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  • How to remove the link if value is 0 using asp.net mvc

    - by kumar
    i have this code.. <table class="dashboard-table"> <thead> <tr> <th>&nbsp;</th> <th>Worked</th> </tr> </thead> <% foreach (var e in Model.ExceptionsByType) { %> <tr> <td> <%=Html.ActionLink(e.ExceptionTypeName, "VirtualScrollingDataRequested", Model.exceptionCategory.GetControllerName(), new { C_EXCPT_TYPE = e.ExceptionTypeID, GUI_SPEC_STAT_DSPL = 2, C_EXCPT_CATG = Model.exceptionCategory.Id, @ASSET_CLASS = string.Empty, @INST_MNEM = string.Empty, @_lock = "ALL" }, new { @title = e.BuildGridTitle(2, e.ExceptionTypeName) })%> </td> <td class="number"> <%=e.WorkedExceptions %> </td> </tr> <% } %> </table> e.WorkedExceptions is the count of exceptions.. I need to to the condition here if the e.workedexceptions == 0 I need to remove the link? please can any body hlep me out? thanks

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  • Conheça a nova Windows Azure

    - by Leniel Macaferi
    Hoje estamos lançando um grande conjunto de melhorias para a Windows Azure. A seguir está um breve resumo de apenas algumas destas melhorias: Novo Portal de Administração e Ferramentas de Linha de Comando O lançamento de hoje vem com um novo portal para a Windows Azure, o qual lhe permitirá gerenciar todos os recursos e serviços oferecidos na Windows Azure de uma forma perfeitamente integrada. O portal é muito rápido e fluido, suporta filtragem e classificação dos dados (o que o torna muito fácil de usar em implantações/instalações de grande porte), funciona em todos os navegadores, e oferece um monte de ótimos e novos recursos - incluindo suporte nativo à VM (máquina virtual), Web site, Storage (armazenamento), e monitoramento de Serviços hospedados na Nuvem. O novo portal é construído em cima de uma API de gerenciamento baseada no modelo REST dentro da Windows Azure - e tudo o que você pode fazer através do portal também pode ser feito através de programação acessando esta Web API. Também estamos lançando hoje ferramentas de linha de comando (que, igualmente ao portal, chamam as APIs de Gerenciamento REST) para tornar ainda ainda mais fácil a criação de scripts e a automatização de suas tarefas de administração. Estamos oferecendo para download um conjunto de ferramentas para o Powershell (Windows) e Bash (Mac e Linux). Como nossos SDKs, o código destas ferramentas está hospedado no GitHub sob uma licença Apache 2. Máquinas Virtuais ( Virtual Machines [ VM ] ) A Windows Azure agora suporta a capacidade de implantar e executar VMs duráveis/permanentes ??na nuvem. Você pode criar facilmente essas VMs usando uma nova Galeria de Imagens embutida no novo Portal da Windows Azure ou, alternativamente, você pode fazer o upload e executar suas próprias imagens VHD customizadas. Máquinas virtuais são duráveis ??(o que significa que qualquer coisa que você instalar dentro delas persistirá entre as reinicializações) e você pode usar qualquer sistema operacional nelas. Nossa galeria de imagens nativa inclui imagens do Windows Server (incluindo o novo Windows Server 2012 RC), bem como imagens do Linux (incluindo Ubuntu, CentOS, e as distribuições SUSE). Depois de criar uma instância de uma VM você pode facilmente usar o Terminal Server ou SSH para acessá-las a fim de configurar e personalizar a máquina virtual da maneira como você quiser (e, opcionalmente, capturar uma snapshot (cópia instantânea da imagem atual) para usar ao criar novas instâncias de VMs). Isto te proporciona a flexibilidade de executar praticamente qualquer carga de trabalho dentro da plataforma Windows Azure.   A novo Portal da Windows Azure fornece um rico conjunto de recursos para o gerenciamento de Máquinas Virtuais - incluindo a capacidade de monitorar e controlar a utilização dos recursos dentro delas.  Nosso novo suporte à Máquinas Virtuais também permite a capacidade de facilmente conectar múltiplos discos nas VMs (os quais você pode então montar e formatar como unidades de disco). Opcionalmente, você pode ativar o suporte à replicação geográfica (geo-replication) para estes discos - o que fará com que a Windows Azure continuamente replique o seu armazenamento em um data center secundário (criando um backup), localizado a pelo menos 640 quilômetros de distância do seu data-center principal. Nós usamos o mesmo formato VHD que é suportado com a virtualização do Windows hoje (o qual nós lançamos como uma especificação aberta), de modo a permitir que você facilmente migre cargas de trabalho existentes que você já tenha virtualizado na Windows Azure.  Também tornamos fácil fazer o download de VHDs da Windows Azure, o que também oferece a flexibilidade para facilmente migrar cargas de trabalho das VMs baseadas na nuvem para um ambiente local. Tudo o que você precisa fazer é baixar o arquivo VHD e inicializá-lo localmente - nenhuma etapa de importação/exportação é necessária. Web Sites A Windows Azure agora suporta a capacidade de rapidamente e facilmente implantar web-sites ASP.NET, Node.js e PHP em um ambiente na nuvem altamente escalável que te permite começar pequeno (e de maneira gratuita) de modo que você possa em seguida, adaptar/escalar sua aplicação de acordo com o crescimento do seu tráfego. Você pode criar um novo web site na Azure e tê-lo pronto para implantação em menos de 10 segundos: O novo Portal da Windows Azure oferece suporte integrado para a administração de Web sites, incluindo a capacidade de monitorar e acompanhar a utilização dos recursos em tempo real: Você pode fazer o deploy (implantação) para web-sites em segundos usando FTP, Git, TFS e Web Deploy. Também estamos lançando atualizações para as ferramentas do Visual Studio e da Web Matrix que permitem aos desenvolvedores uma fácil instalação das aplicações ASP.NET nesta nova oferta. O suporte de publicação do VS e da Web Matrix inclui a capacidade de implantar bancos de dados SQL como parte da implantação do site - bem como a capacidade de realizar a atualização incremental do esquema do banco de dados com uma implantação realizada posteriormente. Você pode integrar a publicação de aplicações web com o controle de código fonte ao selecionar os links "Set up TFS publishing" (Configurar publicação TFS) ou "Set up Git publishing" (Configurar publicação Git) que estão presentes no dashboard de um web-site: Ao fazer isso, você habilitará a integração com o nosso novo serviço online TFS (que permite um fluxo de trabalho do TFS completo - incluindo um build elástico e suporte a testes), ou você pode criar um repositório Git e referenciá-lo como um remote para executar implantações automáticas. Uma vez que você executar uma implantação usando TFS ou Git, a tab/guia de implantações/instalações irá acompanhar as implantações que você fizer, e permitirá que você selecione uma implantação mais antiga (ou mais recente) para que você possa rapidamente voltar o seu site para um estado anterior do seu código. Isso proporciona uma experiência de fluxo de trabalho muito poderosa.   