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• Announcing the release of the Windows Azure SDK 2.1 for .NET

  - by ScottGu

  Today we released the v2.1 update of the Windows Azure SDK for .NET.  This is a major refresh of the Windows Azure SDK and it includes some great new features and enhancements. These new capabilities include: Visual Studio 2013 Preview Support: The Windows Azure SDK now supports using the new VS 2013 Preview Visual Studio 2013 VM Image: Windows Azure now has a built-in VM image that you can use to host and develop with VS 2013 in the cloud Visual Studio Server Explorer Enhancements: Redesigned with improved filtering and auto-loading of subscription resources Virtual Machines: Start and Stop VM’s w/suspend billing directly from within Visual Studio Cloud Services: New Emulator Express option with reduced footprint and Run as Normal User support Service Bus: New high availability options, Notification Hub support, Improved VS tooling PowerShell Automation: Lots of new PowerShell commands for automating Web Sites, Cloud Services, VMs and more All of these SDK enhancements are now available to start using immediately and you can download the SDK from the Windows Azure .NET Developer Center.  Visual Studio’s Team Foundation Service (http://tfs.visualstudio.com/) has also been updated to support today’s SDK 2.1 release, and the SDK 2.1 features can now be used with it (including with automated builds + tests). Below are more details on the new features and capabilities released today: Visual Studio 2013 Preview Support Today’s Window Azure SDK 2.1 release adds support for the recent Visual Studio 2013 Preview. The 2.1 SDK also works with Visual Studio 2010 and Visual Studio 2012, and works side by side with the previous Windows Azure SDK 1.8 and 2.0 releases. To install the Windows Azure SDK 2.1 on your local computer, choose the “install the sdk” link from the Windows Azure .NET Developer Center. Then, chose which version of Visual Studio you want to use it with.  Clicking the third link will install the SDK with the latest VS 2013 Preview: If you don’t already have the Visual Studio 2013 Preview installed on your machine, this will also install Visual Studio Express 2013 Preview for Web. Visual Studio 2013 VM Image Hosted in the Cloud One of the requests we’ve heard from several customers has been to have the ability to host Visual Studio within the cloud (avoiding the need to install anything locally on your computer). With today’s SDK update we’ve added a new VM image to the Windows Azure VM Gallery that has Visual Studio Ultimate 2013 Preview, SharePoint 2013, SQL Server 2012 Express and the Windows Azure 2.1 SDK already installed on it.  This provides a really easy way to create a development environment in the cloud with the latest tools. With the recent shutdown and suspend billing feature we shipped on Windows Azure last month, you can spin up the image only when you want to do active development, and then shut down the virtual machine and not have to worry about usage charges while the virtual machine is not in use. You can create your own VS image in the cloud by using the New->Compute->Virtual Machine->From Gallery menu within the Windows Azure Management Portal, and then by selecting the “Visual Studio Ultimate 2013 Preview” template: Visual Studio Server Explorer: Improved Filtering/Management of Subscription Resources With the Windows Azure SDK 2.1 release you’ll notice significant improvements in the Visual Studio Server Explorer. The explorer has been redesigned so that all Windows Azure services are now contained under a single Windows Azure node.  From the top level node you can now manage your Windows Azure credentials, import a subscription file or filter Server Explorer to only show services from particular subscriptions or regions. Note: The Web Sites and Mobile Services nodes will appear outside the Windows Azure Node until the final release of VS 2013. If you have installed the ASP.NET and Web Tools Preview Refresh, though, the Web Sites node will appear inside the Windows Azure node even with the VS 2013 Preview. Once your subscription information is added, Windows Azure services from all your subscriptions are automatically enumerated in the Server Explorer. You no longer need to manually add services to Server Explorer individually. This provides a convenient way of viewing all of your cloud services, storage accounts, service bus namespaces, virtual machines, and web sites from one location: Subscription and Region Filtering Support Using the Windows Azure node in Server Explorer, you can also now filter your Windows Azure services in the Server Explorer by the subscription or region they are in.  If you have multiple subscriptions but need to focus your attention to just a few subscription for some period of time, this a handy way to hide the services from other subscriptions view until they become relevant. You can do the same sort of filtering by region. To enable this, just select “Filter Services” from the context menu on the Windows Azure node: Then choose the subscriptions and/or regions you want to filter by. In the below example, I’ve decided to show services from my pay-as-you-go subscription within the East US region: Visual Studio will then automatically filter the items that show up in the Server Explorer appropriately: With storage accounts and service bus namespaces, you sometimes need to work with services outside your subscription. To accommodate that scenario, those services allow you to attach an external account (from the context menu). You’ll notice that external accounts have a slightly different icon in server explorer to indicate they are from outside your subscription. Other Improvements We’ve also improved the Server Explorer by adding additional properties and actions to the service exposed. You now have access to most of the properties on a cloud service, deployment slot, role or role instance as well as the properties on storage accounts, virtual machines and web sites. Just select the object of interest in Server Explorer and view the properties in the property pane. We also now have full support for creating/deleting/update storage tables, blobs and queues from directly within Server Explorer.  Simply right-click on the appropriate storage account node and you can create them directly within Visual Studio: Virtual Machines: Start/Stop within Visual Studio Virtual Machines now have context menu actions that allow you start, shutdown, restart and delete a Virtual Machine directly within the Visual Studio Server Explorer. The shutdown action enables you to shut down the virtual machine and suspend billing when the VM is not is use, and easily restart it when you need it: This is especially useful in Dev/Test scenarios where you can start a VM – such as a SQL Server – during your development session and then shut it down / suspend billing when you are not developing (and no longer be billed for it). You can also now directly remote desktop into VMs using the “Connect using Remote Desktop” context menu command in VS Server Explorer.  Cloud Services: Emulator Express with Run as Normal User Support You can now launch Visual Studio and run your cloud services locally as a Normal User (without having to elevate to an administrator account) using a new Emulator Express option included as a preview feature with this SDK release.  Emulator Express is a version of the Windows Azure Compute Emulator that runs a restricted mode – one instance per role – and it doesn’t require administrative permissions and uses 40% less resources than the full Windows Azure Emulator. Emulator Express supports both web and worker roles. To run your application locally using the Emulator Express option, simply change the following settings in the Windows Azure project. On the shortcut menu for the Windows Azure project, choose Properties, and then choose the Web tab. Check the setting for IIS (Internet Information Services). Make sure that the option is set to IIS Express, not the full version of IIS. Emulator Express is not compatible with full IIS. On the Web tab, choose the option for Emulator Express. Service Bus: Notification Hubs With the Windows Azure SDK 2.1 release we are adding support for Windows Azure Notification Hubs as part of our official Windows Azure SDK, inside of Microsoft.ServiceBus.dll (previously the Notification Hub functionality was in a preview assembly). You are now able to create, update and delete Notification Hubs programmatically, manage your device registrations, and send push notifications to all your mobile clients across all platforms (Windows Store, Windows Phone 8, iOS, and Android). Learn more about Notification Hubs on MSDN here, or watch the Notification Hubs //BUILD/ presentation here. Service Bus: Paired Namespaces One of the new features included with today’s Windows Azure SDK 2.1 release is support for Service Bus “Paired Namespaces”.  Paired Namespaces enable you to better handle situations where a Service Bus service namespace becomes unavailable (for example: due to connectivity issues or an outage) and you are unable to send or receive messages to the namespace hosting the queue, topic, or subscription. Previously,to handle this scenario you had to manually setup separate namespaces that can act as a backup, then implement manual failover and retry logic which was sometimes tricky to get right. Service Bus now supports Paired Namespaces, which enables you to connect two namespaces together. When you activate the secondary namespace, messages are stored in the secondary queue for delivery to the primary queue at a later time. If the primary container (namespace) becomes unavailable for some reason, automatic failover enables the messages in the secondary queue. For detailed information about paired namespaces and high availability, see the new topic Asynchronous Messaging Patterns and High Availability. Service Bus: Tooling Improvements In this release, the Windows Azure Tools for Visual Studio contain several enhancements and changes to the management of Service Bus messaging entities using Visual Studio’s Server Explorer. The most noticeable change is that the Service Bus node is now integrated into the Windows Azure node, and supports integrated subscription management. Additionally, there has been a change to the code generated by the Windows Azure Worker Role with Service Bus Queue project template. This code now uses an event-driven “message pump” programming model using the QueueClient.OnMessage method. PowerShell: Tons of New Automation Commands Since my last blog post on the previous Windows Azure SDK 2.0 release, we’ve updated Windows Azure PowerShell (which is a separate download) five times. You can find the full change log here. We’ve added new cmdlets in the following areas: China instance and Windows Azure Pack support Environment Configuration VMs Cloud Services Web Sites Storage SQL Azure Service Bus China Instance and Windows Azure Pack We now support the following cmdlets for the China instance and Windows Azure Pack, respectively: China Instance: Web Sites, Service Bus, Storage, Cloud Service, VMs, Network Windows Azure Pack: Web Sites, Service Bus We will have full cmdlet support for these two Windows Azure environments in PowerShell in the near future. Virtual Machines: Stop/Start Virtual Machines Similar to the Start/Stop VM capability in VS Server Explorer, you can now stop your VM and suspend billing: If you want to keep the original behavior of keeping your stopped VM provisioned, you can pass in the -StayProvisioned switch parameter. Virtual Machines: VM endpoint ACLs We’ve added and updated a bunch of cmdlets for you to configure fine-grained network ACL on your VM endpoints. You can use the following cmdlets to create ACL config and apply them to a VM endpoint: New-AzureAclConfig Get-AzureAclConfig Set-AzureAclConfig Remove-AzureAclConfig Add-AzureEndpoint -ACL Set-AzureEndpoint –ACL The following example shows how to add an ACL rule to an existing endpoint of a VM. Other improvements for Virtual Machine management includes Added -NoWinRMEndpoint parameter to New-AzureQuickVM and Add-AzureProvisioningConfig to disable Windows Remote Management Added -DirectServerReturn parameter to Add-AzureEndpoint and Set-AzureEndpoint to enable/disable direct server return Added Set-AzureLoadBalancedEndpoint cmdlet to modify load balanced endpoints Cloud Services: Remote Desktop and Diagnostics Remote Desktop and Diagnostics are popular debugging options for Cloud Services. We’ve introduced cmdlets to help you configure these two Cloud Service extensions from Windows Azure PowerShell. Windows Azure Cloud Services Remote Desktop extension: New-AzureServiceRemoteDesktopExtensionConfig Get-AzureServiceRemoteDesktopExtension Set-AzureServiceRemoteDesktopExtension Remove-AzureServiceRemoteDesktopExtension Windows Azure Cloud Services Diagnostics extension New-AzureServiceDiagnosticsExtensionConfig Get-AzureServiceDiagnosticsExtension Set-AzureServiceDiagnosticsExtension Remove-AzureServiceDiagnosticsExtension The following example shows how to enable Remote Desktop for a Cloud Service. Web Sites: Diagnostics With our last SDK update, we introduced the Get-AzureWebsiteLog –Tail cmdlet to get the log streaming of your Web Sites. Recently, we’ve also added cmdlets to configure Web Site application diagnostics: Enable-AzureWebsiteApplicationDiagnostic Disable-AzureWebsiteApplicationDiagnostic The following 2 examples show how to enable application diagnostics to the file system and a Windows Azure Storage Table: SQL Database Previously, you had to know the SQL Database server admin username and password if you want to manage the database in that SQL Database server. Recently, we’ve made the experience much easier by not requiring the admin credential if the database server is in your subscription. So you can simply specify the -ServerName parameter to tell Windows Azure PowerShell which server you want to use for the following cmdlets. Get-AzureSqlDatabase New-AzureSqlDatabase Remove-AzureSqlDatabase Set-AzureSqlDatabase We’ve also added a -AllowAllAzureServices parameter to New-AzureSqlDatabaseServerFirewallRule so that you can easily add a firewall rule to whitelist all Windows Azure IP addresses. Besides the above experience improvements, we’ve also added cmdlets get the database server quota and set the database service objective. Check out the following cmdlets for details. Get-AzureSqlDatabaseServerQuota Get-AzureSqlDatabaseServiceObjective Set-AzureSqlDatabase –ServiceObjective Storage and Service Bus Other new cmdlets include Storage: CRUD cmdlets for Azure Tables and Queues Service Bus: Cmdlets for managing authorization rules on your Service Bus Namespace, Queue, Topic, Relay and NotificationHub Summary Today’s release includes a bunch of great features that enable you to build even better cloud solutions.  All the above features/enhancements are shipped and available to use immediately as part of the 2.1 release of the Windows Azure SDK for .NET. If you don’t already have a Windows Azure account, you can sign-up for a free trial and start using all of the above features today.  Then visit the Windows Azure Developer Center to learn more about how to build apps with it. 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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• Interview questions about ASP.NET Web services.

