Entries tagged with .net 3.5 - Channel 9

endpoint.tv Screencast - Implementing the CourseFeed service in Litware Training

ksharkey — Thu, 13 Aug 2009 19:03:00 GMT

In this short video, Ben Dewey, from twentysix New York, looks at the code for implementing the CourseFeed service in the LitWare Training sample mashup app, which is implemented as an AtomPub feed using WCF REST Starter Kit Preview 2.

For additional information on WCF REST capabilities, please check out the REST in WCF Dev Center on MSDN and the .NET Endpoint team blog.

endpoint.tv Screencast - Overview of Litware Training

ksharkey — Thu, 13 Aug 2009 19:00:00 GMT

In this short video, Ben Dewey, from twentysix New York, gives an overview of the functionality in the LitWare Training sample mashup app built with WCF REST Starter Kit Preview 2. Later videos will drill into specific features and the code.

For additional information on WCF REST capabilities, please check out the REST in WCF Dev Center on MSDN and the .NET Endpoint team blog.

geekSpeak Recording - WPF for the Business Programmer with Paul Sheriff

Brian Johnson — Thu, 30 Apr 2009 18:40:00 GMT

Windows Presentation Foundation, is it really for business applications? Why would you choose this over Windows Forms? In this geekSpeak, we'll chat with industry guru and Microsoft Regional Director Paul Sheriff about the reasons why you would choose to use WPF over Windows Forms, and when you might not. Paul will show some concrete examples that illustrate how much easier it is to do certain tasks in WPF. Your hosts for this geekSpeak are Glen Gordon and Lynn Langit.

The geekSpeak webcast series brings you industry experts in a "talk-radio" format hosted by developer evangelists from Microsoft. These experts share their knowledge and experience about a particular developer technology and are ready to answer your questions in real time during the webcast. To ask a question in advance of the live webcast, or for post-show resources, be sure to visit the geekSpeak blog.

Northeast Roadshow - Services in Workflow Foundation

Brian Johnson — Tue, 14 Apr 2009 12:52:00 GMT

Windows Workflow Foundation (WF) is the unsung hero of the .NET 3.0 release. With Workflow Foundation you can model business processes as sequential flows and state machines at a level of abstraction that brings both the developer and the business analyst in on the conversation.

After an initial overview of WF, this session uses a coffee shop metaphor to dive deeper into the use of local services (via the the CallExternalMethod and HandleExternalEvent activities) and external services (via the Send and Receive activities introduced in .NET 3.5).

You can find slides and samples from the Northeast Roadshow events at the Northeast Roadshow Code Gallery Site.

Northeast Roadshow - ASP.NET Dynamic Data

Brian Johnson — Mon, 13 Apr 2009 13:42:00 GMT

In this screencast, Jim O’Neil, Developer Evangelist, takes us on a tour of ASP.NET Dynamic Data, introduced with the .NET Framework 3.5 SP1.

Dynamic Data leverages LINQ to SQL and the ADO.Net Entity Framework to provide a scaffolding approach to quickly build a CRUD (Create-Read-Update-Delete) enabled web site. Through customizable page and control templates that interact with the data model, you can build quick-and-dirty data entry sites or customized, branded extensions to existing sites (and anything in between!).

You can find the samples and slides from Jim's events here.

endpoint.tv Screencast - Processing Message Content using HttpClient class

Cliff Simpkins — Mon, 30 Mar 2009 15:00:00 GMT

In this short video, CSD MVP Aaron Skonnard from PluralSight guides the viewer through different techniques for processing messages using the new HttpClient class that ships with the new WCF REST Starter Kit Preview 2.

In this screencast, Aaron builds on the simple Twitter command shell application started in the previous HttpClient screencast and used through this series. To process the messages (both XML and JSON), Aaron layers a data contract over the incoming message, to allow the .NET developer to work with the content in a strong typed, dot-notation fashion. After demonstrating how to hand-craft the .NET objects, Aaron demonstrates how to use the new 'Paste XML as Serializable Type' command to automatically generate the .NET classes from a sample Twitter XML response.

