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  • Only send populated object properties over WCF?

    - by dlanod
    I have an object that is being sent across WCF that is essentially a property holder - it can potentially have a large number of properties, i.e. up to 100, but in general only a small subset will be set, up to 10 for instance. Example: [DataContract(Namespace = "...")] public class Monkey { [DataMember] public string Arms { get; set; } [DataMember] public string Legs { get; set; } [DataMember] public string Heads { get; set; } [DataMember] public string Feet { get; set; } [DataMember] public string Bodies { get; set; } /* repeat another X times */ } Is there a way to tell WCF to only send the populated properties over the wire? It seems like a potential waste of bandwidth to send over the full object.

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  • best way to reference business objects from presentation layer..?

    - by Vytas999
    I want to develop an enterprise app that includes a WindowsForms presentation layer, middle-tier components for business logic and data access, and a MsSQL Server database. Middle-tier components should contain some business objects and will be called from presentation layer using .NET Remoting. Whitch is the best way (and why) to reference these business objects from presentation layer? a) Create class library project, implementing business objects. Reference this project from presentation layer and middle-tier layer. b) Create interface library project defining business objects. Create class library project implementing interfaces. Reference class library project from middle-tier layer. Reference interface library project from presentation layer. c) Create separate class library projects for middle-tier and presentation layer. Reference corresponding project from presentation layer.

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  • Redirecting from ASP.NET WebForms to MVC

    - by Paul Gordon
    Hi there, We have a large existing ASP.NET WebForms application, but we are now moving over to MVC. Rather than go through a painful process of trying to integrate MVC into the existing app, we're looking at creating a brand new VS project to completely isolate the new code. As a first step, we are wanting to use the existing login process of the WebForms app, then redirect over to the MVC app. Does anyone know of an easy way to do this (i.e. redirect from a WebForms project to the MVC project, in the same VS solution)? All the information I've found so far suggests either starting from scratch in MVC, or combing MVC into the existing Webforms project - neither of which is very feasible. Many thanks, Paul

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  • How to setup matlab for parallel processing on Amazon EC2?

    - by JohnIdol
    I just setup a Extra Large Heavy Computation EC2 instance to throw it at my Genetic Algorithms problem, hoping to speed up things. This instance has 8 Intel Xeon processors (around 2.4Ghz each) and 7 Gigs of RAM. On my machine I have an Intel Core Duo, and matlab is able to work with my two cores just fine. On the EC2 instance though, matlab only is capable of detecting 1 out of 8 processors. Obviously the difference is that I have my 2 cores on a single processor, while the EC2 instance has 8 distinct processors. My question is, how do I get matlab to work with those 8 processors? I found this paper, but it seems related to setting up matlab with multiple EC2 instances, which is not my problem. Any help appreciated!

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  • Can Castle Monorail and ASP.NET MVC coexist in the same project?

    - by Matthew
    I have a large Monorail project that we have decided we are going to move over to ASP.NET MVC. Most of the underlying system will likely be reusable, but the Controllers will of course have to be rewritten, and proabably at least some of the views. It strikes me that a low risk avenue for this is gradually convert well defined sections of the system to MVC, and perhaps as MVCContrib Portable Areas. Does anyone know if there are any non-obvious gotchas that I am likely to run into with this approach? Thanks for your input, Matthew

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  • zend framework auto switch production staging test .. etc

    - by user284503
    What do I change to switch from production to staging.. etc.. and where.. Bootstrap ? Also, Curious if anyone has configured their Zend Framework to automatically switch from production, staging, test.. etc based on Host information.. example.. if (hostname = 'prodServer') ... blah if (hostname = 'testServer') ... blah I'm new to Zend but I typically configure my projects to automatically switch run environments based on the host information. thanks

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  • Loading Eclipse plug-ins from source .jar without project file

    - by Christian P.
    I have a number of plug-ins meant for the OSGi framework. They have been bundled in individual .jars containing the source .java files as well as the needed MANIFEST.MF and plugin.properties files. The problem is, I wish to edit these. What is the best/easiest way to import them as plug-ins into Eclipse so that I can continue as if I had been handed an eclipse project with source files (instead of the .jar files). For those interested, the files can be found here: https://sourceforge.net/projects/domoticdog/files/ (Dog2.0.8_source).

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  • Rotating images + content - jQuery or MooTools?

    - by Lenwood
    I've found a feature on two different websites that I'd like to include on one of my web projects, but I can't figure out how they're doing it. I think they're using either jQuery or mootools, but I'm not sure. http://www.x-plane.com/index_desktop.html I'm new here so I don't have the reputation to post the other link, but if you do a Google search for "Andrews Institute of Orthopaedics" its the top result. I'll see if I can answer a few questions to earn my keep. The thing that I like about these is that the images and text (including links) are all rotated together. I've done a few web searches related to cycle, rotate and slide but it's not coming together for me. Can anyone give me a nudge in the right direction?