  - by Jalpesh P. Vadgama

  I have seen there are lots of myth’s about asp.net web services in fresher level asp.net developers. So I decided to write a blog post about asp.net web services interview questions. Because I think this is the best way to reach fresher asp.net developers. Followings are few questions about asp.net web services. 1) What is asp.net web services? Ans: Web services are used to support http requests that formatted using xml,http and SOAP syntax. They interact with through standards xml messages through Soap. They are used to support interoperability. It has .asmx extension and .NET framework contains http handlers for web services to support http requested directly. 2) What kind of data can be returned web services web methods? Ans: It supports all the primitive data types and custom data types that can be encoded and serialized by xml. You can find more information about that from the following link. http://msdn.microsoft.com/en-us/library/bb552900.aspx 3) Is web services are only written in asp.net? Ans: No, It can be written by Java and PHP languages also. 4) Explain web method attributes in web services Ans: Web method attributes are added to a public class method to indicate that this method is exposed as a part of XML web services. You can have multiple web methods in a class. But it should be having public attributes as it will be exposed as xml web service part. You can find more information about web method attributes from following link. http://msdn.microsoft.com/en-us/library/byxd99hx(v=vs.71).aspx 5) What is SOA? Ans: SOA stands for “Services Oriented Architecture”. It is kind of service oriented architecture used to support different kind of computing platforms and applications. Web services in asp.net are one of the technologies that supports that kind of architecture.  You can call asp.net web services from any computing platforms and applications. 6) What is SOAP,WDSL and UDDI? Ans: SOAP stands “Simple Object Access protocol”. Web services will be interact with SOAP messages written in XML. SOAP is sometimes referred as “data wrapper” or “data envelope”.Its contains different xml tag that creates a whole SOAP message.  WSDL stand for “Web services Description Language”.  It is an xml document which is written according to standard specified by W3c. It is a kind of manual or document that describes how we can use and consume web service. Web services development software processes the WSDL document and generates SOAP messages that are needed for specific web service. UDDI stand for “Universal Discovery, Description and Integration”. Its is used for web services registries. You can find addresses of web services from UDDI.

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• Creating an ASP.NET report using Visual Studio 2010 - Part 3

  - by rajbk

  We continue building our report in this three part series. Creating an ASP.NET report using Visual Studio 2010 - Part 1 Creating an ASP.NET report using Visual Studio 2010 - Part 2 Adding the ReportViewer control and filter drop downs. Open the source code for index.aspx and add a ScriptManager control. This control is required for the ReportViewer control. Add a DropDownList for the categories and suppliers. Add the ReportViewer control. The markup after these steps is shown below. <div> <asp:ScriptManager ID="smScriptManager" runat="server"> </asp:ScriptManager> <div id="searchFilter"> Filter by: Category : <asp:DropDownList ID="ddlCategories" runat="server" /> and Supplier : <asp:DropDownList ID="ddlSuppliers" runat="server" /> </div> <rsweb:ReportViewer ID="rvProducts" runat="server"> </rsweb:ReportViewer> </div> The design view for index.aspx is shown below. The dropdowns will display the categories and suppliers in the database. Changing the selection in the drop downs will cause the report to be filtered by the selections in the dropdowns. You will see how to do this in the next steps.   Attaching the RDLC to the ReportViewer control by clicking on the top right of the control, going to Report Viewer tasks and selecting Products.rdlc.   Resize the ReportViewer control by dragging at the bottom right corner. I set mine to 800px x 500px. You can also set this value in source view. Defining the data sources. We will now define the Data Source used to populate the report. Go back to the “ReportViewer Tasks” and select “Choose Data Sources” Select a “New data source..” Select “Object” and name your Data Source ID “odsProducts”   In the next screen, choose “ProductRepository” as your business object. Choose “GetProductsProjected” in the next screen.   The method requires a SupplierID and CategoryID. We will set these so that our data source gets the values from the drop down lists we defined earlier. Set the parameter source to be of type “Control” and set the ControlIDs to be ddlSuppliers and ddlCategories respectively. Your screen will look like this: We are now going to define the data source for our drop downs. Select the ddlCategory drop down and pick “Choose Data Source”. Pick “Object” and give it an id “odsCategories”   In the next screen, choose “ProductRepository” Select the GetCategories() method in the next screen.   Select “CategoryName” and “CategoryID” in the next screen. We are done defining the data source for the Category drop down. Perform the same steps for the Suppliers drop down.   Select each dropdown and set the AppendDataBoundItems to true and AutoPostback to true.     The AppendDataBoundItems is needed because we are going to insert an “All“ list item with a value of empty. Go to each drop down and add this list item markup as shown below> Finally, double click on each drop down in the designer and add the following code in the code behind. This along with the “Autopostback= true” attribute refreshes the report anytime a drop down is changed. protected void ddlCategories_SelectedIndexChanged(object sender, EventArgs e) { rvProducts.LocalReport.Refresh(); }   protected void ddlSuppliers_SelectedIndexChanged(object sender, EventArgs e) { rvProducts.LocalReport.Refresh(); } Compile your report and run the page. You should see the report rendered. Note that the tool bar in the ReportViewer control gives you a couple of options including the ability to export the data to Excel, PDF or word.   Conclusion Through this three part series, we did the following: Created a data layer for use by our RDLC. Created an RDLC using the report wizard and define a dataset for the report. Used the report design surface to design our report including adding a chart. Used the ReportViewer control to attach the RDLC. Connected our ReportWiewer to a data source and take parameter values from the drop downlists. Used AutoPostBack to refresh the reports when the dropdown selection was changed. RDLCs allow you to create interactive reports including drill downs and grouping. For even more advanced reports you can use Microsoft® SQL Server™ Reporting Services with RDLs. With RDLs, the report is rendered on the report server instead of the web server. Another nice thing about RDLs is that you can define a parameter list for the report and it gets rendered automatically for you. RDLCs and RDLs both have their advantages and its best to compare them and choose the right one for your requirements. Download VS2010 RTM Sample project NorthwindReports.zip   Alfred Borden: Are you watching closely?

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• AppFabric OutputCaching for ASP.NET Web API

  - by cibrax

  ASP.NET Web API does not provide any output caching capabilities out of the box other than the ones you would traditionally find in the ASP.NET caching module. Fortunately, Filip wrote a very nice library that you can use to decorate your Web API controller methods with an [OutputCaching] attribute, which is similar to the one you can find in ASP.NET MVC. This library provides a way to configure different persistence storages for the cached data, which uses memory by default. As part of this post, I will show how you can implement your own persistence provider for AppFabric in order to support distributed caching on web applications running on premises. Read more here  

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• Invalid Html Response and JS Errors when you open your Application in Visual Studio 2013

  - by imran_ku07

   I was working on an application which uses Telerik controls. The application was working fine for a while. Suddenly, the application stopped working. I mean lot of my application pages becoming very very ugly. I found JavaScript errors on every Browser's console. When I check the page view-source, the generated HTML was messy and invalid. This was only happening with my local machine. If someone else on my network accesses my application pages, he will get the correct HTML and no JavaScript errors. My mind was blowing because the same page was generating invalid HTML(and JavaScript errors) when I access the page using a local browser but generate correct HTML(and no JavaScript errors) when someone else access my application page remotely. Then I realized that I the only change I made last was opening my application in Visual Studio 2013 RTM which I installed few days ago. I closed the Visual Studio 2013, everything work like a charm. Then I became100% sure that this is only happening due to new Visual Studio 2013 feature called Browser Link. I just open the application again and add this in web.config. Everything become fine Happy coding :)   <add key="vs:EnableBrowserLink" value="false" />

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• ASP.NET with MS Chart disable the vertical line

  - by Bayonian

  Hi, I have a graph created with MS Chart like the following picture. As you can see the vertical lines are messed up with value of the top of each bar. Here's the mark-up for the graph: <asp:Chart ID="chtNBAChampionships" runat="server"> <Series> <asp:Series Name="Championships" YValueType="Int32" ChartType="Column" ChartArea="MainChartArea" IsValueShownAsLabel="true"> <Points> <asp:DataPoint AxisLabel="Celtics" YValues="17" /> <asp:DataPoint AxisLabel="Lakers" YValues="15" /> <asp:DataPoint AxisLabel="Bulls" YValues="6" /> <asp:DataPoint AxisLabel="Spurs" YValues="4" /> <asp:DataPoint AxisLabel="76ers" YValues="3" /> <asp:DataPoint AxisLabel="Pistons" YValues="3" /> <asp:DataPoint AxisLabel="Warriors" YValues="3" /> </Points> </asp:Series> </Series> <ChartAreas> <asp:ChartArea Name="MainChartArea"> </asp:ChartArea> </ChartAreas> </asp:Chart> I don't want the display the vertical line because it's messed up with the value on top of the each bar. How can I disable the vertical line? Thank you.

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• Does Security Trimming work with Web Forms Routing?

  - by Slauma

  In my web.config I have configured a SiteMapProvider with securityTrimmingEnabled="true" and on my main master page is an asp:Menu control bound to an asp:SiteMapDataSource. In addition I have configured restricted access to all pages in a subfolder "Admin" (using another web.config in this subfolder). If I put a sitemapNode in Web.sitemap... <siteMapNode url="~/Admin/Default.aspx" title="Administration" description="" > ... only users in role "Admin" will have the menu item related to that siteMapNode. So this is working fine and as intended. Now I have defined a URL route in Global.asax to map the physical file to a new URL: System.Web.Routing.RouteTable.Routes.MapPageRoute("AdminHomeRoute", "Administration/Home", "~/Admin/Default.aspx"); But when I use this route-URL in the SiteMap file... <siteMapNode url="Administration/Home" title="Administration" description="" > ... it seems that security trimming does not work: The menu item is visible for all users. (Access to the page is still restricted though, so selecting the menu item by non-Admin users does not navigate to the restricted page.) Question: Is there any setting I've missed so far to make security trimming working with URL routing in ASP.NET 4.0 Web Forms? Did I do something wrong? Is there any work-around? Thank you for help!

