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  • The .NET 4.5 async/await Commands in Promise and Practice

    The .NET 4.5 async/await feature provides an opportunity for improving the scalability and performance of applications, particularly where tasks are more effectively done in parallel. The question is: do the scalability gains come at a cost of slowing individual methods? In this article Jon Smith investigates this issue by conducting a side-by-side evaluation of the standard synchronous methods and the new async methods in real applications.

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  • .Net Application & Database Modularity/Reuse

    - by Martaver
    I'm looking for some guidance on how to architect an app with regards to modularity, separation of concerns and re-usability. I'm working on an application (ASP.Net, C#) that has distinctly generic chunks of functionality, that I'd love to be able to lift out, all layers, into re-usable components. This means the module handles the database schema, data access, API, everything so that the next time I want to use it I can just register the module and hook into it. Developing modules of re-usable functionality is a no-brainer, but what is really confusing me is what to do when it comes to handling a core re-usable database schema that serves the module's functionality. In an ideal world, I would register a module and it would ensure that the associated database schema exists in the DB. I would code on the assumption that the tables exist, calling the module's functionality through the DLL, agnostic of the database layer. Kind of like Enterprise Library's Caching/Logging Application Block, which can create a DB schema in the target DB to use as a data store. My Questions is: What do you think is the best way to achieve this, firstly, in terms design architecture, and secondly solution structure. What patterns/frameworks do you know that exist & support this kind of thing? My thoughts so far: I mostly use Entity Framework and SQL Server DB Projects. I thought about a 'black box' approach to modules of functionality. I could use use a code-first approach in EF4, and use the ObjectContext to create a database when the module is initialized. However this means that all of the entities that my module encapsulates would be disconnected from the rest of the application because they belonged to an abstracted ObjectContext. Further - Creating appropriate indexes and references between domain entities and the module's entities would be impossible to do practically. I've thought of adopting Enterprise Library and creating my own Application Blocks. I'm not sure how this would play nice with Entity Framework (if at all) though. I like the idea of building on proven patterns & practices to encapsulate established, reusable functionality. I thought of abandoning Entity Framework for the Module, and just creating a separate DB schema for the module with its own set of stored procedures & ADO.Net. Then deploying the script at run-time if interrogation shows that it doesn't exist. But once again, for application developing outside of the application, I would want to use Entity Framework and I would have to use the module separately, disconnected from the domain ObjectContext. Has anyone had experience developing these sorts of full-stack modules? What advice can you offer? Am I biting off more than I can chew?

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  • Detecting Installed .NET Framework Versions

    - by João Angelo
    A new year is upon us and it’s also time for me to end my blogging vacations and get back to the blogosphere. However, let’s start simple… and short. More specifically with a quick way to detect the installed .NET Framework versions on a machine. You just need to fire up Internet Explorer, write the following in the address bar and press enter: javascript:alert(navigator.userAgent) If for any reason you need to copy/paste the resulting information then use the next command instead: javascript:document.write(navigator.userAgent)

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  • Going from .Net 2.0 to 4.5 [closed]

    - by Austin Henley
    For a lot of my projects I have been using an older code base and also just haven't learned the features from newer .Net/C# versions. It seems I am stuck back in the 2.0 days of the framework and language, so what should I do to make use of all latest features? It is worth pointing out this but rather than just what changes have been made, what small programs could I implement that would teach me a lot of the new features?

