoxBarcodeDotNetAge -a lightweight Mvc jQuery CMS: DotNetAge 1.1.0.5: What is new in DotNetAge 1.1.0.5 ?Document Library features and template added. Resolve issues of templates Improving publishing service performance Opml support added. What is new in DotNetAge 1.1 ? D.N.A Core updatesImprove runtime performance , more stabilize. The DNA core objects model added. Personalization features added that allows users create the personal website, manage their resources, store personal data DynamicUIFixed the PageManager could not move page node bug. ...ASP.NET MVC Project Awesome (jQuery Ajax helpers): 1.3.1 and demos: 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 and Pager tested on mozilla, safari, chrome, opera, ie 9b/8/7/6DotSpatial: DotSpatial 11-21-2010: This release introduces the following Fixed bugs related to dispose, which caused issues when reordering layers in the legend Fixed bugs related to assigning categories where NULL values are in the fields New fast-acting resize using a bitmap "prediction" of what the final resize content will look like. ImageData.ReadBlock, ImageData.WriteBlock These allow direct file access for reading or writing a rectangular window. Bitmaps are used for holding the values. Removed the need to stor...LINQ to Twitter: LINQ to Twitter Beta v2.0.16: OAuth, 100% API coverage, streaming, extensibility via Raw Queries, and added documentation.MDownloader: MDownloader-0.15.24.6966: Fixed Updater; Fixed minor bugs;WPF Application Framework (WAF): WPF Application Framework (WAF) 2.0.0.1: Version: 2.0.0.1 (Milestone 1): This release contains the source code of the WPF Application Framework (WAF) and the sample applications. Requirements .NET Framework 4.0 (The package contains a solution file for Visual Studio 2010) The unit test projects require Visual Studio 2010 Professional Remark The sample applications are using Microsoft’s IoC container MEF. However, the WPF Application Framework (WAF) doesn’t force you to use the same IoC container in your application. You can use ...Smith Html Editor: Smith Html Editor V0.75: The first public release.Home Access Plus+: v5.4.4: Version 5.4.4Change Log: Added logic to the My Computer Browsers to allow for users with no home directories (set in ad anyhow) Renamed the My School Computer Enhanced page to My School Computer Extended Edition File Changes: ~/bin/hap.web.dll ~/clientbin/hap.silverlight.xap ~/mycomputersl.aspx.NET Extensions - Extension Methods Library for C# and VB.NET: Release 2011.01: Added new extensions for - object.CountLoopsToNull Added new extensions for DateTime: - DateTime.IsWeekend - DateTime.AddWeeks Added new extensions for string: - string.Repeat - string.IsNumeric - string.ExtractDigits - string.ConcatWith - string.ToGuid - string.ToGuidSave Added new extensions for Exception: - Exception.GetOriginalException Added new extensions for Stream: - Stream.Write (overload) And other new methods ... Release as of dotnetpro 01/2011Prism Training Kit: Prism Training Kit 4.0: Release NotesThis is an updated version of the Prism training Kit that targets Prism 4.0 and added labs for some of the new features of Prism 4.0. This release consists of a Training Kit with Labs on the following topics Modularity Dependency Injection Bootstrapper UI Composition Communication MEF Navigation Note: Take into account that this is a Beta version. If you find any bugs please report them in the Issue Tracker PrerequisitesVisual Studio 2010 Microsoft Word 2...Free language translator and file converter: Free Language Translator 2.2: Starting with version 2.0, the translator encountered a major redesign that uses MEF based plugins and .net 4.0. I've also fixed some bugs and added support for translating subtitles that can show up in video media players. Version 2.1 shows the context menu 'Translate' in Windows Explorer on right click. Version 2.2 has links to start the media file with its associated subtitle. Download the zip file and expand it in a temporary location on your local disk. At a minimum , you