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  • Using json as database with EF, how can I link EF and the json file during DbContext initialization?

    - by blacai
    For a personal testing-project I am considering to create a SPA with the following technologies: ASP.NET MVC + EF + WebAPI + AngularJS. The project will make use of small amount of data, so I was thinking I could use just a .json file as storage. But I am not sure about how to proceed with the link between EF and the json file in the initialization of the DbContext. I found a stackoverflow related question: http://stackoverflow.com/questions/13899342/can-we-use-json-as-a-database I know the basics of edit files and store data inside. What I tried is to get the data from the json file in the initilizer method and create the objects one by one. This is more a doubt about how this works if I save/update an object in the dbcontext, do I need to go through all the elements and add/update it manually? Is it better to rewrite the complete file? According to this http://stackoverflow.com/questions/7895335/append-data-to-a-json-file-with-php it is not a good practice to use json/XML for data wich will be manipulated. Anyone has experience with anything similar? Is this a really bad idea and I should use another kind of data-storage?

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  • Implementing a multilanguage AI contest platform

    - by Alejandro Piad
    This is a followup to this question. To sum: I'm implementing an AI contest site, where each user may submit several AI implementations for different games. Think about Google AI Challenge but instead of just having a big event once a year, I would like it more on a league fashion, with all virtual players playing with each other every some close period of time. I want to support as many programming languages as possible. I've seen that contest sites (like codeforces) ask you to submit a source code and interact through stdin and stdout. The first question is: what is the best way of supporting multiple languages? As I see it, I can either ask people to upload some binary/script, and interact either through stdin/*stdout*, or sockets, or the file system; or ask people to submit source code, and wrap it with whatever is necessary for the interaction. I would like to skip the need to compile the code by myself (in the server, I mean), but I am willing to do it if its the "best" choice. I need to comunicate virtual players with each other, or even better, with some intermediary arbiter. The second question is regarding security. If I'm going to be running user code in my server, I want to ensure strict security conditions, like no file system access, no networking, etc. Otherwise it would be a safe heaven for hackers. I will be implementing the engine/arbiter in .NET. I would like to support at least C#, C++, Java and Python for the user's implementations. I'm willing to write interfaces for each of these languages to simplify the user interaction with the system. Thanks in advance.

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  • OOP concept: is it possible to update the class of an instantiated object?

    - by Federico
    I am trying to write a simple program that should allow a user to save and display sets of heterogeneous, but somehow related data. For clarity sake, I will use a representative example of vehicles. The program flow is like this: The program creates a Garage object, which is basically a class that can contain a list of vehicles objects Then the users creates Vehicles objects, these Vehicles each have a property, lets say License Plate Nr. Once created, the Vehicle object get added to a list within the Garage object --Later on--, the user can specify that a given Vehicle object is in fact a Car object or a Truck object (thus giving access to some specific attributes such as Number of seats for the Car, or Cargo weight for the truck) At first sight, this might look like an OOP textbook question involving a base class and inheritance, but the problem is more subtle because at the object creation time (and until the user decides to give more info), the computer doesn't know the exact Vehicle type. Hence my question: how would you proceed to implement this program flow? Is OOP the way to go? Just to give an initial answer, here is what I've came up until now. There is only one Vehicle class and the various properties/values are handled by the main program (not the class) through a dictionary. However, I'm pretty sure that there must be a more elegant solution (I'm developing using VB.net): Public Class Garage Public GarageAdress As String Private _ListGarageVehicles As New List(Of Vehicles) Public Sub AddVehicle(Vehicle As Vehicles) _ListGarageVehicles.Add(Vehicle) End Sub End Class Public Class Vehicles Public LicensePlateNumber As String Public Enum VehicleTypes Generic = 0 Car = 1 Truck = 2 End Enum Public VehicleType As VehicleTypes Public DictVehicleProperties As New Dictionary(Of String, String) End Class NOTE that in the example above the public/private modifiers do not necessarily reflect the original code

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  • Why is testing MVC Views frowned upon?

    - by Peter Bernier
    I'm currently setting the groundwork for an ASP.Net MVC application and I'm looking into what sort of unit-tests I should be prepared to write. I've seen in multiple places people essentially saying 'don't bother testing your views, there's no logic and it's trivial and will be covered by an integration test'. I don't understand how this has become the accepted wisdom. Integration tests serve an entirely different purpose than unit tests. If I break something, I don't want to know a half-hour later when my integration tests break, I want to know immediately. Sample Scenario : Lets say we're dealing with a standard CRUD app with a Customer entity. The customer has a name and an address. At each level of testing, I want to verify that the Customer retrieval logic gets both the name and the address properly. To unit-test the repository, I write an integration test to hit the database. To unit-test the business rules, I mock out the repository, feed the business rules appropriate data, and verify my expected results are returned. What I'd like to do : To unit-test the UI, I mock out the business rules, setup my expected customer instance, render the view, and verify that the view contains the appropriate values for the instance I specified. What I'm stuck doing : To unit-test the repository, I write an integration test, setup an appropriate login, create the required data in the database, open a browser, navigate to the customer, and verify the resulting page contains the appropriate values for the instance I specified. I realize that there is overlap between the two scenarios discussed above, but the key difference it time and effort required to setup and execute the tests. If I (or another dev) removes the address field from the view, I don't want to wait for the integration test to discover this. I want is discovered and flagged in a unit-test that gets multiple times daily. I get the feeling that I'm just not grasping some key concept. Can someone explain why wanting immediate test feedback on the validity of an MVC view is a bad thing? (or if not bad, then not the expected way to get said feedback)

