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  • Does a VCL OrgChart component with decent features exists? Is there a viable alternative?

    - by user193655
    I am using DevExpress OrgChart component that is still maintained but not developed since 2003 (fortunately bugs are fixed, but nothing more). Honestly this component, even if it starts to look too old still suffices my requirements except for 2 things: 1) it doesn't support at all the staff feature, for understanding what I mean see this image (where the items in staff are Administration, Communication, IT, Special Projects). 2) it arranges the items without optimizing the space, for example if there are 3 items at top level, and only the second item has 2 childs, the top items items are drawn more distantly, because of the 2 childs, there is no an option for "shirinking" the diagram. Of course the component misses tons of the features one would expect from an OrgChart tool, but in my case Those 2, and expecially (1) are important, the rest is lack of eye-candy. I look for VCL components, but if (as I fear, since I never found it) such component doesn't exist) I can see the following alternatives: i) using Hydra with .net winforms components ii) using ActiveX components. Between the 2 I would prefer ActiveX because of the .NET deployment hell (what I like about Delphi is that you ship the exe to the customer witn Win2k and it works). Anyway I never used an activeX control and I don't know which are the deployment issues, but I fear I will lose the opportunity of replacing an exe and upgrading the software. iii) hire a delphi component develoeper that can customize the DevEx component by adding feature (1) and maybe (2). I am stuck.

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  • Single developer, project organization

    - by poke
    I am looking for a good (and free) way to organize some of my personal projects. I am saying "organize" because I'm not sure, if the standard project management software solutions are exactly what I am looking for and especially something what I, as a single developer, need. In general, I just want to keep my progress of my projects organized in some way. I would like to be able to keep track of milestones and split those into multiple smaller tasks, so I can keep track of my progress. So some task/issue based system would probably be good, especially as I also want to keep track of issues/bugs with specific versions (although I alone will create those issues). I am and will be the only developer on those projects, so it doesn't matter if the software is offline or online, and I also don't need any collaboration features (like commenting on things, or assigning tasks to other developers etc). But if there is a good software that fits my needs, and in addition it has those things, I don't really care. After all it's easy enough to not use available features. Many online solutions also offer integrated code hosting. I am using git internally, but I don't plan to push any of the code, so such a feature is not needed either. In case of online solutions however I would like the projects to be closed to the public (some of the online utilities only offer open source projects for free and require payments for private projects). I have looked at some project management solutions already, I also read some similar questions here on SO. But given that I'm a single developer, my focus is probably a bit different as when others ask for a huge distributed software that supports many developers and different collaboration features. Some standard answers such as Trac (which also only supports one project), Redmine and FogBUGZ look interesting, but are a bit off my interest (although you may change my mind on that :P). Currently, I'm looking at Indefero which doesn't look too bad. But what do you think?

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  • How to Store State in Silverlight WCF RIA Services

    - by peter
    Hi All, I am developing a silverlight 3 application using WCF RIA services. I am using the AuthenticationBase class to handle my authentication. As I understand it under the hood this uses the ASP .NET authentication libraries. When I log into the site the authentication service handles login state so that if I close the site and open it straight away I am still logged in according to the server. When the webpage is refreshed or closed and reloaded I can call the method, WebContextBase.Current.Authentication.LoadUser() And it goes back to the authentication service (running on the server) and figures out whether I am still logged into the site. If a timeout has occured the answer will be no. If that is the case I can show a login dialog. The problem I want to solve is that the authentication service consumes the password, and there is no way I can ever retrieve that password again. If the user logs into the site I want to store the password on the server, and return a token to the client side to match up with that password. I have some other services on the server side that need that password. So where should I store that password on the server? How can that be done? How does the WCF authentication store state?

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  • C# POCO T4 template, generate interfaces?