A Windows Azure agora permite que você implante até 10 web-sites em um ambiente de hospedagem gratuito e compartilhado entre múltiplos usuários e bancos de dados (onde um site que você implantar será um dos vários sites rodando em um conjunto compartilhado de recursos do servidor). Isso te fornece uma maneira fácil para começar a desenvolver projetos sem nenhum custo envolvido. Você pode, opcionalmente, fazer o upgrade do seus sites para que os mesmos sejam executados em um "modo reservado" que os isola, de modo que você seja o único cliente dentro de uma máquina virtual: E você pode adaptar elasticamente a quantidade de recursos que os seus sites utilizam - o que te permite por exemplo aumentar a capacidade da sua instância reservada/particular de acordo com o aumento do seu tráfego: A Windows Azure controla automaticamente o balanceamento de carga do tráfego entre as instâncias das VMs, e você tem as mesmas opções de implantação super rápidas (FTP, Git, TFS e Web Deploy), independentemente de quantas instâncias reservadas você usar. Com a Windows Azure você paga por capacidade de processamento por hora - o que te permite dimensionar para cima e para baixo seus recursos para atender apenas o que você precisa. Serviços da Nuvem (Cloud Services) e Cache Distribuído (Distributed Caching) A Windows Azure também suporta a capacidade de construir serviços que rodam na nuvem que suportam ricas arquiteturas multicamadas, gerenciamento automatizado de aplicações, e que podem ser adaptados para implantações extremamente grandes. Anteriormente nós nos referíamos a esta capacidade como "serviços hospedados" - com o lançamento desta semana estamos agora rebatizando esta capacidade como "serviços da nuvem". Nós também estamos permitindo um monte de novos recursos com eles. Cache Distribuído Um dos novos recursos muito legais que estão sendo habilitados com os serviços da nuvem é uma nova capacidade de cache distribuído que te permite usar e configurar um cache distribuído de baixa latência, armazenado na memória (in-memory) dentro de suas aplicações. Esse cache é isolado para uso apenas por suas aplicações, e não possui limites de corte. Esse cache pode crescer e diminuir dinamicamente e elasticamente (sem que você tenha que reimplantar a sua aplicação ou fazer alterações no código), e suporta toda a riqueza da API do Servidor de Cache AppFabric (incluindo regiões, alta disponibilidade, notificações, cache local e muito mais). Além de suportar a API do Servidor de Cache AppFabric, esta nova capacidade de cache pode agora também suportar o protocolo Memcached - o que te permite apontar código escrito para o Memcached para o cache distribuído (sem que alterações de código sejam necessárias). O novo cache distribuído pode ser configurado para ser executado em uma de duas maneiras: 1) Utilizando uma abordagem de cache co-localizado (co-located). Nesta opção você aloca um percentual de memória dos seus roles web e worker existentes para que o mesmo seja usado ??pelo cache, e então o cache junta a memória em um grande cache distribuído.  Qualquer dado colocado no cache por uma instância do role pode ser acessado por outras instâncias do role em sua aplicação - independentemente de os dados cacheados estarem armazenados neste ou em outro role. O grande benefício da opção de cache "co-localizado" é que ele é gratuito (você não precisa pagar nada para ativá-lo) e ele te permite usar o que poderia ser de outra forma memória não utilizada dentro das VMs da sua aplicação. 2) Alternativamente, você pode adicionar "cache worker roles" no seu serviço na nuvem que são utilizados unicamente para o cache. Estes também serão unidos em um grande anel de cache distribuído que outros roles dentro da sua aplicação podem acessar. Você pode usar esses roles para cachear dezenas ou centenas de GBs de dados na memória de forma extramente eficaz - e o cache pode ser aumentado ou diminuído elasticamente durante o tempo de execução dentro da sua aplicação: Novos SDKs e Ferramentas de Suporte Nós atualizamos todos os SDKs (kits para desenvolvimento de software) da Windows Azure com o lançamento de hoje para incluir novos recursos e capacidades. Nossos SDKs estão agora disponíveis em vários idiomas, e todo o código fonte deles está publicado sob uma licença Apache 2 e é mantido em repositórios no GitHub. O SDK .NET para Azure tem em particular um monte de grandes melhorias com o lançamento de hoje, e agora inclui suporte para ferramentas, tanto para o VS 2010 quanto para o VS 2012 RC. Estamos agora também entregando downloads do SDK para Windows, Mac e Linux nos idiomas que são oferecidos em todos esses sistemas - de modo a permitir que os desenvolvedores possam criar aplicações Windows Azure usando qualquer sistema operacional durante o desenvolvimento. Muito, Muito Mais O resumo acima é apenas uma pequena lista de algumas das melhorias que estão sendo entregues de uma forma preliminar ou definitiva hoje - há muito mais incluído no lançamento de hoje. Dentre estas melhorias posso citar novas capacidades para Virtual Private Networking (Redes Privadas Virtuais), novo runtime do Service Bus e respectivas ferramentas de suporte, o preview público dos novos Azure Media Services, novos Data Centers, upgrade significante para o hardware de armazenamento e rede, SQL Reporting Services, novos recursos de Identidade, suporte para mais de 40 novos países e territórios, e muito, muito mais. Você pode aprender mais sobre a Windows Azure e se cadastrar para experimentá-la gratuitamente em http://windowsazure.com.  Você também pode assistir a uma apresentação ao vivo que estarei realizando às 1pm PDT (17:00Hs de Brasília), hoje 7 de Junho (hoje mais tarde), onde eu vou passar por todos os novos recursos. Estaremos abrindo as novas funcionalidades as quais me referi acima para uso público poucas horas após o término da apresentação. Nós estamos realmente animados para ver as grandes aplicações que você construirá com estes novos recursos. Espero que ajude, - Scott   Texto traduzido do post original por Leniel Macaferi.

