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  • Counting number of children in hierarchical SQL data

    - by moontear
    for a simple data structure such as so: ID parentID Text Price 1 Root 2 1 Flowers 3 1 Electro 4 2 Rose 10 5 2 Violet 5 6 4 Red Rose 12 7 3 Television 100 8 3 Radio 70 9 8 Webradio 90 For reference, the hierarchy tree looks like this: ID Text Price 1 Root |2 Flowers |-4 Rose 10 | |-6 Red Rose 12 |-5 Violet 5 |3 Electro |-7 Television 100 |-8 Radio 70 |-9 Webradio 90 I'd like to count the number of children per level. So I would get a new column "NoOfChildren" like so: ID parentID Text Price NoOfChildren 1 Root 8 2 1 Flowers 3 3 1 Electro 3 4 2 Rose 10 1 5 2 Violet 5 0 6 4 Red Rose 12 0 7 3 Television 100 0 8 3 Radio 70 1 9 8 Webradio 90 0 I read a few things about hierarchical data, but I somehow get stuck on the multiple inner joins on the parentIDs. Maybe someone could help me out here. moon

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  • Can someone suggest a way to learn regex?

    - by Nick Brooks
    In my situation knowing Regex would be very useful but I can't seem to be able to learn it. I completely don't understand it and I find it quite strange. To me Regex is just a set of jumbled up symbols which 'somehow' does the job. I looked at many tutorials and still haven't figured how to use it. The other thing I find weird that whenever I search for a way to implement something with regex I find lots of different solutions. For example these are for 'matching text between the brackets' 1: \((.*?)\) 2: ((.+?)) That confuses me even more ... Can someone suggest a good way of learning it? Personally I find it even more difficult than assembly language. For now I'm avoiding Regex and using things such as "substr" to get the bits I need.

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  • Is there any HTML wysiwyg editor?

    - by martin
    I wonder whether there is any good WYSIWYG editor when it comes to editing complex HTML pages generated from ASP.NET, PHP, GWT or anything else. I've tried a lot of WYSIWYG tools, but after a certain point I always end up with manually editing the HTML source code or CSS to fix different issues. The editors I've tried are never compatible with the ASP.NET/PHP/etc code I'm writing. Edit: I have used Visual Studio for a few years to do ASP.NET development. After a while, it always comes to the point where I can't even open the pages and user controls because they rely on so many things which aren't available in debug time.

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  • PROJECT HELP NEEDED. SOME BASIC CONCEPTS GREAT CONFUSION BECAUSE OF LACK OF PROPER MATERIAL PLEASE H

    - by user287745
    Task ATTENDENCE RECORDER AND MANAGEMENT SYSTEM IN DISTRIBUTED ENVIRONMENT ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Example implementation needed. a main server in each lab where the operator punches in the attendence of the student. =========================================================== scenerio:- a college, 10 departments, all departments have a computer lab with 60-100 computers, the computers within each lab are interconnected and all computers in any department have to dail to a particular number (THE NUMBER GIVEN BY THE COLLEGE INTERNET DEPARTMENT) to get connected to the internet. therefore safe to assume that there is a central location to which all the computers in the college are connected to. there is a 'students attendence portal' which can be accessed using internet explorer, students enter there id and get the particular attendence record regarding to the labs only. a description of the working is like:- 1) the user will select which department, which year has arrived to the lab 2) the selection will give the user a return of all the students name and there roll numbers belonging to that department; 'with a check box to "TICK MARK IF THE STUDENT IS PRESENT" ' 3) A SUBMIT BUTTON when pressed reads the 'id' of the checkbox to determine the "particular count number of the student" from that an id of the student is constructed and that id is inserted with a present. (there is also date and time and much more to normalize the db and to avoid conflicts and keep historic records etc but that you will have to assume) steps taken till this date:- ( please note we are not computer students, we are to select something of some other line as a project!, as you will read in my many post 'i" have designed small websites just out of liking. have never ever done any thing official to implement like this.) * have made the database fully normalized. * have made the website which does the functions required on the database. Testing :- deployed the db and site on a free aspspider server and it worked. tested from several computers. Now the problem please help thank youuuuuuuu a practical demonstration has to be done within the college network. no internet! we have been assigned a lab - 60 computers- to demonstrate. (please dont give replies as 60 computers only! is not a big deal one CPU can manage it. i know that; IT IS A HYPOTHETICAL SITUATION WHERE WE ASSUME THAT 60 IS NOT 60 BUT ITS LIKE 60,000 COMPUTERS) 1a) make a web server, yes iis and put files in www folder and configure server to run aspx files- although a link to a step by step guide will be appreciated)\ ? which version of windows should i ask for xp or win server 2000 something? 2a) make a database server. ( well yes install sql server 2005, okay but then what? just put the database file on a pc share it and append the connection string to the share? ) 3a) make the site accessible from the remaining computers ? http://localhost/sitename ? all users "being operators of the particular lab" have the right to edit, write or delete(in dispute), thereby any "users" who hate our program can make the database inconsistent by accessing te same record and doing different edits and then complaining? so how to prevent this? you know something like when the db table is being written to others can only read but not write.. one big confusion:- IN DISTRIBUTED ENVIRONMENT "how to implement this" where does "distributed environment" come in! meaning :- alright the labs are in different departments but the "database server will be one" the "web server will be one" so whats distributed!?