    - by Jonna
    Does anyone know of any tweaked version of POCO T4 template that generates interfaces along with classes? i.e. if I have Movie and Actor entities in .edmx file, I need to get the following classes and interfaces. interface IMovie { string MovieName { get; set; } ICollection<IActor> Actors { get; set; } //instead of ICollection<Actor> } class Movie : IMovie { string MovieName { get; set; } ICollection<IActor> Actors { get; set; } //instead of ICollection<Actor> } interface IActor { string ActorName { get; set; } } class Actor { string ActorName { get; set; } } Also, just in case I write my own entities, does POCO proxies(I need them for lazy loading) work with the interface declarations as shown above?

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  • Nhibernate join on a table twice

    - by Zuber
    Consider the following Class structure... public class ListViewControl { public int SystemId {get; set;} public List<ControlAction> Actions {get; set;} public List<ControlAction> ListViewActions {get; set;} } public class ControlAction { public string blahBlah {get; set;} } I want to load class ListViewControl eagerly using NHibernate. The mapping using Fluent is as shown below public UIControlMap() { Id(x => x.SystemId); HasMany(x => x.Actions) .KeyColumn("ActionId") .Cascade.AllDeleteOrphan() .AsBag() .Cache.ReadWrite().IncludeAll(); HasMany(x => x.ListViewActions) .KeyColumn("ListViewActionId") .Cascade.AllDeleteOrphan() .AsBag() .Cache.ReadWrite().IncludeAll(); } This is how I am trying to load it eagerly var baseActions = DetachedCriteria.For<ListViewControl>() .CreateCriteria("Actions", JoinType.InnerJoin) .SetFetchMode("BlahBlah", FetchMode.Eager) .SetResultTransformer(new DistinctRootEntityResultTransformer()); var listViewActions = DetachedCriteria.For<ListViewControl>() .CreateCriteria("ListViewActions", JoinType.InnerJoin) .SetFetchMode("BlahBlah", FetchMode.Eager) .SetResultTransformer(new DistinctRootEntityResultTransformer()); var listViews = DetachedCriteria.For<ListViewControl>() .SetFetchMode("Actions", FetchMode.Eager) .SetFetchMode("ListViewActions",FetchMode.Eager) .SetResultTransformer(new DistinctRootEntityResultTransformer()); var result = _session.CreateMultiCriteria() .Add("listViewActions", listViewActions) .Add("baseActions", baseActions) .Add("listViews", listViews) .SetResultTransformer(new DistinctRootEntityResultTransformer()) .GetResult("listViews"); Now, my problem is that the class ListViewControl get the correct records in both Actions and ListViewActions, but there are multiple entries of the same record. The number of records is equal to the number of joins made to the ControlAction table, in this case two. How can I avoid this? If I remove the SetFetchMode from the listViews query, the actions are loaded lazily through a proxy which I don't want.

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  • Visual Studio 2008 Setup Project - Include .NET Framework 3.5

    - by rajadiga
    I built a Visual Studio 2008 setup Project wich depends on .NET 3.5. I added Prerequisites like: .NET 3.5, Microsoft office interoperability, VS tools for office System 3.0 Run time, .etc. After that Selected "Download Prerequisite from Same location as my application" in Specify install location for Prerequisite. I Built the setup and found mysetup.msi in Release directory. In a new machine I started fresh installation of my application. A dialog shows like this "This Setup Requires .NET framework 3.5 , Please install .NET setup then run this setup, .NET Framework can be obtained from web Do you want to do that now?" it gives "Yes" and "No" option - if I press yes it goes to Microsoft website. How can avoid it? I wanted setup take .NET Framework to be installed from same location where I put all setup files including mysetup.msi? In case of quiet installation cmd /c "msiexec /package mysetup.msi /quiet /log install.log" ..in log I can see only half way through installation then error Property(S): HideFatalErrorForm = TRUE MSI (s) (D0:24) [00:07:08:015]: Product: my product-- Installation failed. === Logging stopped: 3/23/2010 0:07:08 === How can complete I the installation without user intervention and without error using VS2008 setup project? Thanks for all the help in advance for any input.

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  • Splitting build cross the network?