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  • Data transfer between "main" site and secured virtual subsite

    - by Emma Burrows
    I am currently working on a C# ASP.Net 3.5 website I wrote some years ago which consists of a "main" public site, and a sub-site which is our customer management application, using forms-based authentication. The sub-site is set up as a virtual folder in IIS and though it's a subfolder of "main", it functions as a separate web app which handles CRUD access to our customer database and is only accessible by our staff. The main site currently includes a form for new leads to fill in, which generates an email to our sales staff so they can contact them and convince them to become customers. If that process is successful, the staff manually enter the information from the email into the database. Not surprisingly, I now have a new requirement to feed the data from the new lead form directly into the database so staff can just check a box for instance to turn the lead into a customer. My question therefore is how to go about doing this? Possible options I've thought of: Move the new lead form into the customer database subsite (with authentication turned off). Add database handling code to the main site. (No, not seriously considering this duplication of effort! :) Design some mechanism (via REST?) so a webpage outside the customer database subsite can feed data into the customer database How to organise the code for this situation, preferably with extensibility in mind, and particularly are there any options I haven't thought of?

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  • Graduated transition from Green - Yellow - Red

    - by GoldBishop
    I have am having algorithm mental block in designing a way to transition from Green to Red, as smoothly as possible with a, potentially, unknown length of time to transition. For testing purposes, i will be using 300 as my model timespan but the methodology algorithm design needs to be flexible enough to account for larger or even smaller timespans. Figured using RGB would probably be the best to transition with, but open to other color creation types, assuming its native to .Net (VB/C#). Currently i have: t = 300 x = t/2 z = 0 low = Green (0, 255, 0) mid = Yellow (255, 255, 0) high = Red (255, 0, 0) Lastly, sort of an optional piece, is to account for the possibility of the low, mid, and high color's to be flexible as well. I assume that there would need to be a check to make sure that someone isnt putting in low = (255,0,0), mid=(254,0,0), and high=(253,0,0). Outside of this anomaly, which i will handle myself based on the best approach to evaluate a color. Question: What would be the best approach to do the transition from low to mid and then from mid to high? What would be some potential pitfalls of implementing this type of design, if any?

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  • CodePlex Daily Summary for Saturday, July 07, 2012