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  • First toe in the water with Object Databases : DB4O

    - by REA_ANDREW
    I have been wanting to have a play with Object Databases for a while now, and today I have done just that.  One of the obvious choices I had to make was which one to use.  My criteria for choosing one today was simple, I wanted one which I could literally wack in and start using, which means I wanted one which either had a .NET API or was designed/ported to .NET.  My decision was between two being: db4o MongoDb I went for db4o for the single reason that it looked like I could get it running and integrated the quickest.  I am making a Blogging application and front end as a project with which I can test and learn with these object databases.  Another requirement which I thought I would mention is that I also want to be able to use the said database in a shared hosting environment where I cannot install, run and maintain a server instance of said object database.  I can do exactly this with db4o. I have not tried to do this with MongoDb at time of writing.  There are quite a few in the industry now and you read an interesting post about different ones and how they are used with some of the heavy weights in the industry here : http://blog.marcua.net/post/442594842/notes-from-nosql-live-boston-2010 In the example which I am building I am using StructureMap as my IOC.  To inject the object for db4o I went with a Singleton instance scope as I am using a single file and I need this to be available to any thread on in the process as opposed to using the server implementation where I could open and close client connections with the server handling each one respectively.  Again I want to point out that I have chosen to stick with the non server implementation of db4o as I wanted to use this in a shared hosting environment where I cannot have such servers installed and run.     public static class Bootstrapper    {        public static void ConfigureStructureMap()        {            ObjectFactory.Initialize(x => x.AddRegistry(new MyApplicationRegistry()));        }    }    public class MyApplicationRegistry : Registry    {        public const string DB4O_FILENAME = "blog123";        public string DbPath        {            get            {                return Path.Combine(Path.GetDirectoryName(Assembly.GetAssembly(typeof(IBlogRepository)).Location), DB4O_FILENAME);            }        }        public MyApplicationRegistry()        {            For<IObjectContainer>().Singleton().Use(                () => Db4oEmbedded.OpenFile(Db4oEmbedded.NewConfiguration(), DbPath));            Scan(assemblyScanner =>            {                assemblyScanner.TheCallingAssembly();                assemblyScanner.WithDefaultConventions();            });        }    } So my code above is the structure map plumbing which I use for the application.  I am doing this simply as a quick scratch pad to play around with different things so I am simply segregating logical layers with folder structure as opposed to different assemblies.  It will be easy if I want to do this with any segment but for the purposes of example I have literally just wacked everything in the one assembly.  You can see an example file structure I have on the right.  I am planning on testing out a few implementations of the object databases out there so I can program to an interface of IBlogRepository One of the things which I was unsure about was how it performed under a multi threaded environment which it will undoubtedly be used 9 times out of 10, and for the reason that I am using the db context as a singleton, I assumed that the library was of course thread safe but I did not know as I have not read any where in the documentation, again this is probably me not reading things correctly.  In short though I threw together a simple test where I simply iterate to a limit each time kicking a common task off with a thread from a thread pool.  This task simply created and added an random Post and added it to the storage. The execution of the threads I put inside the Setup of the Test and then simply ensure the number of posts committed to the database is equal to the number of iterations I made; here is the code I used to do the multi thread jobs: [TestInitialize] public void Setup() { var sw = new System.Diagnostics.Stopwatch(); sw.Start(); var resetEvent = new ManualResetEvent(false); ThreadPool.SetMaxThreads(20, 20); for (var i = 0; i < MAX_ITERATIONS; i++) { ThreadPool.QueueUserWorkItem(delegate(object state) { var eventToReset = (ManualResetEvent)state; var post = new Post { Author = MockUser, Content = "Mock Content", Title = "Title" }; Repository.Put(post); var counter = Interlocked.Decrement(ref _threadCounter); if (counter == 0) eventToReset.Set(); }, resetEvent); } WaitHandle.WaitAll(new[] { resetEvent }); sw.Stop(); Console.WriteLine("{0:00}.{1:00} seconds", sw.Elapsed.Seconds, sw.Elapsed.Milliseconds); }   I was not doing this to test out the speed performance of db4o but while I was doing this I could not help but put in a StopWatch and see out of sheer interest how fast it would take to insert a number of Posts.  I tested it out in this case with 10000 inserts of a small, simple POCO and it resulted in an average of:  899.36 object inserts / second.  Again this is just  simple crude test which came out of my curiosity at how it performed under many threads when using the non server implementation of db4o. The spec summary of the computer I used is as follows: With regards to the actual Repository implementation itself, it really is quite straight forward and I have to say I am very surprised at how easy it was to integrate and get up and running.  One thing I have noticed in the exposure I have had so far is that the Query returns IList<T> as opposed to IQueryable<T> but again I have not looked into this in depth and this could be there already and if not they have provided everything one needs to make there own repository.  An example of a couple of methods from by db4o implementation of the BlogRepository is below: public class BlogRepository : IBlogRepository { private readonly IObjectContainer _db; public BlogRepository(IObjectContainer db) { _db = db; } public void Put(DomainObject obj) { _db.Store(obj); } public void Delete(DomainObject obj) { _db.Delete(obj); } public Post GetByKey(object key) { return _db.Query<Post>(post => post.Key == key).FirstOrDefault(); } … Anyways I hope to get a few more implementations going of the object databases and literally just get familiarized with them and the concept of no sql databases. Cheers for now, Andrew

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  • A debugging experience with "highly compatible" ASP.NET 4.5

    - by Jeff
    I have to admit that I will pretty much upgrade software for no reason other than being on the latest version. I won't do it if it's super expensive (Adobe gets money from me about once every three or four years at best), but particularly with frameworks and stuff generally available as part of my MSDN subscription, I'll be bleeding edge. CoasterBuzz was running on the MVC 4 framework pretty much as soon as they did a "go live" license for it. I didn't really jump in head-first with Windows 8 and Visual Studio 2012, in part because I just wasn't interested in doing the reinstalls for each new version. Turns out there weren't that many revisions anyway. But when the final versions were released a week and a half ago, I jumped in. I saw on one of the Microsoft sites that .Net 4.5 was a "highly compatible in-place update" to the framework. Good enough for me. I was obviously running it by default in Windows 8, and installed it on my production server. I suppose it's "highly compatible," except when it isn't. Three of my sites are running with various flavors of the MVC version of POP Forums. All of them stopped working under ASP.NET 4.5. It was not immediately obvious what the problem might be beyond an exception indicating that there were no repository classes registered with Ninject, which I use for dependency injection in the forums. This was made all the more weird by the fact that it ran fine locally in the dev Web host. My first instinct was to spin up a Windows Server VM on my local box and put the remote debugger on it. (Side note: running multiple VM's on a Retina MacBook Pro with 16 gigs of RAM is pretty much the most awesome thing ever. I can't believe this computer is for real, and not a 50-pound tower under my desk.) What might have been going on in IIS that doesn't happen in Visual Studio? In the debugging process, I realized that I might be looking in the wrong place. POP Forums creates a Ninject container using a method called from a PreApplicationStartMethod attribute, and at that time registers a module (what Ninject uses to map interfaces to implementations) that maps all of the core dependencies. It also creates an instance of an HttpModule that originally hosted the "services" (search indexing, mailer, etc.), but now just records errors. That's all well and good, but the actual repository mapping, where data is actually read or persisted, happens in Application_Start() in global.asax. The idea there is that you can swap out the SqlSingleWebServer repos for something tuned for multiple servers, Oracle or something else. Of course, if I used something like StructureMap, which does convention-based mapping for dependency injection (a class implementing ISettingsRepository called SettingsRepository is automagically mapped), I wouldn't have to worry about it. In any case, the HttpModule, being instantiated before Application_Start() gets to run, would throw because there was no repo mapped where it could get settings from the database. This makes total sense. The fix is sort of a hack, where I don't setup the innards of the HttpModule until a call to its BeginRequest is made. I say it's a hack, because its primary function, logging exceptions, won't work until the app has warmed up. Still, this brings up an interesting question about the race condition, and what changed in 4.5 when it's running in IIS. In ASP.NET 4, it would appear that the code called via the PreApplicationStartMethod was either failing silently, and running again later, or it was getting to that code after Application_Start was called. In any case, weird thing. The real pain point I'm experiencing now is a bug in MVC 4 that is extremely serious because it renders the mobile/alternate view functionality very much broken.