    - by Dandikas
    Is there a known solution for splitting build process cross the network machines? Use case: We are an average software development company. We own around 50 development workstations (Quad Core 2.66Ghz, 4 GB ram, 200 GB raid). No need to tell that at any single moment not every machine is loaded to the max. There are 5 to 15 projects running simultaneously at any single moment. Obviously all of them are continuously build on server, than deployed to proper environment. Single project build is taking from 3 to 15 minutes. The problem: Whenever we build 5 projects in a row the last project is going to be ready after around 25 - 50 minutes. Building in parallel does not solve the problem (build is only a part of the game, than you need to deploy, run tests etc.) YES the correct solution is to add another build server, but "That involves buying new Expensive hardware, and we already spent a lot!". Yea, right(damn them)! Anyway. What about splitting build among developers workstation? Lets say whenever we need to build project "A" we check 5 workstations and start build on all that are not overloaded. The build can be canceled by a developer if he really needs all the power of his machine as long as there is at least 1 machine that is still building. After build is finished deployment can be performed to a proper environment (hosted on some server, not on workstation :) ). The bigger the company the more this makes sense to me. Anyone tried something like this? Are there any good practices? Any helpful software? (90% of the projects are .net C#)

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  • Side by side madness - running binaries on different computer (with a twist)

    - by sbk
    Here's my configuration: Computer A - Windows 7, MS Visual Studio 2005 patched for Win7 compatibility (8.0.50727.867) Computer B - Windows XP SP2, MS Visual Studio 2005 installed (8.0.50727.42) My project has some external dependencies (prebuilt DLLs - either build on A or downloaded from the Internet), a couple of DLLs built from sources and one executable. I am mostly developing on A and all is fine there. At some point I try to build my project on computer B, copying the prebuilt DLLs to the output folder. Everything builds fine, but trying to start my application I get The application failed to initialize properly (0xc0150002).... The event log contains two of those: Dependent Assembly Microsoft.VC80.CRT could not be found and Last Error was The referenced assembly is not installed on your system. plus the slightly more amusing Generate Activation Context failed for some.dll. Reference error message: The operation completed successfully. At this point I'm trying my Google-Fu, but in vain - virtually all hits are about running binaries on machines without Visual Studio installed. In my case, however, the executables fail to run on the computer they are built. Next step was to try dependency walker and it baffled me even more - my DLLs built from sources on the same box cannot find MSVCR80.DLL and MSVCP80.DLL, however the executable seems to be alright in respect to those two DLLs i.e. when I open the executable with dependency walker it shows that the MSVC?80.DLLs can be found, but when I open one of my DLLs it says they cannot. That's where I am completely out of ideas what to do so I'm asking you, dear stackoverflow :) I admit I'm a bit blurry on the whole side-by-side thing, so general reading on the topic will also be appreciated.

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  • Colorbox does not refresh its contents when I change URL

    - by Josef Sábl
    I am trying to make use of Colorbox on my webpage. One specific feature does not work as expected, though. In their example (Outside Webpage - Iframe specifically) Google appears in the Colorbox when clicked. When you change href on that link (Using Firebug or JavaScript, e.g.) to, let's say, Yahoo, it works as expected and Yahoo is displayed after click. But not in my case. Once I click the link, I have no way to change the URL. Href, as displayed in browser, changes (to Yahoo), but click always opens the first page (Google). What might be the problem? I almost copy-pasted their example: <script src="/lib/jquery.js"></script> <script src="/lib/jquery.colorbox.js"></script> <p><a class='example7' href="http://yahoo.com">Outside Webpage (Iframe)</a></p> <script> $(document).ready(function(){ $(".example7").colorbox({width:"80%", height:"80%", iframe:true}); }); </script> My jquery version is 1.4.1 but I also tried same version as their example uses (1.3.2)

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  • Global.asax parser errors when deploying MVC 1 application to remote server.