should uninstal...Free Silverlight & WPF Chart Control - Visifire: Visifire SL and WPF Charts v3.6.4 Released: Hi, Today we are releasing Visifire 3.6.4 with few bug fixes: * Multi-line Labels were getting clipped while exploding last DataPoint in Funnel and Pyramid chart. * ClosestPlotDistance property in Axis was not behaving as expected. * In DateTime Axis, Chart threw exception on mouse click over PlotArea if there were no DataPoints present in Chart. * ToolTip was not disappearing while changing the DataSource property of the DataSeries at real-time. * Chart threw exception ...New ProjectsAnalysis Services OlapQueryLog: The OlapQueryLog table contains information about MDX queries execution. The OlapQueryLog reports gives meaning to these data. Car Rental System (cs443): Database projectCaronte: Caronte is a simple web service that will work as a proxy that may retrieve files which may be blocked by firewalls.CommunityServer to DotNetNuke Conversion Project: This project is for helping you with the process of converting from CommunityServer to DotNetNuke. Currently it provides SQL Scripts for CS 2.1 to DNN Forum 5.0.0, in the future we might support Blog, Photo and File conversion as well.Deep Zoom for WPF: An implementation of MultiScaleImage (Deep Zoom) for WPF, compatible with Deep Zoom Composer and Zoom.itDevCow: This is a location for all of the community projects that help support DevCow.comDijkstra's Solver: Dijkstra's Solver is a teaching and learning tool designed to allow users to plot out graphs, generate the list of steps required to find the shortest path via Dijkstra's Algorithm, and to illustrate those steps. It is developed using the .NET framework, mainly written in C#.dvilchez-codekatas: my personal codekatasFuture of DynamicDataDisplay: This is project which will contain my changes in DynamicDataDisplay (dynamicdatadisplay.codeplex.com). I will seek for being consistent and compatible with DynamicDataDisplay.GMusicDownloader: ???????Gravatar Plugin: Plugin de C# .NET que permite realizar la conexion a gravatar. * Framework 3.5IORT: Register Inbox and Outbox transactions in small offices, archive a copy for each transaction by scan the papers, search and retrieve these transactions.jHash - URL Hashes have never been easier: jHash allows you to work with the 'location.hash' value in a similar fashion to a server-side query string.MatrixAlgebra: MatrixAlgebra is the library that contains math functions.Mimic StackOverFlow Q&A Site using Silverlight: This project's purpose is to study and learn Silverlight by developing web application mimic StackOverFlow site. In this project, I use following skills : - Silverlight 4.0 - Entity Framework 4.0 (Code First CTP) - WCF ServiceMosaic Desktop: An desktop application to create unique wallpapers for your desktop. A timer lets you recreate a new wallpaper at desired interval from a selection of your photos/images, then sets the newly created image as the current wallpaper.NSurgeon MSIL Manipulation Library: NSurgeon project is based on Mono.Cecil library. The project is composed of the next modules: - SDK - Aspect Oriented Programming - Decompiler - Assemblies decompiler. Supports for MSIL, C#, VB.NET, F# - Immunity - obfuscator - NSurgeon VS.2005-2010 addinPheidippides: Pheidippides Scrypt Enhanced Cryptography for Silverlight 3+: The Scrypt enahnced cryptography library provides additional cryptographic capabilities for Microsoft Silverlight 3+. In this initial release we've added RSA Encryption with support for key sizes from 256-bit to 4096-bit. Stock Data: This library provides APIs to get the stock data such as trade price, the history price data, volume and so on. It can be used to get the real time stock data or the history sotck data. Created by CBString Coder: ?????????????Super Av Anti Virus: Super Av Anti Virus is an open source anti virus with full source codeVassarHTM: This is a research project at Vassar College.Widgy Box: Widgy Box is a new widget system for the everyday user built in WPF using C#.