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  • TLS/SSL and .NET Framework 4.0

    The Secure Socket Layer is now essential for the secure exchange of digital data, and is most generally used within the HTTPS protocol. .NET now provides the Windows Communication Foundation (WCF) to implement secure communications directly. Matteo explains the TLS/SSL protocol, and takes a hands-on approach to investigate the SslStream class to show how to implement a secure communication channel

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  • Disable .net completely in a IIS6 Application Pool

    - by David L.-Pratte
    we're managing some web sites for our clients on our servers, some running Windows Server 2003 R2 and others running 2008 R2. In Windows Server 2008 R2, we can disable completely .NET framework usage for some application pools, which is great since most of our websites are still using classic ASP. After some issues with classic ASP applications being configured to run as ASP.NET 4 in a CLR 2.0 pool, we wanted to do the same thing in IIS6 - that is, have application pools without any .NET support. Is this a supported scenario in IIS6? Thanks

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  • One Exception to Aggregate Them All

    - by João Angelo
    .NET 4.0 introduced a new type of exception, the AggregateException which as the name implies allows to aggregate several exceptions inside a single throw-able exception instance. It is extensively used in the Task Parallel Library (TPL) and besides representing a simple collection of exceptions can also be used to represent a set of exceptions in a tree-like structure. Besides its InnerExceptions property which is a read-only collection of exceptions, the most relevant members of this new type are the methods Flatten and Handle. The former allows to flatten a tree hierarchy removing the need to recur while working with an aggregate exception. For example, if we would flatten the exception tree illustrated in the previous figure the result would be: The other method, Handle, accepts a predicate that is invoked for each aggregated exception and returns a boolean indicating if each exception is handled or not. If at least one exception goes unhandled then Handle throws a new AggregateException containing only the unhandled exceptions. The following code snippet illustrates this behavior and also another scenario where an aggregate exception proves useful – single threaded batch processing. static void Main() { try { ConvertAllToInt32("10", "x1x", "0", "II"); } catch (AggregateException errors) { // Contained exceptions are all FormatException // so Handle does not thrown any exception errors.Handle(e => e is FormatException); } try { ConvertAllToInt32("1", "1x", null, "-2", "#4"); } catch (AggregateException errors) { // Handle throws a new AggregateException containing // the exceptions for which the predicate failed. // In this case it will contain a single ArgumentNullException errors.Handle(e => e is FormatException); } } private static int[] ConvertAllToInt32(params string[] values) { var errors = new List<Exception>(); var integers = new List<int>(); foreach (var item in values) { try { integers.Add(Int32.Parse(item)); } catch (Exception e) { errors.Add(e); } } if (errors.Count > 0) throw new AggregateException(errors); return integers.ToArray(); }

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  • Solution to Jira web service getWorklogs method error: Object of type System.Xml.XmlNode[] cannot be stored in an array of this type

    - by DigiMortal
    When using Jira web service methods that operate on work logs you may get the following error when running your .NET application: Object of type System.Xml.XmlNode[] cannot be stored in an array of this type. In this posting I will show you solution to this problem. I don’t want to go to deep in details about this problem. I think it’s enough for this posting to mention that this problem is related to one small conflict between .NET web service support and Axis. Of course, Jira team is trying to solve it but until this problem is solved you can use solution provided here. There is good solution to this problem given by Jira forum user Kostadin. You can find it from Jira forum thread RemoteWorkLog serialization from Soap Service in C#. Solution is simple – you have to use SOAP extension class to replace new class names with old ones that .NET found from WSDL. Here is the code by Kostadin. public class JiraSoapExtensions : SoapExtension {     private Stream _streamIn;     private Stream _streamOut;       public override void ProcessMessage(SoapMessage message)     {         string messageAsString;         StreamReader reader;         StreamWriter writer;           switch (message.Stage)         {             case SoapMessageStage.BeforeSerialize:                 break;             case SoapMessageStage.AfterDeserialize:                 break;             case SoapMessageStage.BeforeDeserialize:                 reader = new StreamReader(_streamOut);                 writer = new StreamWriter(_streamIn);                 messageAsString = reader.ReadToEnd();                 switch (message.MethodInfo.Name)                 {                     case "getWorklogs":                     case "addWorklogWithNewRemainingEstimate":                     case "addWorklogAndAutoAdjustRemainingEstimate":                     case "addWorklogAndRetainRemainingEstimate":                         messageAsString = messageAsString.                             .Replace("RemoteWorklogImpl", "RemoteWorklog")                             .Replace("service", "beans");                         break;                 }                 writer.Write(messageAsString);                 writer.Flush();                 _streamIn.Position = 0;                 break;             case SoapMessageStage.AfterSerialize:                 _streamIn.Position = 0;                 reader = new StreamReader(_streamIn);                 writer = new StreamWriter(_streamOut);                 messageAsString = reader.ReadToEnd();                 writer.Write(messageAsString);                 writer.Flush(); break;         }     }       public override Stream ChainStream(Stream stream)     {         _streamOut = stream;         _streamIn = new MemoryStream();         return _streamIn;     }       public override object GetInitializer(Type type)     {         return GetType();     }       public override object GetInitializer(LogicalMethodInfo info,         SoapExtensionAttribute attribute)     {         return null;     }       public override void Initialize(object initializer)     {     } } To get this extension work with Jira web service you have to add the following block to your application configuration file (under system.web section). <webServices>   <soapExtensionTypes>    <add type="JiraStudioExperiments.JiraSoapExtensions,JiraStudioExperiments"           priority="1"/>   </soapExtensionTypes> </webServices> Weird thing is that after successfully using this extension and disabling it everything still works.