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• ASP.NET MVC 3: Layouts and Sections with Razor

  - by ScottGu

  This is another in a series of posts I’m doing that cover some of the new ASP.NET MVC 3 features: Introducing Razor (July 2nd) New @model keyword in Razor (Oct 19th) Layouts with Razor (Oct 22nd) Server-Side Comments with Razor (Nov 12th) Razor’s @: and <text> syntax (Dec 15th) Implicit and Explicit code nuggets with Razor (Dec 16th) Layouts and Sections with Razor (Today) In today’s post I’m going to go into more details about how Layout pages work with Razor.  In particular, I’m going to cover how you can have multiple, non-contiguous, replaceable “sections” within a layout file – and enable views based on layouts to optionally “fill in” these different sections at runtime.  The Razor syntax for doing this is clean and concise. I’ll also show how you can dynamically check at runtime whether a particular layout section has been defined, and how you can provide alternate content (or even an alternate layout) in the event that a section isn’t specified within a view template.  This provides a powerful and easy way to customize the UI of your site and make it clean and DRY from an implementation perspective. What are Layouts? You typically want to maintain a consistent look and feel across all of the pages within your web-site/application.  ASP.NET 2.0 introduced the concept of “master pages” which helps enable this when using .aspx based pages or templates.  Razor also supports this concept with a feature called “layouts” – which allow you to define a common site template, and then inherit its look and feel across all the views/pages on your site. I previously discussed the basics of how layout files work with Razor in my ASP.NET MVC 3: Layouts with Razor blog post.  Today’s post will go deeper and discuss how you can define multiple, non-contiguous, replaceable regions within a layout file that you can then optionally “fill in” at runtime. Site Layout Scenario Let’s look at how we can implement a common site layout scenario with ASP.NET MVC 3 and Razor.  Specifically, we’ll implement some site UI where we have a common header and footer on all of our pages.  We’ll also add a “sidebar” section to the right of our common site layout.  On some pages we’ll customize the SideBar to contain content specific to the page it is included on: And on other pages (that do not have custom sidebar content) we will fall back and provide some “default content” to the sidebar: We’ll use ASP.NET MVC 3 and Razor to enable this customization in a nice, clean way.  Below are some step-by-step tutorial instructions on how to build the above site with ASP.NET MVC 3 and Razor. Part 1: Create a New Project with a Layout for the “Body” section We’ll begin by using the “File->New Project” menu command within Visual Studio to create a new ASP.NET MVC 3 Project.  We’ll create the new project using the “Empty” template option: This will create a new project that has no default controllers in it: Creating a HomeController We will then right-click on the “Controllers” folder of our newly created project and choose the “Add->Controller” context menu command.  This will bring up the “Add Controller” dialog: We’ll name the new controller we create “HomeController”.  When we click the “Add” button Visual Studio will add a HomeController class to our project with a default “Index” action method that returns a view: We won’t need to write any Controller logic to implement this sample – so we’ll leave the default code as-is.  Creating a View Template Our next step will be to implement the view template associated with the HomeController’s Index action method.  To implement the view template, we will right-click within the “HomeController.Index()” method and select the “Add View” command to create a view template for our home page: This will bring up the “Add View” dialog within Visual Studio.  We do not need to change any of the default settings within the above dialog (the name of the template was auto-populated to Index because we invoked the “Add View” context menu command within the Index method).  When we click the “Add” Button within the dialog, a Razor-based “Index.cshtml” view template will be added to the \Views\Home\ folder within our project.  Let’s add some simple default static content to it: Notice above how we don’t have an <html> or <body> section defined within our view template.  This is because we are going to rely on a layout template to supply these elements and use it to define the common site layout and structure for our site (ensuring that it is consistent across all pages and URLs within the site).  Customizing our Layout File Let’s open and customize the default “_Layout.cshtml” file that was automatically added to the \Views\Shared folder when we created our new project: The default layout file (shown above) is pretty basic and simply outputs a title (if specified in either the Controller or the View template) and adds links to a stylesheet and jQuery.  The call to “RenderBody()” indicates where the main body content of our Index.cshtml file will merged into the output sent back to the browser. Let’s modify the Layout template to add a common header, footer and sidebar to the site: We’ll then edit the “Site.css” file within the \Content folder of our project and add 4 CSS rules to it: And now when we run the project and browse to the home “/” URL of our project we’ll see a page like below: Notice how the content of the HomeController’s Index view template and the site’s Shared Layout template have been merged together into a single HTML response.  Below is what the HTML sent back from the server looks like: Part 2: Adding a “SideBar” Section Our site so far has a layout template that has only one “section” in it – what we call the main “body” section of the response.  Razor also supports the ability to add additional "named sections” to layout templates as well.  These sections can be defined anywhere in the layout file (including within the <head> section of the HTML), and allow you to output dynamic content to multiple, non-contiguous, regions of the final response. Defining the “SideBar” section in our Layout Let’s update our Layout template to define an additional “SideBar” section of content that will be rendered within the <div id=”sidebar”> region of our HTML.  We can do this by calling the RenderSection(string sectionName, bool required) helper method within our Layout.cshtml file like below:   The first parameter to the “RenderSection()” helper method specifies the name of the section we want to render at that location in the layout template.  The second parameter is optional, and allows us to define whether the section we are rendering is required or not.  If a section is “required”, then Razor will throw an error at runtime if that section is not implemented within a view template that is based on the layout file (which can make it easier to track down content errors).  If a section is not required, then its presence within a view template is optional, and the above RenderSection() code will render nothing at runtime if it isn’t defined. Now that we’ve made the above change to our layout file, let’s hit refresh in our browser and see what our Home page now looks like: Notice how we currently have no content within our SideBar <div> – that is because the Index.cshtml view template doesn’t implement our new “SideBar” section yet. Implementing the “SideBar” Section in our View Template Let’s change our home-page so that it has a SideBar section that outputs some custom content.  We can do that by opening up the Index.cshtml view template, and by adding a new “SiderBar” section to it.  We’ll do this using Razor’s @section SectionName { } syntax: We could have put our SideBar @section declaration anywhere within the view template.  I think it looks cleaner when defined at the top or bottom of the file – but that is simply personal preference.  You can include any content or code you want within @section declarations.  Notice above how I have a C# code nugget that outputs the current time at the bottom of the SideBar section.  I could have also written code that used ASP.NET MVC’s HTML/AJAX helper methods and/or accessed any strongly-typed model objects passed to the Index.cshtml view template. Now that we’ve made the above template changes, when we hit refresh in our browser again we’ll see that our SideBar content – that is specific to the Home Page of our site – is now included in the page response sent back from the server: The SideBar section content has been merged into the proper location of the HTML response : Part 3: Conditionally Detecting if a Layout Section Has Been Implemented Razor provides the ability for you to conditionally check (from within a layout file) whether a section has been defined within a view template, and enables you to output an alternative response in the event that the section has not been defined.  This provides a convenient way to specify default UI for optional layout sections.  Let’s modify our Layout file to take advantage of this capability.  Below we are conditionally checking whether the “SideBar” section has been defined without the view template being rendered (using the IsSectionDefined() method), and if so we render the section.  If the section has not been defined, then we now instead render some default content for the SideBar:  Note: You want to make sure you prefix calls to the RenderSection() helper method with a @ character – which will tell Razor to execute the HelperResult it returns and merge in the section content in the appropriate place of the output.  Notice how we wrote @RenderSection(“SideBar”) above instead of just RenderSection(“SideBar”).  Otherwise you’ll get an error. Above we are simply rendering an inline static string (<p>Default SideBar Content</p>) if the section is not defined.  A real-world site would more likely refactor this default content to be stored within a separate partial template (which we’d render using the Html.RenderPartial() helper method within the else block) or alternatively use the Html.Action() helper method within the else block to encapsulate both the logic and rendering of the default sidebar. When we hit refresh on our home-page, we will still see the same custom SideBar content we had before.  This is because we implemented the SideBar section within our Index.cshtml view template (and so our Layout rendered it): Let’s now implement a “/Home/About” URL for our site by adding a new “About” action method to our HomeController: The About() action method above simply renders a view back to the client when invoked.  We can implement the corresponding view template for this action by right-clicking within the “About()” method and using the “Add View” menu command (like before) to create a new About.cshtml view template.  We’ll implement the About.cshtml view template like below. Notice that we are not defining a “SideBar” section within it: When we browse the /Home/About URL we’ll see the content we supplied above in the main body section of our response, and the default SideBar content will rendered: The layout file determined at runtime that a custom SideBar section wasn’t present in the About.cshtml view template, and instead rendered the default sidebar content. One Last Tweak… Let’s suppose that at a later point we decide that instead of rendering default side-bar content, we just want to hide the side-bar entirely from pages that don’t have any custom sidebar content defined.  We could implement this change simply by making a small modification to our layout so that the sidebar content (and its surrounding HTML chrome) is only rendered if the SideBar section is defined.  The code to do this is below: Razor is flexible enough so that we can make changes like this and not have to modify any of our view templates (nor make change any Controller logic changes) to accommodate this.  We can instead make just this one modification to our Layout file and the rest happens cleanly.  This type of flexibility makes Razor incredibly powerful and productive. Summary Razor’s layout capability enables you to define a common site template, and then inherit its look and feel across all the views/pages on your site. Razor enables you to define multiple, non-contiguous, “sections” within layout templates that can be “filled-in” by view templates.  The @section {} syntax for doing this is clean and concise.  Razor also supports the ability to dynamically check at runtime whether a particular section has been defined, and to provide alternate content (or even an alternate layout) in the event that it isn’t specified.  This provides a powerful and easy way to customize the UI of your site - and make it clean and DRY from an implementation perspective. 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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• ViewBag dynamic in ASP.NET MVC 3 - RC 2

  - by hajan

  Earlier today Scott Guthrie announced the ASP.NET MVC 3 - Release Candidate 2. I installed the new version right after the announcement since I was eager to see the new features. Among other cool features included in this release candidate, there is a new ViewBag dynamic which can be used to pass data from Controllers to Views same as you use ViewData[] dictionary. What is great and nice about ViewBag (despite the name) is that its a dynamic type which means you can dynamically get/set values and add any number of additional fields without need of strongly-typed classes. In order to see the difference, please take a look at the following examples. Example - Using ViewData Controller public ActionResult Index() {     List<string> colors = new List<string>();     colors.Add("red");     colors.Add("green");     colors.Add("blue");                 ViewData["listColors"] = colors;     ViewData["dateNow"] = DateTime.Now;     ViewData["name"] = "Hajan";     ViewData["age"] = 25;     return View(); } View (ASPX View Engine) <p>     My name is     <b><%: ViewData["name"] %></b>,     <b><%: ViewData["age"] %></b> years old.     <br />         I like the following colors: </p> <ul id="colors"> <% foreach (var color in ViewData["listColors"] as List<string>){ %>     <li>        <font color="<%: color %>"><%: color %></font>    </li> <% } %> </ul> <p>     <%: ViewData["dateNow"] %> </p> (I know the code might look cleaner with Razor View engine, but it doesn’t matter right? ;) ) Example - Using ViewBag Controller public ActionResult Index() {     List<string> colors = new List<string>();     colors.Add("red");     colors.Add("green");     colors.Add("blue");     ViewBag.ListColors = colors; //colors is List     ViewBag.DateNow = DateTime.Now;     ViewBag.Name = "Hajan";     ViewBag.Age = 25;     return View(); } You see the difference? View (ASPX View Engine) <p>     My name is     <b><%: ViewBag.Name %></b>,     <b><%: ViewBag.Age %></b> years old.     <br />         I like the following colors: </p> <ul id="colors"> <% foreach (var color in ViewBag.ListColors) { %>     <li>         <font color="<%: color %>"><%: color %></font>     </li> <% } %> </ul> <p>     <%: ViewBag.DateNow %> </p> In my example now I don’t need to cast ViewBag.ListColors as List<string> since ViewBag is dynamic type! On the other hand the ViewData[“key”] is object.I would like to note that if you use ViewData["ListColors"] = colors; in your Controller, you can retrieve it in the View by using ViewBag.ListColors. And the result in both cases is Hope you like it! Regards, Hajan

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• Creating Rich View Components in ASP.NET MVC

