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  • Is there a way to export an XSD schema from a DataContract

    - by Eric
    I'm using DataContractSerializer to serialize/deserialize my classes to/from XML. Everything works fine, but at some point I'd like to establish a standard schema for the format of these XML files independent of the actual code. That way if something breaks in the serialization process I can always go back and check what the standard schema should be. Or if I do need to modify the schema the modification is an explicit decision rather then just a later affect of modifying my code. In addition, other people may be writing other software that may not be .NET based that would need to read from these XML files. I'd like to be able to provide them with some kind of documentation of the schema. Is there some relationship between a DataContract and an XSD schema. Is there a way to export the DataContract attributes in classes as an XSD schema?

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  • WPF Binding issues

    - by Nitin Chaudhari
    I have WPF window which binds a local Dependency property to a property of my usercontrol. So now I see the value which the window gave me in my usercontrol. I achieve this by setting DataContext of window to the window itself Now once the window is loaded i set the DataContext of usercontrol to a ViewModel class, and at some point of time(based on user action) the control changes values in the control. All fine so far. But now the changed value is not reflected in Windows dependency property. How I can resolve this issue?

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  • How do I perform an HSL transform on a texture?

    - by Mason Wheeler
    If I have an OpenGL texture, and I need to perform HSL modifications on it before rendering the texture, from what I've heard I need a shader. Problem is, I know nothing about shaders. Does anyone know where I would need to look? I want to write a function where I can pass in a texture and three values, a hue shift in degrees, and saturation and lightness multipliers between 0 and 2, and then have it call a shader that will apply these transformations to the texture before it renders. The interface would look something like this: procedure HSLTransform(texture: GLuint; hShift: integer; sMult, lMult: GLfloat); I have no idea what's supposed to go inside the routine, though. I understand the basic math involved in HSL/RGB conversions, but I don't know how to write a shader or how to apply it. Can someone point me in the right direction? Delphi examples preferred, but I can also read C if I have to.

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  • SQL 2008 Database tuning advisor won't start

    - by Andrew Hancox
    For some reason I can't get DTA to connect to my development machine. It connects to a remote DB just fine but when I point it to my dev machine I get an error saying: Failed to initialize MSDB database for tuning (exit code: -1073741819). I'm pretty sure it's not a permissions issue since I've used profiler to capture what it's doing and all of the commands it's run so far look fine and are being run under my account which is associated with the sysadmin role, when I run them in sql management studio they go through fine. I'm pretty convinced that the problem is related to creating the objects in MSDB that are used by DTA but I tried creating these manually (I found scripts on the web) and it just seems to push the problem along the line slightly. I'm going out of my mind - have even tried reinstalling SQL but that's not fixed it. I'm using SQL 2008 with SP1 (10.0.2531) on windows server 2008 (patched up to date). SAVE ME!!!!!

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  • Python 2 vs Python 3 and Tutorial

    - by MR-J
    Hey guys. I am 12 years old and I have had a small amount of experience with BASIC. I am thinking about learning Python, but I’m not sure if I should learn the 2.6 version or the 3.0 version. I don’t really care about the support for libraries or anything along those lines quite yet. I was wondering if it is easier to code in 3.0 than 2.6. And is it more fun and productive? I would also appreciate it if you could point me in the right direction for a simple yet complete tutorial that is easy to understand and possible teaches Object Oriented Programing. I don’t really care if it teaches OOP or not. One more thing; if I do learn python, is it possible to easily compile a python source code file into a 'stand-alone' .exe file for Windows? I really liked that functionality in BASIC. Thanks!!!!

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  • Writing a Windows NT subsystem

    - by Niten
    I'd like to try writing my own minimal NT subsystem on Windows 7 for purely educational purposes -- something like a bare-bones equivalent of the posix.exe in Microsoft's Subsystem for Unix-based Applications. But I can't seem to find any public documentation on this topic. What API does a subsystem need to implement? How does it get registered with Windows? How does the subsystem image need to be built (what flags need to be set in the PE header, etc.)? I'd most like to find a book or web site with an overview of the entire subject, or even the source code for a "hello world" NT subsystem that someone else has written. But anything at all would be appreciated if you can point me in the right direction here...