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  • Introducing NFakeMail

    - by João Angelo
    Ever had to resort to custom code to control emails sent by an application during integration and/or system testing? If you answered yes then you should definitely continue reading. NFakeMail makes it easier for developers to do integration/system testing on software that sends emails by providing a fake SMTP server. You’ll no longer have to manually validate the email sending process. It’s developed in C# and IronPython and targets the .NET 4.0 framework. With NFakeMail you can easily automate the testing of components that rely on sending mails while doing its job. Let’s take a look at some sample code, we start with a simple class containing a method that sends emails. class Notifier { public void Notify() { using (var smtpClient = new SmtpClient("localhost", 10025)) { smtpClient.Send("[email protected]", "[email protected]", "S1", "."); smtpClient.Send("[email protected]", "[email protected]", "S2", ".."); } } } Then to automate the tests for this method we only need to the following: [Test] public void Notify_T001() { using (var server = new FakeSmtpServer(10025)) { new Notifier().Notify(); // Verifies two messages are received in the next five seconds var messages = server.WaitForMessages(count: 2, timeout: 5000); // Verifies the message sender Debug.Assert(messages.All(m => m.From.Address == "[email protected]")); } } The created FakeSmtpServer instance will act as a simple SMTP server and intercept the messages sent by the Notifier class. It’s even possible to verify some fields of each intercepted message and by default all intercepted messages are saved to the file system in MIME format.

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  • Microsoft Application Request Routing with Windows Authentication