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  • Win a Free Copy of Windows Presentation Foundation 4.5 Cookbook

    - by Ricardo Peres
    Win A free copy of the 'Windows Presentation Foundation 4.5 Cookbook', just by commenting! For the contest, Packt Publishing has two eBook copies of Windows Presentation Foundation 4.5 Cookbookto be given away to two lucky winners. How you can win: To win your copy of this book, all you need to do is come up with a comment below highlighting the reason "why you would like to win this book”. Duration of the contest & selection of winners: The contest is valid for 7 days (until November 26), and is open to everyone. Winners will be selected on the basis of their comment posted. Windows Presentation Foundation 4.5 Cookbookis written by Pavel Yosifovich, the CTO of CodeValue (http://www.codevalue.net), a software development, consulting, and training company, based in Israel. This book is written in an easy-to-read style, with a strong emphasis on real-world, practical examples. Step-by-step explanations are provided for performing important tasks. This book is the best guide for C# developer who is looking forward to increase understanding and knowledge of WPF. Using this book, readers will learn to build complex and flexible user interfaces using XAML, perform lengthy operations asynchronously while keeping the UI responsive, get well-versed with WPF features such as data binding, layout, resources, templates, and styles and also customize a control’s template to alter appearance but preserve behavior. In the next days I will post my review on this book. In the meantime, here’s the table of contents: Preface Chapter 1: Foundations Chapter 2: Resources Chapter 3: Layout and Panels Chapter 4: Using Standard Controls Chapter 5: Application and Windows Chapter 6: Data Binding Chapter 7: Commands and MVVM Chapter 8: Styles, Triggers, and Control Templates Chapter 9: Graphics and Animation Chapter 10: Custom Elements Chapter 11: Threading Index I’m waiting for your comments!

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  • Announcing: Great Improvements to Windows Azure Web Sites

    - by ScottGu
    I’m excited to announce some great improvements to the Windows Azure Web Sites capability we first introduced earlier this summer.  Today’s improvements include: a new low-cost shared mode scaling option, support for custom domains with shared and reserved mode web-sites using both CNAME and A-Records (the later enabling naked domains), continuous deployment support using both CodePlex and GitHub, and FastCGI extensibility.  All of these improvements are now live in production and available to start using immediately. New “Shared” Scaling Tier Windows Azure allows you to deploy and host up to 10 web-sites in a free, shared/multi-tenant hosting environment. You can start out developing and testing web sites at no cost using this free shared mode, and it supports the ability to run web sites that serve up to 165MB/day of content (5GB/month).  All of the capabilities we introduced in June with this free tier remain the same with today’s update. Starting with today’s release, you can now elastically scale up your web-site beyond this capability using a new low-cost “shared” option (which we are introducing today) as well as using a “reserved instance” option (which we’ve supported since June).  Scaling to either of these modes is easy.  Simply click on the “scale” tab of your web-site within the Windows Azure Portal, choose the scaling option you want to use with it, and then click the “save” button.  Changes take only seconds to apply and do not require any code to be changed, nor the app to be redeployed: Below are some more details on the new “shared” option, as well as the existing “reserved” option: Shared Mode With today’s release we are introducing a new low-cost “shared” scaling mode for Windows Azure Web Sites.  A web-site running in shared mode is deployed in a shared/multi-tenant hosting environment.  Unlike the free tier, though, a web-site in shared mode has no quotas/upper-limit around the amount of bandwidth it can serve.  The first 5 GB/month of bandwidth you serve with a shared web-site is free, and then you pay the standard “pay as you go” Windows Azure outbound bandwidth rate for outbound bandwidth above 5 GB. A web-site running in shared mode also now supports the ability to map multiple custom DNS domain names, using both CNAMEs and A-records, to it.  The new A-record support we are introducing with today’s release provides the ability for you to support “naked domains” with your web-sites (e.g. http://microsoft.com in addition to http://www.microsoft.com).  We will also in the future enable SNI based SSL as a built-in feature with shared mode web-sites (this functionality isn’t supported with today’s release – but will be coming later this year to both the shared and reserved tiers). You pay for a shared mode web-site using the standard “pay as you go” model that we support with other features of Windows Azure (meaning no up-front costs, and you pay only for the hours that the feature is enabled).  A web-site running in shared mode costs only 1.3 cents/hr during the preview (so on average $9.36/month). Reserved Instance Mode In addition to running sites in shared mode, we also support scaling them to run within a reserved instance mode.  When running in reserved instance mode your sites are guaranteed to run isolated within your own Small, Medium or Large VM (meaning no other customers run within it).  You can run any number of web-sites within a VM, and there are no quotas on CPU or memory limits. You can run your sites using either a single reserved instance VM, or scale up to have multiple instances of them (e.g. 2 medium sized VMs, etc).  Scaling up or down is easy – just select the “reserved” instance VM within the “scale” tab of the Windows Azure Portal, choose the VM size you want, the number of instances of it you want to run, and then click save.  Changes take effect in seconds: Unlike shared mode, there is no per-site cost when running in reserved mode.  Instead you pay only for the reserved instance VMs you use – and you can run any number of web-sites you want within them at no extra cost (e.g. you could run a single site within a reserved instance VM or 100 web-sites within it for the same cost).  Reserved instance VMs start at 8 cents/hr for a small reserved VM.  Elastic Scale-up/down Windows Azure Web Sites allows you to scale-up or down your capacity within seconds.  This allows you to deploy a site using the shared mode option to begin with, and then dynamically scale up to the reserved mode option only when you need to – without you having to change any code or redeploy your application. If your site traffic starts to drop off, you can scale back down the number of reserved instances you are using, or scale down to the shared mode tier – all within seconds and without having to change code, redeploy, or adjust DNS mappings.  You can also use the “Dashboard” view within the Windows Azure Portal to easily monitor your site’s load in real-time (it shows not only requests/sec and bandwidth but also stats like CPU and memory usage). Because of Windows Azure’s “pay as you go” pricing model, you only pay for the compute capacity you use in a given hour.  So if your site is running most of the month in shared mode (at 1.3 cents/hr), but there is a weekend when it gets really popular and you decide to scale it up into reserved mode to have it run in your own dedicated VM (at 8 cents/hr), you only have to pay the additional pennies/hr for the hours it is running in the reserved mode.  There is no upfront cost you need to pay to enable this, and once you scale back down to shared mode you return to the 1.3 cents/hr rate.  This makes it super flexible and cost effective. Improved Custom Domain Support Web sites running in either “shared” or “reserved” mode support the ability to associate custom host names to them (e.g. www.mysitename.com).  You can associate multiple custom domains to each Windows Azure Web Site.  With today’s release we are introducing support for A-Records (a big ask by many users). With the A-Record support, you can now associate ‘naked’ domains to your Windows Azure Web Sites – meaning instead of having to use www.mysitename.com you can instead just have mysitename.com (with no sub-name prefix).  Because you can map multiple domains to a single site, you can optionally enable both a www and naked domain for a site (and then use a URL rewrite rule/redirect to avoid SEO problems). We’ve also enhanced the UI for managing custom domains within the Windows Azure Portal as part of today’s release.  Clicking the “Manage Domains” button in the tray at the bottom of the portal now brings up custom UI that makes it easy to manage/configure them: As part of this update we’ve also made it significantly smoother/easier to validate ownership of custom domains, and made it easier to switch existing sites/domains to Windows Azure Web Sites with no downtime. Continuous Deployment Support with Git and CodePlex or GitHub One of the more popular features we released earlier this summer was support for publishing web sites directly to Windows Azure using source control systems like TFS and Git.  This provides a really powerful way to manage your application deployments using source control.  It is really easy to enable this from a website’s dashboard page: The TFS option we shipped earlier this summer provides a very rich continuous deployment solution that enables you to automate builds and run unit tests every time you check in your web-site, and then if they are successful automatically publish to Azure. With today’s release we are expanding our Git support to also enable continuous deployment scenarios and integrate with projects hosted on CodePlex and GitHub.  This support is enabled with all web-sites (including those using the “free” scaling mode). Starting today, when you choose the “Set up Git publishing” link on a website’s “Dashboard” page you’ll see two additional options show up when Git based publishing is enabled for the web-site: You can click on either the “Deploy from my CodePlex project” link or “Deploy from my GitHub project” link to walkthrough a simple workflow to configure a connection between your website and a source repository you host on CodePlex or GitHub.  Once this connection is established, CodePlex or GitHub will automatically notify Windows Azure every time a checkin occurs.  This will then cause Windows Azure to pull the source and compile/deploy the new version of your app automatically.  The below two videos walkthrough how easy this is to enable this workflow and deploy both an initial app and then make a change to it: Enabling Continuous Deployment with Windows Azure Websites and CodePlex (2 minutes) Enabling Continuous Deployment with Windows Azure Websites and GitHub (2 minutes) This approach enables a really clean continuous deployment workflow, and makes it much easier to support a team development environment using Git: Note: today’s release supports establishing connections with public GitHub/CodePlex repositories.  Support for private repositories will be enabled in a few weeks. Support for multiple branches Previously, we only supported deploying from the git ‘master’ branch.  Often, though, developers want to deploy from alternate branches (e.g. a staging or future branch). This is now a supported scenario – both with standalone git based projects, as well as ones linked to CodePlex or GitHub.  This enables a variety of useful scenarios.  For example, you can now have two web-sites - a “live” and “staging” version – both linked to the same repository on CodePlex or GitHub.  You can configure one of the web-sites to always pull whatever is in the master branch, and the other to pull what is in the staging branch.  This enables a really clean way to enable final testing of your site before it goes live. This 1 minute video demonstrates how to configure which branch to use with a web-site. Summary The above features are all now live in production and available to use immediately.  If you don’t already have a Windows Azure account, you can sign-up for a free trial and start using them today.  Visit the Windows Azure Developer Center to learn more about how to build apps with it. We’ll have even more new features and enhancements coming in the weeks ahead – including support for the recent Windows Server 2012 and .NET 4.5 releases (we will enable new web and worker role images with Windows Server 2012 and .NET 4.5 next month).  Keep an eye out on my blog for details as these new features become available. Hope this helps, Scott P.S. In addition to blogging, I am also now using Twitter for quick updates and to share links. Follow me at: twitter.com/scottgu