  - by kazimanzurrashid

  One of the nice thing of our Telerik Extensions for ASP.NET MVC is, it gives you an excellent extensible platform to create rich view components. In this post, I will show you a tiny but very powerful ListView Component. Those who are familiar with the Webforms ListView component already knows that it has the support to define different parts of the component, we will have the same kind of support in our view component. Before showing you the markup, let me show you the screenshots first, lets say you want to show the customers of Northwind database as a pagable business card style (Yes the example is inspired from our RadControls Suite) And here is the markup of the above view component. <h2>Customers</h2> <% Html.Telerik() .ListView(Model) .Name("customers") .PrefixUrlParameters(false) .BeginLayout(pager => {%> <table border="0" cellpadding="3" cellspacing="1"> <tfoot> <tr> <td colspan="3" class="t-footer"> <% pager.Render(); %> </td> </tr> </tfoot> <tbody> <tr> <%}) .BeginGroup(() => {%> <td> <%}) .Item(item => {%> <fieldset style="border:1px solid #e0e0e0"> <legend><strong>Company Name</strong>:<%= Html.Encode(item.DataItem.CompanyName) %></legend> <div> <div style="float:left;width:120px"> <img alt="<%= item.DataItem.CustomerID %>" src="<%= Url.Content("~/Content/Images/Customers/" + item.DataItem.CustomerID + ".jpg") %>"/> </div> <div style="float:right"> <ul style="list-style:none none;padding:10px;margin:0"> <li> <strong>Contact Name:</strong> <%= Html.Encode(item.DataItem.ContactName) %> </li> <li> <strong>Title:</strong> <%= Html.Encode(item.DataItem.ContactTitle) %> </li> <li> <strong>City:</strong> <%= Html.Encode(item.DataItem.City)%> </li> <li> <strong>Country:</strong> <%= Html.Encode(item.DataItem.Country)%> </li> <li> <strong>Phone:</strong> <%= Html.Encode(item.DataItem.Phone)%> </li> <li> <div style="float:right"> <%= Html.ActionLink("Edit", "Edit", new { id = item.DataItem.CustomerID }) %> <%= Html.ActionLink("Delete", "Delete", new { id = item.DataItem.CustomerID })%> </div> </li> </ul> </div> </div> </fieldset> <%}) .EmptyItem(() =>{%> <fieldset style="border:1px solid #e0e0e0"> <legend>Empty</legend> </fieldset> <%}) .EndGroup(() => {%> </td> <%}) .EndLayout(pager => {%> </tr> </tbody> </table> <%}) .GroupItemCount(3) .PageSize(6) .Pager<NumericPager>(pager => pager.ShowFirstLast()) .Render(); %> As you can see that you have the complete control on the final angel brackets and like the webform’s version you also can define the templates. You can also use this component to show Master/Detail data, for example the customers and its order like the following: I am attaching the complete source code along with the above examples for your review, what do you think, how about creating some component with our extensions? Download: MvcListView.zip

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• More SharePoint 2010 Expression Builders

  - by Ricardo Peres

  Introduction Following my last post, I decided to publish the whole set of expression builders that I use with SharePoint. For all who don’t know about expression builders, they allow us to employ a declarative approach, so that we don’t have to write code for “gluing” things together, like getting a value from the query string, the page’s underlying SPListItem or the current SPContext and assigning it to a control’s property. These expression builders are for some quite common scenarios, I use them quite often, and I hope you find them useful as well. SPContextExpression This expression builder allows us to specify an expression to be processed on the SPContext.Current property object. For example: 1: <asp:Literal runat="server" Text=“<%$ SPContextExpression:Site.RootWeb.Lists[0].Author.LoginName %>”/> It is identical to having the following code: 1: String authorName = SPContext.Current.Site.RootWeb.Lists[0].Author.LoginName; SPFarmProperty Returns a property stored on the farm level: 1: <asp:Literal runat="server" Text="<%$ SPFarmProperty:SomeProperty %>"/> Identical to: 1: Object someProperty = SPFarm.Local.Properties["SomeProperty"]; SPField Returns the value of a selected page’s list item field: 1: <asp:Literal runat="server" Text="<%$ SPField:Title %>"/> Does the same as: 1: String title = SPContext.Current.ListItem["Title"] as String; SPIsInAudience Checks if the current user belongs to an audience: 1: <asp:CheckBox runat="server" Checked="<%$ SPIsInAudience:SomeAudience %>"/> Equivalent to: 1: AudienceManager audienceManager = new AudienceManager(SPServiceContext.Current); 2: Audience audience = audienceManager.Audiences["SomeAudience"]; 3: Boolean isMember = audience.IsMember(SPContext.Current.Web.User.LoginName); SPIsInGroup Checks if the current user belongs to a group: 1: <asp:CheckBox runat="server" Checked="<%$ SPIsInGroup:SomeGroup %>"/> The equivalent C# code is: 1: SPContext.Current.Web.CurrentUser.Groups.OfType<SPGroup>().Any(x => String.Equals(x.Name, “SomeGroup”, StringComparison.OrdinalIgnoreCase)); SPProperty Returns the value of a user profile property for the current user: 1: <asp:Literal runat="server" Text="<%$ SPProperty:LastName %>"/> Where the same code in C# would be: 1: UserProfileManager upm = new UserProfileManager(SPServiceContext.Current); 2: UserProfile u = upm.GetUserProfile(false); 3: Object property = u["LastName"].Value; SPQueryString Returns a value passed on the query string: 1: <asp:GridView runat="server" PageIndex="<%$ SPQueryString:PageIndex %>" /> Is equivalent to (no SharePoint code this time): 1: Int32 pageIndex = Convert.ChangeType(typeof(Int32), HttpContext.Current.Request.QueryString["PageIndex"]); SPWebProperty Returns the value of a property stored at the site level: 1: <asp:Literal runat="server" Text="<%$ SPWebProperty:__ImagesListId %>"/> You can get the same result as: 1: String imagesListId = SPContext.Current.Web.AllProperties["__ImagesListId"] as String; Code OK, let’s move to the code. First, a common abstract base class, mainly for inheriting the conversion method: 1: public abstract class SPBaseExpressionBuilder : ExpressionBuilder 2: { 3: #region Protected static methods 4: protected static Object Convert(Object value, PropertyInfo propertyInfo) 5: { 6: if (value != null) 7: { 8: if (propertyInfo.PropertyType.IsAssignableFrom(value.GetType()) == false) 9: { 10: if (propertyInfo.PropertyType.IsEnum == true) 11: { 12: value = Enum.Parse(propertyInfo.PropertyType, value.ToString(), true); 13: } 14: else if (propertyInfo.PropertyType == typeof(String)) 15: { 16: value = value.ToString(); 17: } 18: else if ((typeof(IConvertible).IsAssignableFrom(propertyInfo.PropertyType) == true) && (typeof(IConvertible).IsAssignableFrom(value.GetType()) == true)) 19: { 20: value = System.Convert.ChangeType(value, propertyInfo.PropertyType); 21: } 22: } 23: } 24:  25: return (value); 26: } 27: #endregion 28:  29: #region Public override methods 30: public override CodeExpression GetCodeExpression(BoundPropertyEntry entry, Object parsedData, ExpressionBuilderContext context) 31: { 32: if (String.IsNullOrEmpty(entry.Expression) == true) 33: { 34: return (new CodePrimitiveExpression(String.Empty)); 35: } 36: else 37: { 38: return (new CodeMethodInvokeExpression(new CodeMethodReferenceExpression(new CodeTypeReferenceExpression(this.GetType()), "GetValue"), new CodePrimitiveExpression(entry.Expression.Trim()), new CodePropertyReferenceExpression(new CodeArgumentReferenceExpression("entry"), "PropertyInfo"))); 39: } 40: } 41: #endregion 42:  43: #region Public override properties 44: public override Boolean SupportsEvaluate 45: { 46: get 47: { 48: return (true); 49: } 50: } 51: #endregion 52: } Next, the code for each expression builder: 1: [ExpressionPrefix("SPContext")] 2: public class SPContextExpressionBuilder : SPBaseExpressionBuilder 3: { 4: #region Public static methods 5: public static Object GetValue(String expression, PropertyInfo propertyInfo) 6: { 7: SPContext context = SPContext.Current; 8: Object expressionValue = DataBinder.Eval(context, expression.Trim().Replace('\'', '"')); 9:  10: expressionValue = Convert(expressionValue, propertyInfo); 11:  12: return (expressionValue); 13: } 14:  15: #endregion 16:  17: #region Public override methods 18: public override Object EvaluateExpression(Object target, BoundPropertyEntry entry, Object parsedData, ExpressionBuilderContext context) 19: { 20: return (GetValue(entry.Expression, entry.PropertyInfo)); 21: } 22: #endregion 23: }   1: [ExpressionPrefix("SPFarmProperty")] 2: public class SPFarmPropertyExpressionBuilder : SPBaseExpressionBuilder 3: { 4: #region Public static methods 5: public static Object GetValue(String propertyName, PropertyInfo propertyInfo) 6: { 7: Object propertyValue = SPFarm.Local.Properties[propertyName]; 8:  9: propertyValue = Convert(propertyValue, propertyInfo); 10:  11: return (propertyValue); 12: } 13:  14: #endregion 15:  16: #region Public override methods 17: public override Object EvaluateExpression(Object target, BoundPropertyEntry entry, Object parsedData, ExpressionBuilderContext context) 18: { 19: return (GetValue(entry.Expression, entry.PropertyInfo)); 20: } 21: #endregion 22: }   1: [ExpressionPrefix("SPField")] 2: public class SPFieldExpressionBuilder : SPBaseExpressionBuilder 3: { 4: #region Public static methods 5: public static Object GetValue(String fieldName, PropertyInfo propertyInfo) 6: { 7: Object fieldValue = SPContext.Current.ListItem[fieldName]; 8:  9: fieldValue = Convert(fieldValue, propertyInfo); 10:  11: return (fieldValue); 12: } 13:  14: #endregion 15:  16: #region Public override methods 17: public override Object EvaluateExpression(Object target, BoundPropertyEntry entry, Object parsedData, ExpressionBuilderContext context) 18: { 19: return (GetValue(entry.Expression, entry.PropertyInfo)); 20: } 21: #endregion 22: }   1: [ExpressionPrefix("SPIsInAudience")] 2: public class SPIsInAudienceExpressionBuilder : SPBaseExpressionBuilder 3: { 4: #region Public static methods 5: public static Object GetValue(String audienceName, PropertyInfo info) 6: { 7: Debugger.Break(); 8: audienceName = audienceName.Trim(); 9:  10: if ((audienceName.StartsWith("'") == true) && (audienceName.EndsWith("'") == true)) 11: { 12: audienceName = audienceName.Substring(1, audienceName.Length - 2); 13: } 14:  15: AudienceManager manager = new AudienceManager(); 16: Object value = manager.IsMemberOfAudience(SPControl.GetContextWeb(HttpContext.Current).CurrentUser.LoginName, audienceName); 17:  18: if (info.PropertyType == typeof(String)) 19: { 20: value = value.ToString(); 21: } 22:  23: return(value); 24: } 25:  26: #endregion 27:  28: #region Public override methods 29: public override Object EvaluateExpression(Object target, BoundPropertyEntry entry, Object parsedData, ExpressionBuilderContext context) 30: { 31: return (GetValue(entry.Expression, entry.PropertyInfo)); 32: } 33: #endregion 34: }   1: [ExpressionPrefix("SPIsInGroup")] 2: public class SPIsInGroupExpressionBuilder : SPBaseExpressionBuilder 3: { 4: #region Public static methods 5: public static Object GetValue(String groupName, PropertyInfo info) 6: { 7: groupName = groupName.Trim(); 8:  9: if ((groupName.StartsWith("'") == true) && (groupName.EndsWith("'") == true)) 10: { 11: groupName = groupName.Substring(1, groupName.Length - 2); 12: } 13:  14: Object value = SPControl.GetContextWeb(HttpContext.Current).CurrentUser.Groups.OfType<SPGroup>().Any(x => String.Equals(x.Name, groupName, StringComparison.OrdinalIgnoreCase)); 15:  16: if (info.PropertyType == typeof(String)) 17: { 18: value = value.ToString(); 19: } 20:  21: return(value); 22: } 23:  24: #endregion 25:  26: #region Public override methods 27: public override Object EvaluateExpression(Object target, BoundPropertyEntry entry, Object parsedData, ExpressionBuilderContext context) 28: { 29: return (GetValue(entry.Expression, entry.PropertyInfo)); 30: } 31: #endregion 32: }   1: [ExpressionPrefix("SPProperty")] 2: public class SPPropertyExpressionBuilder : SPBaseExpressionBuilder 3: { 4: #region Public static methods 5: public static Object GetValue(String propertyName, System.Reflection.PropertyInfo propertyInfo) 6: { 7: SPServiceContext serviceContext = SPServiceContext.GetContext(HttpContext.Current); 8: UserProfileManager upm = new UserProfileManager(serviceContext); 9: UserProfile up = upm.GetUserProfile(false); 10: Object propertyValue = (up[propertyName] != null) ? up[propertyName].Value : null; 11:  12: propertyValue = Convert(propertyValue, propertyInfo); 13:  14: return (propertyValue); 15: } 16:  17: #endregion 18:  19: #region Public override methods 20: public override Object EvaluateExpression(Object target, BoundPropertyEntry entry, Object parsedData, ExpressionBuilderContext context) 21: { 22: return (GetValue(entry.Expression, entry.PropertyInfo)); 23: } 24: #endregion 25: }   1: [ExpressionPrefix("SPQueryString")] 2: public class SPQueryStringExpressionBuilder : SPBaseExpressionBuilder 3: { 4: #region Public static methods 5: public static Object GetValue(String parameterName, PropertyInfo propertyInfo) 6: { 7: Object parameterValue = HttpContext.Current.Request.QueryString[parameterName]; 8:  9: parameterValue = Convert(parameterValue, propertyInfo); 10:  11: return (parameterValue); 12: } 13:  14: #endregion 15:  16: #region Public override methods 17: public override Object EvaluateExpression(Object target, BoundPropertyEntry entry, Object parsedData, ExpressionBuilderContext context) 18: { 19: return (GetValue(entry.Expression, entry.PropertyInfo)); 20: } 21: #endregion 22: }   1: [ExpressionPrefix("SPWebProperty")] 2: public class SPWebPropertyExpressionBuilder : SPBaseExpressionBuilder 3: { 4: #region Public static methods 5: public static Object GetValue(String propertyName, PropertyInfo propertyInfo) 6: { 7: Object propertyValue = SPContext.Current.Web.AllProperties[propertyName]; 8:  9: propertyValue = Convert(propertyValue, propertyInfo); 10:  11: return (propertyValue); 12: } 13:  14: #endregion 15:  16: #region Public override methods 17: public override Object EvaluateExpression(Object target, BoundPropertyEntry entry, Object parsedData, ExpressionBuilderContext context) 18: { 19: return (GetValue(entry.Expression, entry.PropertyInfo)); 20: } 21: #endregion 22: } Registration You probably know how to register them, but here it goes again: add this following snippet to your Web.config file, inside the configuration/system.web/compilation/expressionBuilders section: 1: <add expressionPrefix="SPContext" type="MyNamespace.SPContextExpressionBuilder, MyAssembly, Culture=neutral, Version=1.0.0.0, PublicKeyToken=xxx" /> 2: <add expressionPrefix="SPFarmProperty" type="MyNamespace.SPFarmPropertyExpressionBuilder, MyAssembly, Culture=neutral, Version=1.0.0.0, PublicKeyToken=xxx" /> 3: <add expressionPrefix="SPField" type="MyNamespace.SPFieldExpressionBuilder, MyAssembly, Culture=neutral, Version=1.0.0.0, PublicKeyToken=xxx" /> 4: <add expressionPrefix="SPIsInAudience" type="MyNamespace.SPIsInAudienceExpressionBuilder, MyAssembly, Culture=neutral, Version=1.0.0.0, PublicKeyToken=xxx" /> 5: <add expressionPrefix="SPIsInGroup" type="MyNamespace.SPIsInGroupExpressionBuilder, MyAssembly, Culture=neutral, Version=1.0.0.0, PublicKeyToken=xxx" /> 6: <add expressionPrefix="SPProperty" type="MyNamespace.SPPropertyExpressionBuilder, MyAssembly, Culture=neutral, Version=1.0.0.0, PublicKeyToken=xxx" /> 7: <add expressionPrefix="SPQueryString" type="MyNamespace.SPQueryStringExpressionBuilder, MyAssembly, Culture=neutral, Version=1.0.0.0, PublicKeyToken=xxx" /> 8: <add expressionPrefix="SPWebProperty" type="MyNamespace.SPWebPropertyExpressionBuilder, MyAssembly, Culture=neutral, Version=1.0.0.0, PublicKeyToken=xxx" /> I’ll leave it up to you to figure out the best way to deploy this to your server!

