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Metro-style apps are very similar to Windows Phone apps. They have a similar application model (for example they can be suspended, and when suspended they can be killed by the operating system if memory is needed), so they need to maintain state. Also, and that is the topic of this post, they cannot be ended by the user in a “normal” way, i.e. there is no File / Exit menu and no “X” button in the corner. Once started, the application remains in memory until the following happens: Read the rest of ...
Microsoft loves MVVM and INotifyPropertyChanged so much that they included this very useful interface twice in the new WinRT framework. Unfortunately, only one of these is working correctly (and the other one is likely a bug, remnant from the past ) Read the rest of this entry » ...
One of the very useful features of the MVVM Light toolkit is to help with the creation of design time data, in order to give something to see on the design surface (Expression Blend, Visual Studio designer). This is especially useful when designing list controls such as ListBox, ComboBox, etc. Without design time data, these controls will remain empty, and the designer will not see what he is working on. This can cost a lot of time and cause frustration. Read the rest of this entry » ...
Another quick tip: Most of the interaction with the System.Type class in Windows 8 is now done through the TypeInfo class. An instance of TypeInfo for a give type is retrieved using an extension method called GetTypeInfo(). Note that since this is an extension method, it will not be visible in Intellisense unless you add a reference to System.Reflection in the “using” section: Read the rest of this entry » ...
In this Issue: Michael Washington, Kunal Chowdhury, WindowsPhoneGeek, Xianzhong Zhu, Jeremy Likness, Pete Brown, Jesse Liberty, Derik Whittaker, Morten Nielsen(-2-), Sumit Dutta, Asim Sajjad, and Dhananjay Kumar. Above the Fold: Silverlight: "Enumerating MIDI Interfaces using Silverlight 5 PInvoke" Pete Brown WP7: "Migrating PushBox Game from Android to Windows Phone 7 - Part 5" Xianzhong Zhu Windows8: "Windows 8: What you Need to Know" Jeremy Likness LightSwitch: "How To Create a LightSwitch Command ...
In this Issue: Shawn Wildermuth, Ollie Riches, Oscar Agreda, Samidip Basu, Dan Wahlin, Walt Ritscher, Laurent Bugnion(-2-), Andrej Tozon, András Velvárt, Vikram Pendse, Michael Crump, Andy Beaulieu(-2-), Michael Sync(-2-), Above the Fold: Silverlight: "The MVVM Dashboard" Oscar Agreda WP7: "SurfCube on Mango Part 4 – fighting with the ListPicker control" András Velvárt Windows 8: "Why I’m Excited About Windows 8" Dan Wahlin LightSwitch: "Creating LightSwitch Custom Controls" Michael Washington Shoutouts: ...

This is a quick tip, because it confused me at first. But thanks to the always excellent Tim Heuer and Peter Provost (from the Visual Studio team), here is the answer:

Usual disclaimer: This is for XAML/C#. I am not sure how this works for the other programming stacks.

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I have been watching the influencer interviews with Richard Campbell as well as the Build Sessions recently published on Channel 9. Like most of you, I am trying to learn as much as I can about this new platform in the shortest amount of time. That is why I’m going to share my list of Killer Build Interviews and XAML Sessions. Note: Click on the image thumbnail to watch the video. First up, Interviews. Working at Telerik means that you get big influencers and great hosts at events like Build. I have ...
Introduction One of the things that we all look at before we ship software is the performance of our apps. Last November, I posted a quick and easy way to do it in Silverlight. Today, I am going to walk you through doing it in Windows 8 for your Metro XAML applications. After the Build event was over, I was interested in learning how to do this for my Windows 8 Metro Apps. I started watching videos from the Build RSS Feed and noticed this one from Tim Heuer that did just that. Let’s get started Click/Touch ...
In this Issue: Eric Jensen, Andrea Boschin, Gill Cleeren, Rene Schulte, Colin Eberhardt(-2-), Mark Tucker(-2-), Mark Monster, Walter Ferrari, and Michael Washington(-2-). Above the Fold: Silverlight: "Welcome to Zombieland, the Metro Style Land of WinRT and the Undead" Rene Schulte WP7: "Adding Tactile Feedback to your app the easy way" Mark Monster LightSwitch: "A Random Walk Through The LightSwitch Data Model" Michael Washington Windows8: "TweetSearch – A Cross platform Metro UI WinRT and Silverlight ...
I had dinner the other night with my good friend Josh Smith, and of course we started talking about Windows 8. Something he said was pretty much spot on: He said that Windows 8 feels as if it has split personalities. There are the WinRT “Metro-style” apps and there is the “classic” Desktop, which looks and feels like Windows 7++ (optimized for touch, and actually a real delight to use with my fat greasy fingers). Read the rest of this entry » ...
Introduction I’m sure by now you have heard that the Silverlight 5 Release Candidate has been released. I recently had a chance to Guest Blog for the Microsoft MVP Award Program Blog on “Getting Started with the Silverlight 5 Release Candidate”. Now before we get started learning about it, let’s look at a few new features: What is new in the Silverlight 5? Multiple Window Support - Trusted app can create additional Windows. Ancestor RelativeSource Binding – Enables a DataTemplate to bind to a property ...