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  • Virtualization and best hardware sharing scenario for me

    - by azera
    Hello, Following this thread on super user, I now want to start installing all my vm on the hardware. As a remainder, i have a (powerful enough) server on which i want to install 3 OS: there is a debian (general dev testbed purposes), an ipcop (network control/firewall) and a freenas (local network file sharing). I'm wondering which scenario would be the best for me and if I will be able to share the hardware to do what i want; either a - install an hypervisor like the free vmware esx and all three vms in it, or b - install debian, and the other two running inside it with virtual box My need being that: the ipcop should handle all network traffic to the internet, meaning all traffic from my main computer but also all traffic from the other two vm the freenas shares should be accessible from the other two vm and my main computer too i don't really care about the debian access, i only need to access it from my main computer, not the other vms Will I need to install additionnal network cards for each vm or can they all share the same one happily ? (right now I have two, one linking the server to my router [which only ipcop is gonna use] and one linking it to my switch [which i would like all three to use]) As for harddrives, I was going to use 1 harddrive cut in 3 partitions to install all three OSes, then add to that the freenas drives, will it be correct ? Thanks a lot for anyone who can help me, this is kind of a vast area and I'm not sure which way to go at all

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  • Macports install of ack doesn't create correct executable

    - by user1664196
    I am trying to install p5-app-ack port from Mac Ports, but it seems it doesn't create a /opt/local/bin/ack binary at the end: $ sudo port search *app-ack Password: p5-app-ack @1.960.0 (perl) A grep replacement that ignores .svn/CVS/blib directories p5.8-app-ack @1.960.0 (perl) A grep replacement that ignores .svn/CVS/blib directories p5.10-app-ack @1.960.0 (perl) A grep replacement that ignores .svn/CVS/blib directories p5.12-app-ack @1.960.0 (perl) A grep replacement that ignores .svn/CVS/blib directories p5.14-app-ack @1.960.0 (perl) A grep replacement that ignores .svn/CVS/blib directories p5.16-app-ack @1.960.0 (perl) A grep replacement that ignores .svn/CVS/blib directories Found 6 ports. $ perl --version This is perl 5, version 12, subversion 4 (v5.12.4) built for darwin-thread-multi-2level Copyright 1987-2010, Larry Wall Perl may be copied only under the terms of either the Artistic License or the GNU General Public License, which may be found in the Perl 5 source kit. Complete documentation for Perl, including FAQ lists, should be found on this system using "man perl" or "perldoc perl". If you have access to the Internet, point your browser at http://www.perl.org/, the Perl Home Page. $ sudo port install p5-app-ack ---> Computing dependencies for p5-app-ack ---> Cleaning p5-app-ack ---> Updating database of binaries: 100.0% ---> Scanning binaries for linking errors: 35.0% ---> No broken files found. $ $ ls /opt/local/bin/ac* /opt/local/bin/ack-5.12 /opt/local/bin/aclocal /opt/local/bin/aclocal-1.12 /opt/local/bin/activation-client /opt/local/bin/acyclic $ which ack $ ack -bash: ack: command not found Update If I then try to install p5.12-app-ack afterwards, I get $ sudo port install p5.12-app-ack Password: ---> Computing dependencies for p5.12-app-ack ---> Cleaning p5.12-app-ack ---> Scanning binaries for linking errors: 100.0% ---> No broken files found. $

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  • Mac OSX - looking for software for notes, snippets, ideas, etc.

    - by eatloaf
    I have the following requirements: Mobile accessibility: Either a complimentary iphone app to sync with, or DropBox or Google Docs syncing or equivalent so I can use other mobile note applications to edit notes remotely. Minimally some form of markup, but ideally something I can drag and drop images into and do some formatting. Rich Text support is reasonable. Hierarchical organization, AKA outlining. Internal (note to note) linking. I like to cross reference items and thoughts internally and the relationships aren't always hierarchical. These were closest to what I was looking for but, as far as I can tell, suffer from the noted flaws: Mori : No mobile solution. EagleFiler : No item hierarchy. MacJournal : No entry hierarchy. iphone app converts edited entries to plain text. Evernote : No interior linking. No hierarchy. I think I've tried every serious contender and none of them have all four (seemingly simple) requirements. I'm hoping that I'm either missing an existing feature in an app I've tried or that someone knows of something I haven't found it yet.

