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  • How much time roughly it takes to learn ASP.net programming

    - by Mirage
    I am a PHP MYSQL person but now i have got webiste to do it ASP.net. I kow nothing about ASP.NET. INitially i was thinking of ASP.NET as a programming language but now i now its not , i really don't know what it is. Someone told me that i have to do c sharp to build the website. I i have to display simple data from database how much different is c sharp from php. Does it has all function like php to echo stuff etc

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  • Leverage cloud and programming to share GB's of photos

    - by jcmoney
    My friends and I went on a trip and we have over 8 GB of photos we want to share. We live in different geographic locations and all of us (14 people) have a part of the 8 GB. I was wondering if there's a way to leverage my php skills to share all these photos. My current plan is to make a simple site that you can upload a bunch of files and also list those files for people to download (probably a compressed folder of a bunch of selected ones) but was wondering if there's a better way or if I'm grossly underestimating scalability issues. All of us have high speed internet (essentially T1) and I was planning on using Amazon EC2 since this is a heavy task but for a short time period. That's also the reason I can't use dropbox or similar services since they have a 2GB cap (and I don't want to have everyone sign up and install something). I also don't want to set up anything too tricky since not all of them are tech savvy.

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  • .Net programming on a Apple computer

    - by VoodooChild
    Hello, I really would like to write an app or apps for iPhone / iPad. I've never done this so far because most of my work has been in windows environment. I recently got an i7 with windows 7 and love it, and this is what I am using to do development on currently. I would love to try out writing a simple App on a mac for either an iPhone or iPad. The question I had was are there any developers using a macbook to do windows based programming as well as writing apps? And what is their setups like? (example: using bootcamp) Most importantly, is it recommended based on the experience they had doing so? any problems / performance issue? These are the concerns I have to address before justifying spending time and money on this. Thanks, Voodoo

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  • Does my TPL partitioner cause a deadlock?

    - by Scott Chamberlain
    I am starting to write my first parallel applications. This partitioner will enumerate over a IDataReader pulling chunkSize records at a time from the data-source. protected class DataSourcePartitioner<object[]> : System.Collections.Concurrent.Partitioner<object[]> { private readonly System.Data.IDataReader _Input; private readonly int _ChunkSize; public DataSourcePartitioner(System.Data.IDataReader input, int chunkSize = 10000) : base() { if (chunkSize < 1) throw new ArgumentOutOfRangeException("chunkSize"); _Input = input; _ChunkSize = chunkSize; } public override bool SupportsDynamicPartitions { get { return true; } } public override IList<IEnumerator<object[]>> GetPartitions(int partitionCount) { var dynamicPartitions = GetDynamicPartitions(); var partitions = new IEnumerator<object[]>[partitionCount]; for (int i = 0; i < partitionCount; i++) { partitions[i] = dynamicPartitions.GetEnumerator(); } return partitions; } public override IEnumerable<object[]> GetDynamicPartitions() { return new ListDynamicPartitions(_Input, _ChunkSize); } private class ListDynamicPartitions : IEnumerable<object[]> { private System.Data.IDataReader _Input; int _ChunkSize; private object _ChunkLock = new object(); public ListDynamicPartitions(System.Data.IDataReader input, int chunkSize) { _Input = input; _ChunkSize = chunkSize; } public IEnumerator<object[]> GetEnumerator() { while (true) { List<object[]> chunk = new List<object[]>(_ChunkSize); lock(_Input) { for (int i = 0; i < _ChunkSize; ++i) { if (!_Input.Read()) break; var values = new object[_Input.FieldCount]; _Input.GetValues(values); chunk.Add(values); } if (chunk.Count == 0) yield break; } var chunkEnumerator = chunk.GetEnumerator(); lock(_ChunkLock) //Will this cause a deadlock? { while (chunkEnumerator.MoveNext()) { yield return chunkEnumerator.Current; } } } } IEnumerator IEnumerable.GetEnumerator() { return ((IEnumerable<object[]>)this).GetEnumerator(); } } } I wanted IEnumerable object it passed back to be thread safe (the .Net example was so I am assuming PLINQ and TPL could need it) will the lock on _ChunkLock near the bottom help provide thread safety or will it cause a deadlock? From the documentation I could not tell if the lock would be released on the yeld return. Also if there is built in functionality to .net that will do what I am trying to do I would much rather use that. And if you find any other problems with the code I would appreciate it.