If you are using MVVM-Light style ViewModel creation (often referred to as “view-first”), you might have noticed that you cannot build if you have an object in the view’s resources. It means that the code below does not compile.

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I'm back... what did I miss?? Oh wait... you're expecting info from me about my week I guess :) I had an awesome time: Met tons of people that I didn't already know. Renewed friendships with another ton of people I only see a couple times a year Went to Billy Hollis' PreCon and learned a lot of cool design information that I have yet to transcribe or assimilate entirely Went to Tim Huckaby's party and was "B8 ed" ... although that looked better on the girl wearing the TShirt when I got there Didn't ...
At times it is quite tough to be on the bleeding edge. I have been using the Samsung slate that Microsoft gave us at the Build conference last week for about 5 days now, and in fact I even left my laptop (a Touchsmart TX2 that I like a lot but that is getting old a bit) at the hotel. One issue I had today is that the Bluetooth keyboard stopped working. I tried removing and reading it from the Devices dialog, but it didn’t work. Read the rest of this entry » ...

Just a quick note: When you create a new WinRT application for XAML/C# in Visual Studio 11, you will notice that the References folder is empty.

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Last week, Microsoft held their long awaited Build Windows (or simply "Build") conference in Anaheim CA. About 5000 people packed the convention center to discover the latest version of the Windows operation system: Windows 8.

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Programming for Metro Metro is the future http://zd.net/rnT9VZ .NET is for old apps. WinRT replaces WPF & WCF. XAML is big. There were no Silverlight sessions. HTML 5 and Javascript ( Blend for HTML) are back in fashion – I wont dwell on this because web apps are (inconsistently) simplistic in concept and over-complex in development. Yes, all those XAML skills are portable, Silverlight (RIP) apps can run as Metro apps with a bit of fidgeting with namespaces – you just need to know what controls ...
Introduction The conference sessions are starting to appear on the Channel 9 RSS feeds right now. If you are like me then you probably want to download all of them and watch them later. Here is the method that I use to grab all the videos and thought that it would help others. Note: You can use either Juice or PowerShell (which is located at the bottom of this post). Let’s do this with Juice Navigate over to http://channel9.msdn.com/Ev... and select the option to Subscribe to this ...
I am like everyone else when it comes to Preview OS Software. I don’t want it on installed on my primary machine and I don’t want to lug around another laptop to try stuff. I am not a fan of booting of VHD (which I will explain in a second). Scott Hanselman made a great post on how to do this if you are interested however. The main issue that I see with this approach is that the bootloader on my MAIN MACHINE is replaced with the Windows 8 Preview one. Yikes! I don’t want any preview software with ...
I usually do a bullet points from major conference events like this one from Mix11. The purpose of this post is to get you up to speed quickly with news and links you may enjoy. Build – Day 1 Keynote Windows 8 takes about half the amount of RAM to run compared to Windows 7. Windows 7 usage by consumers is now greater than Windows XP. Like the Metro Interface? Well, you better as the interface is similar to the Windows Phone 7. You can unlock your touch-enabled PC by tapping certain spots on a picture. ...

As usual when I attend a conference, I like to take quick notes to remember what it was all about and take some time later to analyze it. Since Windows 8 is going to be the next big things, let me share my notes with you!