    CodePlex Daily Summary for Saturday, July 07, 2012Popular ReleasesHigLabo: HigLabo_20120706: Breaking change Now HigLabo.Mail require reference to HigLabo.Net. ProtocolType change name to HttpProtocolType in HigLabo.Net project. AsyncCallErrorEventArgs change name to AsyncHttpCallErrorEventArgs. Delete command class in Pop3,Smtp that may not used. Other change Add HigLabo.Net.Ftp project.(Not complete) Create SocketClient that can easily communicate to server by Socket object.ecBlog: ecBlog 0.2: ecBlog alpha realaseTaskScheduler ASP.NET: Release 3 - 1.2.0.0: Release 3 - Version 1.2.0.0 That version was altered only the library: In TaskScheduler was added new properties: UseBackgroundThreads Enables the use of separate threads for each task. StoreThreadsInPool Manager enables to store in the Pool threads that are performing the tasks. OnStopSchedulerAutoCancelThreads Scheduler allows aborting threads when it is stopped. false if the scheduler is not aborted the threads that are running. AutoDeletedExecutedTasks Allows Manager Delete Task afte...DotNetNuke Persian Packages: ??? ?? ???? ????? ???? 6.2.0: *????? ???? ??? ?? ???? 6.2.0 ? ??????? ???? ????? ???? ??? ????? *????? ????? ????? ??? ??? ???? ??? ??????? ??????? - ???? *?????? ???? ??? ?????? ?? ???? ???? ????? ? ?? ??? ?? ???? ???? ?? *????? ????? ????? ????? ????? / ??????? ???? ?? ???? ??? ??? - ???? *???? ???? ???? ????? ? ??????? ??? ??? ??? ?? ???? *????? ????? ???????? ??? ? ??????? ?? ?? ?????? ????? ????????? ????? ?????? - ???? *????? ????? ?????? ????? ?? ???? ?? ?? ?? ???????? ????? ????? ????????? ????? ?????? *???? ?...xUnit.net Contrib: xunitcontrib-resharper 0.6 (RS 7.0, 6.1.1): xunitcontrib release 0.6 (ReSharper runner) This release provides a test runner plugin for Resharper 7.0 (EAP build 82) and 6.1, targetting all versions of xUnit.net. (See the xUnit.net project to download xUnit.net itself.) Copies of the plugin that support previous verions of ReSharper can be downloaded from this release. The plan is to support the latest revisions of the last two paid-for major versions of ReSharper (namely 7.0 and 6.1) Also note that all builds work against ALL VERSIONS...Umbraco CMS: Umbraco 4.8.0 Beta: Whats newuComponents in the core Multi-Node Tree Picker, Multiple Textstring, Slider and XPath Lists Easier Lucene searching built in IFile providers for easier file handling Updated 3rd party libraries Applications / Trees moved out of the database SQL Azure support added Various bug fixes Getting Started A great place to start is with our Getting Started Guide: Getting Started Guide: http://umbraco.codeplex.com/Project/Download/FileDownload.aspx?DownloadId=197051 Make sure to...CODE Framework: 4.0.20704.0: See CODE Framework (.NET) Change Log for changes in this version.?????????? - ????????: All-In-One Code Framework ??? 2012-07-04: http://download.codeplex.com/Project/Download/FileDownload.aspx?ProjectName=1codechs&DownloadId=216140 ???OneCode??????,??????????10????Microsoft OneCode Sample,????4?Windows Base Sample,2?XML Sample?4?ASP.NET Sample。???????????。 ????,?????。http://i3.codeplex.com/Project/Download/FileDownload.aspx?ProjectName=1code&DownloadId=128165 Windows Base Sample CSCheckOSBitness VBCheckOSBitness CSCheckOSVersion VBCheckOSVersion XML Sample CSXPath VBXPath ASP.NET Sample CSASPNETDataPager VBASPNET...xUnit.net - Unit testing framework for C# and .NET (a successor to NUnit): xUnit.net 1.9.1: xUnit.net release 1.9.1Build #1600 Important note for Resharper users: Resharper support has been moved to the xUnit.net Contrib project. Important note for TestDriven.net users: If you are having issues running xUnit.net tests in TestDriven.net, especially on 64-bit Windows, we strongly recommend you upgrade to TD.NET version 3.0 or later. Important note for VS2012 users: The VS2012 runner is in the Visual Studio Gallery now, and should be installed via Tools | Extension Manager from insi...MVC Controls Toolkit: Mvc Controls Toolkit 2.2.0: Added Modified all Mv4 related features to conform with the Mvc4 RC Now all items controls accept any IEnumerable<T>(before just List<T> were accepted by most of controls) retrievalManager class that retrieves automatically data from a data source whenever it catchs events triggered by filtering, sorting, and paging controls move method to the updatesManager to move one child objects from a father to another. The move operation can be undone like the insert, update and delete operatio...IronPython: 2.7.3: On behalf of the IronPython team, I'm happy to announce the final release of IronPython 2.7.3. This release includes everything from IronPython 54498, 62475, and 74478 as well. Like all IronPython 2.7-series releases, .NET 4 is required to install it. Installing this release will replace any existing IronPython 2.7-series installation. The incompatibility with IronRuby has been resolved, and they can once again be installed side-by-side. The biggest improvements in IronPython 2.7.3 are: the...BlackJumboDog: Ver5.6.6: 2012.07.03 Ver5.6.6 (1) ???????????ftp://?????????