    - by theplatz
    I'm running into a problem trying to get Windows Authentication working in an environment that uses Microsoft Application Request Routing and was hoping someone might be able to help. The problem I'm running into is that only some requests are authenticated, while others fail with 401 errors. I have followed the Special Case of Running IIS 7.0 in a Web Farm instructions found at http://blogs.msdn.com/b/webtopics/archive/2009/01/19/service-principal-name-spn-checklist-for-kerberos-authentication-with-iis-7-0.aspx to no avail. My current server setup looks like the following: ARR Two servers set up with IIS shared configuration using IIS 7.5 on Windows 2008 R2 Anonymous authentication turned on for the Default Web Site Web Farm Two servers running IIS 7.5 on Windows 2008 R2 Three web sites set up using port binding to differentiate between virtual hosts. Ports being used are 8000, 8001, and 8002 Application pools for Windows Authentication all use a common domain account SPN added to domain account for http/<virthalhost-name>:<port-number> and http/<virtualhost-name>.<fully-qualified-domain>:<port-number> The IIS logs show the following when authentication is working/failing. If I understand correctly, all requests should show DOMAIN\User_Name: 2012-11-19 15:03:17 CLUSTER-IP-ADDRESS GET /home/stylesheets/techweb.landing.css - 8002 DOMAIN\User_Name ARR-HOST-1-IP-ADDRESS 200 0 0 62 2012-11-19 15:03:17 CLUSTER-IP-ADDRESS GET /home/images/user-background-right.gif - 8002 - ARR-HOST-1-IP-ADDRESS 401 2 5 0 2012-11-19 15:03:17 CLUSTER-IP-ADDRESS GET /home/images/user-background-left.gif - 8002 DOMAIN\User_Name ARR-HOST-IP-ADDRESS 200 0 0 31 2012-11-19 15:03:17 CLUSTER-IP-ADDRESS GET /home/images/user-icon.png - 8002 - ARR-HOST-1-IP-ADDRESS 401 2 5 0 2012-11-19 15:03:17 CLUSTER-IP-ADDRESS GET /home/images/user-icon.png - 8002 - ARR-HOST-1-IP-ADDRESS 401 1 2148074248 0 2012-11-19 15:03:17 CLUSTER-IP-ADDRESS GET /home/images/application-icon.png - 8002 - ARR-HOST-1-IP-ADDRESS 401 1 2148074248 0 2012-11-19 15:03:17 CLUSTER-IP-ADDRESS GET /home/images/user-background-right.gif - 8002 - ARR-HOST-1-IP-ADDRESS 401 1 3221225581 15 2012-11-19 15:03:17 CLUSTER-IP-ADDRESS GET /home/images/building.gif - 8002 DOMAIN\User_Name ARR-HOST-2-IP-ADDRESS 200 0 0 218 Does anyone know what might cause this problem and how I can resolve it?

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  • Regain Sudo rights after removing from admin group

    - by berkes
    Hello, I accidentally removed myself from the admin group when editing the user. Now I can no longer use sudo. The error says: ber is not in the sudoers file. This incident will be reported. I booted up in rescue mode, but, when going into root prompt, it asks me for the root password. I don't have one, and providing with my own (first and only ubuntu-user) password, it won't allow entrance. My harddisk is encrypted, but only the /home/user part, not the entire disk, afaik. What can I do?

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  • Windows : Désactiver les privilèges d'admin sécuriserait les ordinateurs, en empêchant l'installatio

    Désactiver les privilèges d'admin sécuriserait les ordinateurs, en empêchant l'installation de malwares Une étude orchestrée par BeyondTrust s'est penchée sur les failles de sécurité atteignant les systèmes Microsoft. Elle montre que les dangers des vulnérabilités peuvent être minimisés si les utilisateurs concernés attendent que les administrateurs des systèmes y appliquent les patchs mensuels fournis par Microsoft. La découverte clé de ce travail est le fait qu'un système soit plus sûr si les droits d'administrateur sont supprimés. Ces droits permettent à un individu d'endosser le rôle de responsable du système, et de l'administrer. Il peut alors contrôler quels logiciels et composants peuvent être ...

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  • Admin user runs slower than the guest account

    - by Mykid
    My user is the Admin, it runs fine, not bugs or anything, I used Ubuntu Tweak for a few things like logging options and the sidebar and Unity Tweak for hotcornes and minimize window and that's about it. My second user (for my mother) is faster. I don't know how or why. Let me know what I need to enter on the terminal to give you more info, if you think it's normal also let me know. I have a Compaq Presario CQ56, Ubuntu 14.04 64bit dual boot with Windows 7 Premium, 3GB of ram DDR3, Celeron(R) Dual-Core CPU T3500 @ 2.10GHz × 2.