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  • Copy New Files Only in .NET

    - by psheriff
    Recently I had a client that had a need to copy files from one folder to another. However, there was a process that was running that would dump new files into the original folder every minute or so. So, we needed to be able to copy over all the files one time, then also be able to go back a little later and grab just the new files. After looking into the System.IO namespace, none of the classes within here met my needs exactly. Of course I could build it out of the various File and Directory classes, but then I remembered back to my old DOS days (yes, I am that old!). The XCopy command in DOS (or the command prompt for you pure Windows people) is very powerful. One of the options you can pass to this command is to grab only newer files when copying from one folder to another. So instead of writing a ton of code I decided to simply call the XCopy command using the Process class in .NET. The command I needed to run at the command prompt looked like this: XCopy C:\Original\*.* D:\Backup\*.* /q /d /y What this command does is to copy all files from the Original folder on the C drive to the Backup folder on the D drive. The /q option says to do it quitely without repeating all the file names as it copies them. The /d option says to get any newer files it finds in the Original folder that are not in the Backup folder, or any files that have a newer date/time stamp. The /y option will automatically overwrite any existing files without prompting the user to press the "Y" key to overwrite the file. To translate this into code that we can call from our .NET programs, you can write the CopyFiles method presented below. C# using System.Diagnostics public void CopyFiles(string source, string destination){  ProcessStartInfo si = new ProcessStartInfo();  string args = @"{0}\*.* {1}\*.* /q /d /y";   args = string.Format(args, source, destination);   si.FileName = "xcopy";  si.Arguments = args;  Process.Start(si);} VB.NET Imports System.Diagnostics Public Sub CopyFiles(source As String, destination As String)  Dim si As New ProcessStartInfo()  Dim args As String = "{0}\*.* {1}\*.* /q /d /y"   args = String.Format(args, source, destination)   si.FileName = "xcopy"  si.Arguments = args  Process.Start(si)End Sub The CopyFiles method first creates a ProcessStartInfo object. This object is where you fill in name of the command you wish to run and also the arguments that you wish to pass to the command. I created a string with the arguments then filled in the source and destination folders using the string.Format() method. Finally you call the Start method of the Process class passing in the ProcessStartInfo object. That's all there is to calling any command in the operating system. Very simple, and much less code than it would have taken had I coded it using the various File and Directory classes. Good Luck with your Coding,Paul Sheriff ** SPECIAL OFFER FOR MY BLOG READERS **Visit http://www.pdsa.com/Event/Blog for a free video on Silverlight entitled Silverlight XAML for the Complete Novice - Part 1.  

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  • My Latest Books &ndash; Professional C# 2010 and Professional ASP.NET 4

    - by Bill Evjen
    My two latest books are out! Professional ASP.NET 4 in C# and VB Professional C# 4 and .NET 4 From the back covers: Take your web development to the next level using ASP.NET 4 ASP.NET is about making you as productive as possible when building fast and secure web applications. Each release of ASP.NET gets better and removes a lot of the tedious code that you previously needed to put in place, making common ASP.NET tasks easier. With this book, an unparalleled team of authors walks you through the full breadth of ASP.NET and the new and exciting capabilities of ASP.NET 4. The authors also show you how to maximize the abundance of features that ASP.NET offers to make your development process smoother and more efficient. Professional ASP.NET 4: Demonstrates ASP.NET built-in systems such as the membership and role management systems Covers everything you need to know about working with and manipulating data Discusses the plethora of server controls that are at your disposal Explores new ways to build ASP.NET, such as working with ASP.NET MVC and ASP.NET AJAX Examines the full life cycle of ASP.NET, including debugging and error handling, HTTP modules, the provider model, and more Features both printed and downloadable C# and VB code examples Start using the new features of C# 4 and .NET 4 right away The new C# 4 language version is indispensable for writing code in Visual Studio 2010. This essential guide emphasizes that C# is the language of choice for your .NET 4 applications. The unparalleled author team of experts begins with a refresher of C# basics and quickly moves on to provide detailed coverage of all the recently added language and Framework features so that you can start writing Windows applications and ASP.NET web applications immediately. Reviews the .NET architecture, objects, generics, inheritance, arrays, operators, casts, delegates, events, Lambda expressions, and more Details integration with dynamic objects in C#, named and optional parameters, COM-specific interop features, and type-safe variance Provides coverage of new features of .NET 4, Workflow Foundation 4, ADO.NET Data Services, MEF, the Parallel Task Library, and PLINQ Has deep coverage of great technologies including LINQ, WCF, WPF, flow and fixed documents, and Silverlight Reviews ASP.NET programming and goes into new features such as ASP.NET MVC and ASP.NET Dynamic Data Discusses communication with WCF, MSMQ, peer-to-peer, and syndication