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  • how do I use svn in eclipse?

    - by firesoul453
    I'm trying to create my own SVN server so I can work on my android projects everywhere. I have an VPS and I installed svn, I set up the directory and added a use to the password file. After a while I finally managed to create a project with svn import -m "initial import" . file:///home/admin/svn/reposvn/testp/trunk But I don't understand? Can I only import project that are on my server? If thats the case I could just use ftp and not worry about svn at all. What I would like to do is have a url to use in things like eclipse. my subdomain points to /home/admin/svn/ and then I typed in /reposvn So I tried the urls http://(mydomain)/reposvn and svn://(mydomain)/reposvn but neither worked Says Detected a cycle while processing the operation svn: Redirected cycle detected for URL .... I also set up daemon or whatever with svnserve -d any ideas? Thanks!

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  • How to efficiently track my geolocation during traveling using iPhone

    - by Peter Kruithof
    I'm going to travel through Thailand and I want to keep track of my location to geotag photos afterwards taken with a digital camera (iPhone's camera is not good enough). There are two things that are important here: I don't want to update manually I want the battery to last as long as possible, since the times I will be able to charge will be scarce I've thought about creating a web page that periodically sends my geolocation to a script that stores it in a database, but I don't know if GPS data is available in Mobile Safari. Second, I want the data I send to be as small as possible, and the frequency this is done s few as possible, because of the pricing of mobile data usage abroad. Any suggestions what would be a good solution here?

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  • convert string to float without silent NaN/Inf conversion

    - by Peter Hansen
    I'd like convert strings to floats using Python 2.6 and later, but without silently converting things like 'NaN' and 'Inf'. Before 2.6, float("NaN") would raise a ValueError. Now it returns a float for which math.isnan() returns True, which is not useful behaviour for my application. Here's what I've got at the moment: import math def get_floats(source): for text in source.split(): try: val = float(text) if math.isnan(val) or math.isinf(val): raise ValueError yield val except ValueError: pass This is a generator, which I can supply with strings containing whitespace-separated sequences representing real numbers. I'd like it to yield only those fields which are purely numeric representations of floats, as in "1.23" or "-34e6", but not for example "NaN" or "-Inf". Test case: assert list(get_floats('1.23 -34e6 NaN -Inf')) == [1.23, -34000000.0] Please suggest alternatives you consider more elegant, even if they involve "look before you leap" (which is normally considered a lesser approach in Python).

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  • Windows Azure Platform, latest version?