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  • Some basic questions about Django, Pyjamas and Clean URLs

    - by Acidburn2k
    I am farily new to the topic, but I am trying to combine both Django and Pyjamas. What would be the smart way to combine the two? I am not asking about communication, but rather about the logical part. Should I just put all the Pyjamas generated JS in the base of the domain, say http://www.mysite.com/something and setup Django on a subdirectory, or even subdomain, so all the JSON calls will go for http://something.mysite.com/something ? As far as I understand now in such combination theres not much point to create views in Django? Is there some solution for clean urls in Pyjamas, or that should be solved on some oy,ther level? How? Is it a standard way to pass some arguments as GET parameteres in a clean url while calling a Pyjamas generated JS?

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  • Why can't I install MVC (1 or 2) with Visual Web Developer Express 2008 RC1?

    - by Stefan
    Hi all, I have installed VWD 2010 Express and love MVC2. I have an existing ASP.NET 3.5 website that I'd like to redevelop with ASP.NET MVC2 under VWD 2008 with the 3.5 framework (the host only supports .Net 3.5, and Express 2010 doesn't support targeting of .Net framework versions) I am however unable to install MVC2 with VWD 2008. The installer (for 2008 SP1) says it has installed, but the MVC project templates don't show up when I create a new project. I also had this problem originally with MVC1 which is why I gave up at some point and just created it as a normal ASP.NET website. I tried uninstalling and installing VWD 2008, and then installing MVC2, but this didn't solve the problem. Does anyone know why this problem occurs, or how to solve it? Or is there a way to add these templates and the tooling manually?

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  • Python regular expression implementation details

    - by Tom
    A question that I answered got me wondering: How are regular expressions implemented in Python? What sort of efficiency guarantees are there? Is the implementation "standard", or is it subject to change? I thought that regular expressions would be implemented as DFAs, and therefore were very efficient (requiring at most one scan of the input string). Laurence Gonsalves raised an interesting point that not all Python regular expressions are regular. (His example is r"(a+)b\1", which matches some number of a's, a b, and then the same number of a's as before). This clearly cannot be implemented with a DFA. So, to reiterate: what are the implementation details and guarantees of Python regular expressions? It would also be nice if someone could give some sort of explanation (in light of the implementation) as to why the regular expressions "cat|catdog" and "catdog|cat" lead to different search results in the string "catdog", as mentioned in the question that I referenced before.

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  • perl TemplateToolkit - Can't locate object method "new" via package

    - by simnom
    Hi, I have inherited a web project that is perl based and I'm attempting to set up a local testing server so changes can be made internally to the project. The server architecture Ubuntu 9.10 php 5.2.10 mysql 5.1.37 perl 5.10.0-24ubuntu4 All the dependent modules and packages are installed such as DateTime.pm, TemplateToolkit.pm but running the application throws the following error message: Can't locate object method "new" via package "Template" (perhaps you forgot to load "Template"?) at ../lib//KPS/TemplateToolkit.pm line 51 The code block that this refers to is: sub new { return Template->new( INCLUDE_PATH => $KPS::Config::templatepath, ABSOLUTE => 1, DEBUG => 1, ); } If anybody is able to shed any light on this or point me in the right direction it would be greatly appreciated. Thanks Simnom

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  • Facebook Iframe App with multiple pages in Safari

    - by Bathan
    I have a facebook Iframe application with multiple PHP pages in it. I have some links that point relatively to the files inside my "iframe folder". This works just fine In FFox, IE and Chrome. The problem here is that in Safari the links are not working at all. What happens when you click on a link is that the whole page (parent AND iframe) gets loaded inside the iframe. Anyone has any Idea why this could be happening? Thanks in advance!

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  • Automatically call httpservice.send

    - by Matt Robinson
    I have an application that displays the data from 3 xml files (auto generated from SQL table) using httpservices to get them. The first xml file is small and contains around 30 items, the second and thrid contain around 200-300 items each. The first dataset loads quickly and is invoked on creationComplete. The second and third are called from click events and take quite a few seconds to load. A user of the application will take at least 2-3 minutes reading the data from the first dataset so is there a way I can have the httpservice.send for the second and third xml files called automatically, straight after the first file has finished loading to be able to show the first dataset immediateley and get rid of the waiting times between dataset views. An answer doesnt need to be specific, just a point in the right direction would be great. All answers greatly appreciated Matt

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  • Getting XML parse error in coldfusion. Can the packet returned be validated?