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  • Disable Razors default .cshtml handler in a ASP.NET Web Application

    - by mythz
    Does anyone know how to disable the .cshtml extension completely from an ASP.NET Web Application? In essence I want to hijack the .cshtml extension and provide my own implementation based on a RazorEngine host, although when I try to access the page.cshtml directly it appears to be running under an existing WebPages razor host that I'm trying to disable. Note: it looks like its executing .cshtml pages under the System.Web.WebPages.Razor context as the Microsoft.Data Database is initialized. I don't even have any Mvc or WebPages dlls referenced, just System.Web.dll and a local copy of System.Web.Razor with RazorEngine.dll I've created a new ASP.NET Web .NET 4.0 Application and have tried to clear all buildProviders and handlers as seen below: <system.web> <httpModules> <clear/> </httpModules> <compilation debug="true" targetFramework="4.0"> <buildProviders> <clear/> </buildProviders> </compilation> <httpHandlers> <clear/> <add path="*" type="MyHandler" verb="*"/> </httpHandlers> </system.web> <system.webServer> <modules runAllManagedModulesForAllRequests="true"> <clear/> </modules> <handlers> <clear/> <add path="*" name="MyHandler" type="MyHandler" verb="*" preCondition="integratedMode" resourceType="Unspecified" allowPathInfo="true" /> </handlers> </system.webServer> Although even with this, when I visit any page.cshtml page it still bypasses My wildcard handler and tries to execute the page itself. Basically I want to remove all traces of .cshtml handlers/buildProviders/preprocessing so I can serve the .cshtml pages myself, anyone know how I can do this?

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  • 'License expired' error when dynamically generating Excel docs in ASP.NET

    - by Mac
    Anyone familiar with error below? When I run my webapp to generate a dynamic excel doc from my local machine it works fine but when the same piece of code is invoked on the server I get the below error. It seems like it's a permissions issues since it works on my machine but not the server but I don't know where to start in order to pinpoint the problem. Any guidance/help is greatly appreciated! Server Error in '/' Application. -------------------------------------------------------------------------------- This command is unavailable because the license to use this application has expired. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.Runtime.InteropServices.COMException: This command is unavailable because the license to use this application has expired. Source Error: An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below. Stack Trace: [COMException (0x800a03ec): This command is unavailable because the license to use this application has expired.] Microsoft.Office.Interop.Excel.Workbooks.Add(Object Template) +0 PaymentsReport.Page_Load(Object sender, EventArgs e) +70 System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +15 System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +34 System.Web.UI.Control.OnLoad(EventArgs e) +99 System.Web.UI.Control.LoadRecursive() +47 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1061 Office/Excel is installed on the server and I can open/save excel docs on the server. Could it be the version of excel on the server vs. my local machine? If so how can I make sure I have the latest on the server?

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  • please clarify some aspects of AJAX with ASP.NET web forms for a beginner

    - by citrus
    Im familiar with asp.net web forms. I would now like to move on to writing web applications that use AJAX. I would like to get to the stage where I can create an app: that has "edit in place" (no page reload) where i can reorder images using drag and drop (also saves the order to DB) that has google like search suggestions while typing on the fly 1)So do I need to learn how to use AJAX.net and Jquery(my JS library of choice)? Can I make do using only AJAX.net or only Jquery? 2)As far a I know, Jquery will allow me to perform client side manipulations/actions and AJAX.net is the part that will allow me to connect some of my actions to the Server. EG. if I wanted to re-order elements using drag and drop, I would use Jquery, but in order to save the result of the re-order to the DB I would have to use AJAX.net correct? 2a)So In order to learn how to do the above Im thinking I should first learn Jquery so I know how to manipulate/ select elements, and then I can lean how to save these changes to the DB. 3)I searched the books titled "ASP.net AJAX in action" and ASP.net 3.5 AJAX, both of these books did not contain any references to "Jquery". Is this because they may be using a different JS library, or perhaps the book focuses on the AJAX user controls? I just found it confusing that 2 popular AJAX books dont make any reference to Jquery. Thanks for any help.