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  • CakePHP: shortcomings with indirectly associated models

    - by Dan
    I'm having some issues with dealing with indirectly associated models in cakephp. My current model setup is as follows: Deliveries hasOne License License belongsTo Delivery License hasAndBelongsToMany Product (and vice-versa) License hasAndBelongsToMany ProductOption (and vice-versa) I'm trying to save information about ALL of these models inside ONE form. The shortcomings I'm running into are the following: The form helper only seems able to see the field type one level deep. saveAll() only seems able to save records one level deep (for multiple model forms). I'm searching everywhere for the solutions to these issues, but since I'm new to CakePHP, I'm not sure what the newest methods or "correct" methods are for dealing with these issues. Any advice is much appreciated. Thank you all! EDIT: I've posted code to my failed attempt here: http://bin.cakephp.org/saved/58501

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  • Deeplinking using GWT History Token within a Facebook iFrame Canvas

    - by Stevko
    I would like to deep link directly to a GWT app page within a Facebook iFrame Canvas. The first part is simple using GWT's History token with URLs like: http://www.example.com/MyApp/#page1 which would open page1 within my app. Facebook Apps use an application url like: http://apps.facebook.com/myAppName which frames my Canvas Callback URL http://www.example.com/MyApp/ Is there a way to specify a canvas callback url (or bookmark url) which will take the user to a specific page rather than the index page? Why? you may ask. Besides all the benefits of deep links... I want the "Go To Application" url to take users to an index page w/ marketing material (the canvas callback url) I want the "Bookmark URL" to take (likely returning) users to a login page and bypass downloading the marketing content (and that huge SWF file).

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  • Mixing application modules between Silverlight and ASP.NET

    - by jkohlhepp
    Background: I work in a suite of ASP.NET applications that have several different "modules". The applications all share a main menu, so they all link to one-another. The modules are the high-level areas of the application. So, for example, it might be Payments, Orders, Customers, Products, etc. And Payments and Orders are in one app and Products and Customers are in another. Some of these menu links are "deep links", for example it might be a link to a particular page within the Customers module, such as Create New Customer. The issue: We are about to start a project that will add several more modules to this suite, probably as a new .NET application. I'm thinking about doing these new modules in Silverlight (for various reasons that are not material to the question). If I were to do that, I need to make the menu look the same as the menu in ASP.NET, as the users still need to feel like they are inside one "application". My questions: How should I organize the Silverlight project(s) so that I can "deep link" from ASP.NET pages into particular modules in the Silverlight app? What is even the best idea for creating these different Silverlight "modules"? If I had something that would've been a page in ASP.NET (for example - Create Customer), should each one of those be a separate Silverlight app? Or should it be a separate User Control? Or something else? Should I reuse our shared ASP.NET menu, and deep link to different Silverlight "modules" even within the new application? Or should I reimplement the menu in Silverlight for navigation within the app? Are there menu controls for Silverlight that look similar to ASP.NET menus (with flyout submenus in this case)? Could I maybe even share a SiteMap XML file between them? Edit: After looking around a bit more, it seems like PRISM might be the answer for some of my issues. It would allow me to modularize the different chunks of Silverlight that I have. And it would allow me to define a "master page" in Silverlight where I could host the menu. Do I have this right?

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  • webOS style view switching on iPhone app

    - by Taylor Satula
    Hello, I have been working with a iPhone app that I would like to have switch views like the Palm Pre does for multitasking. I know the usual way of switching views by using the black bar at the bottom of the app but the app I am working on does not lend itself to having a big black bar in the way (see attached picture #1). I guess my question is, how do I shrink the current view (Current Location window) and show other views on the sides? (see attached picture #2) Then be able to swipe left and right to view other views. I have no idea how to do this and would be eternally grateful if someone could help me out with this. http://www.threepixeldrift.com/images/deep-storage/webOScardapp1.jpg http://www.threepixeldrift.com/images/deep-storage/webOScardapp2.jpg

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  • C++ Virtual Constructor, without clone()