For additional information on the WCF REST Starter Kit, please check out the REST in WCF Dev Center on MSDN and the .NET Endpoint team blog. For more information on classes offered by Aaron and the PluralSight folks, check out their catalog of instructor led courses and new online courses that cover a variety of Microsoft technologies, ranging from .NET v3.5 to WSS to BizTalk server.

endpoint.tv Screencast - HttpClient Query String and Form Input Management

Cliff Simpkins — Mon, 23 Mar 2009 15:00:00 GMT

In this short video, CSD MVP Aaron Skonnard from PluralSight guides the viewer on how to manage query string and form input while consuming REST services.

In this screencast, Aaron builds on the simple Twitter command shell application presented in the previous HttpClient screencast. Aaron modifies the previous code to build a query string on the fly using the new HttpQueryString class, adding information provided by the user at runtime. And to perform a status update to Twitter, Aaron uses the new HttpUrlEncodedForm class to process a form POST command to the Twitter service.

For additional information on the WCF REST Starter Kit, please check out the REST in WCF Dev Center on MSDN and the .NET Endpoint team blog. For more information on classes offered by Aaron and the PluralSight folks, check out their catalog of instructor led courses and new online courses that cover a variety of Microsoft technologies, ranging from .NET v3.5 to WSS to BizTalk server.

endpoint.tv Screencast - Consuming REST services with HttpClient

Cliff Simpkins — Wed, 18 Mar 2009 15:00:00 GMT

In this short video, CSD MVP Aaron Skonnard from PluralSight demonstrates how to consume REST services using the new HttpClient class that ships with the WCF REST Starter Kit, Preview 2.

For the REST service to consume, Aaron uses the Twitter service to interact with Twitter status information, and how to associates Twitter credentials with the requests to issue requests against the Twitter service that require authentication information.

For additional information on the WCF REST Starter Kit, please check out the REST in WCF Dev Center on MSDN and the .NET Endpoint team blog. For more information on classes offered by Aaron and the PluralSight folks, check out their catalog of instructor led courses and new online courses that cover a variety of Microsoft technologies, ranging from .NET v3.5 to WSS to BizTalk server.

endpoint.tv Screencast - Getting started with the WCF REST Starter Kit Preview 2

Cliff Simpkins — Tue, 17 Mar 2009 15:00:00 GMT

In this short video, CSD MVP Aaron Skonnard from PluralSight guides the viewer through the Preview 2 release of the WCF REST Starter Kit.

Aaron downloads and installs the kit, and discusses the new features and capabilities in the second preview release. Aaron discusses the new assemblies in the new preview and quickly creates a new WCF REST singleton service project to show off the starter projects that come with the starter kit, and how to use the new REST client capabilities to quickly consume REST-ful services.

For additional information on the WCF REST Starter Kit, please check out the REST in WCF Dev Center on MSDN and the .NET Endpoint team blog. For more information on classes offered by Aaron and the PluralSight folks, check out their catalog of instructor led courses and new online courses that cover a variety of Microsoft technologies, ranging from .NET v3.5 to WSS to BizTalk server.

deCast - Entity Framework Modeling: Importing Select Stored Procedures

Rob Bagby — Fri, 13 Mar 2009 12:32:00 GMT

The Entity Framework supports both select and action stored procedures. We covered action stored procedures in a previous screencast. In this screencast, Rob Bagby will illustrate how to import select stored procedures. However, the entity framework goes beyond simply importing and executing stored procedures. You have the ability to map the result to an entity type which gives you some unique abilities. We will explore some of these abilities in this screencast. You can view a blog post on this subject here.

deCast - Entity Framework Modeling: Mapping Action Stored Procedures

Rob Bagby — Thu, 12 Mar 2009 18:28:00 GMT

For years, you have heard about the benefits of using Stored Procedures to access your database. In this screencast, Rob Bagby will illustrate the default behavior of the Entity Framework when dealing with actions such as insert, update and delete. Rob will then discuss some concerns you may have and how you can address these by mapping in action stored procedures. You can read the blog post about this subject here. Rob will illustrate how to import select stored procedures in another deCast.

deCast - Entity Framework Modeling: Implementing Table Per Hierarchy

Rob Bagby — Wed, 11 Mar 2009 15:57:00 GMT

The Entity Framework provides the ability to model rich conceptual layers that meet the needs of our applications. One such model is table-per-hierarchy inheritance. In this model, the data for a hierarchy are stored in one table. This table has a discriminator column that indicates the "type" of each record. In this screencast, Rob Bagby will illustrate how to implement table-per-hierarchy inheritance with the entity framework. Click here to see Rob's blog post on the same subject.

endpoint.tv Screencast - Declarative XAML Workflows in WF 3.5

Cliff Simpkins — Wed, 11 Mar 2009 15:00:00 GMT

Welcome to the latest video in the weekly WF/WCF Screencast series.