    - by mannish
    So we're having some issues deploying an ASP.NET MVC app to a client site. Basically when we try to test the app from localhost, we get the dreaded Global.asax parser error indicating it could not load the application global. Research indicates there are basically 4 possible reasons for this exception we're seeing: The solution hasn't been built. This clearly isn't the case since we can deploy it here and it runs fine on any machine we deploy to AND we had to build and publish the darn thing to deploy it anyway. The Global.asax namespace inheritance does not match the application global code file. Again we double checked this and since it runs just fine here that can't be the issue. Miscellaneous non-descript IIS/VS.NET mischief. Basically something get's wonky in IIS or VS.NET and the web server won't behave correctly for this application. We've done cleans and rebuilds, we've deleted virtual dir and recreated, and performed all of the IIS munging that we've found elsewhere online. Various combinations of IIS bounces, server reboots, virtual dir/application recreation, etc. Code level permissions issue. We've verified full trust in machine/web config in the framework directory, we've set .NET trust to full in IIS, we've granted Everyone full control on the directories just to hit it with the security hammer, etc. etc. The pertinent detials: Windows Server 2008 x64 IIS 7, 32 bit compatible app pool (app was written on 32 bit OS compiled for any cpu) App pool identity set to NetworkService Microsoft ASP.NET MVC 1.0 XCopy deployment We deployed another read-only app just fine. The significant difference in this app is the use of NHibernate and Log4Net which require full trust. Additionally, the actual project name of the web project differs from the default namespace however the Inherits namespace in Global.asax and the Global.asax.cs files match so this shouldn't be an issue. Anybody have any bright ideas? We're officially down to just the dim ones.

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  • Readonly SiteMapNodes in ASP.Net MVC?

    - by BenN
    I'm using MVCSiteMap as a SiteMapProvider for my MVC site. I have a node set up like so.... <mvcSiteMapNode key="1" title="Product" controller="Product" action="Display" isDynamic="true" dynamicParameters="id"> <mvcSiteMapNode key="11" title="More Details" controller="Product" action="MoreDetails" isDynamic="true" dynamicParameters="id" /> </mvcSiteMapNode> ...Which means I can go to ~/Product/Display/12 and get a correct sitemap node for product id 12 (in this case just Product. And I can go to ~/Product/MoreDetails/12 and get the sitemap path for the MoreDetails (Product - More Details). The problem is that the link back to Product in this sitemap doesn't work - it skips the id off the end, instead linking to ~/Product/Display/. Which sucks. I've discovered I can edit the Title of a node using SiteMap.CurrentNode.Title = "My New Title"; But... SiteMap.CurrentNode.ParentNode.Url = "http://www.google.com"; Doesn't set the Url for the parent node; it gets the default link described before. Any ideas how I can set the URL of a SiteMapNode?

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  • Existing LINQ extension method similar to Parallel.For?

    - by Joel Martinez
    The linq extension methods for ienumerable are very handy ... but not that useful if all you want to do is apply some computation to each item in the enumeration without returning anything. So I was wondering if perhaps I was just missing the right method, or if it truly doesn't exist as I'd rather use a built-in version if it's available ... but I haven't found one :-) I could have sworn there was a .ForEach method somewhere, but I have yet to find it. In the meantime, I did write my own version in case it's useful for anyone else: using System.Collections; using System.Collections.Generic; public delegate void Function<T>(T item); public delegate void Function(object item); public static class EnumerableExtensions { public static void For(this IEnumerable enumerable, Function func) { foreach (object item in enumerable) { func(item); } } public static void For<T>(this IEnumerable<T> enumerable, Function<T> func) { foreach (T item in enumerable) { func(item); } } } usage is: myEnumerable.For<MyClass>(delegate(MyClass item) { item.Count++; });

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  • keep HTMLformat after replace some text (using PHP and JS)

    - by Sadi
    I would like modify HTML like I am <b>Sadi, novice</b> programmer. to I am <b>Sadi, learner</b> programmer. To do it I will search using a string "novice programmer". How can I do it please? Any idea? Thank you Sadi More clarification: I get some nice reply with possible solution. But please keep posting if you have any idea in mind. I would like to more clarify the problem just in case anyone missed it. Main post shows the problem as an example scenario. 1) Now the problem is find and replace some string without considering the tags. The tags may shows up within a single word. String may contain multiple word. Tag only appear in the content string or the document. The search phrase never contain any tags. We can easily remove all tags and do some text operation. But here the another problem shows up. 2) The tags must be preserve, even after replacing the text. That is what the example shows. Thank you Again for helping

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  • Dependency Injection: How to maintain multiple configurations?

