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Productivity
Using shared columns with Telerik OpenAccess ORM
Telerik OpenAccess ORM always implemented relations between entities as reference properties (you can have properties on the both ends, or just on the one you decide) and this was the only supported way until now. Starting from Q3 2009 release we also started to support relations that are based not on reference properties, but rather on properties that expose the foreign keys for the entities. This pattern proved to be very useful for Linq To Sql, despite the fact that it is considered a ‘bad practice’ in the OOP domain. With the latest release of Telerik OpenAccess ORM we...May 27, 2021 4 min read -
Web
RadGridView for Silverlight and WCF RIA Services Part II: Basic Editing Support
In my previous blog post I have demonstrated how to display master-details data in an asynchronous manner with RadGridView for Silverlight and WCF RIA Services. I have decided to refactor the sample project a little bit and add some very basic editing support. Here is the changes I have made to the sample project: I have recreated the ChinookService to support editing. I have encapsulated the details grid into a new user control called AlbumsControl. I have added a “Submit Changes” button below the details grid. I got rid of the IValueConverter that used to create the albums DomainDataSource and defined everything in... -
Release
Telerik Commanding mechanism for Silverlight Overview
Q2 and Q3 releases brought up support for commands usable in a similar way as the commanding mechanism from WPF. In a few points the Commanding mechanism provides several classes: RoutedCommand and RoutedUICommand – ICommand implementations, the second has a Text property ICommandSource – once an object implement it, it knows how to invoke a command, i.e. it receives Command, CommandParameter and CommandTarget properties. CommandBinding – maps the command logic to the command CommandManager – provides methods that register CommandBinding and InputBinding objects, add and remove command event handlers, and provides services for querying the status of a command. Creating a command Basically, we can implement the...May 27, 2021 2 min read -
Web
Asynchronous Master-Details with RadGridView for Silverlight and WCF RIA Services
Inspired by Brad Abrams’ marvelous series of blog posts, I have decided to create a simple project demonstrating how to harness the enormous power of RIA Services with Telerik RadGridView for Silverlight. I have decided to use the new Chinook database after reading this wonderful post by Tim Heuer explaining how to work with relational data in the RIA Services paradigm. Make sure you have this database installed on the default instance of your SQL Server 2008 Express or you will have to modify the connection string as needed. In one of my previous blog posts I have thoroughly explained How To Display Hierarchical Data with... -
Web
How To: Populate RadGridView for Silverlight distinct filters asynchronously using WCF RIA Services
With our upcoming service pack (Q3 2009 SP2) you will be able to populate distinct values asynchronously using the DistinctValuesLoading event. To achieve this you can assign any INotifyCollectionChanged collection for distinct values ItemsSource and RadGridView will update the UI immediately on any change. I’ve made small demo on how to achieve this using WCF RIA Services and RadGridView bound to DomainDataSource with DataPager – in this case the grid distinct values are populated from the entire collection server-side not only from the current downloaded page: server-side: public List<DistinctValue> GetDistinctValues(string propertyName) { var list... -
Productivity
SQL Azure Lessons Learned: Building a Commercial Product with SQL Azure Support
As you may know Telerik has built into most of its products support for Windows and SQL Azure. While at the PDC last November, Ben Riga interviewed me on what it was like to build a commercial product on top of Azure. I give a sneak peak at how we developed the software and how we leveraged SQL Azure. I talk about some of our pain points as well as where it was easy. The video is here, complete with my cell phone’s battery dying in the middle of our interview! Enjoy! Technorati Tags: Azure,TelerikWebApplication Library Caching in RadControls for Silverlight
As people become more aware of the fantastic things you can do with Silverlight, they’ve also realized one of the downsides of this can be increased XAP size. The default way that Silverlight handles a XAP is to include all the required assemblies into that single compressed file. This isn’t that bad when you’re working with a barebones Silverlight project, but once you start adding in different controls or 3rd party assemblies you are increasing your XAP size quite a bit in some cases. And as we all know, a larger XAP leads to longer load times, and although people have...WebVertical Orientation of CoverFlow for Silverlight
The feedback about our new version of CoverFlow for Silverlight has been great! Thank you guys for pointing out all these small issues and problems that had to be polished since we introduced a new beta CoverFlow for Silverlight 3 back in September. After the core functionality of the control is successfully integrated in our Silverlight 3 suite, we are now able to start developing new features that every grown-up CoverFlow control should possess :) Vertical Orientation Both in our forum and support system we have received numerous requests for vertical orientation of the CoverFlow control. That is why, with our 2009...Desktop WPFUsing Compass indicators properties for Telerik's Docking Control for Silverlight and WPF
Sometimes when using a Docking control and implementing complex UI with it we need to add some custom rules about allowing some panes to be docked in some parts of the application and to disallow them to dock to other parts. As this behavior is quite complex itself, we’ve decided to enable some scenarios to be available in XAML in a declarative way (the more static scenarios) and some scenarios to be available only through the code-behind. In this post I will guide you through some simple steps that will show you how you could use both approaches. First of all...Desktop WPFHow To: Easy print and print preview with RadGridView for WPF
Using FixedDocument, DocumentViewer and PrintDialog you can easily create your own print and/or print preview for RadGridView for WPF. I’ve made two extension methods Print() and PrintPreview() to illustrate how to turn the grid into a print friendly document in few lines of code: … public static void PrintPreview(this GridViewDataControl source) { var window = new Window() { Title = "Print Preview", Content = new DocumentViewer() ...
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