In this short video, CSD MVP Matt Milner from PluralSight guides the viewer through how to use declarative XAML workflows.

In this screencast, Matt demonstrates how to build and run your workflows in XAML; allowing you to express your workflow completely in this XML-based format. He starts off by creating a new WF workflow using the XAML workflow project file, and walks the viewer through the files that are created by this VS project, and how to remove the code behind (.cs file) so that your workflow project will be based soley on a XAML file to explain it. We then work with the workflow in both the XAML/text editor and the WF designer to add the business logic, modify the .NET application to read in and process the XAML file, and run the workflow.

Along the way, Matt then delves into the created XAML file to examine and explain the structure and used namespaces in that XAML file. Matt also explains the impact of starting XAML only workflows - how and why we need to load the XAML file differently, and some additional exception handling that you should add to handle the runtime exceptions that can come with XAML-only workflows (because the workflow isn't being compiled, the validation is happening at runtime).

For additional information on WF, please check out the WF Dev Center on MSDN and the .NET Endpoint team blog. For more information on classes offered by Aaron and the PluralSight folks, check out their catalog of instructor led courses and new online courses that cover a variety of Microsoft technologies, ranging from .NET v3.5 to WSS to BizTalk server.

deCast - Entity Framework Modeling: Implementing Entity Splitting

Rob Bagby — Mon, 09 Mar 2009 13:22:00 GMT

The Entity Framework provides the ability to model rich conceptual layers that meet the needs of our applications. One such model is Entity Splitting. In this model, a single entity in the conceptual layer is mapped to multiple tables in the store. In this screencast, Rob Bagby will illustrate how to implement entity splitting with the entity framework. Click here to see Rob's blog post on the same subject.

deCast - Entity Framework Modeling: Implementing Table Per Type

Rob Bagby — Fri, 06 Mar 2009 14:47:00 GMT

The Entity Framework provides the ability to model rich conceptual layers that meet the needs of our applications. One such model is table-per-type inheritance. In this model, each entity is mapped to a distinct table in the store. Each table contains all of the properties for the entity, as well as a key that maps ultimately to its' root table / entity. In this screencast, Rob Bagby will illustrate how to implement table-per-type inheritance with the entity framework. Click here to see Rob's blog post on the same subject.

endpoint.tv Screencast - Using the Listen Activity in WF 3.5

Cliff Simpkins — Wed, 04 Mar 2009 16:00:00 GMT

Welcome to the latest video in the weekly WF/WCF Screencast series.

In this short video, CSD MVP Matt Milner from PluralSight guides the viewer through how to use the listen activity in Windows Workflow Foundation (WF) to listen for multiple events.

Matt starts with a basic sequential workflow console project and a couple custom activities. He then builds out a workflow that waits for input from the user (using a read line activity), and also implements a timeout (using a delay activity) that allows the workflow author to place a limit around how long a WF workflow will wait for input.

Along the way, Matt explains the user how the use of IEvent activity interface allows custom activities to subscribe to events that the listen activity can pass along. Also covered is how to catch exceptions that may arise after using the delay activity to 'timeout' the WF workflow.

For additional information on WF, please check out the WF Dev Center on MSDN and the .NET Endpoint team blog. For more information on classes offered by Aaron and the PluralSight folks, check out their catalog of instructor led courses and new online courses that cover a variety of Microsoft technologies, ranging from .NET v3.5 to WSS to BizTalk server.

endpoint.tv Screencast - Fault Handling in WF

Cliff Simpkins — Wed, 25 Feb 2009 16:00:00 GMT

Welcome to the latest video in the weekly WF/WCF Screencast series.

In this short video, CSD MVP Matt Milner from PluralSight guides the viewer through how fault handling works in Windows Workflow Foundation (WF) 3.5.