    - by Malax
    Hi StackOverflow, Lets assume we've build a system with a DI framework which is working quite fine. This system currently uses JMS to "talk" with other systems not maintained by us. The majority of our customers like the JMS approach and uses it according to our specification. The component which does all the messaging is injected with Spring into the rest of the application. Now we got the case that one customer cannot implement the JMS solution and want to use another messaging technology. Thats not a problem because we can simply implement a messaging service using this technology and inject it in the rest of the application. But how are we supposed to handle the deployment and maintenance of the configuration? Since the application uses Spring i could imagine to check in all the configurations i have for this application and the system administrator could start the application and passing the name of the DI XML file to specify which configuration should be loaded. But... it just don't feel right. Are there any solutions for such cases available? What are the best-practices you use? I could even imagine more complex scenarios which do not contain only one service substitution... Thanks a lot!

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  • SSIS - Bulk Update at Database Field Level

    - by Adam
    Hello, Here's our mission: Receive files from clients. Each file contains anywhere from 1 to 1,000,000 records. Records are loaded to a staging area and business-rule validation is applied. Valid records are then pumped into an OLTP database in a batch fashion, with the following rules: If record does not exist (we have a key, so this isn't an issue), create it. If record exists, optionally update each database field. The decision is made based on one of 3 factors...I don't believe it's important what those factors are. Our main problem is finding an efficient method of optionally updating the data at a field level. This is applicable across ~12 different database tables, with anywhere from 10 to 150 fields in each table (original DB design leaves much to be desired, but it is what it is). Our first attempt has been to introduce a table that mirrors the staging environment (1 field in staging for each system field) and contains a masking flag. The value of the masking flag represents the 3 factors. We've then put an UPDATE similar to... UPDATE OLTPTable1 SET Field1 = CASE WHEN Mask.Field1 = 0 THEN Staging.Field1 WHEN Mask.Field1 = 1 THEN COALESCE( Staging.Field1 , OLTPTable1.Field1 ) WHEN Mask.Field1 = 2 THEN COALESCE( OLTPTable1.Field1 , Staging.Field1 ) ... As you can imagine, the performance is rather horrendous. Has anyone tackled a similar requirement? We're a MS shop using a Windows Service to launch SSIS packages that handle the data processing. Unfortunately, we're pretty much novices at this stuff.

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  • How to deal with "partial" dates (2010-00-00) from MySQL in Django?

    - by Etienne
    In one of my Django projects that use MySQL as the database, I need to have a date fields that accept also "partial" dates like only year (YYYY) and year and month (YYYY-MM) plus normal date (YYYY-MM-DD). The date field in MySQL can deal with that by accepting 00 for the month and the day. So 2010-00-00 is valid in MySQL and it represent 2010. Same thing for 2010-05-00 that represent May 2010. So I started to create a PartialDateField to support this feature. But I hit a wall because, by default, and Django use the default, MySQLdb, the python driver to MySQL, return a datetime.date object for a date field AND datetime.date() support only real date. So it's possible to modify the converter for the date field used by MySQLdb and return only a string in this format 'YYYY-MM-DD'. Unfortunately the converter use by MySQLdb is set at the connection level so it's use for all MySQL date fields. But Django DateField rely on the fact that the database return a datetime.date object, so if I change the converter to return a string, Django is not happy at all. Someone have an idea or advice to solve this problem? How to create a PartialDateField in Django ? EDIT Also I should add that I already thought of 2 solutions, create 3 integer fields for year, month and day (as mention by Alison R.) or use a varchar field to keep date as string in this format YYYY-MM-DD. But in both solutions, if I'm not wrong, I will loose the special properties of a date field like doing query of this kind on them: Get all entries after this date. I can probably re-implement this functionality on the client side but that will not be a valid solution in my case because the database can be query from other systems (mysql client, MS Access, etc.)