    - by Vimvq1987
    I searched through internet but found nothing. The whitepapers of Windows Azure Platform say something like that: In its first release, the maximum size of a single database in SQL Azure Database is 10 gigabytes A few things are omitted in the technology’s first release, however, such as the SQL Common Language Runtime (CLR) and support for spatial data. (Microsoft says that both will be available in a future version.) I want to know that Microsoft had updated Windows Azure Platform and removed these limits or not? I decided to post this question here instead of Serverfault.com because it's more relative to programming than administration. Thank you

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  • How is Magento when it comes to adding custom functionality?

    - by ohsnapy
    hi, How is working with Magento when it comes to adding custom functionality? From an outsiders view the framework looks very complicated and it's hard to gage what is and is not possible. What are your experiences? Is it a difficult framework to get it to do what you want? Are there things that simply cannot be customized in Magento? How difficult is it to manage customizations when upgrading to latest versions,etc.. Any feedback/personal experiences would be great. Examples of highly customized Magento sites would be great too. Thanks for your help.

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  • Adding relative path for an external graphic in a XSL document?

    - by Pran
    Hi, first of, I don't know much about XSL. I am using a app called DITA to generate pdfs. One of the things it requires is an overwrite of an xsl file; to add custom styling. I am trying to add an external graphic using a relative path. It doesn't work, unless I supply the full path. Does not work: <fo:block text-align="center" width="100%"> <fo:external-graphic src="../../images/logo.png"/> </fo:block> Does work: <fo:block text-align="center" width="100%"> <fo:external-graphic src="/absolute/path/to/images/logo.png"/> </fo:block> I looked on the web, it said to use "file:image.png" and other website said to use "url(image.png)", but neither worked. What am I doing wrong?

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  • How to return variable datatypes from a method

    - by Praesagus
    I have a method whose callers require different datatypes. I could repeat the requisite conversions a dozen times by putting them in each of the callers, but it seems much more efficient to do it once in the called method. public String myMethod(String myArg) { return DoSomething(myArg); } public Int32 myMethod(String myArg) { return Convert.ToInt32(DoSomething(myArg)); } private String DoSomething(key) { return SomeList[key]; } If I have multiple methods that pull data from SomeList and have to utilize different data types then in each I have to do a type conversion. Examples might be session variables or query or form requests or any other number of things. In VB I could say Function myMethod(myArg as String) as Variant myMethod=DoSomething(myArg) End Function Sorry if the original post was not very clear. I hope this makes more sense. Thanks

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  • CodePlex Daily Summary for Wednesday, March 14, 2012