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  • Creating a SQL Azure Database Should be Easier

    - by Ken Cox [MVP]
    Every time I try to create a database + tables + data for Windows Azure SQL I get errors.  One of them is 'Filegroup reference and partitioning scheme' is not supported in this version of SQL Server.' It’s partly due to my poor memory (since I’ve succeeded before) and partly due to the failure of tools that should be helping me. For example, when I want to create a script from an existing database on my local workstation, I use SQL Server Management Studio (currently v 11.0.2100.60).  I go to Tasks > Generate Scripts which brings up the nice Generate and Publish Scripts wizard. When I go into the Advanced button, under Script for Server Version, why don’t I see SQL Azure as an option by now? The tool should be sorting this out for me, right? Maybe this is available in SQL Server Data Tools? I haven’t got into that yet. Just merge the functionality with SSMS, please. Anyway, I pick an older version of SQL for the target and still need to tweak it for Azure. For example, I take out all the “[dbo].” stuff. Why is it put there by the wizard? I also have to get rid of "ON [PRIMARY]"  to deal with the error I noted at the top. Yes, there’s information on what a table needs to look like in SQL Azure but the tools should know this so I don’t have to mess with it.

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  • OpenXML error “file is corrupt and cannot be opened.”

    - by nmgomes
    From time to time I ear some people saying their new web application supports data export to Excel format. So far so good … but they don’t tell the all story … in fact almost all the times what is happening is they are exporting data to a Comma-Separated file or simply exporting GridView rendered HTML to an xls file. Ok … it works but it’s not something I would be proud of. So … yesterday I decided to take a look at the Office Open XML File Formats Specification (Microsoft Office 2007+ format) based on well-known technologies: ZIP and XML. I start by installing Open XML SDK 2.0 for Microsoft Office and playing with some samples. Then I decided to try it on a more complex web application and the “file is corrupt and cannot be opened.” message start happening. Google show us that many people suffer from the same and it seems there are many reasons that can trigger this message. Some are related to the process itself, others with encodings or even styling. Well, none solved my problem and I had to dig … well not that much, I simply change the output file extension to zip and extract the zip content. Then I did the same to the output file from my first sample, compare both zip contents with SourceGear DiffMerge and found that my problem was Culture related. Yes, my complex application sets the Thread.CurrentThread.CurrentCulture  to a non-English culture. For sample purposes I was simply using the ToString method to convert numbers and dates to a string representation but forgot that XML is culture invariant and thus using a decimal separator other than “.” will result in a deserialization problem. I solve the “file is corrupt and cannot be opened.” by using Convert.ToString(object, CultureInfo.InvariantCulture) method instead of the ToString method. Hope this can help someone.

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  • ApplyCurrentValues in EF 4

    - by ali62b
    I just was playing with EF 4 in VS 2010 RC and just found that ApplyCurrentValues dont work when the Property is of type bool and the newly value is false !!!??? and it works when the newly value is true . I dont know if this is a bug or I'm missing something but I just work with a very ugly work around : public void UpdateProduct(Product updatedProduct) { using (model) { model.Products.Attach(new Product { ProductID = updatedProduct.ProductID }); model.Products.ApplyCurrentValues(updatedProduct); Product originalProduct = model.Products.Single(p => p.ProductID == updatedProduct.ProductID); originalProduct.Discontinued = updatedProduct.Discontinued; model.SaveChanges(); } } any idea or better work around?

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  • Entity Framework - Condition on one to many join (Lambda)

    - by nirpi
    Hi, I have 2 entities: Customer & Account, where a customer can have multiple accounts. On the account, I have a "PlatformTypeId" field, which I need to condition on (multiple values), among other criterions. I'm using Lambda expressions, to build the query. Here's a snippet: var customerQuery = (from c in context.CustomerSet.Include("Accounts") select c); if (criterions.UserTypes != null && criterions.UserTypes.Count() > 0) { List<short> searchCriterionsUserTypes = criterions.UserTypes.Select(i => (short)i).ToList(); customerQuery = customerQuery.Where(CommonDataObjects.LinqTools.BuildContainsExpression<Customer, short>(c => c.UserTypeId, searchCriterionsUserTypes)); } // Other criterions, including the problematic platforms condition (below) var customers = customerQuery.ToList(); I can't figure out how to build the accounts' platforms condition: if (criterions.Platforms != null && criterions.Platforms.Count() > 0) { List<short> searchCriterionsPlatforms = criterions.Platforms.Select(i => (short)i).ToList(); customerQuery = customerQuery.Where(c => c.Accounts.Where(LinqTools.BuildContainsExpression<Account, short>(a => a.PlatformTypeId, searchCriterionsPlatforms))); } (The BuildContainsExpression is a method we use to build the expression for the multi-select) I'm getting a compilation error: The type arguments for method 'System.Linq.Enumerable.Where(System.Collections.Generic.IEnumerable, System.Func)' cannot be inferred from the usage. Try specifying the type arguments explicitly. Any idea how to fix this? Thanks, Nir.

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  • Entity Framework: Delete Object and its related entities

    - by Waheed
    Hi, Does anyone know how to delete an object and all of it's related entities. For example i have tables, Products, Category, ProductCategory and productDetails, the productCategory is joining table of both Product and Category. I have red from http://msdn.microsoft.com/en-us/library/bb738580.aspx that Deleting the parent object also deletes all the child objects in the constrained relationship. This result is the same as enabling the CascadeDelete property on the association for the relationship. I am using this code Product productObj = this.ObjectContext.Product.Where(p => p.ProductID.Equals(productID)).First(); if (!productObj.ProductCategory.IsLoaded) productObj.ProductCategory.Load(); if (!productObj.ProductDetails.IsLoaded) productObj.ProductDetails.Load(); //my own methods. base.Delete(productObj); base.SaveAllObjectChanges(); But i am getting error on ObjectContext.SaveChanges(); i.e A relationship is being added or deleted from an AssociationSet 'FK_ProductCategory_Product'. With cardinality constraints, a corresponding 'ProductCategory' must also be added or deleted. Thanks in advance....

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  • Entity Framework - ContextBuilder namespace

    - by Matt
    I apologize if this seems like an excessively dumb question. I am trying to use the ContextBuilderClass to generate my Context. I am unable to find the proper assembly and namespace to use it though. Just for reference I am on a full install of VS 2010 Pro.