In this screencast, Matt starts with an existing workflow application (a console application), and adds a custom activity that throws an exception. Initially, Matt demonstrates how this is thrown and it's effect on the workflow instance. He then demonstrates how to add fault handlers into a WF sequence to handle faults in a more graceful manner - very similar to the C# try/catch pattern. Matt also explains how exceptions 'bubble up' within a WF workflow - very similar to standard .NET applications.

For additional information on WF, please check out the WF Dev Center on MSDN and the .NET Endpoint team blog. For more information on classes offered by Aaron and the PluralSight folks, check out their catalog of instructor led courses and new online courses that cover a variety of Microsoft technologies, ranging from .NET v3.5 to WSS to BizTalk server.

endpoint.tv Screencast - AJAX-Enabling your WCF Service

Cliff Simpkins — Wed, 18 Feb 2009 16:00:00 GMT

Welcome to the latest video in the weekly WF/WCF Screencast series.

In this short video, CSD MVP Aaron Skonnard from PluralSight guides the viewer through how to AJAX-enable your WCF service, enabling you to easily invoke your WCF service from your AJAX applications.

For additional information on WCF, please check out the WCF Dev Center on MSDN and the .NET Endpoint team blog. For more information on classes offered by Aaron and the PluralSight folks, check out their catalog of instructor led courses and new online courses that cover a variety of Microsoft technologies, ranging from .NET v3.5 to WSS to BizTalk server.

endpoint.tv Screencast - Calling RESTful Services in WCF

Cliff Simpkins — Wed, 11 Feb 2009 16:00:00 GMT

Welcome to the latest video in the weekly WF/WCF Screencast series.

In this short video, CSD MVP Aaron Skonnard from PluralSight guides the viewer through how to call RESTful services using WCF in the client application.

For additional information on WCF, please check out the WCF Dev Center on MSDN and the .NET Endpoint team blog. For more information on classes offered by Aaron and the PluralSight folks, check out their catalog of instructor led courses and new online courses that cover a variety of Microsoft technologies, ranging from .NET v3.5 to WSS to BizTalk server.

endpoint.tv Screencast - Working with Transactions in WF

Cliff Simpkins — Wed, 04 Feb 2009 16:00:00 GMT

Welcome to the latest video in the weekly WF/WCF Screencast series.

In this short video, CSD MVP Matt Milner from PluralSight guides the viewer through how to work with Windows Workflow Foundation (WF) transactions, from the simple use case of scoping activities to participate in a transaction to the more advanced scenario of queue up work to participate in a transaction from an activity or the WF host application.

In this screencast, Matt demonstrates how to use the transaction scope WF activity and set the necessary properties on the activity. He then dives into how transactions work in WF to guarantee consistency in the activities, the WF workflow, and the overall transaction that WF is participating in. Along the way, Matt uses console outputs to demonstrate the execution order of activites and the transaction to visually demonstrate what the runtime is actually doing once you execute the code.

For additional information on WF, please check out the WF Dev Center on MSDN and the .NET Endpoint team blog. For more information on classes offered by Aaron and the PluralSight folks, check out their catalog of instructor led courses and new online courses that cover a variety of Microsoft technologies, ranging from .NET v3.5 to WSS to BizTalk server.

endpoint.tv Screencast - Using the WF Replicator Activity

Cliff Simpkins — Wed, 28 Jan 2009 16:00:00 GMT

Welcome to the latest video in the weekly WF/WCF Screencast series.

In this short video, CSD MVP Matt Milner from PluralSight guides the viewer through how to using the WF replicator activity to add more advanced flow control capabilities to your WF workflows.

In this screencast, Matt introduces the replicator activity, which allows you to implement ForEach-like semantics on workflow data. He adds the replicator to an existing workflow, binds the activity to the incoming data, and demonstrates how the replicator activity runs child activities. For this screencast, Matt uses an example sending e-mail notifications to persons in a data list.

While explaining how the replicator works, Matt explains a few aspects of the replicator activity: (a) how to interact with child activities within the replicators events, (b) how to set the activity execution type to have control over how the iterations are executed (i.e., sequence or parallel), and (c) how to use conditions to set a replicator stopping point.