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• Exposing BL as WCF service

  - by Oren Schwartz

  I'm working on a middle-tier project which encapsulates the business logic (uses a DAL layer, and serves a web application server [ASP.net]) of a product deployed in a LAN. The BL serves as a bunch of services and data objects that are invoked upon user action. At present times, the DAL acts as a separate application whereas the BL uses it, but is consumed by the web application as a DLL. Both the DAL and the web application are deployed on different servers inside organization, and since the BL DLL is consumed by the web application, it resides in the same server. The worst thing about exposing the BL as a DLL is that we lost track with what we expose. Deployment is not such a big issue since mostly, product versions are deployed together. Would you recommend migrating from DLL to WCF service? if so, why ? Do you know anyone who had a similar experience ? Thank you !

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• Exposing BL as WCF service

  - by Oren Schwartz

  I'm working on a middle-tier project which encapsulates the business logic (uses a DAL layer, and serves a web application server [ASP.net]) of a product deployed in a LAN. The BL serves as a bunch of services and data objects that are invoked upon user action. At present times, the DAL acts as a separate application whereas the BL uses it, but is consumed by the web application as a DLL. Both the DAL and the web application are deployed on different servers inside organization, and since the BL DLL is consumed by the web application, it resides in the same server. The worst thing about exposing the BL as a DLL is that we lost track with what we expose. Deployment is not such a big issue since mostly, product versions are deployed together. Would you recommend migrating from DLL to WCF service? if so, why ? Do you know anyone who had a similar experience ?

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• Hosting a website on Heroku.... I know how to, but im running into problems!