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  • Looking for good SIP Book

    - by Dave
    Hey guys I am looking for a SIP book similar to this one on XMPP - Professional XMPP Programming with Javascript and Jquery (http://www.amazon.com/Professional-Programming-JavaScript-jQuery-Programmer/dp/0470540710) I am new to the area and any resources would be appreciated, thanks

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  • Most frustrating programming style you've encountered

    - by JaredPar
    When it comes to coding style I'm a pretty relaxed programmer. I'm not firmly dug into a particular coding style. I'd prefer a consistent overall style in a large code base but I'm not going to sweat every little detail of how the code is formatted. Still there are some coding styles that drive me crazy. No matter what I can't look at examples of these styles without reaching for a VIM buffer to "fix" the "problem". I can't help it. It's not even wrong, I just can't look at it for some reason. For instance the following comment style almost completely prevents me from actually being able to read the code. if (someConditional) // Comment goes here { other code } What's the most frustrating style you've encountered?

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  • Book resources for x86/x64 assembly programming on Win platform

    - by Scott Davies
    Hello, I ran a search for assembly language resources on stackoverflow.com and found some interesting results, but they seemed to boil down to two groups: 1) Assembly references to old ia32 architecture, such as the 80386 to Pentium 2) Windows agnostic books. Most of the commenters make the point that assembler is CPU dependent and that the OS is irrelevant, but it seems pointless to me to pick a book that has assembly examples that refer to MS-DOS interrupts and memory layouts. Likewise, learning assembler on Linux would seem to produce Linux executables Are there any: 1) Modern 2) x86/x64 3) on Windows platform - book resources available ? The reason I am targeting the Win platform is I would like to do low-level, OS internals programming, to supplement my Win C/C++ work. Thanks

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  • Windows Shell Programming book suggestion

    - by Lijo
    Hi, I am a web developer using C#. I would like to experiment with Windows shell programming in C#. Many people suggests that using managed applications for shell program, is dangerous. (Creation of separate instances for each process versus in process shell. Also version dependency) Frankly speaking, I am totally new to shell. Is there a book available, that will treat these topics; both through managed code and unmanaged code (but mostly towards managed code)? It would be great if that book is concise , for beginner and giving theoretical background of the shell. Please suggest…. Thanks Lijo

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  • navigation between screens Iphone programming

    - by Sephy
    Hi, I don't know if my question will be clear or not, but i'm starting basic stuff with iphone programming, and i'm trying to understand how to go from a screen to another. lets say i have a screen with a "next page" button and another page with a "return" button. I have a general idea of how to do this, but I don't know how to put it together. I think I need an IBAction method for each button, and in each method a navigation controller with pushViewController. So far, i've tried the following code, but even if it compiles properly and runs when i push the button, there is no change of screen... -(IBAction) toNext(id)sender{ NSLog(@"before code"); NextViewController *nvc = [[NextViewController alloc] initWithNibName:@"NextView" bundle:nil]; [self.navigationController pushViewController:nvc animated:YES]; [nvc release]; NSLog(@"after code"); } If someone had a nice tuto for me, it could be of some help... thx

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  • iPad as programming platform--What future do touch screens have with programming?

    - by user94154
    I read this question a few weeks ago. I thought about it when I first saw the iPad. Do you think it would be possible to set up a development environment on the iPad? I think it would be awesome if there was an InstantRails App, a Django App, maybe even 280 North's Atlas could run on it :). Would you develop using an on-screen keyboard and a 10 inch screen? Steve Jobs seems to think touch-screens are the future of web browsing. What Future does touch have with programming?

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  • Reusability, testability, code complexity reduction and showing-off-ability programming importance

    - by Andrew Florko
    There are lots of programming and architecture patterns. Patterns allow to make code cleaner, reusable, more testable & at last (but not at least) to feel the follower a real cool developer. How do you rank these considerations for you? What does affect you most when you decide to apply pattern? I wonder how many times code reusability (especially for MVP, MVC patterns) was important? For example DAL library often shared between projects (it's reusable) but how often controllers/views (abstracted via interfaces) are reused?

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  • Teaching a kid to type in order to start programming

    - by at
    My 5 year old wants to start programming, but he doesn't yet know how to type without looking for each letter 1 at a time. I know it's going to frustrate him to go so slow because of his typing speed. And it's not going to be fun looking for all the letters constantly... So what's the best way to get him to type fast? Clearly he'll need to type a lot of punctuation like semicolons, colons and symbols. So his little hands will have to get used to spreading over the keyboard... I did some google searches and found some very poor looking apps that focused on the letters.