    - by Julien L.
    I want to perform "deep copies" of an STL container of pointers to polymorphic classes. I know about the Prototype design pattern, implemented by means of the Virtual Ctor Idiom, as explained in the C++ FAQ Lite, Item 20.8. It is simple and straightforward: struct ABC // Abstract Base Class { virtual ~ABC() {} virtual ABC * clone() = 0; }; struct D1 : public ABC { virtual D1 * clone() { return new D1( *this ); } // Covariant Return Type }; A deep copy is then: for( i = 0; i < oldVector.size(); ++i ) newVector.push_back( oldVector[i]->clone() ); Drawbacks As Andrei Alexandrescu states it: The clone() implementation must follow the same pattern in all derived classes; in spite of its repetitive structure, there is no reasonable way to automate defining the clone() member function (beyond macros, that is). Moreover, clients of ABC can possibly do something bad. (I mean, nothing prevents clients to do something bad, so, it will happen.) Better design? My question is: is there another way to make an abstract base class clonable without requiring derived classes to write clone-related code? (Helper class? Templates?) Following is my context. Hopefully, it will help understanding my question. I am designing a class hierarchy to perform operations on a class Image: struct ImgOp { virtual ~ImgOp() {} bool run( Image & ) = 0; }; Image operations are user-defined: clients of the class hierarchy will implement their own classes derived from ImgOp: struct CheckImageSize : public ImgOp { std::size_t w, h; bool run( Image &i ) { return w==i.width() && h==i.height(); } }; struct CheckImageResolution; struct RotateImage; ... Multiple operations can be performed sequentially on an image: bool do_operations( std::vector< ImgOp* > v, Image &i ) { std::for_each( v.begin(), v.end(), /* bind2nd(mem_fun(&ImgOp::run), i ...) don't remember syntax */ ); } int main( ... ) { std::vector< ImgOp* > v; v.push_back( new CheckImageSize ); v.push_back( new CheckImageResolution ); v.push_back( new RotateImage ); Image i; do_operations( v, i ); } If there are multiple images, the set can be split and shared over several threads. To ensure "thread-safety", each thread must have its own copy of all operation objects contained in v -- v becomes a prototype to be deep copied in each thread.

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  • Where I can find DeskUtil documentation/help?

    - by Born To Learn
    Hello all, Where I can find DeskUtil documentation/help? I am trying to build Delphi add-in and I have some troubles with saving/registering/loading the add-in docking form into the active IDE desktop. I am using the DeskUtil methods after reading some examples here and there, but, examples don’t go deep in how these methods work, and in the mechanism of the IDE loading/destroying. Is there any official documentation/help about the DeskUtil or the OpenTools Api? In other words, how and where can developer like me get deep knowledge (not articles or demos) about IDE and OpenTools Api? Thanks for your help.

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  • Closing several android activities simultaneously

    - by teedyay
    In my application you can navigate through several Activities until the Activity stack is quite deep. We'd like a button on every Activity that will take you straight back to the main menu - i.e. pop all Activities from the stack except the first one. I've put the button in a View that I can easily put on every Activity in the application, but I can't figure out how to close several Activities in one fell swoop. (If possible, it would be good if the View could work out how many Activities to close by itself - i.e. detect how deep on the stack its own Activity is.)

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  • How to get multiple copies of a UIView loaded from a nib?

    - by dmaestro12
    I want to use a UIView heirarchy multiple times (the nib object is a template). Unfortunately, UIView does not conform to <NSCopying so [cell.contentView addSubview: [[templEditCellView copy] autorelease]]; does not work. I wasn't surprised, since I want a deep copy of the view heirarchy. Currently the view is a top-level object in the nib it is loaded from. Is there a way to reload a single specified top-level object from the nib? Should I split out the view to a single NIB which can be reloaded on demand? Or is there another way to make a deep copy of a view? Thanks!

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  • Ruby: how to know depth of multidemensional array

    - by hqt
    This is my problem I have met in my assignment. Array A has two elements: array B and array C. Array B has two elements: array D and array E At some point, array X just contains two elements: string a and string b. I don't know how to determine how deep array A is. For example: arrA = [ [ [1,2] ] ] I have tested by: A[0][0][0] == nil which returns false. Moreover, A[0][0]..[0] == nil always returns false. So, I cannot do this way to know how deep array A is.

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  • iPhone: Get value in multi-dimentional array

    - by Nic Hubbard
    I have an array that is many levels deep and I am wondering what is the best way to get one of the child element values that is deep in my array. I assume I need to use a recursive method, but what is the best way to do this? Or is there a faster way to do this? The array comes from an XML Parser that I am using which builds everything into an array like this (using NSLog to show the structure): { children = ( { children = ( { children = ( { children = ( ); data = 12; element = AssetID; } ); data = ""; element = "ns1:GetUserIdByUsernameResponse"; } ); data = ""; element = "SOAP-ENV:Body"; } ); data = ""; element = "SOAP-ENV:Envelope"; } What I would like to get at is the AssetID data, which in this case is 12.