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  • Is there stl and utf8 friendly C++ Wrapper for ICU, or other powerful unicode library

    - by artyom
    Hello, I need a good Unicode library for C++. I need Transformations in Unicode sensitive way. For example sort all strings in case insensitive way and get their first characters for index. Convert to upper and to lower various Unicode strings. Split text in reasonable position -- words that would work for Chinese and Japanese as well. Formatting numbers, dates in locale sensitive way (should be thread safe). Transparent support of utf8 (primary internal representation). As far as I know the best library is ICU. However, I can't find normal developer friendly API documentation with examples. Also as far as I see, it is not too friendly with modern C++ design, work with STL and so on. Like this std::string msg; unistring umsg.from_utf8(msg); unistring::word_iterator wi; for(wi=umsg.words().begin(),n=0;wi!=usmg.words().wi_end(),n<10;++wi,++n) ; msg=umsg.substr(umsg.words().begin(),wi).to_utf8(); cout<<_("Five 10 words are ")<<msg; Does anybody know good STL friendly ICU wrapper released under Open Source license preferred permissive like MIT or Boost, but others LGPLv2 compatible are ok as well. Is there another high quality library similar to ICU? Platform: UNIX/POSIX, Windows support is not required. Thanks, Artyom Edit: Unfortunatly I wasn't logged in so I can't make asnver accepted... I had attached the ansver by myself.

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  • TFS Folders - Getting them to work like Subversion "Trunk/Tags/Branches"

    - by Sam Schutte
    I recently started using Team Foundation Server, and am having some trouble getting it to work the way I want it to. I've used Subversion for a couple years now, and love the way it works. I always set up three folders under each project, Trunk, Tags, and Branches. When I'm working on a project, all my code lives under a folder called "C:\dev\projectname". This "projectname" folder can be made to point to either trunk, or any of the branches or tags using Subversion (with the switch command). Now that I'm using TFS (my client's system), I'd like things to work the same way. I created a "Trunk" folder with my project in it, and mapped "Project/Trunk/Website" to "c:\dev\Website". Now, I want to make a release under the "tags" folder (located in "Project/Tags/Version 1.0/Website", and TFS is giving me the following error when I execute the branch command: "No appropriate mapping exists for $Project/tags/Version 1.0/Website" From what I can find on the internet, TFS expects you to have a mapping to your hard drive at the root of the project (the "Project" folder in my case), and then have all the source code that lives in trunk, tags and branches all pulled down to your hard drive. This sucks because it requires way too much stuff on your hard drive, and even worse, when you are working in a solution in Visual Studio, you won't be able to pull down "Version 2.0" and have all your project references to other projects work, because they'll all be pointing to "trunk" folders under the main folder, not just the main folder itself. What I want to do is have the root "Project/Website" folder on my hard drive, and be able to have it point to (mapped to) either tags, branches, or trunk, depending on what i'm doing, without having to screw around with fixing Visual Studio project references. Ideas?

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  • Help making userscript work in chrome

    - by Vishal Shah
    I've written a userscript for Gmail Pimp.my.Gmail & i'd like it to be compatible with Google Chrome too. Now i have tried a couple of things, to the best of my Javascript knowledge (which is very weak) & have been successful up-to a certain extent, though im not sure if it's the right way. Here's what i tried, to make it work in Chrome: The very first thing i found is that contentWindow.document doesn't work in chrome, so i tried contentDocument, which works. BUT i noticed one thing, checking the console messages in Firefox and Chrome, i saw that the script gets executed multiple times in Firefox whereas in Chrome it just executes once! So i had to abandon the window.addEventListener('load', init, false); line and replace it with window.setTimeout(init, 5000); and i'm not sure if this is a good idea. The other thing i tried is keeping the window.addEventListener('load', init, false); line and using window.setTimeout(init, 1000); inside init() in case the canvasframe is not found. So please do lemme know what would be the best way to make this script cross-browser compatible. Oh and im all ears for making this script better/efficient code wise (which is sure there is)

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  • Porting WebGL game to iPhone's native OpenGL?