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  • C socket programming: recv / select not seeing sent messages

    - by Fantastic Fourier
    Hey guys, I had some questions, about socket programming for client-server using TCP/IP. I am using select() to recv(), which works fine when client send() messages to server, but not the other way around. The send() returns positive (and reasonable) numbers of bytes sent by server but I know that the nubmer of bytes "sent" really means "sent out of the socket", not "sent and was received by the client." The select() function seems to work fine. So given that, my guess is that it's the send() function that is giving me the problem. Probably the address of client in send() is not correct. But when I compared address.sin_addr.s_addrmember (it's an unsigned long int) of struct sockaddr_in from recv() and send() of server, they are identical. So I am kind of lost as to what could be wrong?

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  • Template meta-programming with member function pointers?

    - by wheaties
    Is it possible to use member function pointers with template meta-programming? Such as: class Connection{ public: string getName() const; string getAlias() const; //more stuff }; typedef string (Connection::*Con_Func)() const; template<Con_Func _Name> class Foo{ Connection m_Connect; public: void Foo(){ cout << m_Connect.(*_Name); } }; typedef Foo<&Connection::getName> NamedFoo; typedef Foo<&Connection::getAlias> AliasFoo; Granted, this is rather contrived but is it possible? (yes, there are probably much better ways but humor me.)

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  • Confusion in bind call in socket programming

    - by Tarun
    i was learning socket programming in unix using c/c++. I am confused with one function call bind(params..). Actually it takes the adreess structure "sockaddr_in" and we can create the structure in the following way sockaddr_in.*** = somthing.. sockaddr_in..s_addr htonl(INADDR_ANY) **Passing INADDR_ANY will alow to bind all local addresses** My question is , why do we need to use "INADDR_ANY" ? In my knowledge every machine can has only one unique IP Address. In this way there is only one address associated with the machien. Thye bind call should directly bind the socket to the single available address. Please explain what are the different scenarios and why is it so?

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  • High level programming logic, design, pattern

    - by Muhammad Shahzad
    I have been doing programming from last 7 years, getting better and better, but still i think that am lacking something. I have been doing work in JOOMLA, MAGENTO, WP, Custom PHP, Opencart, laravel, codeignitor. Sometimes i need to design logic for a huge database application, in the applications we need nesting loops and queries, although i follow OOPS standards, ORM etc, still i feel i need more robust coding designs. I need to know how can i improve these things, so that code remain neat, efficient and faster. Also how big webapps like facebook twitter tests there code speed? How high level programmers choose design patterns. If you can help me find something useful with examples?

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  • Object-oriented Programming - need your help

    - by wanderameise
    hey folks, I try to realize a little game project to dive deeper into OO programming (winforms c++/cli). I already started coding but now I´d like to make a re-design. For the beginning the game should consist of four parts like game-engine, user interface, highscore and playground. Heres a little (non-UML-conform) class diagramm to visualize my purposes http://i.imgur.com/lmpwj.png Would this be the right way? In my eyes the game engine is responsible to control the game sequences (state machine?) and exchanges information betweens all other classes. I appreciate any help!

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  • What color scheme do you use for programming?

    - by EndangeredMassa
    I get a lot of attention at work because I am the only one who bothered to change the default color settings in Visual Studio. I just modified them myself. I can provide the settings file if anyone cares to import it. Here's an example of how it looks. It reminds me of DOS/BASIC programming before I actually knew how to program. I also find it to be very readable. What color schemes do you use?! EDIT: To clarify, I only edited the text settings. The windows and panels of VS2005 are still the windows default.

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  • NullReferenceException at Microsoft.Silverlight.Build.Tasks.CompileXaml.LoadAssemblies(ITaskItem[] R