、????LIST?????Mini SQL Query: Mini SQL Query (v1.0.68.441): Just a bug fix release for when the connections try to refresh after an edit. Make sure you read the Quickstart for an introduction.Microsoft Ajax Minifier: Microsoft Ajax Minifier 4.58: Fix for Issue #18296: provide "ALL" value to the -ignore switch to ignore all error and warning messages. Fix for issue #18293: if encountering EOF before a function declaration or expression is properly closed, throw an appropriate error and don't crash. Adjust the variable-renaming algorithm so it's very specific when renaming variables with the same number of references so a single source file ends up with the same minified names on different platforms. add the ability to specify kno...LogExpert: 1.4 build 4566: This release for the 1.4 version line contains various fixes which have been made some times ago. Until now these fixes were only available in the 1.5 alpha versions. It also contains a fix for: 710. Column finder (press F8 to show) Terminal server issues: Multiple sessions with same user should work now Settings Export/Import available via Settings Dialog still incomple (e.g. tab colors are not saved) maybe I change the file format one day no command line support yet (for importin...CommonLibrary.NET: CommonLibrary.NET 0.9.8.5 - Final Release: A collection of very reusable code and components in C# 4.0 ranging from ActiveRecord, Csv, Command Line Parsing, Configuration, Holiday Calendars, Logging, Authentication, and much more. FluentscriptCommonLibrary.NET 0.9.8 contains a scripting language called FluentScript. Releases notes for FluentScript located at http://fluentscript.codeplex.com/wikipage?action=Edit&title=Release%20Notes&referringTitle=Documentation Fluentscript - 0.9.8.5 - Final ReleaseApplication: FluentScript Versio...SharePoint 2010 Metro UI: SharePoint 2010 Metro UI8: Please review the documentation link for how to install. Installation takes some basic knowledge of how to upload and edit SharePoint Artifact files. Please view the discussions tab for ongoing FAQsnopCommerce. Open source shopping cart (ASP.NET MVC): nopcommerce 2.60: Highlight features & improvements: • Significant performance optimization. • Use AJAX for adding products to the cart. • New flyout mini-shopping cart. • Auto complete suggestions for product searching. • Full-Text support. • EU cookie law support. To see the full list of fixes and changes please visit the release notes page (http://www.nopCommerce.com/releasenotes.aspx).THE NVL Maker: The NVL Maker Ver 3.51: http://download.codeplex.com/Download?ProjectName=nvlmaker&DownloadId=371510 ????:http://115.com/file/beoef05k#THE-NVL-Maker-ver3.51-sim.7z ????:http://www.mediafire.com/file/6tqdwj9jr6eb9qj/THENVLMakerver3.51tra.7z ======================================== ???? ======================================== 3.51 beta ???: ·?????????????????????? ·?????????,?????????0,?????????????????????? ·??????????????????????????? ·?????????????TJS????(EXP??) ·??4:3???,???????????????,??????????? ·?????????...????: ????2.0.3: 1、???????????。 2、????????。 3、????????????。 4、bug??,????。New ProjectsCode Bits: Set of useful code blocks that can be included in your code. Includes NuGet support.Critr: A personal project that takes formatted Excel show logs, parses them and uploads them to small local database for analytics.kb.net: An Open Source Knowledge Base based on SQL Server Express 2012 and .Net 4.0LyncServerExtension: L’objectif de ce projet est l’ajout de la fonctionnalité de délégation patron/secrétaire à Microsoft Lync Server 2010. MVC Web Api 4 Flot: MVC4 Web Api Service Layers for the Flot project on http://code.google.com/p/flot. Until now implemented only the GET method.ostests: testif is web and mobile assessment software. Create interactive tests easily and share them with your colleagues, employees and friends.Pegasus Attack: Pegasus Attack will be a simple shmup style game in the style of Truxton Basic features Multiple levels (text document written, just stores location of enemies) Basic enemies with basic AI (hard-coded, or from a text document) Various bullet types Title screen / Help screen / Control window / In-game game-states / two playable Characters Rainbow Dash and Fluttershy Basic effects (explosion animation) Items (powerups, guns, ...)proLearningEnglish: Apps RDF to build a software for learning English. Users are teachers and pupils in grades 6.Pusher .Net Client: This is a .Net client for Pusher (http://www.pusher.com) allowing .Net clients such as WinForms and Console applications to receive websocket messages.RadEditor Lite for AJAX: RadEditor Lite for AJAX modified from the open source Telerik Free Tool: RadEditor Lite for MOSS 2010. RconLibrary: Battlefield 3 RCON communication library.SharePoint Notes: Simple visual webpart to show list items as notes. Easy to modify, and not really complex.Software Manager: Software Manager is a software package that will help with distribution and licensing of programs that are developed with VB.NET or C#.StoreFramework: this project is a test framework about the codefirst and pocoTwitterRt - Tweet from Windows Metro Apps: Add the ability to tweet from your Metro style (WinRT) application. Binaries at nuget.org/packages/TwitterRt. Discussion at w8isms.blogspot.com.YucadagBlog: e