    CodePlex Daily Summary for Wednesday, March 14, 2012Popular ReleasesAcDown????? - Anime&Comic Downloader: AcDown????? v3.9.2: ?? ●AcDown??????????、??、??????,????1M,????,????,?????????????????????????。???????????Acfun、????(Bilibili)、??、??、YouTube、??、???、??????、SF????、????????????。??????AcPlay?????,??????、????????????????。 ● AcDown???????????????????????????,???,???????????????????。 ● AcDown???????C#??,????.NET Framework 2.0??。?????"Acfun?????"。 ????32??64? Windows XP/Vista/7/8 ????????????? ??:????????Windows XP???,?????????.NET Framework 2.0???(x86),?????"?????????"??? ??????????????,??????????: ??"AcDo...C.B.R. : Comic Book Reader: CBR 0.6: 20 Issue trackers are closed and a lot of bugs too Localize view is now MVVM and delete is working. Added the unused flag (take care that it goes to true only when displaying screen elements) Backstage - new input/output format choice control for the conversion Backstage - Add display, behaviour and register file type options in the extended options dialog Explorer list view has been transformed to a custom control. New group header, colunms order and size are saved Single insta...Windows Azure Toolkit for Windows 8: Windows Azure Toolkit for Windows 8 Consumer Prv: Windows Azure Toolkit for Windows 8 Consumer Preview - Preview Release v 1.2.0 Please download this for Windows Azure Toolkit for Windows 8 functionality on Windows 8 Consumer Preview. The core features of the toolkit include: Automated Install – Scripted install of all dependencies including Visual Studio 2010 Express and the Windows Azure SDK on Windows 8 Consumer Preview. Project Templates – Windows 8 Metro Style app project templates in Dev 11 in both XAML/C# and HTML5/JS with a suppor...CODE Framework: 4.0.20312.0: This version includes significant improvements in the WPF system (and the WPF MVVM/MVC system). This includes new styles for Metro controls and layouts. Improved color handling. It also includes an improved theme/style swapping engine down to active (open) views. There also are various other enhancements and small fixes throughout the entire framework.Visual Studio ALM Quick Reference Guidance: v3 - For Visual Studio 11: RELEASE README Welcome to the BETA release of the Quick Reference Guide preview As this is a BETA release and the quality bar for the final Release has not been achieved, we value your candid feedback and recommend that you do not use or deploy these BETA artifacts in a production environment. Quality-Bar Details Documentation has been reviewed by Visual Studio ALM Rangers Documentation has not been through an independent technical review Documentation ...AvalonDock: AvalonDock 2.0.0345: Welcome to early alpha release of AvalonDock 2.0 I've completely rewritten AvalonDock in order to take full advantage of the MVVM pattern. New version also boost a lot of new features: 1) Deep separation between model and layout. 2) Full WPF binding support thanks to unified logical tree between main docking manager, auto-hide windows and floating windows. 3) Support for Aero semi-maximized windows feature. 4) Support for multiple panes in the same floating windows. For a short list of new f...Google Books Downloader for Windows: Google Books Downloader-1.9.0.0.: Google Books DownloaderWindows Azure PowerShell Cmdlets: Windows Azure PowerShell Cmdlets 2.2.2: Changes Added Start Menu Item for Easy Startup Added Link to Getting Started Document Added Ability to Persist Subscription Data to Disk Fixed Get-Deployment to not throw on empty slot Simplified numerous default values for cmdlets Breaking Changes: -SubscriptionName is now mandatory in Set-Subscription. -DefaultStorageAccountName and -DefaultStorageAccountKey parameters were removed from Set-Subscription. Instead, when adding multiple accounts to a subscription, each one needs to be added ...IronPython: 2.7.2.1: On behalf of the IronPython team, I'm happy to announce the final release IronPython 2.7.2. This release includes everything from IronPython 54498 and 62475 as well. Like all IronPython 2.7-series releases, .NET 4 is required to install it. Installing this release will replace any existing IronPython 2.7-series installation. Unlike previous releases, the assemblies for all supported platforms are included in the installer as well as the zip package, in the "Platforms" directory. IronPython 2...Kooboo CMS: Kooboo CMS 3.2.0.0: Breaking changes: When upgrade from previous versions, MUST reset the all the content type templates, otherwise the content manager might get a compile error. New features Integrate with Windows azure. See: http://wiki.kooboo.com/?wiki=Kooboo CMS on Azure Complete solution to deploy on load balance servers. See: http://wiki.kooboo.com/?wiki=Kooboo