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jQuery and Microsoft	28 September 2008
jQuery is a lightweight open source JavaScript library (only 15kb in size) that in a relatively short span of time has become one of the most popular libraries on the web. A big part of the appeal of jQuery is that it allows you to elegantly (and efficiently) find and manipulate HTML elements with minimum lines of code. jQuery supports this via a nice "selector" API that allows developers to query for HTML elements, and then apply "commands" to them. One of the characteristics of jQuery commands is that they can be "chained" together - so that the result of one command can feed into another. jQuery also includes a built-in set of animation APIs that can be used as commands. The combination allows you to do some really cool things with only a few keystrokes. For example, the below JavaScript uses jQuery to find all <div> elements within a page that have a CSS class of "product", and then animate them to slowly disappear: As another example, the JavaScript below uses jQuery to find a specific <table> on the page with an id of "datagrid1", then retrieves every other <tr> row within the datagrid, and sets those <tr> elements to have a CSS class of "even" - which could be used to alternate the background color of each row: [Note: both of these samples were adapted from code snippets in the excellent jQuery in Action book] Providing the ability to perform selection and animation operations like above is something that a lot of developers have asked us to add to ASP.NET AJAX, and this support was something we listed as a proposed feature in the ASP.NET AJAX Roadmap we published a few months ago. As the team started to investigate building it, though, they quickly realized that the jQuery support for these scenarios is already excellent, and that there is a huge ecosystem and community built up around it already. The jQuery library also works well on the same page with ASP.NET AJAX and the ASP.NET AJAX Control Toolkit. Rather than duplicate functionality, we thought, wouldn't it be great to just use jQuery as-is, and add it as a standard, supported, library in VS/ASP.NET, and then focus our energy building new features that took advantage of it? We sent mail the jQuery team to gauge their interest in this, and quickly heard back that they thought that it sounded like an interesting idea too. Supporting jQuery I'm excited today to announce that Microsoft will be shipping jQuery with Visual Studio going forward. We will distribute the jQuery JavaScript library as-is, and will not be forking or changing the source from the main jQuery branch. The files will continue to use and ship under the existing jQuery MIT license. We will also distribute intellisense-annotated versions that provide great Visual Studio intellisense and help-integration at design-time. For example: and with a chained command: The jQuery intellisense annotation support will be available as a free web-download in a few weeks (and will work great with VS 2008 SP1 and the free Visual Web Developer 2008 Express SP1). The new ASP.NET MVC download will also distribute it, and add the jQuery library by default to all new projects. We will also extend Microsoft product support to jQuery beginning later this year, which will enable developers and enterprises to call and open jQuery support cases 24x7 with Microsoft PSS. Going forward we'll use jQuery as one of the libraries used to implement higher-level controls in the ASP.NET AJAX Control Toolkit, as well as to implement new Ajax server-side helper methods for ASP.NET MVC. New features we add to ASP.NET AJAX (like the new client template support) will be designed to integrate nicely with jQuery as well. We also plan to contribute tests, bug fixes, and patches back to the jQuery open source project. These will all go through the standard jQuery patch review process. Summary We are really excited to be able to partner with the jQuery team on this. jQuery is a fantastic library, and something we think can really benefit ASP.NET and ASP.NET AJAX developers. We are looking forward to having it work great with Visual Studio and ASP.NET, and to help bring it to an even larger set of developers. For more details on today's announcement, please check out John Resig's post on the jQuery team blog. Scott Hanselman is also about to post a nice tutorial that shows off integrating jQuery with ASP.NET AJAX (including the new client templating engine) as well as ADO.NET Data Services (which shipped in .NET 3.5 SP1 and was previously code-named "Astoria"). Hope this helps, Scott

Silverlight 2 Release Candidate Now Available	26 September 2008
This evening we published the first public release candidate of Silverlight 2. There are still a small handful of bugs fixes that we plan to make before we finally ship. We are releasing today's build, though, so that developers can start to update their existing Silverlight Beta2 applications so that they'll work the day the final release ships, as well as to enable developers to report any last minute showstopper issues that we haven't found internally (please report any of these on the www.silverlight.net forums). Important: We are releasing only the Silverlight Developer Runtime edition (as well as the VS and Blend tools to support it) today, and are not releasing the regular end-user edition of Silverlight. This is because we want to give existing developers a short amount of time to update their applications to work with the final Silverlight 2 APIs