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  • Using DockPanel Suite's XML saving with My.Settings

    - by Cyclone
    In vb.net, how can I use SaveAsXML and LoadFromXML (DockPanel Suite functions) with My.Settings? I know there is a way to save it to a stream, but I don't know enough about System.IO to do this. DockPanel Suite: http://sourceforge.net/projects/dockpanelsuite/ I would very much prefer to store configuration using My.Settings instead of as an XML file. Thanks for the help! EDIT: Since the only person to answer so far has since deleted their answer, I feel I should explain further: Those two methods can both accept a stream object, but I have not used System.IO enough to know how to properly initialize a stream, let alone get a string out of a stream. EDIT: Googling has gotten me nowhere. EDIT: Still waiting for this. I've tried everything...

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  • release does not free up memory in low-memory condidtion

    - by user322945
    I am trying to follow the Apple's recommendation to handle low-memory warnings (found in Session 416 of WWDC 2009 videos) by freeing up resources used by freeing up my dataController object (referenced in my app delegate) that contains a large number of strings for read from a plist: - (void)applicationDidReceiveMemoryWarning:(UIApplication *)application { [_dataController release]; _dataController = nil; NSLog([NSString stringWithFormat:@"applicationDidReceiveMemoryWarning bottom... retain count:%i", [_dataController retainCount]]); } But when I run ObjectAlloc within Instruments and simulate a Low-Memory Condition, I don't see a decrease in the memory used by my app even though I see the NSLog statements written out and the retain count is zero for the object. I do pass references to the app delegate around to some of the view controllers. But the code above releases the reference to the _dataController object (containing the plist data) so I would expect the memory to be freed. Any help would be appreciated.

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  • Spatial index for geo coordinates?

    - by Michael Borgwardt
    What kind of data structure could be used for an efficient nearest neighbor search in a large set of geo coordinates? With "regular" spatial index structures like R-Trees that assume planar coordinates, I see two problems (Are there others I have overlooked?): Wraparound at the poles and the International Date Line Distortion of distances near the poles How can these factors be allowed for? I guess the second one could compensated by transforming the coordinates. Can an R-Tree be modified to take wraparound into account? Or are there specialized geo-spatial index structures?

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  • ASN1 out of memory. during a signedCMS.decode

    - by JL
    I am having a problem using the signedCMS.decode routine. See the code below. The error seems to occur when the file size is too big in this case 11MB. private static void RemoveZfoSignature(string zfoFileName) { byte[] fileContents = File.ReadAllBytes(zfoFileName); var contentInfo = new ContentInfo(fileContents); var signedCms = new SignedCms(contentInfo); // This line throws the error 100% of the time signedCms.Decode(fileContents); signedCms.RemoveSignature(0); byte[] outfile = signedCms.ContentInfo.Content; string outFileName = zfoFileName.Replace(".zfo", "_tmp.zfo"); File.WriteAllBytes(outFileName, outfile); } Here is the exact error: "System.Security.Cryptography.CryptographicException: ASN1 out of memory. at System.Security.Cryptography.Pkcs.SignedCms.OpenToDecode(Byte[] encodedMessage, ContentInfo contentInfo, Boolean detached) at System.Security.Cryptography.Pkcs.SignedCms.Decode(Byte[] encodedMessage) at ConsoleApplication2.Program.RemoveZfoSignature(String zfoFileName) in C:\\Users\\\\Documents\\Visual Studio 2008\\Projects\\ConsoleApplication2\\ConsoleApplication2\\Program.cs:line 30" Any idea on how to fix this?

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  • UIKit/UiKit.h missing, on a newer version

    - by letsee
    Dear Everyone, I've a application which has been written for 2.1. Now I'm running that app on xcode 3.2.5 and SDK 4.2. Here's the problem, When I try to Build and Run, I get the following error: UIKit.framework/UIKit.h: No such file or directory In file included from users/.../classes/Radio.m UIKit.framework/UIKit.h: no such file or directory in users/.../classes/Radio.h I don't know why I'm facing that error, because the UIKit.framework is included in my projects "Frameworks" group. I've updated the OS target and other similar options, and application runs clearly without UIKit. I would appreciate it if anyone could help me through. Regards,

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  • Where to place unit test project

    - by Karsten
    I'm thinking about where to put the unit/integration test project. I follow the 1 test project pr. project convention I can think of 3 ways, that all seems good to me, which make it kind of hard to choose :-) Test project is put under a Tests sub folder to the project it tests. Test project is put next to the project it tests, in a "project".Tests folder. I believe this is what Roy Osherove recommends. Put all test projects in a sub folder in the root. e.g. \Tests\"project".Tests Something else? What you choose and why?