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  • how to troubleshoot sql server issues

    - by joe
    i have an ASP .net application with sql server database, and i am wondering if you can give your ideas on how to troubleshoot the following issue: i can insert / update / delete from any table, but i have one page that uses transactions to insert into different tables. the c# code is correct and very simple, but it fails. i used the sql profiler to see how my app interacts with the DB, especially that the app is using stored procedures, i can catch the exec procedure statement and run it manually from SSMS and it works fine, but the same stored procedure fails from the application!!! which lead me to think that issue is coming from the user account and settings, i am no expert in sql server and wondering if anyone can explain how to verify the required settings for user account. thanks EDIT: in web.config here is how i reference my connection <connectionStrings> <add name="Conn" connectionString="Data Source=localhost;Initial Catalog=myDB;Persist Security Info=True;User ID=DbUser;Password=password1254_3" providerName="System.Data.SqlClient"> </connectionstring> EDIT: i will try to describe the process here: 1- i begin a transaction 2- i call a stored proc to insert (which succeeds) and return the scope identity ( that will be used in the next step) 3- i call another stored procedure to insert some more info + scope identity from step 2, which is a foreign key here 4- i get error, foreign key violation 5- transaction rolled back, now tables empty again... thanks

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  • What can I do about Hack Attempts

    - by Matt
    I have an ASP.net website hosted using the Ultidev Web Server Pro. Every day I get a steady stream of errors generated by my application where page requests were requested and denied. This is obviously someone/something trying to find any exploits on my website. Here is an example log: 28/08/2012 11:37:11 - File not Found:http://MyWebServer/phpmyadmin/index.php 28/08/2012 11:37:11 - File not Found:http://MyWebServer/phpMyAdmin/index.php 28/08/2012 11:37:12 - File not Found:http://MyWebServer/phpMyAdmin-2/index.php 28/08/2012 11:37:12 - File not Found:http://MyWebServer/php-my-admin/index.php 28/08/2012 11:37:13 - File not Found:http://MyWebServer/phpMyAdmin-2.2.3/index.php 28/08/2012 11:37:13 - File not Found:http://MyWebServer/phpMyAdmin-2.2.6/index.php 28/08/2012 11:37:14 - File not Found:http://MyWebServer/phpMyAdmin-2.5.1/index.php 28/08/2012 11:37:14 - File not Found:http://MyWebServer/phpMyAdmin-2.5.4/index.php 28/08/2012 11:37:15 - File not Found:http://MyWebServer/phpMyAdmin-2.5.5-rc1/index.php 28/08/2012 11:37:15 - File not Found:http://MyWebServer/phpMyAdmin-2.5.5-rc2/index.php 28/08/2012 11:37:15 - File not Found:http://MyWebServer/phpMyAdmin-2.5.5/index.php 28/08/2012 11:37:16 - File not Found:http://MyWebServer/phpMyAdmin-2.5.5-pl1/index.php 28/08/2012 11:37:16 - File not Found:http://MyWebServer/phpMyAdmin-2.5.6-rc1/index.php 28/08/2012 11:37:17 - File not Found:http://MyWebServer/phpMyAdmin-2.5.6-rc2/index.php 28/08/2012 11:37:18 - File not Found:http://MyWebServer/phpMyAdmin-2.5.6/index.php 28/08/2012 11:37:18 - File not Found:http://MyWebServer/phpMyAdmin-2.5.7/index.php 28/08/2012 11:37:19 - File not Found:http://MyWebServer/phpMyAdmin-2.5.7-pl1/index.php 28/08/2012 13:52:07 - File not Found:http://MyWebServer/admin/pma/translators.html Is this normal? Is there anything I can do to protect myself against this?

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  • Sending an email with attachment from server side

    - by SaravananArumugam
    I have to create a word document in a specific format and send it as attachment to some email addresses. I have a preview screen for the report which on approval has to be send in email. This is an ASP.NET MVC 3 application. I am left with a few options here. I am creating the preview using html. I can convert this html into doc and send it, which would be a straight solution. But capturing the Response object's output is being a tough job. I thought of using Mail merge functionality of MS word, where I'll be filling the placeholders of the doc template. But the problem is conceptually, it doesn't appear to be mail merge. I have found someone suggesting to use RTF format and replace the placeholders with database values. Which is the right thing to do? What's the best solution here? Is there any other option than the three listed above?

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  • Windows 7+ desktop apps - what's the best UI toolkit for a new project?

    - by Chris Adams
    I'm trying to make a decision for a new Windows desktop app: what to use for the UI. (This is a desktop app that needs to have compatibility with Windows 7. It won't be distributed on the Windows Store.) This application is going to be cross-platform. I intend on writing the core in C++, and using each platform's native UI toolkit. I feel this is preferable to using a cross-platform toolkit like Qt, as it allows me to keep the native look and feel of each platform. On the Windows side, the UI situation isn't exactly clear. I'm getting the feeling that Microsoft is slowly abandoning .NET, particularly as their preferred toolkit for desktop apps. Indeed, the Getting Started chapter for Windows 7, as well as the rest of Microsoft's documentation, seems to be more suited for C++. I have a few options here: C# with WPF - This sesms like this might be the best Microsoft has to offer for Windows 7 desktop apps, even if it isn't their "preferred" toolkit. I'd need to use P/Invoke to call my C++ code. C++ with Direct2D - This is what Microsoft used in one of their examples. This feels like it's too low-level. Part of the appeal of a higher-level UI toolkit is the consistency with the native look and feel of the platform, so doing this would just feel strange. C++ with a third-party UI toolkit, like Qt There might be some other options I'm missing, which I'd love to hear about. So, if you were starting a new Windows 7+ desktop app today, what would you use?