before sites are allowed to go live with it. There are some breaking changes between Beta2 and this RC, and we want to make sure that existing sites can update to the final release quickly once the final release is out. As such, you can only use the RC for development right now - you can't go live with the new APIs until the final release is shipped (which will be soon though). You can download today's Silverlight Release Candidate and accompanying VS and Blend support for it here. Note that Expression Blend support for Silverlight 2 is now provided using Blend 2.0 SP1. You will need to install Blend 2.0 before applying the SP1 service pack that adds Silverlight 2 support. If you don't already have Blend 2.0 installed you can download a free trial of it here. Beta2->RC API Updates Today's release candidate includes a ton of bug fix and some significant performance optimization work. Today's release candidate also includes a number of final API tweaks designed to fix differences between Silverlight and the full .NET Framework. Most of these changes are relatively small (order of parameters, renames of methods/properties, movement of types across namespaces, etc) although there are a number of them. You can read this blog post and download this document to get a listing of the known API breaking changes made from the Beta2 release. We have updated the styles of the controls shipped with Silverlight, and have also modified some of the state groups and control template names they use. When upgrading from Beta2 you might find it useful to temporarily remove any custom style templates you've defined, and get your application functionality working using the RC first - and then after that works add back in the styles one style definition at a time to catch any rename/behavior change issues with them. If you find yourself stuck with an question/issue moving from Beta2 to the RC, please report it on the www.silverlight.net forums (Silverlight team members will be on there helping folks). If after a day or two you aren't getting an answer please send me email (scottgu@microsoft.com) and I can help or connect you with someone who knows the answer. New Controls Today's release candidate includes a bunch of feature additions and tweaks across Silverlight 2, as well as in the VS and Blend tools targeting it. In general you'll find a number of nice improvements across the controls, networking, data caching, layout, rendering, media stack, and other components and sub-systems. Over the next few months we will be releasing a lot of new Silverlight 2 controls (more details on these soon). Today's release candidate includes three new core controls - ComboBox, ProgressBar, and PasswordBox - that we are adding directly to the core Silverlight runtime download (which is still only 4.6MB in size, and only takes a few seconds to install): At runtime these controls by default look like: The ComboBox in Silverlight 2 supports standard DropDownList semantics. In addition to statically defining items like above, you can also use databinding with it. For example, we could define a "Person" class like below: And the add a ComboBox to a page like so: And then write the below code to databind a collection of Person objects to the ComboBox (by setting its ItemSource property): At runtime our simple app will then display the data-bound Person names (note that we set the DisplayMemberPath property on the ComboBox above to display the "Name" value from our Person objects): We could then implement a SelectionChanged event handler like below to run code when a person is selected from the ComboBox: Notice above how we can retrieve a reference to the selected "Person" object from the databound ComboBox using the ComboBox's "SelectedItem" property. We can then call the MessageBox.Show() helper method (new in the RC) to display a modal dialog box that displays some details about our selected person: New Control Skins The final release of Silverlight 2 will have a much more polished set of default control template skins than those that were in Beta1 and Beta2. Our goal with the default control templates is to have a look that is professional and attractive, can be used in the majority of applications as-is (without requiring you to author custom style templates), and which is also easily tweakable using Expression Blend. Today's RC build has skins that are close to the final look we plan to ship (there are a few final tweaks we are doing post RC on the focus color of controls, as well as to tighten up and tweak a few issues in some of the control templates). Below is the default look for the DataGrid, RadioButton, CheckBoxes, and the DatePicker controls with today's RC build: Note that the DatePicker control above allows users to type in a date (with a masked edit to ensure it is a valid date), or they can click the calendar icon to the right of the textbox and select the date using a popup Calendar control: One of the most powerful features of Silverlight and WPF, of course, is the ability for designers and developers to completely customize the look and feel of any control. This goes beyond simple styling of colors and fonts - you can literally completely change the visual UI of a control, as well as customize its behavior (for example: add animation) without writing any code. Within Expression Blend, simply right-click on any Silverlight control and choose the "Edit Control Parts" sub-menu to open and edit its control template: When in control template editing mode, you can manipulate any sub-element of a control (for example: a checkbox's inner content), as well as customize each "state" its in (notice the states pane circled in red below). This allows designers to customize what the control looks like in individual states (for example: checked, unchecked, mouseover, etc). Silverlight will then automatically handle animating the control from state to state depending on the user action: You can learn more about how Silverlight's Visual State Model works from my previous blog post here. Previous releases of Silverlight often rendered graphics on sub-pixel locations - which could cause lines and shapes to sometimes appear "fuzzy". The RC of Silverlight has a new features called "layout rounding" that causes the layout system to round the final measure of a control to an integer ("pixel snapping"), which results in crisper lines and fewer rendering artifacts. This feature is now on by default, and helps make applications look nicer. Summary The final release of Silverlight is not that far off now. It has been a pretty amazing project that has come a long way in a pretty short amount of time. If you have existing Beta2 applications, please start getting them ready for the final release - as once we release Silverlight 2, users that have existing beta releases installed will automatically be upgraded to use the final version. Testing your application out with the release candidate will ensure that you can easily update your applications and have them ready within hours of the final release. Let us know if you find issues with today's release candidate, and please make sure to post them on the forums on http://www.silverlight.net. Hope this helps, Scott

Quick Update	02 September 2008
I've received a number of (very nice) emails recently asking if I was ok - since my blog has been silent the last few weeks (and much of the summer). Just to address people's concerns - I'm alive and well. :-) I've just been on vacation the last 6 weeks, and have unfortunately not had free time to post (I've been changing a lot of diapers). I am still on vacation another week before I officially return to work. I did get a chance to write up a quick post this weekend that covers some of the new ASP.NET MVC Preview 5 features, though, that will hopefully provide some interim reading until I can resume a more regular posting schedule over the next month when I get back into the office. Thanks, Scott P.S. Somewhat to my embarrassment I started a Part1/Part2 post on "Preview 4" right before I left for vacation, and didn't have time to finish part 2 before "Preview 5" came out. I am going to post this lost segment (which covered AJAX) later this month and write it against the latest preview build. P.P.S. People often ask me whether I write my own blog. Yep - I actually really do write every single post. Hopefully my absence the last 6 weeks provides some evidence to support this. :-)

ASP.NET MVC Support with Visual Web Developer 2008 Express	02 June 2008
Last week I blogged about the ASP.NET MVC Preview 3 release. One important thing I forgot to mention about this release is that you can now use it with both Visual Studio 2008 as well as the free Visual Web Developer 2008 Express edition. The SP1 release of Visual Web Developer 2008 Express adds support for both class library projects as well as web application projects (previously only web site projects could be used with it). This new support is useful in itself, as well as in enabling both ASP.NET MVC and Silverlight project support with VWD Express. If you install the Visual Web Developer Express SP1 Beta you can start using ASP.NET MVC Preview 3 with it immediately. Important: ASP.NET MVC Preview 3 does not require SP1 to be installed if you are using Visual Studio 2008. ASP.NET MVC Preview 3 will work with both VS 2008 and VS 2008 SP1 just fine. You can learn more about the new VWD Express support for ASP.NET MVC from the VS Web Tools team blog here. This post also includes a free web download that provides ASP.NET MVC Test project support for NUnit-based unit tests. You can use these NUnit project templates with both Visual Studio 2008 as well as with Visual Web Developer Express 2008. Hope this helps, Scott

May 20th Links: ASP.NET, ASP.NET AJAX, .NET, Visual Studio, Silverlight, WPF	21 May 2008
Apologies for the sparseness of my posting the last few weeks - work and life have been busy here lately. Below is a new post in my link-listing series to help kick things up a little. Also check out my ASP.NET Tips, Tricks and Tutorials page and Silverlight Tutorials page for links to popular articles I've done myself in the past. ASP.NET Bulk Inserting Data with the ListView Control: Matt Berseth continues his awesome posts with one that shows how to handle bulk-editing of data using the ASP.NET ListView control in .NET 3.5. Master-Detail with the GridView, DetailsView, and ModalPopup Controls: Another great post from Matt that describes how to cleanly handle a common data entry scenario. Creating Great Thumbnail Images in ASP.NET: A really nice blog post by a different Matt that details an approach that generates high quality (and small) thumbnail images. Warning the User when Caps-Lock is on: Scott Mitchell has a nice article that describes how to automatically detect and warn users in login pages when the caps-lock button is on. ASP.NET Perf Issue: Large numbers of application-restarts due to virus scanners: Tess Ferrandez has a great post that details a debug session to determine why an ASP.NET application was restarting frequently (causing performance