    - by jeff
    Getting an error on occasion on a specific CF page. Offending code listed below. Very odd because when I rebooted CF it went away. Can the XML be checked via XMLValidate to prevent this from happening? Is this some sort of CF bug since the error disappeared after reboot of CF? I have a feeling that the error will resurface at some point. An error occured while Parsing an XML document. The element type "meta" must be terminated by the matching end-tag "". <cfhttp method="get" url="http://bs.mysite.com/webservice/rec/get.sbs?customerId=345S4BE8x&itemId=#product_id#&number=20&ruleId=#product.location_tab_accessories#"> <cfset result = xmlParse(cfhttp.FileContent)> <cfset recs = xmlSearch(result, "/result/thsite/site/itemId")>

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  • ASP C# Web Developer default login, getting user ID session value

    - by m3n
    I've used the built-in wizard in Visual Web Developer 2008 to create a simple login system. I'd like to get hold of the logged in user's ID, but I'm not sure how. Peeking in the ASPNETDB.MDF in the table aspnet_Users, the column appears to be called "UserId". I gave it a go: Response.Write("ID: " + Session["UserId"]); but it's coming up blank. How do I do this? (This is not for a live project, no need to point out the sillyness in using the wizard.) Thanks

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  • form update too expensive to be executed in Winform.Timer.Tick

    - by Abruzzo Forte e Gentile
    Hi all I have a WinForm drawing a chart from available data. I programmed it so that every 1 secong the Winform.Timer.Tick event calls a function that: will dequeue all data available will add new points on the chart Right now data to be plotted is really huge and it takes a lot of time to be executed so to update my form. Also Winform.Timer.Tick relies on WM_TIMER , so it executes in the same thread of the Form. Theses 2 things are making my form very UNresponsive. What can I do to solve this issue? I thought the following: moving away from usage of Winform.Timer and start using a System.Threading.Timer use the IsInvokeRequired pattern so I will rely on the .NET ThreadPool. Since I have lots of data, is this a good idea? I have fear that at some point also the ThreadPool will be too long or too big. Can you give me your suggestion about my issue? Thank you very much! AFG

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  • Basic Ruby on Rails Question about routing

    - by Acidburn2k
    I have a controller without any related model. This controller is to span some informations from various models. I have lots of actions there, which define certain views on the page. What would be the best way to organize routes for this controller. What I would like is to have /dashboard/something point to any action in the dashboard controller. Not actions like new/edit but arbitrary (showstats, etc). With trail and error I made something like this: map.dashboard 'dashboard/:action', :controller => 'dashboard', :action => :action Now it is possible to access those url using helper: dashboard_url('actionname') This approch seems to be working ok, but is this the way to go? I am not quite sure understand, how are the helper method names generated. How to generate same helper names as in basic controllers "action_controller_url" ? That would be more generic and made the code more consistent. Thanks in advance.

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  • Flash ActionScript 2.0 problem with the object's _visible parameter

    - by GMan
    Hey guys, I've been trying to build something simple in Flash 8, and I stumbled across something weird I cannot explain: I have an object, and at some point of the program, I want it to be visible (it is invisible at first), so I write: _root.myObj._visible = true; _root.gameOver.swapDepths(_root.getNextHighestDepth()); //so it will be on the top and this works fine, the object becomes visible and etc. What I planned to happen next is that the user presses a button on that same object, and the object will go invisible: on(release) { trace(_root.myObj._visible); _root.myObj._visible = false; trace(_root.myObj._visible); _root.gotoAndPlay("three"); } The trace returns at first true and later on false, so the command works, but oddly the object stays visible, that's what I don't understand. Thanks everybody in advance.

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  • Can I push a modal view controller from within another modal view controller?

    - by Andy
    I've got a rootViewController that, at one point, displays a peoplePickerNavigationController. I'm trying to push a second view controller when my user selects a specific contact property, like so: -(BOOL)peoplePickerNavigationController:(ABPeoplePickerNavigationController *)picker shouldContinueAfterSelectingPerson:(ABPersonRef)person property:(ABPropertyID)property identifier:(ABMultiValueIdentifier)identifier { RuleBuilder *ruleBuilder = [[RuleBuilder alloc] initWithNibName:@"RuleBuilder" bundle:nil]; [self pushModalViewController:ruleBuilder animated:YES]; [ruleBuilder release]; return NO; } This compiles just fine, but when I run the code in the simulator and run through the peoplePicker, nothing happens when I select a contact property. On a whim, I added a [self dismissModalViewControllerAnimated:YES]; just before [ruleBuilder release]; and that dismisses the peoplePicker, but otherwise has no effect on my missing ruleBuilder. Any ideas?