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  • Using Git with VB6

    - by Gavin Schultz
    Our company has a large codebase in VB6, and we currently use VSS which, for all that we hate about it, at least integrates into the VB6 IDE. My own team, which is using .NET, are now looking into alternative SCMs like my personal favourite, Git. With Git Extensions, it seems we will be able to integrate Git commands into the Visual Studio IDE pretty well. However, the question has been asked: could Git be used for our VB6 codebase too? Of course I assume the files themselves would work fine in git repositories, but no doubt developers would complain if they had to use the command-line to do all their source control. But has anyone had any experience using VB6 and Git? Any integration available from within the VB6 IDE? Or is it perhaps not that much of a hassle to not have the IDE integration? And do I get a badge for being the first to create the absurd tag combination of [vb6] and [git]?

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  • Bullet Physics, when to choose which DynamicsWorld?

    - by Sqeaky
    I have a few general questions about the bullet physics library. Here is my current understanding in a nutshell: btDiscreteDynamicsWorld - Simplest physics world, only handles rigid bodies, maybe it has better performance. btSoftRigidDynamicsWorld - The only physics world that can work with large jello moulds btContinuousDynamicsWorld - If you have really fast objects this will prevent them from prenetrating each other or flying through each other, but is otherwise like a btDiscreteDynamicsWorld. Is my understanding of the btDiscreetDynamicsWorld, btContinuousDynamicsWorld and btSoftRigidDynamicsWorld classes in terms of functionality, purpose, and performance correct? Why does the user manual recommend the btDiscreteDynamicsWorld class? btSoftRigidDynamicsWorld appears to be the only world that can handle soft bodies, so what if we wanted Continuous Physics integration and Soft bodies? How fast is fast enough to consider using a btContinuousDynamicsWorld, and what are the drawbacks of using one? Edit: My Buddy Mako also posted this question on The Bullet forums: http://www.bulletphysics.org/Bullet/phpBB3/viewtopic.php?f=9&t=4863

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  • iOS Efficiency File Saving Efficiency

    - by Guvvy Aba
    I was working on my iOS app and my goal is to save a file that I am receiving from the internet bit by bit. My current setup is that I have a NSMutableData object and I add a bit of data to it as I receive my file. After the last "packet" is received, I write the NSData to a file and the process is complete. I'm kind of worried that this isn't the ideal way to do it because of the limitations of RAM in a mobile device and it would be problematic to receive large files. My next thought was to implement a NSFileHandle so that as the file arrives, it would be saved to the disk, rather than the virtual memory. In terms of speed and efficiency, which method do you think will work decently on an iOS device. I am currently using the first, NSMutableData approach. Is it worth changing my app to use the NSFileHandle? Thanks in advance, Guvvy

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  • Ubuntu: What gcc to use when crosscompiling for the STM32 (Cortex-M3)?

    - by Johan
    Hi I'm trying to get started with the STM32 (Cortex-M3) and my plan is get this working from Ubuntu (9.04 / AMD64). To start with I got the Olimex stm32-h103 header board and the Olimex ARM-USB-OCD jtag, and on to of that I will probably use OpenOCD, gcc and Eclipse. But right now I'm looking into what version of gcc to use and how to setup that to be able to crosscompile the code. There seem to be some arm projects out there but I don't know what to start with, can somebody push me in the right direction? Thanks Johan Update: There seems almost to be what I want from codesourcery, but they seem to focus on IA32 and not AMD64. However in the supported devices I find the Cortex-M3 ARM EABI, ARM M-profile Simulator -mcpu=cortex-m3 -mthumb Update: There is a possibility to install IA32 on AMD64, so maybe the marked answer is obsolete already. Update: Found this link about crosscompile for the Cortex-M3. http://www.eluaproject.net/en_tc_cortex.html http://fanplastic.org/gcc-for-arm-eabi/

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  • How to import classes into other classes within the same file in Python