For additional information on WF, please check out the WF Dev Center on MSDN and the .NET Endpoint team blog. For more information on classes offered by Aaron and the PluralSight folks, check out their catalog of instructor led courses and new online courses that cover a variety of Microsoft technologies, ranging from .NET v3.5 to WSS to BizTalk server.

endpoint.tv Screencast - Working with WF Tracking Profiles

Cliff Simpkins — Wed, 21 Jan 2009 16:00:00 GMT

Welcome to the latest video in the weekly WF/WCF Screencast series.

In this video, CSD MVP Matt Milner from PluralSight guides the viewer through how to work with WF tracking profiles (both SQL and custom tracking services). In last week's screencast, Matt introduced you to tracking services in WF 3.5. This week, Matt expands on tracking profiles, detailing out to create a profile via code and SDK sample apps, serialize the profile out for use in applications, and how to use the profiles within your workflow activities and workflows.

To build the profile, Matt demonstrates how to create a tracking profile two ways: by code and using Workflow Tracking Profile Designer from the WF SDK. To build the tracking profile via code, Matt introduces the concepts of workflow track points, workflow tracking locations, and how to use workflow tracking events to specify the details that you want to track. He also demonstrates how to detail which activity types you wish to track. Matt also opens up a serialized profile XML file and walks the viewer through how the profile is stored. For the Workflow Tracking Profile Designer, Matt demonstrates how the app generates the same CML file, but also how it allows you to commit the tracking profile to a SQL database.

Finally, Matt demonstrates how to use tracking in your activities and workflows to track data at runtime. He demonstrates how to send data into the tracking provider from WF activities, and how to use the Workflow Monitor SDK sample application to pull and visually display the tracked data.

For additional information on WF, please check out the WF Dev Center on MSDN and the .NET Endpoint team blog. For more information on classes offered by Aaron and the PluralSight folks, check out their catalog of instructor led courses and new online courses that cover a variety of Microsoft technologies, ranging from .NET v3.5 to WSS to BizTalk server.

endpoint.tv Screencast - Using SQL Tracking Services with WF

Cliff Simpkins — Wed, 14 Jan 2009 16:00:00 GMT

Welcome to the latest video in the weekly WF/WCF Screencast series.

In this short video, CSD MVP Matt Milner from PluralSight guides the viewer through how to add tracking capabilities to your WF using SQL Tracking Services.

In this screencast, Matt demonstrates how to add SQL Server workflow tracking services. He first sets up the SQL Server database/tables via Powershell, and how to add (and configure)the tracking service to the workflow runtime within the application. Once added, Matt demonstrates how to use the query API to print basic workflow information back out to a command-line Console.

As we add the service to the application, Matt also discusses the various persistance service settings that are available, such as data partitioning and profile configuration.

For additional information on WF, please check out the WF Dev Center on MSDN and the .NET Endpoint team blog. For more information on classes offered by Aaron and the PluralSight folks, check out their catalog of instructor led courses and new online courses that cover a variety of Microsoft technologies, ranging from .NET v3.5 to WSS to BizTalk server.

endpoint.tv Screencast - Building RESTful Services with WCF (Part 2)

Cliff Simpkins — Wed, 07 Jan 2009 16:00:00 GMT

Welcome to the latest video in the weekly WF/WCF Screencast series.

In this short video, CSD MVP Aaron Skonnard from PluralSight continues to guide the viewer through how to build a RESTful service with WCF, simplifying the IIS hosting of the service.

For additional information on WCF, please check out the WCF Dev Center on MSDN and the .NET Endpoint team blog. For more information on classes offered by Aaron and the PluralSight folks, check out their catalog of instructor led courses and new online courses that cover a variety of Microsoft technologies, ranging from .NET v3.5 to WSS to BizTalk server.

endpoint.tv Screencast - Building RESTful Services with WCF

Cliff Simpkins — Wed, 31 Dec 2008 16:00:00 GMT

Welcome to the latest video in the weekly WF/WCF Screencast series.

In this short video, CSD MVP Aaron Skonnard from PluralSight guides the viewer through how to build a RESTful service with WCF, converting a previously created WCF service to support RESTful consumption.

For additional information on WCF, please check out the WCF Dev Center on MSDN and the .NET Endpoint team blog. For more information on classes offered by Aaron and the PluralSight folks, check out their catalog of instructor led courses and new online courses that cover a variety of Microsoft technologies, ranging from .NET v3.5 to WSS to BizTalk server.