slowdowns). The issue was a virus scanner that was causing files to be constantly updated. Make sure to check out the logging code you can add to your application to identify restart causes like this. ASP.NET AJAX ASP.NET AJAX Progress Bar Control: Matt Berseth has another great article that describes his new ASP.NET AJAX Progress Bar control. Faster Page Loading By Combining Multiple JavaScript files in Batch: Omar Al Zabir (founder of PageFlakes.com and author of the great Building a Web 2.0 Portal with ASP.NET 3.5 book) has a good article that describes the performance benefit of merging multiple JavaScript file downloads. Note that .NET 3.5 SP1 will include a new script combiner feature that helps make doing this even easier. Create ASP.NET AJAX Server Controls using the ScriptControl base class: Chris Pietschmann has a nice article that talks about how to build new ASP.NET AJAX server controls by deriving from the built-in ScriptControl base class. Inline Edit Box and Postback Ritalin Beta: Dave Ward and Mike Davis have created a new CodePlex project for their popular Inline Edit Box and PostBack Ritalin ASP.NET AJAX controls. .NET 7 Ways to Simplify your code with LINQ: Igor Ostrovsky has a great blog post that talks about new code techniques you can use to improve your code using .NET 3.5 and the new language and LINQ features in it. Visual LINQ Query Builder for LINQ to SQL: Mitsu Furuta has created a cool Visual Studio designer that allows you to graphically construct LINQ to SQL queries. Also make sure to download download the latest LINQPad utility - which is invaluable for learning LINQ and trying out LINQ queries. DataContracts without Attributes (POCO support): Aaron Skonnard has a good post that talks about a nice usability change with .NET 3.5 SP1 that allows you to serialize POCO (plain old objects) using the WCF serializers. Ukadc.Diagnostics: Josh Twist pointed me at a new CodePlex project he is working on that extends the System.Diagnostics features in .NET to include richer logging features (SQL trace support, email support, etc). Visual Studio 11 More VS Short Cuts you Should Know: A great post that talks about a bunch of useful shortcuts to print out and remember when using Visual Studio. Did you know you can show extension methods in the object browser?: Sara Ford continues her excellent "Did you know" series. I confess I didn't know this one. Silverlight 50 New Silverlight 2 Beta 1 Screencasts: Mike Taulty and Mike Ormond have put together 50 nice tutorial screen-casts that cover Silverlight 2 - all in their "spare time". Wow. AutoComplete for Silverlight TextBoxes: Nikhil Kothari has a nice blog post that demonstrates how he built an auto-complete behavior control for Silverlight. Scrolling through Large Resultsets with Silverlight 2 and LINQ to SQL: The Swiss MSDN team has a nice blog post that demonstrates how to scroll through large resultsets using the Silverlight DataGrid and LINQ to SQL. IValueConverter: The Swiss Army Knife of Bindings: David Anson has a useful blog post and sample that demonstrates how to use the IValueConverter feature in Silverlight and WPF to support richer bindings against complex objects. Silverlight 2 Pie Chart: Peter McGrattan has posted a nice control and article that demonstrates how to use a new Silverlight charting control he has written. WPF WPF week on Channel9: Watch 6 great videos on Channel9. Each one includes interviews and demos with members of the WPF team talking about some of the awesome work that went into WPF 3.5 SP1 (read my blog post here for a summary of some of it). WPF Testing and Application Quality Guide: Check out the 0.2 release of a free online book being developed by Microsoft that covers how to test WPF applications. Definitely worth book-marking if you are doing WPF development. Moving Toward WPF Data Binding One Step at a Time: Josh Smith has a great article on CodeProject.com that explains WPF data binding and walksthrough how to use it. WPF 3.5 SP1 StringFormat: Lester has a nice post that describes how to use the new StringFormat feature in WPF 3.5 SP1. This makes it much easier to handle formatting of databound values. Hope this helps, Scott

Visual Studio 2008 and .NET Framework 3.5 Service Pack 1 Beta	12 May 2008
Earlier today we shipped a public beta of our upcoming .NET 3.5 SP1 and VS 2008 SP1 releases. These servicing updates provide a roll-up of bug fixes and performance improvements for issues reported since we released the products last November. They also contain a number of feature additions and enhancements that make building .NET applications better (see below for details on some of them). We plan to ship the final release of both .NET 3.5 SP1 and VS 2008 SP1 this summer as free updates. You can download and install the beta here. Important: SP1 Beta Installation Notes The SP1 beta released today is still in beta form - so you should be careful about installing it on critical machines. There are a few important SP1 Beta installation notes to be aware of: 1) If you are running Windows Vista you should make sure you have Vista SP1 installed before trying to install .NET 3.5 SP1 Beta. There are some setup issues with .NET 3.5 SP1 when running on the Vista RTM release. These issues will be fixed for the final .NET 3.5 SP1 release - until then please make sure to have Vista SP1 installed before trying to install .NET 3.5 SP1 beta. 2) If you have installed the VS 2008 Tools for Silverlight 2 Beta1 package on your machine, you must uninstall it - as well as uninstall the KB949325 