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  • Dependency Injection Question - ASP.NET

    - by Paul
    I'm starting a web application that contains the following projects: Booking.Web Booking.Services Booking.DataObjects Booking.Data I'm using the repository pattern in my data project only. All services will be the same, no matter what happens. However, if a customer wants to use Access, it will use a different data repository than if the customer wants to use SQL Server. I have StructureMap, and want to be able to do the following: Web project is unaffected. It's a web forms application that will only know about the services project and the dataobjects project. When a service is called, it will use StructureMap (by looking up the bootstrapper.cs file) to see which data repository to use. An example of a services class is the error logging class: public class ErrorLog : IErrorLog { ILogging logger; public ErrorLog() { } public ErrorLog(ILogging logger) { this.logger = logger; } public void AddToLog(string errorMessage) { try { AddToDatabaseLog(errorMessage); } catch (Exception ex) { AddToFileLog(ex.Message); } finally { AddToFileLog(errorMessage); } } private void AddToDatabaseLog(string errorMessage) { ErrorObject error = new ErrorObject { ErrorDateTime = DateTime.Now, ErrorMessage = errorMessage }; logger.Insert(error); } private void AddToFileLog(string errorMessage) { // TODO: Take this value from the web.config instead of hard coding it TextWriter writer = new StreamWriter(@"E:\Work\Booking\Booking\Booking.Web\Logs\ErrorLog.txt", true); writer.WriteLine(DateTime.Now.ToString() + " ---------- " + errorMessage); writer.Close(); } } I want to be able to call this service from my web project, without defining which repository to use for the data access. My boostrapper.cs file in the services project is defined as: public class Bootstrapper { public static void ConfigureStructureMap() { ObjectFactory.Initialize(x => { x.AddRegistry(new ServiceRegistry()); } ); } public class ServiceRegistry : Registry { protected override void configure() { ForRequestedType<IErrorLog>().TheDefaultIsConcreteType<Booking.Services.Logging.ErrorLog>(); ForRequestedType<ILogging>().TheDefaultIsConcreteType<SqlServerLoggingProvider>(); } } } What else do I need to get this to work? When I defined a test, the ILogger object was null. Thanks,

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  • stuck with enable session state

    - by Shrewd Demon
    hi i have an application wherein i am accessing the Session object in the CommonCode.cs file that resides in the App_Code folder. But when the session object is accessed the application throws me an error: Session state can only be used when enableSessionState is set to true, either in a configuration file or in the Page directive. Please also make sure that System.Web.SessionStateModule or a custom session state module is included in the \\ section in the application configuration. Now i have already enabled the session state property in the web.config file, here is my code from the web.config file: <pages enableSessionState="true" autoEventWireup="true"> <controls> <add tagPrefix="asp" namespace="System.Web.UI" assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/> <add tagPrefix="asp" namespace="System.Web.UI.WebControls" assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/> </controls> </pages> I dont understand why am i still getting that error !! please help ! thanks a lot.

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  • Visual Studio 2010 Professional - Problem Unit-Testing Web Services

    - by Ben
    Have created a very simple Web Service (asmx) in Visual Studio 2010 Professional, and am trying to use the auto-generated unit test cases. I get something that seems quite familiar on this site: The web site could not be configured correctly; getting ASP.NET process information failed. Requesting http://localhost:81/zfp/VSEnterpriseHelper.axd return an error: The remote server returned an error: (500) Internal Server Error. http://stackoverflow.com/questions/260432/500-error-running-visual-studio-asp-net-unit-test I have tried: 1. Running the tests on IIS rather than ASP.NET Development Server 2. Adding and then removing the XML fragment to my Web Service's .config file 3. Giving the MACHINE\ASPNET account Full control to the local folder My current questions: 1. Why am I being bothered with this instrumentation / code coverage DLL, when this doesn't seem to be something that ships with Visual Studio 2010 Professional? Is there any way I can turn it off? 2. I'm placing the node under in Web.config - is that the correct node? 3. Is it possible to bind to a web service without using the webby test attributes? I've seen other people advising making the Web Service as light-weight as possible. I'm trying to call it with jQuery / AJAX / JSON, so being able to debug the actual web service would be really helpful. Best wishes, Ben