CMS load balance Update Jquery and Jquery ui to the lastest version(Jquery 1.71, Jquery UI 1.8.16). Tree style text content editing. See:h...Home Access Plus+: v7.10: Don't forget to add your location to the list: http://www.nbdev.co.uk/projects/hap/locations.aspx Changes: Added: CompressJS controls to the Help Desk & Booking System (reduces page size) Fixed: Debug/Release mode detection in CompressJS control Added: Older Browsers will use an iframe and the old uploadh.aspx page (works better than the current implementation on older browsers) Added: Permalinks for my files, you can give out links that redirect to the correct location when you log i...SubExtractor: Release 1026: Fix: multi-colored bluray subs will no longer result in black blob for OCR Fix: dvds with no language specified will not cause exception in name creation of subtitle files Fix: Root directory Dvds will use volume label as their directory nameExtensions for Reactive Extensions (Rxx): Rxx 1.3: Please read the latest release notes for details about what's new. Related Work Items Content SummaryRxx provides the following features. See the Documentation for details. Many IObservable<T> extension methods and IEnumerable<T> extension methods. Many wrappers that convert asynchronous Framework Class Library APIs into observables. Many useful types such as ListSubject<T>, DictionarySubject<T>, CommandSubject, ViewModel, ObservableDynamicObject, Either<TLeft, TRight>, Maybe<T>, Scala...Microsoft Ajax Minifier: Microsoft Ajax Minifier 4.47: Properly output escaped characters in CSS identifiers throw an EOF error when parsing a CSS selector that doesn't end in a declaration block chased down a stack-overflow issue with really large JS sources. Needed to flatten out the AST tree for adjacent expression statements that the application merges into a single expression statement, or that already contain large, comma-separated expressions in the original source. fix issue #17569: tie together the -debug switch with the DEBUG defi...Player Framework by Microsoft: Player Framework for Windows 8 Metro (Preview): Player Framework for HTML/JavaScript and XAML/C# Metro Style Applications. Additional DownloadsIIS Smooth Streaming Client SDK for Windows 8WPF Application Framework (WAF): WAF for .NET 4.5 (Experimental): Version: 2.5.0.440 (Experimental): This is an experimental release! It can be used to investigate the new .NET Framework 4.5 features. The ideas shown in this release might come in a future release (after 2.5) of the WPF Application Framework (WAF). More information can be found in this dicussion post. Requirements .NET Framework 4.5 (The package contains a solution file for Visual Studio 11) The unit test projects require Visual Studio 11 Professional Changelog All: Upgrade all proje...SSH.NET Library: 2012.3.9: There are still few outstanding issues I wanted to include in this release but since its been a while and there are few new features already I decided to create a new release now. New Features Add SOCKS4, SOCKS5 and HTTP Proxy support when connecting to remote server. For silverlight only IP address can be used for server address when using proxy. Add dynamic port forwarding support using ForwardedPortDynamic class. Add new ShellStream class to work with SSH Shell. Add supports for mu...Test Case Import Utilities for Visual Studio 2010 and Visual Studio 11 Beta: V1.2 RTM: This release (V1.2 RTM) includes: Support for connecting to Hosted Team Foundation Server Preview. Support for connecting to Team Foundation Server 11 Beta. Fix to issue with read-only attribute being set for LinksMapping-ReportFile which may have led to problems when saving the report file. Fix to issue with “related links” not being set properly in certain conditions. Fix to ensure that tool works fine when the Excel file contained rich text data. Note: Data is still imported in pl...DotNetNuke® Community Edition CMS: 06.01.04: Major Highlights Fixed issue with loading the splash page skin in the login, privacy and terms of use pages Fixed issue when searching for words with special characters in them Fixed redirection issue when the user does not have permissions to access a resource Fixed issue when clearing the cache using the ClearHostCache() function Fixed issue when displaying the site structure in the link to page feature Fixed issue when inline editing the title of modules Fixed issue with ...Mayhem: Mayhem Developer Preview: This is the developer preview of Mayhem. Enjoy! If you are looking for the Phone applications, please visit this discussionNew ProjectsAD Test Tool: After trying to figure out replication and other user-based issues with a local domain system we