  - by Thomas Miller

  I'm starting to learn more on the back-end scale of programing. Recently I started up Heroku for the second or third time. This time I actually installed the Git update to my Mac and installed Heroku in the terminal. I wanted to upload a static html site with the sinatra gem. Everything worked out fine inside the terminal, though I added sinatra after I got everything working and the file with the site hooked up to Heroku. In my logs I did see that I was missing the sinatra gem, so I installed it. My site contains both the proper app.rb and config.ru files. I have nothing showing up online. Just a blank screen! Contacting Heroku on this problem has been very difficult. I get a responce every day, and on every day I respond with a question to the answer that didn't help me at all. 2011-05-18T00:25:20+00:00 app[web.1]: 71.198.0.51 - - [17/May/2011 17:25:20] "GET /favicon.ico HTTP/1.1" 404 18 0.0008 2011-05-18T00:25:20+00:00 heroku[router]: GET pxlc.heroku.com/favicon.ico dyno=web.1 queue=0 wait=0ms service=2ms bytes=313 2011-05-18T00:25:26+00:00 app[web.1]: 71.198.0.51 - - [17/May/2011 17:25:26] "GET /favicon.ico HTTP/1.1" 404 18 0.0008 2011-05-18T00:25:26+00:00 heroku[router]: GET pxlc.heroku.com/favicon.ico dyno=web.1 queue=0 wait=0ms service=5ms bytes=313 2011-05-17T18:25:51-07:00 heroku[web.1]: Idling 2011-05-17T18:26:01-07:00 heroku[web.1]: State changed from up to down 2011-05-18T01:26:01+00:00 heroku[web.1]: Stopping process with SIGTERM 2011-05-18T01:26:01+00:00 app[web.1]: Stopping ... 2011-05-18T01:26:02+00:00 heroku[web.1]: Process exited 2011-05-17T20:12:46-07:00 heroku[web.1]: Unidling 2011-05-17T20:12:47-07:00 heroku[web.1]: State changed from created to starting 2011-05-18T03:12:48+00:00 heroku[web.1]: Starting process with command: thin -p 40055 -e production -R /home/heroku_rack/heroku.ru start 2011-05-18T03:12:49+00:00 app[web.1]: Thin web server (v1.2.6 codename Crazy Delicious) 2011-05-18T03:12:49+00:00 app[web.1]: Maximum connections set to 1024 2011-05-18T03:12:49+00:00 app[web.1]: Listening on 0.0.0.0:40055, CTRL+C to stop 2011-05-18T03:12:50+00:00 heroku[router]: GET pxlc.heroku.com/ dyno=web.1 queue=0 wait=9954ms service=6ms bytes=565 2011-05-18T03:12:50+00:00 app[web.1]: 70.91.206.114 - - [17/May/2011 20:12:50] "GET /style.css HTTP/1.1" 200 - 0.0012 2011-05-18T03:12:50+00:00 heroku[router]: GET pxlc.heroku.com/style.css dyno=web.1 queue=0 wait=0ms service=2ms bytes=269 2011-05-17T20:12:50-07:00 heroku[web.1]: State changed from starting to up 2011-05-18T03:12:51+00:00 app[web.1]: 70.91.206.114 - - [17/May/2011 20:12:51] "GET /favicon.ico HTTP/1.1" 404 18 0.0008 2011-05-18T03:12:51+00:00 heroku[router]: GET pxlc.heroku.com/favicon.ico dyno=web.1 queue=0 wait=0ms service=4ms bytes=313 2011-05-18T03:13:05+00:00 heroku[router]: GET pxlc.heroku.com/ dyno=web.1 queue=0 wait=0ms service=5ms bytes=565 2011-05-18T03:13:05+00:00 app[web.1]: 70.91.206.114 - - [17/May/2011 20:13:05] "GET / HTTP/1.1" 200 293 0.0011 2011-05-18T03:13:05+00:00 heroku[router]: GET pxlc.heroku.com/favicon.ico dyno=web.1 queue=0 wait=0ms service=2ms bytes=313 2011-05-18T03:13:05+00:00 app[web.1]: 70.91.206.114 - - [17/May/2011 20:13:05] "GET /favicon.ico HTTP/1.1" 404 18 0.0007 2011-05-18T03:57:05+00:00 app[web.1]: 172.18.33.56, 58.96.134.66 - - [17/May/2011 20:57:05] "GET / HTTP/1.1" 200 293 0.0007 2011-05-18T03:57:05+00:00 heroku[router]: GET pxlc.heroku.com/ dyno=web.1 queue=0 wait=0ms service=4ms bytes=565 2011-05-18T03:57:05+00:00 app[web.1]: 172.18.33.56, 58.96.134.66 - - [17/May/2011 20:57:05] "GET /style.css HTTP/1.1" 200 - 0.0007 2011-05-18T03:57:05+00:00 heroku[router]: GET pxlc.heroku.com/style.css dyno=web.1 queue=0 wait=0ms service=2ms bytes=269 2011-05-18T03:57:08+00:00 app[web.1]: 172.18.33.56, 58.96.134.66 - - [17/May/2011 20:57:08] "GET /favicon.ico HTTP/1.1" 404 18 0.0008 2011-05-17T21:58:27-07:00 heroku[web.1]: Idling 2011-05-18T04:58:30+00:00 heroku[web.1]: Stopping process with SIGTERM 2011-05-18T04:58:30+00:00 app[web.1]: Stopping ... 2011-05-18T04:58:30+00:00 heroku[web.1]: Process exited 2011-05-17T21:58:33-07:00 heroku[web.1]: State changed from up to down 2011-05-17T23:11:58-07:00 heroku[web.1]: Unidling 2011-05-17T23:11:58-07:00 heroku[web.1]: State changed from created to starting 2011-05-18T06:12:00+00:00 heroku[web.1]: Starting process with command: thin -p 40091 -e production -R /home/heroku_rack/heroku.ru start 2011-05-18T06:12:01+00:00 app[web.1]: Thin web server (v1.2.6 codename Crazy Delicious) 2011-05-18T06:12:01+00:00 app[web.1]: Maximum connections set to 1024 2011-05-18T06:12:01+00:00 app[web.1]: Listening on 0.0.0.0:40091, CTRL+C to stop 2011-05-18T06:12:01+00:00 app[web.1]: 183.97.156.226 - - [17/May/2011 23:12:01] "GET / HTTP/1.1" 200 293 0.0017 2011-05-18T06:12:02+00:00 heroku[router]: GET pxlc.heroku.com/ dyno=web.1 queue=0 wait=3209ms service=5ms bytes=565 2011-05-18T06:12:03+00:00 app[web.1]: 183.97.156.226 - - [17/May/2011 23:12:03] "GET /style.css HTTP/1.1" 200 - 0.0019 2011-05-17T23:12:08-07:00 heroku[web.1]: State changed from starting to up 2011-05-18T00:13:13-07:00 heroku[web.1]: Idling 2011-05-18T00:13:16-07:00 heroku[web.1]: State changed from up to down 2011-05-18T07:13:16+00:00 heroku[web.1]: Stopping process with SIGTERM 2011-05-18T07:13:16+00:00 app[web.1]: Stopping ... 2011-05-18T07:13:17+00:00 heroku[web.1]: Process exited 2011-05-18T01:54:21-07:00 heroku[web.1]: Unidling 2011-05-18T01:54:21-07:00 heroku[web.1]: State changed from created to starting 2011-05-18T08:54:23+00:00 heroku[web.1]: Starting process with command: thin -p 59491 -e production -R /home/heroku_rack/heroku.ru start 2011-05-18T08:54:24+00:00 app[web.1]: Thin web server (v1.2.6 codename Crazy Delicious) 2011-05-18T08:54:24+00:00 app[web.1]: Maximum connections set to 1024 2011-05-18T08:54:24+00:00 app[web.1]: Listening on 0.0.0.0:59491, CTRL+C to stop 2011-05-18T01:54:28-07:00 heroku[web.1]: State changed from starting to up 2011-05-18T08:54:28+00:00 heroku[router]: GET pxlc.heroku.com/ dyno=web.1 queue=0 wait=6943ms service=6ms bytes=565 2011-05-18T08:54:28+00:00 app[web.1]: 62.244.82.72 - - [18/May/2011 01:54:28] "GET / HTTP/1.1" 200 293 0.0018 2011-05-18T08:54:28+00:00 heroku[router]: GET pxlc.heroku.com/style.css dyno=web.1 queue=0 wait=0ms service=2ms bytes=269 2011-05-18T08:54:28+00:00 app[web.1]: 62.244.82.72 - - [18/May/2011 01:54:28] "GET /style.css HTTP/1.1" 200 - 0.0014 2011-05-18T08:54:28+00:00 app[web.1]: 62.244.82.72 - - [18/May/2011 01:54:28] "GET /favicon.ico HTTP/1.1" 404 18 0.0008 2011-05-18T08:54:28+00:00 heroku[router]: GET pxlc.heroku.com/favicon.ico dyno=web.1 queue=0 wait=0ms service=1ms bytes=313 2011-05-18T08:54:28+00:00 heroku[router]: GET pxlc.heroku.com/favicon.ico dyno=web.1 queue=0 wait=0ms service=4ms bytes=313 2011-05-18T08:54:28+00:00 app[web.1]: 62.244.82.72 - - [18/May/2011 01:54:28] "GET /favicon.ico HTTP/1.1" 404 18 0.0008 2011-05-18T08:54:28+00:00 app[web.1]: 62.244.82.72 - - [18/May/2011 01:54:28] "GET /favicon.ico HTTP/1.1" 404 18 0.0008 2011-05-18T08:54:28+00:00 heroku[router]: GET pxlc.heroku.com/favicon.ico dyno=web.1 queue=0 wait=0ms service=1ms bytes=313 2011-05-18T02:55:23-07:00 heroku[web.1]: Idling 2011-05-18T02:55:33-07:00 heroku[web.1]: State changed from up to down 2011-05-18T09:55:34+00:00 heroku[web.1]: Stopping process with SIGTERM 2011-05-18T09:55:34+00:00 app[web.1]: Stopping ... 2011-05-18T09:55:34+00:00 heroku[web.1]: Process exited 2011-05-18T07:23:10-07:00 heroku[web.1]: State changed from created to starting 2011-05-18T14:23:12+00:00 heroku[web.1]: Starting process with command: thin -p 20560 -e production -R /home/heroku_rack/heroku.ru start 2011-05-18T14:23:13+00:00 app[web.1]: Thin web server (v1.2.6 codename Crazy Delicious) 2011-05-18T14:23:13+00:00 app[web.1]: Maximum connections set to 1024 2011-05-18T14:23:13+00:00 app[web.1]: Listening on 0.0.0.0:20560, CTRL+C to stop 2011-05-18T07:23:13-07:00 heroku[web.1]: State changed from starting to up 2011-05-18T14:23:14+00:00 app[web.1]: 12.183.19.10 - - [18/May/2011 07:23:14] "GET / HTTP/1.1" 200 293 0.0018 2011-05-18T14:23:14+00:00 heroku[router]: GET pxlc.heroku.com/ dyno=web.1 queue=0 wait=0ms service=7ms bytes=565 2011-05-18T14:23:14+00:00 app[web.1]: 12.183.19.10 - - [18/May/2011 07:23:14] "GET /style.css HTTP/1.1" 200 - 0.0015 2011-05-18T14:23:14+00:00 heroku[router]: GET pxlc.heroku.com/style.css dyno=web.1 queue=0 wait=0ms service=2ms bytes=269 2011-05-18T14:23:14+00:00 app[web.1]: 12.183.19.10 - - [18/May/2011 07:23:14] "GET /favicon.ico HTTP/1.1" 404 18 0.0009 2011-05-18T14:23:14+00:00 heroku[router]: GET pxlc.heroku.com/favicon.ico dyno=web.1 queue=0 wait=0ms service=2ms bytes=313 2011-05-18T08:24:03-07:00 heroku[web.1]: Idling 2011-05-18T08:24:07-07:00 heroku[web.1]: State changed from up to down 2011-05-18T15:24:07+00:00 heroku[web.1]: Stopping process with SIGTERM 2011-05-18T15:24:07+00:00 app[web.1]: Stopping ... 2011-05-18T17:34:27-07:00 heroku[web.1]: Unidling 2011-05-18T17:34:28-07:00 heroku[web.1]: State changed from created to starting 2011-05-19T00:34:29+00:00 heroku[web.1]: Starting process with command: thin -p 57621 -e production -R /home/heroku_rack/heroku.ru start 2011-05-18T17:34:31-07:00 heroku[web.1]: State changed from starting to up 2011-05-19T00:34:32+00:00 heroku[router]: GET pxlc.heroku.com/ dyno=web.1 queue=0 wait=0ms service=5ms bytes=565 2011-05-19T00:34:32+00:00 app[web.1]: 97.83.58.74 - - [18/May/2011 17:34:32] "GET / HTTP/1.1" 200 293 0.0016 2011-05-19T00:34:32+00:00 app[web.1]: 97.83.58.74 - - [18/May/2011 17:34:32] "GET /style.css HTTP/1.1" 200 - 0.0011 2011-05-19T00:34:32+00:00 heroku[router]: GET pxlc.heroku.com/style.css dyno=web.1 queue=0 wait=0ms service=2ms bytes=269 2011-05-19T00:34:34+00:00 heroku[router]: GET pxlc.heroku.com/favicon.ico dyno=web.1 queue=0 wait=0ms service=4ms bytes=313 2011-05-19T00:34:34+00:00 app[web.1]: 97.83.58.74 - - [18/May/2011 17:34:34] "GET /favicon.ico HTTP/1.1" 404 18 0.0007 2011-05-18T18:35:48-07:00 heroku[web.1]: Idling 2011-05-18T18:35:51-07:00 heroku[web.1]: State changed from up to down

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• Hosting a website on Heroku.... I know how to, but im running into problems!