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  • C: using a lot of structs can make a program slow?

    - by nunos
    I am coding a breakout clone. I had one version in which I only had one level deep of structures. This version runs at 70 fps. For more clarity in the code I decided the code should have more abstractions and created more structs. Most of the times I have two two three level deep of structures. This version runs at 30 fps. Since there are some other differences besides the structures, I ask you: Does using a lot of structs in C can slow down the code significantly? Thanks.

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  • :from parameter in active record find not well designed?

    - by potlee
    i got this error: SQLite3::SQLException: no such column: apis.name: SELECT * FROM examples WHERE ("apis"."name" = 'deep') my code Api.find :all, :from => params[:table_name], :conditions => {:name => 'deep' } I need to make a back end rails application which will be used by a silverlight application. one of the requirements is to fetch simple data from the database. i need to be able to query different tables with the same code.(my app has 2000 tables!) i think it does not make sense for rails to put in "apis" in the WHERE clause. is there any speciic reason for this?

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  • Link Error : xxx is already defined in *****.LIB :: What exactly is wrong?

    - by claws
    Problem: I'm trying to use a library named DCMTK which used some other external libraries ( zlib, libtiff, libpng, libxml2, libiconv ). I've downloaded these external libraries (*.LIB & *.h files ) from the same website. Now, when I compile the DCMTK library I'm getting link errors (793 errors) like this: Error 2 error LNK2005: __encode_pointer already defined in MSVCRTD.lib(MSVCR90D.dll) LIBCMTD.lib dcmmkdir Error 3 error LNK2005: __decode_pointer already defined in MSVCRTD.lib(MSVCR90D.dll) LIBCMTD.lib dcmmkdir Error 4 error LNK2005: __CrtSetCheckCount already defined in MSVCRTD.lib(MSVCR90D.dll) LIBCMTD.lib dcmmkdir Error 5 error LNK2005: __invoke_watson already defined in MSVCRTD.lib(MSVCR90D.dll) LIBCMTD.lib dcmmkdir Error 6 error LNK2005: __errno already defined in MSVCRTD.lib(MSVCR90D.dll) LIBCMTD.lib dcmmkdir Error 7 error LNK2005: __configthreadlocale already defined in MSVCRTD.lib(MSVCR90D.dll) LIBCMTD.lib dcmmkdir Error 8 error LNK2005: _exit already defined in MSVCRTD.lib(MSVCR90D.dll) LIBCMTD.lib dcmmkdir Documentation: This seems to be a popular error for this library so, they do have a FAQ entry addressing this issue which ( http://forum.dcmtk.org/viewtopic.php?t=35 ) says: The problem is that the linker tries to combine different, incompatible versions of the Visual C++ runtime library into a single binary. This happens when not all parts of your project and the libraries you link against are generated with the same code generation options in Visual C++. Do not use the /NODEFAULTLIB workaround, because strange software crashes may follow. Fix the problem! DCMTK is by default compiled with the "Multithreaded" or "Multithreaded Debug" code generation option (the latter for Debug mode). Either change the project settings of all of your code to use these code generation options, or change the code generation for all DCMTK modules and re-compile. MFC users beware: DCMTK should be compiled with "Multithreaded DLL" or "Multithreaded DLL Debug" settings if you want to link the libraries into an MFC application. Solution to same problem for others: http://stackoverflow.com/questions/2259697/vscopengl-huge-amount-of-linker-issues-with-release-build-only says: It seems that your release build is trying to link to something that was built debug. You probably have a broken dependency in your build, (or you missed rebuilding something to release by hand if your project is normally built in pieces). More technically, you seem to be linking projects built with different C Run Time library settings, one with "Multi-Threaded", another one with "Multi-Threaded Debug". Adjust the settings for all the projects to use the very same flavour of the library and the issue should go away Questions: Till now I used to think that Name mangling is the only problem that may cause linking failures if its not been standardized. Just now I knew there are other things also which can cause same effect. Whats up with the "Debug Mode" (Multi-Threaded Debug) and "Release Mode" (Multi-Threaded)? What exactly is happening under the hood? Why exactly this thing is causing linking error? I wonder if there is something called "Single-Threaded Debug" and "Single-Threaded" which again causes the same thing. Documentation talks something about "Code Generation Options". What Code Generation Options? WTH are they? Documentation specifically warns us not to use /NODEFAULTLIB workaround. (example /NODEFAULTLIB :msvcrt ). Why? How would I cause troubles? what exactly is it? Please explain the last point in the documentation for MFC users. Because I'm going to use MFC later in this project. Explain Why should we do it? What troubles would it cause if I don't. Anything more you'd like to mention? I mean regarding similar errors. I'm very interested in Linker & its problems. So, if there are any similar things you can mentions them or some keywords atleast.