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  • What parser generator do you recommend

    - by stefan.ciobaca
    I'm currently shopping for a FOSS parser generator for a project of mine. It has to support either C or C++. I've looked at bison/flex and at boost::spirit. I went from writing my own to spirit to bison to spirit to bison to spirit, each time hit by some feature I found unpleasant. The thing I hate most about bison/flex is that they actually generate C/C++ source for you. There are a number of disadvantages to this, e.g. debugging. I like spirit from this point of view, but I find it very very heavy on syntax. I am curious about what you are using, what you would recommend, and general thoughts about the state of the art in parser generators. I am also curious to hear about approaches being used in other languages for parsing problems.

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  • Any competitors to db4o on compact framework?

    - by MrJeepster
    We've been trying db4o for persisting objects on the compact framework. It works very well from our tests so far. However, it appears they are on the expensive side for small startups with minimal units needed. Does anyone know of any similar object databases for the compact framework? How about a open source one that is free for commercial use? :) Thank you. EDIT: We're really looking for an object database. We don't want to create our own persistence framework at this point and would prefer being able to just save/retrieve the actual object trees.

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  • TextView defined in main.xml - how to "name" it to be able to use - setText() method?

    - by Oliver Goossens
    Hi, I am exploring android and developement and I found one problem. My app UI is defined in main.xml I have 2 texts and 2 buttons defined - easy app. I read that I may be able to change TEXT in the ACTIVITY using the setText() method. And thats the problem - how do I POINT the setText() Method? How do I tell it to change a specified text? If I would declare the TextView inside the Activity with NEW TextView NAME Object, I would just need to use NAME.setText(STRING)... But I didnt so i dont have anything like NAME of the object? How can this be done? I read something about r.IDs but I truly dont have a idea how to use them, where to find them and how to implement it .... Please advise Thank you Oliver

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  • fast algorithm to sort very small set

    - by aaa
    hello. This is the problem I ran into long time ago. I thought I may ask your for your ideas. assume I have very small set of numbers (integers), 4 or 8 elements, that need to be sorted, fast. what would be the best approach/algorithm? my approach was to use the max/min functions only. At this point it becomes somewhat hardware dependent , so let us assume Intel 64-bit processor with SSE3 . Thanks

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  • Raphael js library: problems with animateAlong in IE7

    - by Andrei
    Hi there, I'm having trouble making a simple shape move along a path in IE7 (the only version of IE I tried, actually). The following code works fine in chrome and firefox, but not IE. I couldn't find an obvious reason, has anybody seen something similar? canvas.path(rPath.path).attr("stroke", "blue"); var circle = canvas.circle(rPath.startX, rPath.startY, 5); circle.animateAlong(rPath.path, 3000, true); My rPath variable has the path and the starting point coordinates. Microsoft script debugger points to this line as the one where the code breaks: os.left != (t = x - left + "px") && (os.left = t); (line 2131 inside the uncompressed raphael.js script file, inside Element[proto].setBox = function (params, cx, cy) {...}) Any ideas? Any experience (good or bad) with raphael's animateAlong in IE7? TIA, Andrei

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  • Ninject - initialise objects

    - by James Lin
    Hi guys, I am new to ninject, I am wondering how I can run custom initizlisation code when constructing the injected objects? ie. I have a Sword class which implements IWeapon, but I want to pass an hit point value to the Sword class constructor, how do I achieve that? Do I need to write my own provider? A minor question, IKernel kernel = new StandardKernel(new Module1(), new Module2(), ...); what is the actual use of having multiple modules in Kernel? I sorta understand it, but could someone give me a formal explaination and use case? Thanks a lot! James

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  • Multiple comosite applications on same WSDL endpoint with OPEN-ESB

    - by Simon Thompson
    Just learning how Open-ESB (GlassFishESB) works and evaluating it for a project. One point I do not understand is that if I have a Composite application bound to an incoming web service (hosted on the glassfish server) can I get muple composite applications to consume this message ? If so is it done by A) simply deploying the multiple composite applications each referencing the save URL and same WSDL B) include each JBI module in the CASA editor and deploy a single composite application with all parts included (will this reduce scaling?) C) create a new composite application which has a BPEL process to send the in message to new endpoints for each compisite applciation . My feeling is that option A should work?

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