    - by Chris
    I have the file below and it is part of a django project called projectmanager, this file is projectmanager/projects/models.py . Whenever I use the python interpreter to import a Project just to test the functionality i get a name error for line 8 that FileRepo() cannot be found. How Can I import these classes correctly? Ideally what I am looking for is each Project to contain multiple FileRepos which each contain and unknown number of files. Thanks for any assistance in advance. #imports from django.db import models from django.contrib import admin #Project is responsible for ensuring that each project contains all of the folders and file storage #mechanisms a project needs, as well as a unique CCL# class Project(models.Model): ccl = models.CharField(max_length=30) Techpacks = FileRepo() COAS = FileRepo() Shippingdocs = FileRepo() POchemspecs = FileRepo() Internalpos = FileRepo() Finalreports = FileRepo() Batchrecords = FileRepo() RFPS = FileRepo() Businessdev = FileRepo() QA = FileRepo() Updates = FileRepo() def __unicode__(self): return self.ccl #ProjectFile is the file object used by each FileRepo component class ProjectFile(models.Model): file = models.FileField(uploadto='ProjectFiles') def __unicode__(self): return self.file #FileRepo is the model for the "folders" to be used in a Project class FileRepo(models.Model): typeOf = models.CharField(max_length=30) files = models.ManyToManyField(ProjectFile) def __unicode__(self): return self.typeOf

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  • Professional jQuery based Combobox control?

    - by splattne
    Are there any professional Combobox controls (dropdown list with autosuggestion) based on the jQuery library? It should be able to handle large datasets and have some skinning options. A multi-column result list would be great too. I'm working with ASP.NET, but it's a not a problem if I had to write a wrapper for it. I'm already using a third-party control, but I ran into some compatibilty issues between two vendor's controls. Well, I want to get rid of this kind of dependencies.

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  • Supporting multiple screen sizes with Android using ImageButtons

    - by droidy
    I've read the Android documentation: http://developer.android.com/guide/practices/screens_support.html but still have some questions. I'm trying to design a music application which basically has images of the instrument (ImageButton) that play a sound when clicked. However, I'm confused about how to have the ImageButtons scale to fit all the different screen sizes and how to position them. Which layout is best used for needing to position ImageButtons in specific locations on the screen? (i.e. cymbals on a drum set) FrameLayout, RelativeLayout? If I only really care about medium and large screens, do I need to create different resources (images) for both as well as a different XML layout to position them? I'm trying to find the simplest way to do this without having to create a separate layout XML file for positioning/size and separate image resources for each screen. Any guidance is greatly appreciated. Thanks!

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  • Calculating determinant by hand

    - by ldigas
    Okey, this is only half programming, but let's see how you are on terms with manual calculations. I believe many of you did this on your university's while giving "linear systems" ... the problem is it's been so long I can't remember how to do it any more. I know quite a few algorithms for calculating determinants, and they all work fine ... for large systems, where one would never try to do it manually. Unfortunatelly, I'm soon going on an exam, where I do have to calculate it manually, up to the system of 5. So, I have a K(omega) matrix that looks like this: [2-(omega^2)*c -4 2 0 0] [-2 5-(omega^2)*c -4 1 0] [1 -4 6-(omega^2)*c -4 1] [0 1 -4 5-(omega^2)*c -2] [0 0 2 -4 2-(omega^2)*c] and I need all the omegas which satisfy the det[K(omega)]=0 criteria. What would be a good way to calculate it so it can be repeated in a manual process ?

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  • "My account" or "Your account" labels

    - by Ferdy
    I have somewhat of a strange question that is not really technical, but I do hope to collect meaningful advice. I'm building a large web application, basically a photo sharing community site. As part of this site, logged-in users can go to their profile, from which they can see their own things (images, comments, votes) as well as edit their details and preferences. Users can also see profiles of others users (their images, comments, votes), but of course not edit their details. The question I have is simple but it keeps bothering me: What to call the personal links and content of a user? Should they be named "Your": Your images Your profile ... ...or "My": My images My profile ...or perhaps named, even if you're logged in: Fledder's images Fledder's profile As unimportant as it may sounds, I'm really looking for advice in this area. I'm particularly interested in any standards, why an option is preferred, and in which contexts it is preferred.

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  • How do you use pip, virtual_env and Fabric to handle deployement?

    - by e-satis
    What are your settings, your tricks, and above all, your work flow? These tools are great but they are still no best practices attached to their usage, so I don't know what is the most efficient way to use them. Do you use pip bundles or always download? Do you set up Apache/Cherokee/MySQL by hand or do you have a script for than. Do you put everything in virtual_env and use --no-site-package? Do you use one virtual_env for several projects? What do you use Fabric for (which part of your deployment do you script)? Do you put your Fabric scripts in on the client or the server? How do you handle database and media file migration? Do you even need a build tool such as SCons? What are the steps of your deployment? How often do you perform each of them? etc.

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  • Need help with basic ASM

    - by Malfist
    Hello, I'm trying to convert some c code to assmebly, and I need some help. char encode(char plain){ __asm{ mov eax, plain add eax, 2 ret } //C code /* char code; code = plain+2; return code;*/ } First problem is that visual studio complains that the register size doesn't match, i.e. eax is too small/large for char. I was under the impression that they were both DWORDs. Also, if I leave the variable in eax, and ret in assembly, it'll actually return that variable, right?

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