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  • Minimizing data sent over a webservice call on expensive connection

    - by aceinthehole
    I am working on a system that has many remote laptops all connected to the internet through cellular data connections. The application will synchronize periodically to a central database. The problem is, due to factors outside our control, the cost to move data across the cellular networks are spectacularly expensive. Currently the we are sending a compressed XML file across the wire where it is being processed and various things are done with (mainly stuffing it into a database). My first couple of thoughts were to convert that XML doc to json, just prior to transmission and convert back to XML just after receipt on the other end, and get some extra compression for free without changing much. Another thought was to test various other compression algorithms to determine the smallest one possible. Although, I am not entirely sure how much difference json vs xml would make once it is compressed. I thought that their must be resources available that address this problem from an information theory perspective. Does anyone know of any such resources or suggestions on what direction to go in. This developed on the MS .net stack on windows for reference.

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  • How do I mashup Google Maps with geolocated photos from one or more social networks?

    - by PureCognition
    I'm working on a proof of concept for a project, and I need to pin random photos to a Google Map. These photos can come from another social network, but need to be non-porn. I've done some research so far, Google's Image Search API is deprecated. So, one has to use the Custom Search API. A lot of the images aren't photos, and I'm not sure how well it handles geolocation yet. Twitter seems a little more well suited, except for the fact that people can post pictures of pretty much anything. I was also going to look into the API's for other networks such as Flickr, Picasa, Pinterest and Instagram. I know there are some aggregate services out there that might have done some of this mash-up work for me as well. If there is anyone out there that has a handle on social APIs and where I should look for this type of solution, I would really appreciate the help. Also, in cases where server-side implementation matters, I'm a .NET developer by experience.

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  • If I implement a web-service, how do I respond to POST requests with JSON?

    - by Vova Stajilov
    I have to make a rather complex system for my diploma work. Logically it will consist of the following components: Database Web-service Management with web interface Client iOS application that will consume web-service I decided to implement all the first three components under .NET. Firstly I will create a database depending on the information load - this is clear. But then I need a web-service that will return data in JSON format for iOS clients to consume - that's obvious and not that hard to implement. For this I will use WCF technology. Now I have a question, if I implement the web-service, how will I be able to respond to POST requests with JSON? It probably involves WCF JSON or something related? But I also need some web pages as admin part, so will this web-application be able to consume my centralized web-services as well or I should develop it separately? I just want my web service to act like a set of controllers. There is a related question here but this doesn't quite reflect my question.

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  • What exactly do I have to pay attention for when choosing Windows Hosting Provider?

    - by user850010
    This is my first time choosing a hosting company. It is for a web site made in asp.net mvc3. So I was thinking choosing a provider would be easy since I found this page http://www.microsoft.com/web/Hosting/Home which contains hosting offers. Now hours later, I am still searching. The reason is that as soon as I start investigating about particular company, something stands out that I do not like. Here are some examples what I noticed when checking various companies in more detail: Company "about us" page is lacking in information about their company. Few of them had just general description what they do and nothing else, while some others had information like company name but had no address. Checking company name in Business Registry Searches gave no results. Two of the companies I checked had both company name and address but I was unable to find them in the registry. Putting company domain into Google gave mostly results from that domain or web hosting review sites but not much else. I am assuming that good companies should have search results from other sites too. Low Alexa Traffic Rank. There was one company which had a site that looked very professional but their alexa traffic ranking was like 2 million. Are there any other factors I should pay attention to when choosing a hosting company? Do I have legitimate concerns or am I just too paranoid?

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  • REST Service and CQRS

    - by Paul Wade
    I am struggling with architecture on a new project. I am using the following patterns/technology. CQRS - anything going in goes through a command REST - using WebAPI MVC - asp.net mvc Angular - building a spa nhibernate I belive this provides some great separation and should help keep a very complex domain from growing into a giant set of services that mix queries with other business logic. The REST services have become non restful. They are putting methods in rest that are "SearchByDate", "SearchByItem" etc. Service Methods that execute commands are called with a "web" model class, a new command is built in the service and executed, I feel like there is a lot of extra code. I expected this to be much different but I wasn't around to keep things on track. Finally my questions are this... I would have liked to see PUT Person (CreatePersonCommand) but then I realized that isn't restful either is it? the put should be a person entity not a command. Can I make CQRS and REST service work together or am I going about this all wrong? How do I handle service methods that don't fit into a REST model. I am not performing CRUD on the object but rather executing some business logic. I.E. I don't want the UI to be responsible for how a shipment is "unshipped" I want the service layer to worry about that.

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  • How do I trust an off site application

    - by Pieter
    I need to implement something similar to a license server. This will have to be installed off site at the customers' location and needs to communicate with other applications at the customers' site (the applications that use the licenses) and an application running in our hosting center (for reporting and getting license information). My question is how to set this up in a way I can trust that: The license server is really our application and not something that just simulates it; and There is no "man in the middle" (i.e. a proxy or something that alters the traffic). The first thing I thought of was to use with client certificates and that would solve at least 2. However, what I'm worried about is that someone just decompiles (this is build in .NET) the license server, alters some logic and recompiles it. This would be hard to detect from both connecting applications. This doesn't have to be absolutely secure since we have a limited number of customers whom we have a trust relationship with. However, I do want to make it more difficult than a simple decompile/recompile of the license server. I primarily want to protect against an employee or nephew of the boss trying to be smart.