    - by ArtPulse
    We are developing a web game that uses WebGL for the two biggest parts of it. Working with HTML / CSS was too slow and too limited, so it's off the table. Thing is, iOS does not support WebGL publicly just yet, only on iAd. It is my guess Apple will eventually support it once the security issues they and Microsoft claim it has are fixed, and looks stable enough. Problem is, if Apple does not do this by the release of the next mayor iOS version, then we will have in our hands a mobile WebGL game that does not run. 6 months of development and testing to waste. So, questions: If that was the case, how viable (regarding amount of time) is it porting the WebGL part of the game to native iPhone OpenGL? I'm afraid that porting will take longer than the development of the game itself. I saw posts on Stack Overflow (like this) that suggested, on Android, adding the OpenGL interface manually to a WebKit element. It'd be slower than native. But either way... Is this something that could be accepted in the AppStore? Apple is very restrictive with these kind of stuff... Thank you all for your time!

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  • Best strategy for synching data in iPhone app

    - by iamj4de
    I am working on a regular iPhone app which pulls data from a server (XML, JSON, etc...), and I'm wondering what is the best way to implement synching data. Criteria are speed (less network data exchange), robustness (data recovery in case update fails), offline access and flexibility (adaptable when the structure of the database changes slightly, like a new column). I know it varies from app to app, but can you guys share some of your strategy/experience? For me, I'm thinking of something like this: 1) Store Last Modified Date in iPhone 2) Upon launching, send a message like getNewData.php?lastModifiedDate=... 3) Server will process and send back only modified data from last time. 4) This data is formatted as so: <+><data id="..."></data></+> // add this to SQLite/CoreData <-><data id="..."></data></-> // remove this <%><data id="..."><attribute>newValue</attribute></data></%> // new modified value I don't want to make <+, <-, <%... for each attribute as well, because it would be too complicated, so probably when receive a <% field, I would just remove the data with the specified id and then add it again (assuming id here is not some automatically auto-incremented field). 5) Once everything is downloaded and updated, I will update the Last Modified Date field. The main problem with this strategy is: If the network goes down when I am updating something = the Last Modified Date is not yet updated = next time I relaunch the app, I will have to go through the same thing again. Not to mention potential inconsistent data. If I use a temporary table for update and make the whole thing atomic, it would work, but then again, if the update is too long (lots of data change), the user has to wait a long time until new data is available. Should I use Last-Modified-Date for each of the data field and update data gradually?

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  • ODBC and NLS_LANG

    - by Michael S.
    Let's say that I've created two different program executables, e.g. in C++. For some reason, the two programs internals representation of text are different from each other. Let's say the first program is using text representation A and the other text representation B. It could be a specific 8-bit ANSI codepage, Unicode/UTF-8 or Unicode/UTF-16 or whatever. Now each program want to communicate text (add/retrieve data) to/from the same database table on a (database) server. Each program communicates with the database through ODBC. So the programs do not know what database system they they are communicating with. In this specific case through the database is actually a Oracle RDMS database and the database server administrator has setup the database to use UTF-8. On the system on which the programs are running an appropriate ODBC driver is available, so that the programs can connect through ODBC. Each program will treat and convert from the ODBC data type SQL_C_CHAR to its internal text representation appropriately. I assume that the programs cannot do no other than to assume a specific encoding returned for SQL_C_CHAR text. If not the programs has to be told which encoding that is. For Oracle, I know that the NLS_LANG environment variable can be used on the client. I assume it affects the ODBC driver (related to SQL_C_CHAR) to convert from a specific encoding (as given by NLS_LANG) to the internal encoding of the database (in this example UTF-8) and vice-versa. If the machine running my programs are having a NLS_LANG this setting will affect the byte sequences returned for SQL_C_CHAR so my programs cannot suddenly assume a specific encoding for the text returned via SQL_C_CHAR. Is it possible to setup the ODBC connection (preferably programmatically at runtime), so that it takes care of text conversions appropriately for the two programs, i.e. from/to representation to/from UTF-8 and from/to representation B to/from UTF-8? Regards, /Michael PS. As the programs are connecting through ODBC I don't think it would be nice that they should now anything about NLS_LANG as this is a Orcacle specific environment variable.