built this simple tool to test what the directory was currently reflecting for each user who accessed the tool.BuildUp: MSBuild scripts for use with CI servers.CDRtoSQL: CDRtoSQLCloudStorage4Net: A set of C# wrapper used to access cloud storage services. Such aliyun, grandcloud, baiduyun etc. The project is created to generalize the interfaces of difference storeage platform. We expect programmers could use all these cloud storage in a uniform way. D.E.M.O.N MySQL Tweaker: D.E.M.O.N Studio MySQL Tweaker, a fast and easy-to-use Mysql tools. Add this to your project, install , start, and stop mysql service with a little coding work. Love MySQL , Love MySQL TweakerEarth2012: Earth2012 shows the possible 31 events of 2012 according to the research at www.heliwave.com. For each event, the Earth map shows the danger latitude and all danger and semi-danger cities around it. The user can adjust the starting date of the events once we see a 4-day event.fjyc documents: this is a documentation share for fjyc projectFolderDrive: FolderDrive is a small tool that turns your folders into drives. Imagine having your Dropbox folder behaving as the (almost real) harddrive. It's another handy solution in the ongoing quest for quick access to your favorite folders. The project is developed in C# using WPF - you'll need .NET framework 4 to use it.GralicNew: dHarness: Harness is Web Browser Automation Framework. implemented as COM (Common Object Library) Harness will automate the testing of Web applications by automatic operation the Internet Explorer. you can easily use from your favorite development language.IIS2SQL: Powershell script for IIS7.5 that will send IIS logs to an MSSQL database. Separate table is used to keep track of when the last update occurred so only new events are inserted. Writes to the Application log status messages.Inside Sales Api Client: InsideSales.com api client. Current valid operations are Login and AddLead only. Developed in C#, .NET Framework 4.jqGrid Helper Library: This library is intended for use with the jqGrid jQuery plugin. It provides classes for handling grid settings, building filter and order by expressions, and will build a JQGrid object and then serialize it to either JSON or XML. longSudoku: A simple sudoku game! Use WinForm development! Imitate Metro UI!MantisWare Proxy Switcher: This is a small application that runs in your task bar and gives you the capability to add a proxy list and switch between them quickly, either by selecting the appropriate proxy or using the shortcut keys. It's developed in C#.net, MSSQL Compact.Map Wisata: Map , Dotspatial , Ribbon, Visual Basic.Netmapabc?? API WP SDK: mapabc?? API WP SDKNetWinsock: Provides a simple, event-driven Windows Forms Component capable of serving as a TCP client or server. Utilizes an asynchronous/multithreaded pattern and raises data reception and error events on the UI thread for easy processing. Reminiscent of the VB6 Winsock control.Orchard Zencoder: Orchard module that enables usage of zencoder for encoding media files. http://zencoder.comPleXKeys Predictive Typing: PleXKeys is a predictive typing app for Microsoft Windows. It allows you to type faster and more accurately. With adaptive typing and instant spelling suggestions. Oh and Macros too! Automatic Word Prediction As you type, PleXKeys will predict the next word you are going to type. Then, by simply pressing the ENTER key, PleXKeys will insert the word for you, saving wasted keystrokes. After you have used PleXKeys enough for it to adapt to your typing style, typing entire sentences can b...Samples for my book "Getting Started with the Internet of Things": All examples for my book "Getting Started with the Internet of Things", the Gsiot.PachubeClient library, and the Gsiot.Server library are included in this project.SharePoint Hive - Projects & Articles: TBDSharePoint webparts for the community (Enterprise ready and free): SharePoint webparts for the community (Enterprise ready and free)SimpleCritters: An experiment with neural networks. This project is chiefly academic in nature. This project is concerned with evolving simple critter behavior using simulated neurons.Snip-A-Dillie-O Web: My venture into MVC3 / EF Code First / SQL CE. Snip-A-Dillie-O is just one piece of the bigger picture as a simple code snippet management toolTestMum: C#, Asp.net test projectVisDiskUse: Visualize how much disk space is being used by folders in your hard drive.Windows Phone App Accelerators (WPAA): Windows Phone App Accelerator aims to make creating a Windows Phone application even easier by creating a Visual Studio Template (or Templates) that do the bulk of the common work for you. This is NOT an app factory.