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  • Generic Repositories with DI & Data Intensive Controllers

    - by James
    Usually, I consider a large number of parameters as an alarm bell that there may be a design problem somewhere. I am using a Generic Repository for an ASP.NET application and have a Controller with a growing number of parameters. public class GenericRepository<T> : IRepository<T> where T : class { protected DbContext Context { get; set; } protected DbSet<T> DbSet { get; set; } public GenericRepository(DbContext context) { Context = context; DbSet = context.Set<T>(); } ...//methods excluded to keep the question readable } I am using a DI container to pass in the DbContext to the generic repository. So far, this has met my needs and there are no other concrete implmentations of IRepository<T>. However, I had to create a dashboard which uses data from many Entities. There was also a form containing a couple of dropdown lists. Now using the generic repository this makes the parameter requirments grow quickly. The Controller will end up being something like public HomeController(IRepository<EntityOne> entityOneRepository, IRepository<EntityTwo> entityTwoRepository, IRepository<EntityThree> entityThreeRepository, IRepository<EntityFour> entityFourRepository, ILogError logError, ICurrentUser currentUser) { } It has about 6 IRepositories plus a few others to include the required data and the dropdown list options. In my mind this is too many parameters. From a performance point of view, there is only 1 DBContext per request and the DI container will serve the same DbContext to all of the Repositories. From a code standards/readability point of view it's ugly. Is there a better way to handle this situation? Its a real world project with real world time constraints so I will not dwell on it too long, but from a learning perspective it would be good to see how such situations are handled by others.

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  • ImageResizer - AzureReader2 with Azure SDK 2.2

    - by Chris Skardon
    Originally posted on: http://geekswithblogs.net/cskardon/archive/2013/10/29/imageresizer---azurereader2-with-azure-sdk-2.2.aspxSo Azure SDK 2.2 came out recently, which means I can open my azure projects in VS 2013 (yay), so I decided to do an upgrade of my MVC4 project to MVC5, I followed this link on how to do the upgrade, and generally things went ok. I fire up my app, and run into a ‘binding’ issue, that AzureReader2 was trying to use Microsoft.WindowsAzure.Storage, Version=2.1.0.0 but alas, it couldn’t find it. I am not the only one (see stackoverflow), and one solution is to run ‘Add-BindingRedirect’ from the Package Manager Console, but that didn’t solve the problem for me, as it didn’t pick up on the Azure stuff, so I resorted to adding the redirect manually. So, in short, to get AzureReader2 to work with Azure SDK 2.2, you need to add the following to your web.config: <runtime> <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1"> <!-- Other bindings here! --> <dependentAssembly> <assemblyIdentity name="Microsoft.WindowsAzure.Storage" publicKeyToken="31bf3856ad364e35" culture="neutral"/> <bindingRedirect oldVersion="0.0.0.0-2.1.0.3" newVersion="2.1.0.3"/> </dependentAssembly> </assemblyBinding>

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  • About shared (static) Members and its behavior

    - by Allende
    I just realized that I can access shared members from instances of classes (probably this is not correct, but compile and run), and also learn/discover that, I can modify shared members, then create a new instance and access the new value of the shared member. My question is, what happens to the shared members, when it comes back to the "default" value (class declaration), how dangerous is it do this ? is it totally bad ? is it valid in some cases ?. If you want to test my point here is the code (console project vb.net) that I used to test shared members, as you can see/compile/run, the shared member "x" of the class "Hello" has default value string "Default", but at runtime it changes it, and after creating a new object of that class, this object has the new value of the shared member. Module Module1 Public Class hello Public Shared x As String = "Default" Public Sub New() End Sub End Class Sub Main() Console.WriteLine("hello.x=" & hello.x) Dim obj As New hello() Console.WriteLine("obj.x=" & obj.x) obj.x = "Default shared memeber, modified in object" Console.WriteLine("obj.x=" & obj.x) hello.x = "Defaul shared member, modified in class" Console.WriteLine("hello.x=" & hello.x) Dim obj2 As New hello() Console.WriteLine("obj2.x=" & obj2.x) Console.ReadLine() End Sub End Module UPDATE: First at all, thanks to everyone, each answer give feedback, I suppose, by respect I should choose one as "the answer", I don't want to be offensive to anyone, so please don't take it so bad if I didn't choose you answer.