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  • unexpected behaviour of object stored in web service Session

    - by draconis
    Hi. I'm using Session variables inside a web service to maintain state between successive method calls by an external application called QBWC. I set this up by decorating my web service methods with this attribute: [WebMethod(EnableSession = true)] I'm using the Session variable to store an instance of a custom object called QueueManager. The QueueManager has a property called ChangeQueue which looks like this: [Serializable] public class QueueManager { ... public Queue<QBChange> ChangeQueue { get; set; } ... where QBChange is a custom business object belonging to my web service. Now, every time I get a call to a method in my web service, I use this code to retrieve my QueueManager object and access my queue: QueueManager qm = (QueueManager)Session[ticket]; then I remove an object from the queue, using qm.dequeue() and then I save the modified query manager object (modified because it contains one less object in the queue) back to the Session variable, like so: Session[ticket] = qm; ready for the next web service method call using the same ticket. Now here's the thing: if I comment out this last line //Session[ticket] = qm; , then the web service behaves exactly the same way, reducing the size of the queue between method calls. Now why is that? The web service seems to be updating a class contained in serialized form in a Session variable without being asked to. Why would it do that? When I deserialize my Queuemanager object, does the qm variable hold a reference to the serialized object inside the Session[ticket] variable?? This seems very unlikely.

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  • Convert asp.net application to windows forms app

    - by rogdawg
    I have written and deployed an ASP.NET application that is pretty complex. It uses XSL transformations to create web forms for a large variety of data objects. The data comes from the database as XML via a web service. Now, I need to create a Windows desktop application that will provide a small subset of the web applications functionality to a user who may not have access to the web (working in remote areas). I will provide the data syncing using the MS Sync Framework. And I will have the desktop use a local data store. I would like to use the same xslt files in the desktop app that I use in the web app for the form creation so that, if changes are made, the desktop app can update itself when it connects and syncs its data. But, I am wondering how to replicate the asp.net codebehind logic of my web app in the windows forms. If I use a browser control to render the XSLTransformation result, then how could I handle click events, etc, in the form? Also, can I launch other windows as "dialog boxes" from my windows forms (I do this in my web app using RadControls functionality)? Thanks for any advice you can give.

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  • TreeGridView in VB.NET 3.5

    - by hgulyan
    Hi, I need a control like a TreeView, but with option to use multiple columns in a node. There's a controls called TreeListView on codeproject (link text), but it's doesn't have some features I need. 1) I need a key on every node or somehow bind an object to the control. 2) I need to change node image(like in file systems - folders and files) 3) I need a CheckBox on every node 4) I need path and level of a node. Does anyone know a windows control, that does all this? Thank you.

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  • Deserializing JSON into an object with Json.NET

    - by hmemcpy
    Hello. I'm playing a little bit with the new StackOverflow API. Unfortunately, my JSON is a bit weak, so I need some help. I'm trying to deserialize this JSON of a User: {"user":{ "user_id": 1, "user_type": "moderator", "creation_date": 1217514151, "display_name": "Jeff Atwood", ... "accept_rate": 100 }} into an object which I've decorated with JsonProperty attributes: [JsonObject(MemberSerialization.OptIn)] public class User { [JsonProperty("user_id", Required = Required.Always)] public virtual long UserId { get; set; } [JsonProperty("display_name", Required = Required.Always)] public virtual string Name { get; set; } ... } I get the following exception: Newtonsoft.Json.JsonSerializationException: Required property 'user_id' not found in JSON. Is this because the JSON object is an array? If so, how can I deserialize it to the one User object? Thanks in advance!

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