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This morning, I published MVVM Light V4 beta1 in the form of an MSI. The installation instructions are detailed on the MVVM Light installation page. Please make sure to uninstall previous versions before you install V4 beta1. There are quite a few changes in this version, and I plan to blog about various features in the coming days. As usual, stay tuned! Read the rest of this entry » ...
In this Issue: Kunal Chowdhury, David Anson, Cheryl Simmons, Ryan Alford, Peter Kuhn, Ollie Riches, Mike Hole, Allen Lee, WindowsPhoneGeek, Mike Taulty, Sumit Dutta, Asim Sajjad, Dhananjay Kumar, and Vikram Pendse. Above the Fold: Silverlight: "Silverlight 5 PInvoke fun - System Font Dialog" Peter Kuhn WP7: "Adding a map image to a secondary live tile" Mike Hole Expression Blend: "Silverlight 4 – Custom Busy Indicator Using PathListBox" Ryan Alford Shoutouts: Michael Palermo's latest Desert Mountain ...
2011 has been a very exciting year for me so far. I was awarded the Microsoft Silverlight MVP. I was renewed as the DZone MVB. I was awarded as a GeeksWithBlog Influencer. I won the CodeProject Windows Phone 7 Competition. I’ve been invited to speak about Silverlight at UserGroups as well as several major conferences such as SSWUG, CodeStock and devLINK. My first e-Book on Producing and Consuming Silverlight in an OData application was published. I’ve been asked to be a technical editor for two Silverlight ...
Introduction You might have noticed that the Silverlight 5 (Release Candidate) is out. One of the new features included in the RC is the ability to call P/Invoke. In this short demo, we will write a Silverlight 5 application that uses the feature. Tools needed: Visual Studio 2010 SP1 or Visual Web Developer Express 2010 SP1 is required to develop a Silverlight 5 RC Application. After you have installed VS2010 SP1 or Visual Web Developer Express 2010 SP1, then you will need to download and install ...
In this Issue: Ollie Riches, Tony Champion, Kunal Chowdhury, WindowsPhoneGeek, Jeremy Likness, Mike Taulty, Jesse Liberty, Sumit Dutta, Asim Sajjad, Justin Angel, and Shawn Wildermuth(-2-). Above the Fold: Silverlight: "Creating a Multi-Click Event in Silverlight 5" Tony Champion WP7: "Windows Phone 7 Marketplace Statistics" Justin Angel Shoutouts: SilverlightShow has posted their top 5 for last week: SilverlightShow for August 29 - Sept 04, 2011 Michael Palermo's latest Desert Mountain Developers ...

I will be attending Build  Windows next week.

It's a funny thing: there is literally nothing known about the contents. Well, there is: it's going to be about Windows 8 and Touch. When I read that last part (the Touch part) I knew I had to be there...

So, keep an eye on this blog and I will let you know what happens! You can also follow me on twitter @dvroegop for real time information.

Stay tuned!