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  • Acceptable placement of the composition root using dependency injection and inversion of control containers

    - by Lumirris
    I've read in several sources including Mark Seemann's 'Ploeh' blog about how the appropriate placement of the composition root of an IoC container is as close as possible to the entry point of an application. In the .NET world, these applications seem to be commonly thought of as Web projects, WPF projects, console applications, things with a typical UI (read: not library projects). Is it really going against this sage advice to place the composition root at the entry point of a library project, when it represents the logical entry point of a group of library projects, and the client of a project group such as this is someone else's work, whose author can't or won't add the composition root to their project (a UI project or yet another library project, even)? I'm familiar with Ninject as an IoC container implementation, but I imagine many others work the same way in that they can scan for a module containing all the necessary binding configurations. This means I could put a binding module in its own library project to compile with my main library project's output, and if the client wanted to change the configuration (an unlikely scenario in my case), they could drop in a replacement dll to replace the library with the binding module. This seems to avoid the most common clients having to deal with dependency injection and composition roots at all, and would make for the cleanest API for the library project group. Yet this seems to fly in the face of conventional wisdom on the issue. Is it just that most of the advice out there makes the assumption that the developer has some coordination with the development of the UI project(s) as well, rather than my case, in which I'm just developing libraries for others to use?

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  • Unit testing and Test Driven Development questions

    - by Theomax
    I'm working on an ASP.NET MVC website which performs relatively complex calculations as one of its functions. This functionality was developed some time ago (before I started working on the website) and defects have occurred whereby the calculations are not being calculated properly (basically these calculations are applied to each user which has certain flags on their record etc). Note; these defects have only been observed by users thus far, and not yet investigated in code while debugging. My questions are: Because the existing unit tests all pass and therefore do not indicate that the defects that have been reported exist; does this suggest the original code that was implemented is incorrect? i.e either the requirements were incorrect and were coded accordingly or just not coded as they were supposed to be coded? If I use the TDD approach, would I disgregard the existing unit tests as they don't show there are any problems with the calculations functionality - and I start by making some failing unit tests which test/prove there are these problems occuring, and then add code to make them pass? Note; if it's simply a bug that is occurring that can be found while debugging the code, do the unit tests need to be updated since they are already passing?

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  • Back button after doing posts on the same page

    - by user441521
    I have 3 pages to my site. The 1st page allows you to select a bunch of options. Those options get sent to the 2nd page to be displayed with some data about those options. From here I can click on a link to get to page 3 on 1 of the options. On page 3 I can create a new/edit/delete all on the same page where reloads come back to page 3. I want a "back" button on page 3 to go back to page 2, but retain the options it had from the original page 1 request. Page 1 has a bunch of check boxes which are passed to page 2 as arrays to the controller. My thought is that I have to pass these arrays (I converted them to lists) to page 3 (even thought page 3 directly doesn't need them) so that page 3 can use them in the back link to it can recreate the values page 1 sent to page 2 originally. I'm using asp.net MVC and when I pass the converted array it seems to convert it to the type instead of actually showing the values: "types=System.Collections.Generic.List" (where types is a List. Is this what is needed or are there other options to getting a "back" button in this case to go back to page 2. It's sort of a pain to pass information to page 3 that isn't really relevant to page 3 except the back button.

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  • Moving all UI logic to Client Side?

    - by Mag20
    Our team originally consisted of mostly server side developers with minimum expertise in Javascript. In ASP.NET we used to write a lot of UI logic in code-behind or more recently through controllers in MVC. A little while ago 2 high level client side developers joined our team. They can do in HTMl/CSS/Javascript pretty much anything that we could previously do with server-side code and server-side web controls: Show/hide controls Do validation Control AJAX refreshing So I started to think that maybe it would be more efficient to just create a high level API around our business logic, kinda like Amazon Fulfillment API: http://docs.amazonwebservices.com/fws/latest/APIReference/, so that client side developers would fully take over the UI, while server side developers would only concentrate on business logic. So for ordering system you would have a high level API like: OrderService.asmx CreateOrderResponse CreateOrder(CreateOrderRequest) AddOrderItem AddPayment - SubmitPayment - GetOrderByID FindOrdersByCriteria ... There would be JSON/REST access to API, so it would be easy to consume from client-side UI. We could use this API for both internal UI development and also for 3-rd parties to create their own applications. With advances in Javascript and availability of good client side developers, is it a good time to get rid of code-behind/controllers and just concentrate on developing high level APIs (ala Amazon) that client side developers can consume?

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  • thick client migration to web based application

    - by user1151597
    This query is related to application design the technology that I should consider during migration. The Scenario: I have a C#.net Winform application which communicates with a device. One of the main feature of this application is monitoring cyclic data(rate 200ms) sent from the device to the application. The request to start the cyclic data is sent only once in the beginning and then the application starts receiving data from the device until it sends a stop request. Now this same application needs to be deployed over the web in a intranet. The application is composed of a business logic layer and a communication layer which communicates with the device through UDP ports. I am trying to look at a solution which will allow me to have a single instance of the application on the server so that the device thinks that it is connected as usual and then from the business logic layer I can manage the clients. I want to reuse the code of the business layer and the communication layer as much as possible. Please let me know if webserives/WCF/ etc what i should consider to design the migration. Thanks in advance.

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