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  • Installing .NET 3.5 SP1 on server broke WCF

    - by Doron
    I installed .NET 3.5 SP1 on server which previously had .NET 3.0 SP2. Before install site was working perfectly. After install and subsequeny server restart, site displays but anything that makes use of the WCF service has stopped working. The exception log reports exceptions like the following when any calls are made to the client proxy: The communication object, System.ServiceModel.Channels.ServiceChannel, cannot be used for communication because it is in the Faulted state. The server's application event log gave the following errors after the install: Configuration section system.serviceModel.activation already exists in c:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Config\machine.config. Configuration section system.runtime.serialization already exists in c:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Config\machine.config. Configuration section system.serviceModel already exists in c:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Config\machine.config. which seems to be inline with the fact that anything WCF related has stopped working. I am not experienced in server configurations or WCF so looking for any assistance with this. Thanks!! From machine.config: <sectionGroup name="system.serviceModel" type="System.ServiceModel.Configuration.ServiceModelSectionGroup, System.ServiceModel, Version=3.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"> <section name="behaviors" type="System.ServiceModel.Configuration.BehaviorsSection, System.ServiceModel, Version=3.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"/> <section name="bindings" type="System.ServiceModel.Configuration.BindingsSection, System.ServiceModel, Version=3.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"/> <section name="client" type="System.ServiceModel.Configuration.ClientSection, System.ServiceModel, Version=3.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"/> <section name="comContracts" type="System.ServiceModel.Configuration.ComContractsSection, System.ServiceModel, Version=3.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"/> <section name="commonBehaviors" type="System.ServiceModel.Configuration.CommonBehaviorsSection, System.ServiceModel, Version=3.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" allowDefinition="MachineOnly" allowExeDefinition="MachineOnly"/> <section name="diagnostics" type="System.ServiceModel.Configuration.DiagnosticSection, System.ServiceModel, Version=3.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"/> <section name="extensions" type="System.ServiceModel.Configuration.ExtensionsSection, System.ServiceModel, Version=3.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"/> <section name="machineSettings" type="System.ServiceModel.Configuration.MachineSettingsSection, SMDiagnostics, Version=3.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" allowDefinition="MachineOnly" allowExeDefinition="MachineOnly"/> <section name="serviceHostingEnvironment" type="System.ServiceModel.Configuration.ServiceHostingEnvironmentSection, System.ServiceModel, Version=3.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"/> <section name="services" type="System.ServiceModel.Configuration.ServicesSection, System.ServiceModel, Version=3.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"/> </sectionGroup> <sectionGroup name="system.serviceModel.activation" type="System.ServiceModel.Activation.Configuration.ServiceModelActivationSectionGroup, System.ServiceModel, Version=3.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"> <section name="diagnostics" type="System.ServiceModel.Activation.Configuration.DiagnosticSection, System.ServiceModel, Version=3.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"/> <section name="net.pipe" type="System.ServiceModel.Activation.Configuration.NetPipeSection, System.ServiceModel, Version=3.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"/> <section name="net.tcp" type="System.ServiceModel.Activation.Configuration.NetTcpSection, System.ServiceModel, Version=3.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"/> </sectionGroup> <sectionGroup name="system.runtime.serialization" type="System.Runtime.Serialization.Configuration.SerializationSectionGroup, System.Runtime.Serialization, Version=3.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"> <section name="dataContractSerializer" type="System.Runtime.Serialization.Configuration.DataContractSerializerSection, System.Runtime.Serialization, Version=3.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"/> </sectionGroup> from site's web.config <sectionGroup name="system.web.extensions" type="System.Web.Configuration.SystemWebExtensionsSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"> <sectionGroup name="scripting" type="System.Web.Configuration.ScriptingSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"> <section name="scriptResourceHandler" type="System.Web.Configuration.ScriptingScriptResourceHandlerSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication" /> <sectionGroup name="webServices" type="System.Web.Configuration.ScriptingWebServicesSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"> <section name="jsonSerialization" type="System.Web.Configuration.ScriptingJsonSerializationSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="Everywhere" /> <section name="profileService" type="System.Web.Configuration.ScriptingProfileServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication" /> <section name="authenticationService" type="System.Web.Configuration.ScriptingAuthenticationServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication" /> <section name="roleService" type="System.Web.Configuration.ScriptingRoleServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication" /> </sectionGroup> </sectionGroup> </sectionGroup> . . . <system.serviceModel> <bindings> <wsHttpBinding> <binding name="WSHttpBinding_IService" closeTimeout="00:03:00" openTimeout="00:03:00" receiveTimeout="00:10:00" sendTimeout="00:03:00" bypassProxyOnLocal="false" transactionFlow="false" hostNameComparisonMode="StrongWildcard" maxBufferPoolSize="524288" maxReceivedMessageSize="131072" messageEncoding="Text" textEncoding="utf-8" useDefaultWebProxy="true" allowCookies="false"> <readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384" maxBytesPerRead="4096" maxNameTableCharCount="16384" /> <reliableSession ordered="true" inactivityTimeout="00:10:00" enabled="false" /> <security mode="Message"> <transport clientCredentialType="Windows" proxyCredentialType="None" realm="" /> <message clientCredentialType="Windows" negotiateServiceCredential="true" algorithmSuite="Default" establishSecurityContext="true" /> </security> </binding> </wsHttpBinding> </bindings> <client> <endpoint address="some address" binding="wsHttpBinding" bindingConfiguration="WSHttpBinding_IService" contract="some contact" name="WSHttpBinding_IService" /> </client> Pertinant Exception Section: Exception information: Exception type: TypeLoadException Exception message: Could not load type 'System.Web.UI.ScriptReferenceBase' from assembly 'System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'.

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  • ASP.NET MVC Class level custom data-annotation and ModelState keys

    - by Neil
    Hi, I have custom class level validation attribute, inheriting from ValidationAttribute, on my model. How come it doesn't register a key in the ModelState when its IsValid is false? I can see the the error message in the ModelState.Values collection, but the ModelState.Keys collection only shows an empty string "". Can I provide a key for it - presumably this is because its not assigned to a property? I wanna be able to use ModelState.Remove in my controller to remove this error upon a certain condition, but I have no Key! Any ideas?

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  • Naming of ASP.NET controls inside User Controls with ASP.NET MVC

    - by skb
    I am wondering if there is a way to make ASP.NET controls play nicely with my ASP.NET MVC app. Here is what I am doing. I have an order page which displays info about a single Order object. The page will normally have a bunch of rows of data, each row representing an OrderItem object. Each row is an ASP.NET User Control. On the user control there is a form element with two text boxes (Quantity and Price), and an update button. When I click the update button, I expect the form to post the data for that individual OrderItem row to a controller method and update the OrderItem record in the database. Here is my problem: When the post happens, the framework complains because the fields on the form don't match the parameters on the controller method. Each form field is something like "OrderItem_1$Quantity" or "OrderItem_2$Price" instead of just "Quantity" or "Price" which would match my method parameters. I have been told that I can overcome this by making sure that the IDs of all my controls are unique for the page, but allow the NAMEs to be repeated between different forms, so that if a form for an individual row is posted, the name can be something that will match what is on my controller method. The only problem is that I am using ASP.NET controls for my text boxes (which I REALLY want to continue doing) and I can't find any way to override the name field. There is no Name propery on an ASP.NET control, and even when I try to set it using the Attributes accessor property by saying "control.Attributes["Name"] = "Price";" it just adds another name= attribute to the HTML tag which doesn't work. Does any one know how I can make this work? I really don't like all of the HtmlHelper functions like TextBox and DropDown because I hate having my .aspx be so PHP or ASP like with the <%% tags and everything. Thanks!