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  • MS Access Print Report using VBA

    - by LanguaFlash
    I have a very VBA intensive report. When I preview it everything is great but when I print it after previewing things go wacky. I have spent many hours narrowing down the possibilities and I have conclude with a certain level of confidence that it is a but in MS Access. Up to this point my method for printing reports was to open the report using docmd.openreport "report". I then use the docmd.printout command so that I can set the page range, collation etc. Is there a way to print a report directly and still be able to set options like page rage, collate etc without doing a preview first? Thanks, Jeff

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  • Microsoft SQL Server 2005 - using the modulo operator

    - by cc0
    So I have a silly problem, I have not used much SQL Server before, or any SQL for that matter. I basically have a minor mathematical problem that I need solved, and I thought modulo would be good. I have a number of dates in the database, but I need them be rounded off to the closest [dynamic integer] (could be anything from 0 to 5000000) which will be input as a parameter each time this query is called. So I thought I'd use modulo to find the remainder, then subtract that remainder from the date. If there is a better way, or an integrated function, please let me know! What would be the syntax for that? I've tried a lot of things, but I keep getting error messages like integers/floats/decimals can't be used with the modulo operators. I tried casting to all kinds of numeric datatypes. Any help would be appreciated.

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  • Triggering shouldStartLoadWithRequest with multiple window.location.href calls

    - by AlBeebe
    Im trying to pass multiple things from a webpage inside a UIWebView back to my iPhone app via the shouldStartLoadWithRequest method of the UIWebView. Basically my webpage calls window.location.href = "command://foo=bar" and i am able to intercept that in my app no problem. Now if i create a loop and do multiple window.location.href calls at once, then shouldStartLoadWithRequest only appears to get called on once and the call it gets is the very last firing of window.location.href at the end of the loop. The same thing happens with the webview for Android, only the last window.location.href gets processed.

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  • QProcess, QEventLoop - of any use for parallel-processing

    - by dlib
    I wonder whether I could use QEventLoop (QProcess?) to parallelize multiple calls to same function with Qt. What is precisely the difference with QtConcurrent or QThread? What is a process and an event loop more precisely? I read that QCoreApplication must exec() as early as possible in main() method, so that I wonder why it is different from main Thread. could you point as some efficient reference to processes and thread with Qt? I came through the official doc and those things remain unclear. Thanks and regards.

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  • Insert record in Linq to Sql

    - by Anders Svensson
    Is this the easiest way to insert a record with Linq to Sql when there's a many-to-many relationship, or is there a better/cleaner way? I wasn't sure why things weren't working at first, but when I added a second SubmitChanges() it worked. Why was this necessary? Would be grateful if someone could clarify this a bit! private void InsertNew() { UserPageDBDataContext context = new UserPageDBDataContext(); User user = new User(); ManyToMany.Model.Page page = new ManyToMany.Model.Page(); user.Name = "Madde Andersson"; page.Url = "anderscom/references"; context.Users.InsertOnSubmit(user); context.Pages.InsertOnSubmit(page); context.SubmitChanges(); UserPage userPage = new UserPage(); userPage.UserID = user.UserID; userPage.PageID = page.PageID; user.UserPages.Add(userPage); context.SubmitChanges(); }

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  • Is this a good centralized DVCS workflow?

    - by Chad Johnson
    I'm leaning toward using Mercurial, coming from Subversion, and I'd like to maintain a centralized workflow like I had with Subversion. Here is what I am thinking: stable (clone on server) default (branch) development (clone on server) default (branch) bugs (branch) developer1 (clone on local machine) developer2 (clone on local machine) developer3 (clone on local machine) feature1 (branch) developer3 (clone on local machine) feature2 (branch) developer1 (clone on local machine) developer2 (clone on local machine) As far as branches vs. clones is concerned, does this workflow sense? Do I have things straight? Also, the 'stable' clone IS the release. Does it make sense for the 'default' branch to be the release and what all other branches are ultimately merged into?

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  • Looking for Light Time Management Software Suggestions (for Mac)

    - by tmo256
    I'm looking for a simple project management app that performs task scheduling, along the line of Merlin or MS Project, but no where near as robustly. I don't need to deal with other (human) resources, but I work on anything from 3 to 6 different projects at a time. What I'd like is to be able to input deadlines and tasks, and have a schedule suggested to complete them. I do technical work, but I don't think I need anything specifically for software development, especially considering I do plenty of other kinds of things, like graphic design and social media PR. I'd really like this to be dead simple, as simple as possible. Suggestions? OmniPlan, something web-based? Definitely cannot afford anything too extravagant, really looking for something under $200. Thanks for your input!