In this Issue: Michael Washington, Tony Champion, Ollie Riches, Gill Cleeren, Koen Zwikstra(-2-), Peter Kuhn, Xianzhong Zhu, Mike Taulty, Pete Brown, Sumit Dutta(-2-), Asim Sajjad, Dhananjay Kumar(-2-), Above the Fold: Silverlight: "Silverlight Spy September 2011 Update" Koen Zwikstra WP7: "Windows Phone 7 on-demand training available" Peter Kuhn LightSwitch: "Quick And Easy Data Management With LightSwitch" Michael Washington PivotViewer: "Extending your CXML Trading Cards in Silverlight 5" Tony ...
In this Issue: Lee, Kunal Chowdhury, Peter Kuhn, XamlNinja, Ollie Riches, WindowsPhoneGeek, Jeremy Likness, Pete Brown(-2-, -3-), Dhananjay Kumar, Sumit Dutta, and Asim Sajjad. Above the Fold: Silverlight: "Using PInvoke in SL5 to show MessageBox" Lee WP7: "WP7Contrib: Dialling the phone number shown in a text block" Ollie Riches Shoutouts: Michael Palermo's latest Desert Mountain Developers is up Michael Washington's latest Visual Studio #LightSwitch Daily is up Laurent Bugnion has some good news ...
In this Issue: Tony Champion, Kevin Hoffman, Pete Brown(-2-), Mike Gold, Jeremy Likness, Xpert360, Den Delimarsky, Sumit Dutta, Asim Sajjad, Vikram Pendse, and Michael Crump. Above the Fold: Silverlight: "Silverlight 5: Remote control and MediaCommand Support" Pete Brown WP7: "Extracting a SQL CE DB from Isolated Storage in WP7 Mango" Michael Crump PivotViewer: "To CXML or not to CXML" Tony Champion Shoutouts: Michael Palermo's latest Desert Mountain Developers is up Michael Washington's latest Visual ...
Today the release candidate of Microsoft’s Silverlight 5 was released to the public. If you want to know “What’s new in Silverlight 5” then check out this page on Silverlight.net and continue reading the article below. Getting Started First, we are going to need to download the required tools to install the Silverlight 5 RC. Before getting started, please note that you can install the Silverlight 5 RC on top of the final release of Silverlight 4. If you have the Silverlight 5 Beta installed, then ...
After I released the MVVM Light installer, I got a note saying that parts of the installation failed on non-English systems (in that case a German installation of Expression Blend and Visual Studio). Specifically, what failed was the code snippets on Visual Studio, and the project and item templates in Expression Blend. Read the rest of this entry » ...
Introduction By now, most of you have heard that Windows Phone 7 – Mango release will support Local Databases (SQL CE) using Linq to SQL. But what you probably haven’t heard much about is how to extract the .SDF that is created in isolated storage to your local computer and view the contents. I find this extremely important for debugging application and making sure my database is setup exactly like I want it. So, that is what we are going to do today. Getting Started with a sample application: For ...
In this Issue: Alex Golesh(-2-, -3-), Andrea Boschin, Peter Kuhn, Shawn Wildermuth, WindowsPhoneGeek(-2-), Jesse Liberty, Pete Vickers, Sumit Dutta, Asim Sajjad, Chad Campbell, Vikram Pendse, Michael Crump, and David Kelley. Above the Fold: Silverlight: "Silverlight 5 : Low-Latency Sound Effects" Vikram Pendse WP7: "Windows Phone codenamed "Mango" Training Course" Alex Golesh Shoutouts: Michael Palermo's latest Desert Mountain Developers is up My friends at SilverlightShow posted their top 5 for ...
Today, I was testing a Web site for deployment and encountered the problem described in the subject of this post. However, the process leading up to realizing the true problem was far from clear. This post describes my initial experience, steps I took to isolate the true problem, and what I did to fix it. To put this in context, My project is an ASP.NET 4.0 Website. Bump! While testing, I encountered a System.Web.HttpException with the following message: File does not exist. with the following stack ...
Introduction Have you ever wondered how to update the Application Tile in your Windows Phone 7 Mango application? Me too. But before we dig in, let’s look at the properties of a Tile. Microsoft defines each one as listed below: Title. A string indicating the title of the application. The Title must fit on a single line of text and should not be wider than the actual Tile. Approximately 15 characters will fit in the title before being truncated. BackgroundImage. An image displayed on the front of ...
In this Issue: Gill Cleeren, Shawn Wildermuth, WindowsPhoneGeek, Erno de Weerd, Morten Nielsen, Sumit Dutta, and Asim Sajjad. Above the Fold: Silverlight: "Post Comments Using Silverlight" Asim Sajjad WP7: "Windows Phone 7 Navigation" Erno de Weerd LightSwitch: "Developing real-world applications with LightSwitch - Part 4: To query or to code, that is the question!" Gill Cleeren Shoutouts: Michael Palermo's latest Desert Mountain Developers is up From SilverlightCream.com: Developing real-world applications ...
In this Issue: Asim Sajjad, Thomas Martinsen, Johan Danforth, Kunal Chowdhury, Loek van den Ouweland, XAMLNinja, WindowsPhoneGeek, Erno de Weerd, Sumit Dutta, and David Yack. Above the Fold: Silverlight: "Update XAP file" Thomas Martinsen WP7: "WP7 Ad Control and OutOfMemoryException" David Yack Shoutouts: Michael Palermo's latest Desert Mountain Developers is up Den Delimarsky is working on an 'alternative non-approval based Marketplace for Windows Phone': [Weekend coding] MetroPack – desktop Cydia ...