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  • Silverlight Cream for April 01, 2010 -- #827

    - by Dave Campbell
    In this Issue: Max Paulousky, Hassan, Viktor Larsson, Fons Sonnemans, Jim McCurdy, Scott Marlowe, Mike Taulty, Brad Abrams, Jesse Liberty, Scott Barnes, Christopher Bennage, and John Papa and Ward Bell. Shoutouts: Tim Heuer posted a survey: What tools are the minimum to get started in Silverlight?... have you responded yet? Don't want to miss this discussion: Channel 9 Live at MIX10: Bill Buxton & Erik Meijer - Perspectives on Design Bookmark this... Jesse Liberty has moved his site: Silverlight Geek I stand with Tim Heuer on this: Congratulations to latest 2nd quarter Silverlight MVPs From SilverlightCream.com: Wizards. Prototype of sketching Wizard for WPF - 1 Max Paulousky is creating a SketchFlow WPF wizard in Expression Blend... looks like good Expression Blend and SketchFlow no matter what the target is Windows Phone 7 Navigation Hassan has another WP7 Video up, and this one is on Navigation and passing data from page to page. Silverlight 4 PathListBox Viktor Larsson is blogging about the PathListBox, and definitely had a good time doing so.. lots of fun examples. CountDown Clock in Silverlight 4 Fons Sonnemans has reworked his Sivlerlight 3 FlipClock to be this Silverlight 4 CountDown Clock utilizing the Viewbox control to make it scalable. Generic class for deep clone of Silverlight and CLR objects Jim McCurdy has a Silverlight 3 and 4-tested CloneObject class that he's using for creating a deep copy of an object and all it's properties... think drag/drop or undo/redo. Animating the Fill Color of a Silverlight Ellipse Scott Marlowe has a tutorial up that animates a pass/fail indicator with a smooth transition from a red to a green state... all with code. Silverlight 4, Blend 4, MVVM, Binding, DependencyObject Mike Taulty has a great tutorial up on Blend4 and binding... he's got a somewhat contrived example going, but it certainly looks good to me :) Silverlight 4 + RIA Services - Ready for Business: Authentication and Personalization Next up in Brad Abrams' series is Authentication and Personalization. RIA Services makes this easy to do... let Brad show you! An Annotated Line of Business Application Jesse Liberty is walking through the design and delivery of his HyperVideo project with this mini tutorial. Want to understand the thought process behind the LOB app, check this out. How to hack Expression Blend Seems like there was just some discussion about some of this today and here Scott Barnes posts this hack job for Expression Blend... pretty cool actually :) d:DesignInstance in Blend 4 Christopher Bennage has a follow-on post about using d:DesignInstance in Blend 4, and this is a very nice tutorial on the subject Silverlight TV 19: Hidden Gems from MIX10, UFC's Multi-Touch App John Papa and Ward Bell front and center for Silverlight TV number 19... and check out those threads! Stay in the 'Light! Twitter SilverlightNews | Twitter WynApse | WynApse.com | Tagged Posts | SilverlightCream Join me @ SilverlightCream | Phoenix Silverlight User Group Technorati Tags: Silverlight    Silverlight 3    Silverlight 4    Windows Phone MIX10

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