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  • Cannot rollback ransaction with Entity Framework

    - by Luca
    I have to do queries on uncommitted changes and I tried to use transactions, but I found that it do not work if there are exceptions. I made a simple example to reproduce the problem. I have a database with only one table called "Tabella" and the table has two fields: "ID" is a autogenerated integer, and "Valore" is an integer with a Unique constraint. Then I try to run this code: using (TransactionScope scope = new TransactionScope()) { Db1Container db1 = new Db1Container(); try { db1.AddToTabella(new Tabella() { Valore = 1 }); db1.SaveChanges(); } catch { } try { db1.AddToTabella(new Tabella() { Valore = 1 }); db1.SaveChanges(); //Unique constraint is violated here and an exception is thrown } catch { } try { db1.AddToTabella(new Tabella() { Valore = 2 }); db1.SaveChanges(); } catch { } //scope.Complete(); //NEVER called } //here everything should be rolled back Now if I look into the database it should contain no records because the transaction should rollback, instead I find two records!!!! One with Valore=1 and one with Valore=2. I am missing something? It looks like the second call to SaveChanges method rollback its own changes and "deletes" the transaction, then the third call to SaveChanges commits the changes of the first and the third insert (at this point it is like the transaction not exists). I also tried to use SaveChanges(false) method (even without calling AcceptAllChanges method), but with no success: I have the same behaviour. I do not want the transaction to be rolled back automatically by SaveChanges, because I want to correct the errors (for example by user interaction in the catch statement) and make a retry. Can someone help me with this? It seems like a "bug", and it is giving me a really big headache...

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  • How to pass data between pages without sessions in ASP.net MVC

    - by Ashwani K
    Hello All: I have one application in which I want to pass data between Pages (Views) without sessions. Actually I want to apply some settings to all the pages using query string. For example if my link is like "http://example.com?data=test1", then I want to append this query string to all the link there after and if there is no query string then normal flow. I was thinking if there is any way that if we get the query string in any link for the web application then some application level user specific property can be set which can be used for subsequent pages. Thanks, Ashwani

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  • Entity Framework without Transaction?

    - by Sue
    Is there a way to use EF without transaction? I have very simple single insert and don't want to roll-back when something goes wrong as there may be a trigger logging then raising error from the DB side which I have no control over. I just want to insert then catch any exceptions but don't want to roll-back.

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  • Example of an ASP.NET MVC post model?

    - by Anthony Potts
    I was watching the HaHaa presentation on ASP.NET MVC from MIX and they mentioned using a Post Model where I guess they were saying you could use a model that was ONLY for posting. I have tried looking for examples for this. Am I not understanding what they are saying? Does anyone have an example of how this might work in a strongly typed view where the view model and post model are not of the same type?

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  • problem with sqldatasource and data binding

    - by Alexander
    I am trying to pull out data from the table I had from the database according to the id which is passed from the URL. However I always get data from id= 1? Why? FYI I took this code directly from the ClubWebsite starter kit and copy and paste it to my project to make several changes, the ClubWebsite one worked fine.. but this one doesn't and can't find any reason why because they both looked exactly the same. <%@ Page Title="" Language="C#" MasterPageFile="~/MasterPage.master" AutoEventWireup="true" CodeFile="Events_View.aspx.cs" Inherits="Events_View" %> <asp:Content ID="Content1" ContentPlaceHolderID="head" Runat="Server"> </asp:Content> <asp:Content ID="Content2" ContentPlaceHolderID="splash" Runat="Server"> <div id="splash4">&nbsp;</div> </asp:Content> <asp:Content ID="Content3" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server"> <div id="content"> <div class="post"> <asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:ClubDatabase %>" SelectCommand="SELECT dbo.Events.id, dbo.Events.starttime, dbo.events.endtime, dbo.Events.title, dbo.Events.description, dbo.Events.staticURL, dbo.Events.address FROM dbo.Events"> <SelectParameters> <asp:Parameter Type="Int32" DefaultValue="1" Name="id"></asp:Parameter> </SelectParameters> </asp:SqlDataSource> <asp:FormView ID="FormView1" runat="server" DataSourceID="SqlDataSource1" DataKeyNames="id" AllowPaging="false" Width="100%"> <ItemTemplate> <h2> <asp:Label Text='<%# Eval("title") %>' runat="server" ID="titleLabel" /> </h2> <div> <br /> <p> <asp:Label Text='<%# Eval("address") %>' runat="server" ID="addressLabel" /> </p> <p> <asp:Label Text='<%# Eval("starttime","{0:D}") %>' runat="server" ID="itemdateLabel" /> <br /> <asp:Label Text='<%# ShowDuration(Eval("starttime"),Eval("endtime")) %>' runat="server" ID="Label1" /> </p> </div> <p> <asp:Label Text='<%# Eval("description") %>' runat="server" ID="descriptionLabel" /> </p> </ItemTemplate> </asp:FormView> <div class="dashedline"> </div> </div> </div> </asp:Content> using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; using System.Data.SqlClient; using System.Configuration; using System.Data; public partial class Events_View : System.Web.UI.Page { const int INVALIDID = -1; protected void Page_Load(object sender, System.EventArgs e) { SqlDataSource1.SelectParameters["id"].DefaultValue = System.Convert.ToString(EventID); } public int EventID { get { int m_EventID; object id = ViewState["EventID"]; if (id != null) { m_EventID = (int)id; } else { id = Request.QueryString["EventID"]; if (id != null) { m_EventID = System.Convert.ToInt32(id); } else { m_EventID = 1; } ViewState["EventID"] = m_EventID; } return m_EventID; } set { ViewState["EventID"] = value; } } protected void FormView1_DataBound(object sender, System.EventArgs e) { DataRowView view = (DataRowView)(FormView1.DataItem); object o = view["staticURL"]; if (o != null && o != DBNull.Value) { string staticurl = (string)o; if (staticurl != "") { Response.Redirect(staticurl); } } } protected string ShowLocationLink(object locationname, object id) { if (id != null && id != DBNull.Value) { return "At <a href='Locations_view.aspx?LocationID=" + Convert.ToString(id) + "'>" + (string)locationname + "</a><br/>"; } else { return ""; } } protected string ShowDuration(object starttime, object endtime) { DateTime starttimeDT = (DateTime)starttime; if (endtime != null && endtime != DBNull.Value) { DateTime endtimeDT = (DateTime)endtime; if (starttimeDT.Date == endtimeDT.Date) { if (starttimeDT == endtimeDT) { return starttimeDT.ToString("h:mm tt"); } else { return starttimeDT.ToString("h:mm tt") + " - " + endtimeDT.ToString("h:mm tt"); } } else { return "thru " + endtimeDT.ToString("M/d/yy"); } } else { return starttimeDT.ToString("h:mm tt"); } } }

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  • Accessing the relationship of a relationship with Entity Framework

    - by J. Pablo Fernández
    I the School class I have this code: from student in this.Students where student.Teacher.Id == id select student The Student class there are two relationships: Teacher and School. In the School class I'm trying to find out all the students whose Teacher has a given id. The problem is that I get System.NullReferenceException: Object reference not set to an instance of an object. in the statement student.Teacher.Id I thought of doing this.Students.Include("Teacher"), but this.Students doesn't have such a method. Any ideas how can I perform that query?

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