    - by Eugene Larchick
    Hi, I updated my Visual Studio 2010 to the version 10.0.30319.1 RTM Rel and start getting the following exception during the build: System.NullReferenceException: Object reference not set to an instance of an object. at Microsoft.Silverlight.Build.Tasks.CompileXaml.LoadAssemblies(ITaskItem[] ReferenceAssemblies) at Microsoft.Silverlight.Build.Tasks.CompileXaml.get_GetXamlSchemaContext() at Microsoft.Silverlight.Build.Tasks.CompileXaml.GenerateCode(ITaskItem item, Boolean isApplication) at Microsoft.Silverlight.Build.Tasks.CompileXaml.Execute() at Bohr.Silverlight.BuildTasks.BohrCompileXaml.Execute() The code of BohrCompileXaml.Execute is the following: public override bool Execute() { List<TaskItem> pages = new List<TaskItem>(); foreach (ITaskItem item in SilverlightPages) { string newFileName = getGeneratedName(item.ItemSpec); String content = File.ReadAllText(item.ItemSpec); String parentClassName = getParentClassName(content); if (null != parentClassName) { content = content.Replace("<UserControl", "<" + parentClassName); content = content.Replace("</UserControl>", "</" + parentClassName + ">"); content = content.Replace("bohr:ParentClass=\"" + parentClassName + "\"", ""); } File.WriteAllText(newFileName, content); pages.Add(new TaskItem(newFileName)); } if (null != SilverlightApplications) { foreach (ITaskItem item in SilverlightApplications) { Log.LogMessage(MessageImportance.High, "Application: " + item.ToString()); } } foreach (ITaskItem item in pages) { Log.LogMessage(MessageImportance.High, "newPage: " + item.ToString()); } CompileXaml xamlCompiler = new CompileXaml(); xamlCompiler.AssemblyName = AssemblyName; xamlCompiler.Language = Language; xamlCompiler.LanguageSourceExtension = LanguageSourceExtension; xamlCompiler.OutputPath = OutputPath; xamlCompiler.ProjectPath = ProjectPath; xamlCompiler.RootNamespace = RootNamespace; xamlCompiler.SilverlightApplications = SilverlightApplications; xamlCompiler.SilverlightPages = pages.ToArray(); xamlCompiler.TargetFrameworkDirectory = TargetFrameworkDirectory; xamlCompiler.TargetFrameworkSDKDirectory = TargetFrameworkSDKDirectory; xamlCompiler.BuildEngine = BuildEngine; bool result = xamlCompiler.Execute(); // HERE we got the error! And the definition of the task: <BohrCompileXaml LanguageSourceExtension="$(DefaultLanguageSourceExtension)" Language="$(Language)" SilverlightPages="@(Page)" SilverlightApplications="@(ApplicationDefinition)" ProjectPath="$(MSBuildProjectFullPath)" RootNamespace="$(RootNamespace)" AssemblyName="$(AssemblyName)" OutputPath="$(IntermediateOutputPath)" TargetFrameworkDirectory="$(TargetFrameworkDirectory)" TargetFrameworkSDKDirectory="$(TargetFrameworkSDKDirectory)" > <Output ItemName="Compile" TaskParameter="GeneratedCodeFiles" /> <!-- Add to the list list of files written. It is used in Microsoft.Common.Targets to clean up for a next clean build --> <Output ItemName="FileWrites" TaskParameter="WrittenFiles" /> <Output ItemName="_GeneratedCodeFiles" TaskParameter="GeneratedCodeFiles" /> </BohrCompileXaml> What can be the reason? And how can I get more info what's happening inside CompileXaml class?

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  • Online Game programming in Google App Engine: AI

    - by Hortinstein
    I am currently in the planning stages of a game for google app engine, but cannot wrap my head around how I am going to handle AI. I intend to have persistant NPCs that will move about the map, but short of writing a program that generates the same XML requests I use to control player actions, than run it on another server I am stuck on how to do it. I have looked at the Task Queue feature, but due to long running processes not being an option on the App engine, I am a little stuck. I intend to run multiple server instances with 200+ persistant NPC entities that I will need to update. Most action is slowly roaming around based on player movements/concentrations, and attacking close range players(you can probably guess the type of game im developing)

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  • event vs thread programming on server side.

    - by AlxPeter
    We are planning to start a fairly complex web-portal which is expected to attract good local traffic and I've been told by my boss to consider/analyse node.js for the serve side. I think scalability and multi-core support can be handled with an Nginx or Cherokee up in the front. 1) Is this node.js ready for some serious/big business? 2) Does this 'event/asynchronous' paradigm on server side has the potential to support the heavy traffic and data operation ? considering the fact that 'everything' is being processed in a single thread and all the live connections would be lost if it got crashed (though its easy to restart). 3) What are the advantages of event based programming compared to thread based style ? or vice-versa. (I know of higher cost associated with thread switching but hardware can be squeezed with event model.) Following are interesting but contradicting (to some extent) papers:- 1) http://www.usenix.org/events/hotos03/tech/full_papers/vonbehren/vonbehren_html 2) http://pdos.csail.mit.edu/~rtm/papers/dabek:event.pdf

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  • c++ programming for clusters and HPC

    - by Abruzzo Forte e Gentile
    HI All I need to write a scientific application in C++ doing a lot of computations and using a lot of memory. I have part of the job but due to high requirements in terms of resources I was thinking to start moving to OpenMPI. Before doing that I have a simple curiosity: If I understood the principle of OpenMPI is the developer that has the task of splitting the jobs over different nodes calling SEND and RECEIVE based on node available at that time. Do you know if it does exist some library or OS or whatever that has this capability letting my code reamain as it is now? Basically something that connects all computers and let share as one their memory and CPU? I am a bit confused because of the high material available on the topic. Should I look at cloud computing? or Distributed Shared Memory? Can you help me or address me a bit? Thanks

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