update for VS 2008 - before installing VS 2008 SP1 Beta (otherwise you will get a setup failure). You can find more details on the exact steps to follow here (note: you must uninstall two separate things). It is fine to have the Silverlight 2 runtime on your machine with .NET 3.5 SP1 - the component that needs to be uninstalled is the VS 2008 Tools for Silverlight 2 package. We will release an updated VS 2008 Tools for Silverlight package in a few weeks that works with the VS 2008 SP1 beta. 3) There is a change in behavior in the .NET 3.5 SP1 beta that causes a problem with the shipping versions of Expression Blend. This behavior change is being reverted for the final .NET 3.5 SP1 release, at which time all versions of Blend will have no problems running. Until then, you need to download this recently updated version of Blend 2.5 to work around this issue. Important Update: If you previously installed a VS 2008 Hotfix, you must run the HotFix Cleanup Utility before installing the VS 2008 SP1 Beta. Click here to download and run this. Improvements for Web Development .NET 3.5 SP1 and VS 2008 SP1 contain a bunch of feature improvements targeted at web application development. The VS Web Dev Tools team has more details (including specific bug fix details) on some of the VS specific work here. Below are more details on some of the work in the web-space: ASP.NET Data Scaffolding Support (ASP.NET Dynamic Data) .NET 3.5 SP1 adds support for a rich ASP.NET data "scaffolding" framework that enables you to quickly build functional data-driven web application. With the ASP.NET Dynamic Data feature you can automatically build web UI (with full CRUD - create, read, update, delete - support) against a variety of data object models (including LINQ to SQL, LINQ to Entities, REST Services, and any other ORM or object model with a dynamic data provider). SP1 adds this new functionality to the existing GridView, ListView, DetailsView and FormView controls in ASP.NET, and enables smart validation and flexible data templating options. It also delivers new smart filtering server controls, as well as adds support for automatically traversing primary-key/foreign-key relationships and displaying friendly foreign key names - all of which saves you from having to write a ton of code. You can learn more more about this feature from Scott Hanselman's videos and tutorials here. ASP.NET Routing Engine (System.Web.Routing) .NET 3.5 SP1 includes a flexible new URL routing engine that allows you to map incoming URLs to route handlers. It includes support for both parsing parameters from clean URLs (for example: /Products/Browse/Beverages), as well as support to dynamically calculate and generate new URLs from route registrations. This new routing engine is used by both ASP.NET Dynamic Data as well as the new ASP.NET MVC framework. It will support both WebForms and MVC based requests. ASP.NET AJAX Back/Forward Button History Support .NET 3.5 SP1 adds new APIs to ASP.NET AJAX to allow you to better control the history list of a browser (enabling you to control the behavior of the back/forward button of the browser). You can learn more about this feature in the article here and the screencast here. ASP.NET AJAX Script Combining Support .NET 3.5 SP1 introduces a new <CompositeScript> element on the <asp:ScriptManager> server control, which allows you to declaratively define multiple script references within it. All the script references within the CompositeScript element are combined together on the server and served as a single script to the client, reducing the number of requests to the server and improving page load time for ASP.NET AJAX applications. The script combining feature supports both path based scripts and assembly resource based scripts, and dynamically serves up the combined scripts using the ScriptResources.axd handler. Visual Studio 2008 Performance Improvements HTML Designer and HTML Source Editor In February we released a HotFix roll-up that included a number of performance improvements and bug fixes for the VS 2008 Web Designer. VS 2008 SP1 includes all of these fixes, as well as a number of additional performance improvements. Visual Studio 2008 JavaScript Script Formatting and Code Preferences Visual Studio has for several releases supported rich source code formatting options for VB and C# (spacing, line breaks, brace positions, etc). VS 2008 SP1 adds richer source code formatting support for JavaScript as well (both inline <script> blocks and .js files). You can now set your Javascript coding preferences using the Tools->Options dialog: These preferences will be automatically used as you type new Javascript code in the source editor. You can also select existing code, right-click, and choose the "Format Selection" option to apply your style preferences to existing JavaScript code. You can learn more about this new feature here. Better Visual Studio Javascript Intellisense for Multiple Javascript/AJAX Frameworks VS 2008 includes Javascript Intellisense support in source view. The intellisense support with the initial VS 2008 release works well with vanilla JavaScript as well as code written using the ASP.NET AJAX JavaScript type patterns. JavaScript is a very flexible language, though, and many JavaScript libraries use this flexibility to full advantage to implement their features - sometimes in ways that prevented the intellisense engine from providing completion support. VS 2008 SP1 adds much better intellisense support for popular Javascript libraries (we specifically did work to suppo