  - by Thomas Miller

  I'm starting to learn more on the back-end scale of programing. Recently I started up Heroku for the second or third time. This time I actually installed the Git update to my Mac and installed Heroku in the terminal. I wanted to upload a static html site with the Sinatra gem. Everything worked out fine inside the terminal, though I added Sinatra after I got everything working and the file with the site hooked up to Heroku. In my logs I did see that I was missing the Sinatra gem, so I installed it. My site contains both the proper app.rb and config.ru files. I have nothing showing up online. Just a blank screen! Contacting Heroku on this problem has been very difficult. I get a response every day, and on every day I respond with a question to the answer that didn't help me at all. 2011-05-18T00:25:20+00:00 app[web.1]: 71.198.0.51 - - [17/May/2011 17:25:20] "GET /favicon.ico HTTP/1.1" 404 18 0.0008 2011-05-18T00:25:20+00:00 heroku[router]: GET pxlc.heroku.com/favicon.ico dyno=web.1 queue=0 wait=0ms service=2ms bytes=313 2011-05-18T00:25:26+00:00 app[web.1]: 71.198.0.51 - - [17/May/2011 17:25:26] "GET /favicon.ico HTTP/1.1" 404 18 0.0008 2011-05-18T00:25:26+00:00 heroku[router]: GET pxlc.heroku.com/favicon.ico dyno=web.1 queue=0 wait=0ms service=5ms bytes=313 2011-05-17T18:25:51-07:00 heroku[web.1]: Idling 2011-05-17T18:26:01-07:00 heroku[web.1]: State changed from up to down 2011-05-18T01:26:01+00:00 heroku[web.1]: Stopping process with SIGTERM 2011-05-18T01:26:01+00:00 app[web.1]: >> Stopping ... 2011-05-18T01:26:02+00:00 heroku[web.1]: Process exited 2011-05-17T20:12:46-07:00 heroku[web.1]: Unidling 2011-05-17T20:12:47-07:00 heroku[web.1]: State changed from created to starting 2011-05-18T03:12:48+00:00 heroku[web.1]: Starting process with command: `thin -p 40055 -e production -R /home/heroku_rack/heroku.ru start` 2011-05-18T03:12:49+00:00 app[web.1]: >> Thin web server (v1.2.6 codename Crazy Delicious) 2011-05-18T03:12:49+00:00 app[web.1]: >> Maximum connections set to 1024 2011-05-18T03:12:49+00:00 app[web.1]: >> Listening on 0.0.0.0:40055, CTRL+C to stop 2011-05-18T03:12:50+00:00 heroku[router]: GET pxlc.heroku.com/ dyno=web.1 queue=0 wait=9954ms service=6ms bytes=565 2011-05-18T03:12:50+00:00 app[web.1]: 70.91.206.114 - - [17/May/2011 20:12:50] "GET /style.css HTTP/1.1" 200 - 0.0012 2011-05-18T03:12:50+00:00 heroku[router]: GET pxlc.heroku.com/style.css dyno=web.1 queue=0 wait=0ms service=2ms bytes=269 2011-05-17T20:12:50-07:00 heroku[web.1]: State changed from starting to up 2011-05-18T03:12:51+00:00 app[web.1]: 70.91.206.114 - - [17/May/2011 20:12:51] "GET /favicon.ico HTTP/1.1" 404 18 0.0008 2011-05-18T03:12:51+00:00 heroku[router]: GET pxlc.heroku.com/favicon.ico dyno=web.1 queue=0 wait=0ms service=4ms bytes=313 2011-05-18T03:13:05+00:00 heroku[router]: GET pxlc.heroku.com/ dyno=web.1 queue=0 wait=0ms service=5ms bytes=565 2011-05-18T03:13:05+00:00 app[web.1]: 70.91.206.114 - - [17/May/2011 20:13:05] "GET / HTTP/1.1" 200 293 0.0011 2011-05-18T03:13:05+00:00 heroku[router]: GET pxlc.heroku.com/favicon.ico dyno=web.1 queue=0 wait=0ms service=2ms bytes=313 2011-05-18T03:13:05+00:00 app[web.1]: 70.91.206.114 - - [17/May/2011 20:13:05] "GET /favicon.ico HTTP/1.1" 404 18 0.0007 2011-05-18T03:57:05+00:00 app[web.1]: 172.18.33.56, 58.96.134.66 - - [17/May/2011 20:57:05] "GET / HTTP/1.1" 200 293 0.0007 2011-05-18T03:57:05+00:00 heroku[router]: GET pxlc.heroku.com/ dyno=web.1 queue=0 wait=0ms service=4ms bytes=565 2011-05-18T03:57:05+00:00 app[web.1]: 172.18.33.56, 58.96.134.66 - - [17/May/2011 20:57:05] "GET /style.css HTTP/1.1" 200 - 0.0007 2011-05-18T03:57:05+00:00 heroku[router]: GET pxlc.heroku.com/style.css dyno=web.1 queue=0 wait=0ms service=2ms bytes=269 2011-05-18T03:57:08+00:00 app[web.1]: 172.18.33.56, 58.96.134.66 - - [17/May/2011 20:57:08] "GET /favicon.ico HTTP/1.1" 404 18 0.0008 2011-05-17T21:58:27-07:00 heroku[web.1]: Idling 2011-05-18T04:58:30+00:00 heroku[web.1]: Stopping process with SIGTERM 2011-05-18T04:58:30+00:00 app[web.1]: >> Stopping ... 2011-05-18T04:58:30+00:00 heroku[web.1]: Process exited 2011-05-17T21:58:33-07:00 heroku[web.1]: State changed from up to down 2011-05-17T23:11:58-07:00 heroku[web.1]: Unidling 2011-05-17T23:11:58-07:00 heroku[web.1]: State changed from created to starting 2011-05-18T06:12:00+00:00 heroku[web.1]: Starting process with command: `thin -p 40091 -e production -R /home/heroku_rack/heroku.ru start` 2011-05-18T06:12:01+00:00 app[web.1]: >> Thin web server (v1.2.6 codename Crazy Delicious) 2011-05-18T06:12:01+00:00 app[web.1]: >> Maximum connections set to 1024 2011-05-18T06:12:01+00:00 app[web.1]: >> Listening on 0.0.0.0:40091, CTRL+C to stop 2011-05-18T06:12:01+00:00 app[web.1]: 183.97.156.226 - - [17/May/2011 23:12:01] "GET / HTTP/1.1" 200 293 0.0017 2011-05-18T06:12:02+00:00 heroku[router]: GET pxlc.heroku.com/ dyno=web.1 queue=0 wait=3209ms service=5ms bytes=565 2011-05-18T06:12:03+00:00 app[web.1]: 183.97.156.226 - - [17/May/2011 23:12:03] "GET /style.css HTTP/1.1" 200 - 0.0019 2011-05-17T23:12:08-07:00 heroku[web.1]: State changed from starting to up 2011-05-18T00:13:13-07:00 heroku[web.1]: Idling 2011-05-18T00:13:16-07:00 heroku[web.1]: State changed from up to down 2011-05-18T07:13:16+00:00 heroku[web.1]: Stopping process with SIGTERM 2011-05-18T07:13:16+00:00 app[web.1]: >> Stopping ... 2011-05-18T07:13:17+00:00 heroku[web.1]: Process exited 2011-05-18T01:54:21-07:00 heroku[web.1]: Unidling 2011-05-18T01:54:21-07:00 heroku[web.1]: State changed from created to starting 2011-05-18T08:54:23+00:00 heroku[web.1]: Starting process with command: `thin -p 59491 -e production -R /home/heroku_rack/heroku.ru start` 2011-05-18T08:54:24+00:00 app[web.1]: >> Thin web server (v1.2.6 codename Crazy Delicious) 2011-05-18T08:54:24+00:00 app[web.1]: >> Maximum connections set to 1024 2011-05-18T08:54:24+00:00 app[web.1]: >> Listening on 0.0.0.0:59491, CTRL+C to stop 2011-05-18T01:54:28-07:00 heroku[web.1]: State changed from starting to up 2011-05-18T08:54:28+00:00 heroku[router]: GET pxlc.heroku.com/ dyno=web.1 queue=0 wait=6943ms service=6ms bytes=565 2011-05-18T08:54:28+00:00 app[web.1]: 62.244.82.72 - - [18/May/2011 01:54:28] "GET / HTTP/1.1" 200 293 0.0018 2011-05-18T08:54:28+00:00 heroku[router]: GET pxlc.heroku.com/style.css dyno=web.1 queue=0 wait=0ms service=2ms bytes=269 2011-05-18T08:54:28+00:00 app[web.1]: 62.244.82.72 - - [18/May/2011 01:54:28] "GET /style.css HTTP/1.1" 200 - 0.0014 2011-05-18T08:54:28+00:00 app[web.1]: 62.244.82.72 - - [18/May/2011 01:54:28] "GET /favicon.ico HTTP/1.1" 404 18 0.0008 2011-05-18T08:54:28+00:00 heroku[router]: GET pxlc.heroku.com/favicon.ico dyno=web.1 queue=0 wait=0ms service=1ms bytes=313 2011-05-18T08:54:28+00:00 heroku[router]: GET pxlc.heroku.com/favicon.ico dyno=web.1 queue=0 wait=0ms service=4ms bytes=313 2011-05-18T08:54:28+00:00 app[web.1]: 62.244.82.72 - - [18/May/2011 01:54:28] "GET /favicon.ico HTTP/1.1" 404 18 0.0008 2011-05-18T08:54:28+00:00 app[web.1]: 62.244.82.72 - - [18/May/2011 01:54:28] "GET /favicon.ico HTTP/1.1" 404 18 0.0008 2011-05-18T08:54:28+00:00 heroku[router]: GET pxlc.heroku.com/favicon.ico dyno=web.1 queue=0 wait=0ms service=1ms bytes=313 2011-05-18T02:55:23-07:00 heroku[web.1]: Idling 2011-05-18T02:55:33-07:00 heroku[web.1]: State changed from up to down 2011-05-18T09:55:34+00:00 heroku[web.1]: Stopping process with SIGTERM 2011-05-18T09:55:34+00:00 app[web.1]: >> Stopping ... 2011-05-18T09:55:34+00:00 heroku[web.1]: Process exited 2011-05-18T07:23:10-07:00 heroku[web.1]: State changed from created to starting 2011-05-18T14:23:12+00:00 heroku[web.1]: Starting process with command: `thin -p 20560 -e production -R /home/heroku_rack/heroku.ru start` 2011-05-18T14:23:13+00:00 app[web.1]: >> Thin web server (v1.2.6 codename Crazy Delicious) 2011-05-18T14:23:13+00:00 app[web.1]: >> Maximum connections set to 1024 2011-05-18T14:23:13+00:00 app[web.1]: >> Listening on 0.0.0.0:20560, CTRL+C to stop 2011-05-18T07:23:13-07:00 heroku[web.1]: State changed from starting to up 2011-05-18T14:23:14+00:00 app[web.1]: 12.183.19.10 - - [18/May/2011 07:23:14] "GET / HTTP/1.1" 200 293 0.0018 2011-05-18T14:23:14+00:00 heroku[router]: GET pxlc.heroku.com/ dyno=web.1 queue=0 wait=0ms service=7ms bytes=565 2011-05-18T14:23:14+00:00 app[web.1]: 12.183.19.10 - - [18/May/2011 07:23:14] "GET /style.css HTTP/1.1" 200 - 0.0015 2011-05-18T14:23:14+00:00 heroku[router]: GET pxlc.heroku.com/style.css dyno=web.1 queue=0 wait=0ms service=2ms bytes=269 2011-05-18T14:23:14+00:00 app[web.1]: 12.183.19.10 - - [18/May/2011 07:23:14] "GET /favicon.ico HTTP/1.1" 404 18 0.0009 2011-05-18T14:23:14+00:00 heroku[router]: GET pxlc.heroku.com/favicon.ico dyno=web.1 queue=0 wait=0ms service=2ms bytes=313 2011-05-18T08:24:03-07:00 heroku[web.1]: Idling 2011-05-18T08:24:07-07:00 heroku[web.1]: State changed from up to down 2011-05-18T15:24:07+00:00 heroku[web.1]: Stopping process with SIGTERM 2011-05-18T15:24:07+00:00 app[web.1]: >> Stopping ... 2011-05-18T17:34:27-07:00 heroku[web.1]: Unidling 2011-05-18T17:34:28-07:00 heroku[web.1]: State changed from created to starting 2011-05-19T00:34:29+00:00 heroku[web.1]: Starting process with command: `thin -p 57621 -e production -R /home/heroku_rack/heroku.ru start` 2011-05-18T17:34:31-07:00 heroku[web.1]: State changed from starting to up 2011-05-19T00:34:32+00:00 heroku[router]: GET pxlc.heroku.com/ dyno=web.1 queue=0 wait=0ms service=5ms bytes=565 2011-05-19T00:34:32+00:00 app[web.1]: 97.83.58.74 - - [18/May/2011 17:34:32] "GET / HTTP/1.1" 200 293 0.0016 2011-05-19T00:34:32+00:00 app[web.1]: 97.83.58.74 - - [18/May/2011 17:34:32] "GET /style.css HTTP/1.1" 200 - 0.0011 2011-05-19T00:34:32+00:00 heroku[router]: GET pxlc.heroku.com/style.css dyno=web.1 queue=0 wait=0ms service=2ms bytes=269 2011-05-19T00:34:34+00:00 heroku[router]: GET pxlc.heroku.com/favicon.ico dyno=web.1 queue=0 wait=0ms service=4ms bytes=313 2011-05-19T00:34:34+00:00 app[web.1]: 97.83.58.74 - - [18/May/2011 17:34:34] "GET /favicon.ico HTTP/1.1" 404 18 0.0007 2011-05-18T18:35:48-07:00 heroku[web.1]: Idling 2011-05-18T18:35:51-07:00 heroku[web.1]: State changed from up to down

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• ASP.Net MVC 1.0 Web Hosting

  - by Saravanan I M

  I am developing a website using ASP.Net MVC 1.0. Can i host that website on a server having ASP.Net 2.0? Because my hosting provider supports only ASP.Net 2.0. Does anyone know how to host a website developed using ASP.Net MVC 1.0 in a web server supports ASP.Net 2.0

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• Using transactions with LINQ-to-SQL