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  • Save PyML.classifiers.multi.OneAgainstRest(SVM()) object?

    - by Michael Aaron Safyan
    I'm using PYML to construct a multiclass linear support vector machine (SVM). After training the SVM, I would like to be able to save the classifier, so that on subsequent runs I can use the classifier right away without retraining. Unfortunately, the .save() function is not implemented for that classifier, and attempting to pickle it (both with standard pickle and cPickle) yield the following error message: pickle.PicklingError: Can't pickle : it's not found as __builtin__.PySwigObject Does anyone know of a way around this or of an alternative library without this problem? Thanks. Edit/Update I am now training and attempting to save the classifier with the following code: mc = multi.OneAgainstRest(SVM()); mc.train(dataset_pyml,saveSpace=False); for i, classifier in enumerate(mc.classifiers): filename=os.path.join(prefix,labels[i]+".svm"); classifier.save(filename); Notice that I am now saving with the PyML save mechanism rather than with pickling, and that I have passed "saveSpace=False" to the training function. However, I am still gettting an error: ValueError: in order to save a dataset you need to train as: s.train(data, saveSpace = False) However, I am passing saveSpace=False... so, how do I save the classifier(s)? P.S. The project I am using this in is pyimgattr, in case you would like a complete testable example... the program is run with "./pyimgattr.py train"... that will get you this error. Also, a note on version information: [michaelsafyan@codemage /Volumes/Storage/classes/cse559/pyimgattr]$ python Python 2.6.1 (r261:67515, Feb 11 2010, 00:51:29) [GCC 4.2.1 (Apple Inc. build 5646)] on darwin Type "help", "copyright", "credits" or "license" for more information. import PyML print PyML.__version__ 0.7.0

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  • Adding Control to Container Control that is in User Control - How to properly initialize?

    - by DougJones
    Let's say I have a user control MyUserControl, which has a container control (it's a server control, but it could just be a Panel) and a dropdownlist. The dropdownlist is not in the container control initially. In it's code-behind, I am overriding OnInit and creating the user control, which includes populating a dropdownlist and adding that dropdownlist to my container control. I have a public property Year, which is an int. Based on the value of Year, I want to populate the dropdownlist. The problem is that in OnInit, year is always 0. On the page Init, I am setting year, but that doesn't run until AFTER the control's Init runs. If I try to set the value on PreInit on the page, the page hasn't initialized the control and I get invalid null reference when setting a value to the control. My question is: How can I properly initialize the control? How can I set the value on the page, before the control actually gets initialized? If I move the control's code to OnLoad, it'll work until I have to do a postback. In this case I need to, though!

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  • LINQ to XML Query Help

    - by cw
    Hello, I am trying to get a "diff" of 2 xml documents and end up with a list of Elements that are different. Below is the XML, I was wondering if anyone can assist. In the case below, I want the list to contain the "file2.xml" element and the "file3.xml" element because they are both different or new than the first xml document. Thanks in advance! <?xml version="1.0" encoding="utf-8" ?> <versioninfo> <files> <file version="1.0">file1.xml</file> <file version="1.0">file2.xml</file> </files> </versioninfo> <?xml version="1.0" encoding="utf-8" ?> <versioninfo> <files> <file version="1.0">file1.xml</file> <file version="1.1">file2.xml</file> <file version="1.0">file3.xml</file> </files> </versioninfo>

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