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  • ASP.Net ITemplate - ways of declaring

    - by Mahes
    when we want to define a Template in our user controls we declare a field like this in our user controls public ITemplate MyTemplate { get; set; } so that the user defined templates contents will be represented in MyTemplate, and you can use it. and there are ways to customize the templates, for example [TemplateInstanceAttribute(TemplateInstance.Single)] public ITemplate MyTemplate { get; set; } the above example will enable defines single instance Templates(http://www.nikhilk.net/SingleInstanceTemplates.aspx). i accidentally came across single instance templates and blown away by the power of it. my question is what are all the things possible with ITemplates?? how do we define(use) them (more specifically thru annotations). is there any good documentation available for ITemplates?? (please dont point to msdn)

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  • Plain-English tutorial on artificial neural networks?

    - by Stuart
    I've Googled, StackOverflowed, everything, and I cannot seem to find a tutorial I can understand. I understand the concept of genetic algorithms, and how to implement them, (Though I haven't tried) but I cannot grasp the concept of neural networks. I know vaguely how they work... And that's about it. Could someone direct me to a tutorial that could help someone who has not even graduated middle school yet? Sure, I'm several years ahead of the majority of people my grade, but I don't understand summation, (which I apparently need if I don't want a simple binary output) vectors, and other things that I apparently should know. Is there a simple, bare-bones tutorial for neural networks? After I learn the basics, I'll proceed to more difficult ones. Preferably, they would be in Java. Thanks!

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  • Do you have a development IDE hotkey set in AutoHotkey?

    - by blesh
    I've recently rejoined the AutoHotkey band wagon, and I've been setting up a master script for myself. Generally, I have a few global hotkeys, for doing things like popping open the calculator, and frequently used solutions. I even have a hotkey to restart certain local windows services, I've also got several contextual hotkeys that are only available when certain programs are active, but I don't have anything so far for my common IDE's. I generally develop in VS2008/2010 these days and they have a pretty robust shortcut and code snippet system. Still, I can't help but wonder if anyone out there has come up with a useful set of hotkeys/hotstrings in AutoHotKey for their favorite development environments? I haven't seen much out there, but I'm always interested in ways to cut back my mundane tasks with automation. Does anyone have any AutoHotkey scripts they use primarily for development?

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  • VS2010 MVC and Entity Framework Model in Separate Project

    - by mdm
    Hi, I am trying to use an Entity Framework Model (in separate project) into an asp.net 4 MVC project (VS2010, C#) If I create the EF inside the MVC project I have no problems. I think I am missing some step. things done: 1. added reference to the EF class project 2. added connection string in MVC web.config 3. added reference to System.Data.Entity in both web.config and project references Now i can use the model only if I copy the .edmx file to the Models folder, but in this way the EF project is not external anymore. What am I missing? Thank you in advance.

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  • Current ways to do data binding in .NET 3.5 with C# 3.0 and WinForms

    - by kryptic
    Hello Everyone, I have an existing C# 3.0 WinForms project with .NET 3.5 that talks to a MySQL database. I would like to use data binding (I'm new to this, so I've been doing all of the UI updates manually) to simplify things. I followed a link from this question to this article which mentions using a DataSet but also follows up with "my view on this topic is strongly in favor of Business Objects." Also that was with .NET 2.0. What are the current methods to use data binding with a WinForms application? What are their advantages in terms of simplicity, how much additional code is necessary, etc. For reference, I use an ORM approach to build objects with public properties from a database. I want to map these properties for each object onto UI elements like TextBoxes. There could be many properties for an object so I want to simplify the code to do this.

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  • Which Programming Language Should I Learn?

    - by Esteban Araya
    I've decided, for educational purposes, I want to learn a new language every 2 years or so. Which language should I learn first? Why? I'm proficient with C, C# and Java. Other than that, I really haven't done much with any other languages. Thanks! Edit: Thanks to all of those that recommended functional languages. Making the mental switch to a functional language seems hard. How did you overcome your instinct to keep doing things in a procedural manner?

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