  - by Jalpesh P. Vadgama

  Today one of my colleague asked that how we can use transactions with the LINQ-to-SQL Classes when we use more then one entities updated at same time. It was a good question. Here is my answer for that.For ASP.NET 2.0  or higher version have a new class called TransactionScope which can be used to manage transaction with the LINQ. Let’s take a simple scenario we are having a shopping cart application in which we are storing details or particular order placed into the database using LINQ-to-SQL. There are two tables Order and OrderDetails which will have all the information related to order. Order will store particular information about orders while OrderDetails table will have product and quantity of product for particular order.We need to insert data in both tables as same time and if any errors comes then it should rollback the transaction. To use TransactionScope in above scenario first we have add a reference to System.Transactions like below. After adding the transaction we need to drag and drop the Order and Order Details tables into Linq-To-SQL Classes it will create entities for that. Below is the code for transaction scope to use mange transaction with Linq Context. MyContextDataContext objContext = new MyContextDataContext(); using (System.Transactions.TransactionScope tScope = new System.Transactions.TransactionScope(TransactionScopeOption.Required)) { objContext.Order.InsertOnSubmit(Order); objContext.OrderDetails.InsertOnSumbit(OrderDetails); objContext.SubmitChanges(); tScope.Complete(); } Here it will commit transaction only if using blocks will run successfully. Hope this will help you. Technorati Tags: Linq,Transaction,System.Transactions,ASP.NET

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• New Features in ASP.NET Web API 2 - Part I

  - by dwahlin

  I’m a big fan of ASP.NET Web API. It provides a quick yet powerful way to build RESTful HTTP services that can easily be consumed by a variety of clients. While it’s simple to get started using, it has a wealth of features such as filters, formatters, and message handlers that can be used to extend it when needed. In this post I’m going to provide a quick walk-through of some of the key new features in version 2. I’ll focus on some two of my favorite features that are related to routing and HTTP responses and cover additional features in a future post.   Attribute Routing Routing has been a core feature of Web API since it’s initial release and something that’s built into new Web API projects out-of-the-box. However, there are a few scenarios where defining routes can be challenging such as nested routes (more on that in a moment) and any situation where a lot of custom routes have to be defined. For this example, let’s assume that you’d like to define the following nested route:   /customers/1/orders   This type of route would select a customer with an Id of 1 and then return all of their orders. Defining this type of route in the standard WebApiConfig class is certainly possible, but it isn’t the easiest thing to do for people who don’t understand routing well. Here’s an example of how the route shown above could be defined:   public static class WebApiConfig { public static void Register(HttpConfiguration config) { config.Routes.MapHttpRoute( name: "CustomerOrdersApiGet", routeTemplate: "api/customers/{custID}/orders", defaults: new { custID = 0, controller = "Customers", action = "Orders" } ); config.Routes.MapHttpRoute( name: "DefaultApi", routeTemplate: "api/{controller}/{id}", defaults: new { id = RouteParameter.Optional } ); GlobalConfiguration.Configuration.Formatters.Insert(0, new JsonpFormatter()); } } .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; }   With attribute based routing, defining these types of nested routes is greatly simplified. To get started you first need to make a call to the new MapHttpAttributeRoutes() method in the standard WebApiConfig class (or a custom class that you may have created that defines your routes) as shown next:   public static class WebApiConfig { public static void Register(HttpConfiguration config) { // Allow for attribute based routes config.MapHttpAttributeRoutes(); config.Routes.MapHttpRoute( name: "DefaultApi", routeTemplate: "api/{controller}/{id}", defaults: new { id = RouteParameter.Optional } ); } } Once attribute based routes are configured, you can apply the Route attribute to one or more controller actions. Here’s an example:   [HttpGet] [Route("customers/{custId:int}/orders")] public List<Order> Orders(int custId) { var orders = _Repository.GetOrders(custId); if (orders == null) { throw new HttpResponseException(new HttpResponseMessage(HttpStatusCode.NotFound)); } return orders; }   This example maps the custId route parameter to the custId parameter in the Orders() method and also ensures that the route parameter is typed as an integer. The Orders() method can be called using the following route: /customers/2/orders   While this is extremely easy to use and gets the job done, it doesn’t include the default “api” string on the front of the route that you might be used to seeing. You could add “api” in front of the route and make it “api/customers/{custId:int}/orders” but then you’d have to repeat that across other attribute-based routes as well. To simply this type of task you can add the RoutePrefix attribute above the controller class as shown next so that “api” (or whatever the custom starting point of your route is) is applied to all attribute routes: [RoutePrefix("api")] public class CustomersController : ApiController { [HttpGet] [Route("customers/{custId:int}/orders")] public List<Order> Orders(int custId) { var orders = _Repository.GetOrders(custId); if (orders == null) { throw new HttpResponseException(new HttpResponseMessage(HttpStatusCode.NotFound)); } return orders; } }   There’s much more that you can do with attribute-based routing in ASP.NET. Check out the following post by Mike Wasson for more details.   Returning Responses with IHttpActionResult The first version of Web API provided a way to return custom HttpResponseMessage objects which were pretty easy to use overall. However, Web API 2 now wraps some of the functionality available in version 1 to simplify the process even more. A new interface named IHttpActionResult (similar to ActionResult in ASP.NET MVC) has been introduced which can be used as the return type for Web API controller actions. To return a custom response you can use new helper methods exposed through ApiController such as: Ok NotFound Exception Unauthorized BadRequest Conflict Redirect InvalidModelState Here’s an example of how IHttpActionResult and the helper methods can be used to cleanup code. This is the typical way to return a custom HTTP response in version 1:   public HttpResponseMessage Delete(int id) { var status = _Repository.DeleteCustomer(id); if (status) { return new HttpResponseMessage(HttpStatusCode.OK); } else { throw new HttpResponseException(HttpStatusCode.NotFound); } } With version 2 we can replace HttpResponseMessage with IHttpActionResult and simplify the code quite a bit:   public IHttpActionResult Delete(int id) { var status = _Repository.DeleteCustomer(id); if (status) { //return new HttpResponseMessage(HttpStatusCode.OK); return Ok(); } else { //throw new HttpResponseException(HttpStatusCode.NotFound); return NotFound(); } } You can also cleanup post (insert) operations as well using the helper methods. Here’s a version 1 post action:   public HttpResponseMessage Post([FromBody]Customer cust) { var newCust = _Repository.InsertCustomer(cust); if (newCust != null) { var msg = new HttpResponseMessage(HttpStatusCode.Created); msg.Headers.Location = new Uri(Request.RequestUri + newCust.ID.ToString()); return msg; } else { throw new HttpResponseException(HttpStatusCode.Conflict); } } This is what the code looks like in version 2:   public IHttpActionResult Post([FromBody]Customer cust) { var newCust = _Repository.InsertCustomer(cust); if (newCust != null) { return Created<Customer>(Request.RequestUri + newCust.ID.ToString(), newCust); } else { return Conflict(); } } More details on IHttpActionResult and the different helper methods provided by the ApiController base class can be found here. Conclusion Although there are several additional features available in Web API 2 that I could cover (CORS support for example), this post focused on two of my favorites features. If you have .NET 4.5.1 available then I definitely recommend checking the new features out. Additional articles that cover features in ASP.NET Web API 2 can be found here.

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• Keyboard locking up in Visual Studio 2010

  - by Jim Wang

  One of the initiatives I’m involved with on the ASP.NET and Visual Studio teams is the Tactical Test Team (TTT), which is a group of testers who dedicate a portion of their time to roaming around and testing different parts of the product.  What this generally translates to is a day and a bit a week helping out with areas of the product that have been flagged as risky, or tackling problems that span both ASP.NET and Visual Studio.  There is also a separate component of this effort outside of TTT which is to help with customer scenarios and design. I enjoy being on TTT because it allows me the opportunity to look at the entire product and gain expertise in a wide range of areas.  This week, I’m looking at Visual Studio 2010 performance problems, and this gem with the keyboard in Visual Studio locking up ended up catching my attention. First of all, here’s a link to one of the many Connect bugs describing the problem: Microsoft Connect I like this problem because it really highlights the challenges of reproducing customer bugs.  There aren’t any clear steps provided here, and I don’t know a lot about your environment: not just the basics like our OS version, but also what third party plug-ins or antivirus software you might be running that might contribute to the problem.  In this case, my gut tells me that there is more than one bug here, just by the sheer volume of reports.  Here’s another thread where users talk about it: Microsoft Connect The volume and different configurations are staggering.  From a customer perspective, this is a very clear cut case of basic functionality not working in the product, but from our perspective, it’s hard to find something reproducible: even customers don’t quite agree on what causes the problem (installing ReSharper seems to cause a problem…or does it?). So this then, is the start of a QA investigation. If anybody has isolated repro steps (just comment on this post) that they can provide this will immensely help us nail down the issue(s), but I’ll be doing a multi-part series on my progress and methodologies as I look into the problem.

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• How to pass value from child window to parent window without refreshing the page using MasterPage

  - by Suthish Nair

  Parent Window (1.aspx) <asp:Content ID="Content1" ContentPlaceHolderID="head" Runat="Server"> <script type ="text/javascript"> function popup() { window.open('2.aspx', '', "height=500, width=500,resizable=no, toolbar =no"); } </script> </asp:Content> <asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server"> Text Box1:&nbsp;<asp:TextBox ID...(read more)

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• Organizing ASP.Net Single Page Application with Nancy

  - by OnesimusUnbound

  As a personal project, I'm creating a single page, asp.net web application using Nancy to provide RESTful services to the single page. Due to the complexity of the single page, particularly the JavaScripts used, I've think creating a dedicated project for the client side of web development and another for service side will organize and simplify the development. solution | +-- web / client side (single html page, js, css) | - contains asp.net project, and nancy library | to host the modules in application project folder | +-- application / service (nancy modules, bootstrap for other layer) | . . . and other layers (three tier, domain driven, etc) . Is this a good way of organizing a complex single page application? Am I over-engineering the web app, incurring too much complexity?

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• ASP.NET: Serializing and deserializing JSON objects

  - by DigiMortal

  ASP.NET offers very easy way to serialize objects to JSON format. Also it is easy to deserialize JSON objects using same library. In this posting I will show you how to serialize and deserialize JSON objects in ASP.NET. All required classes are located in System.Servicemodel.Web assembly. There is namespace called System.Runtime.Serialization.Json for JSON serializer. To serialize object to stream we can use the following code. var serializer = new DataContractJsonSerializer(typeof(MyClass)); serializer.WriteObject(myStream, myObject); To deserialize object from stream we can use the following code. CopyStream() is practically same as my Stream.CopyTo() extension method. var serializer = new DataContractJsonSerializer(typeof(MyClass));   using(var stream = response.GetResponseStream()) using (var ms = new MemoryStream()) {     CopyStream(stream, ms);     results = serializer.ReadObject(ms) as MyClass; } Why I copied data from response stream to memory stream? Point is simple – serializer uses some stream features that are not supported by response stream. Using memory stream we can deserialize object that came from web.

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• Using Validation Groups Inside ASP.NET User Controls

  - by bipinjoshi

  Validation groups allow you to validate data entry controls in groups. Server controls such as validation controls, Button and TextBox have ValidationGroup property that takes a string value. All the server controls having the same ValidationGroup value act as one validation group. Validation groups come handy in situations where you wish to validate only a small set of controls from many controls housed on a Web Form. Using validation groups is quite easy and straightforward. However, if you have a validation group inside a user control and there are more than one user control instances on a Web Form you face some problem.http://www.binaryintellect.net/articles/13427d3d-1f98-4dc0-849b-72e95b8b66a2.aspx 

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• What do you do about content when someone asks you to build a website

  - by Jon

  I am an experienced asp.net developer and asp.net mvc and I have my own CMS that I have written but starting to think there should be another approach. When someone asks you to develop them a website how do you develop it so that they can add pictures,slideshows, content, news items, diary events. On a side note do you give them a design for the home page and inner page and thats it. I'm just thinking if they turn around and say 6 months down the line I want a jquery slideshow on the right hand side of this page how do you or CMS's handle it?

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• ASP and Windows User Logon

  - by Poku

  Hey, I want to use the Windows logon information to check if a user can use my "classic asp" site. So if the user is logon at a certain Windows Domain network he/she can enter the site and i can use this persons Windows logon information on my asp site. I know its possible with ASP.NET but is it also possible with "classic asp", if yes, how?

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