In this Issue: Andrea Boschin, Shawn Wildermuth, Kunal Chowdhury, Peter Kuhn, Loek van den Ouweland, XAMLNinja, Ollie Riches(-2-), WindowsPhoneGeek, John Papa, Den Delimarsky, and Sumit Dutta. Above the Fold: WP7: "Fun With New Live Tile API" Shawn Wildermuth Expression Blend: "Icons or other visuals with XAML instead of bitmaps" Shoutouts: Michael Palermo's latest Desert Mountain Developers is up Gill Cleeren posted his SilverlightShow Advanced Silverlight 5 webinar files From SilverlightCream.com: ...
Introduction: One of the concerns that I keep hearing from customers is, “We can’t deploy Silverlight because it won’t run on a tablet.” I usually reply to that question stating, “What do you mean it can’t run on a tablet?” They usually looked puzzled and say, “You mean Silverlight *CAN* run on a tablet?” Yes, there are many devices that Silverlight can run on. Today we are going to take a look at the Motion CL900 Tablet. FYI: I have no affiliation with Motion Computing. Why this tablet? When I first ...
Official Site | Samples | Download | Documentation | Forum | Twitter Introduction jqChart takes advantages of HTML5 Canvas to deliver high performance client-side charts and graphs across browsers (IE 6+, Firefox, Chrome, Opera, Safari) and devices, including iOS and Android mobile devices. Some of the key features are: High performance rendering. Animaitons. Scrolling/Zoooming. Support for unlimited number of data series and data points. Support for unlimited number of chart axes. True DateTime ...
In this Issue: Sigurd Snørteland, Kunal Chowdhury, Todd Brix, MIke Ormond, XAMLNinja, Ollie Riches(-2-), WindowsPhoneGeek, John Papa, Jesse Liberty, Morten Nielsen, and Gill Cleeren. Above the Fold: Silverlight: "apps portal – a silverlight based app store" Sigurd Snørteland WP7: "Windows Phone: Adding Mango features to a 7.0 WinPhone App" Morten Nielsen Expression Blend: "Expression Blend Drawing Tips" John Papa LightSwitch: "Cleaning a LightSwitch solution" Gill Cleeren Shoutouts: Michael Palermo's ...
In this Issue: Michael Washington, Gill Cleeren, Chris Koenig, Kunal Chowdhury(-2-), Ryan Alford, and Shawn Wildermuth(-2-). Above the Fold: Silverlight: "Relative Source Binding in Silverlight" Kunal Chowdhury WP7: "Maintaining a Project with Two Windows Phone Versions" Shawn Wildermuth LightSwitch: "Tree Control: Hierarchical Data with LightSwitch" Michael Washington Shoutouts: Michael Palermo's got his latest Desert Mountain Developers up From SilverlightCream.com: Tree Control: Hierarchical Data ...
In this Issue: Shawn Wildermuth, Beth Massi, Ryan Alford, WindowsPhoneGeek(-2-), Jeremy Likness, John Papa(-2-), Jeff Wilcox, Mike Ormond, Ollie Riches(-2-), and Mijail Cisneros. Above the Fold: Silverlight: "Silverlight 5 Incompatibility: Play by the Rules" Jeremy Likness WP7: "Windows Phone Mango Custom application Theme Step by Step" WindowsPhoneGeek LightSwitch: "How to Allow Adding of Data to an Auto-Complete Drop-down Box in LightSwitch" Beth Massi Shoutouts: Mike Ormond posted about the next ...
In this Issue: AfricanGeek, Dhananjay Kumar, Erno de Weerd, Jesse Liberty(-2-), Den Delimarsky, Austin Andrews, John Papa, Morten Nielsen(-2-), Andrej Tozon(-2-), and Michael Washington. Above the Fold: Silverlight: "Papa's Perspective: Fundamental MVVM" John Papa WP7: "Connecting Windows Phone 7, Zune, a Proxy Server and an Intranet Web Service" Erno de Weerd LightSwitch: "Using WCF RIA Services With LightSwitch: I Know You're Scared, I Understand" Michael Washington Shoutouts: Michael Crump is ...
On August 19th 2011 I gave a presentation at devLINK titled, “Producing and Consuming OData in an Silverlight and Windows Phone 7 Application”. As promised, here is the Slides / Code / Resources to my talk. Slides – The query slide in this deck was taken from a slide in Mike Taulty’s talk. This is the first time that I used Prezi in a talk and it worked out wonderful! I want to apologize in advance for embedding a flash player in my blog. It is all that Prezi supports at this time. =( Producing and ...
In this All Submittal Issue: Michael Washington, SilverlightShow(-2-), Mark Monster(-2-), Oren Gal, Andrea Boschin, Sigurd Snørteland, Peter Kuhn, Mijail Cisneros, Kunal Chowdhury(-2-), Gill Cleeren Above the Fold: Silverlight: "Why Visual Studio Debugger is not working for my Silverlight Application?" Kunal Chowdhury WP7: "Cache as Fallback using Reactive Extensions" Mark Monster LightSwitch: "Using WCF RIA Services In LightSwitch To Simplify Your Application UI" Michael Washington Shoutouts: Michael ...
A new blog has appeared from the engineering team to have a two-way dialog with you about design choices, real-world data and usage, and new opportunities that are part of Windows 8. We showed you a preview of Windows 8 in June, demonstrating the user experience and providing an update on ARM SoC support. The next major event for Windows is our BUILD conference in September, where we will provide developers with more details about the full spectrum of tools and capabilities available to make the ...
In this Issue: Michael Washington, Andrej Tozon, András Velvárt, Michael Crump, Nigel Sampson, Ben Gracewood, Jeremy Likness, Den Delimarsky, Austin Andrews, Morten Nielsen(-2-), and Alex Sorokoletov. Above the Fold: Silverlight: "Using Attribute Validation in Silverlight with WCF RIA Services Example" Jeremy Likness WP7: "SurfCube on Mango Part 3–Share on Facebook, Twitter, LinkedIn" András Velvárt LightSwitch: "How To Create a Simple Control Extension (Or How To Make LightSwitch Controls You Can ...