Benieuwd naar de laatste ontwikkelingen rondom software ontwikkeling en Reflection IT? Onze slimme koppen delen regelmatig hun kennis en ervaring. Zo weet jij wat er speelt!
I have written a Silverlight Minesweepe game in October 2008. I just published an improved version on Silver Arcade which support right mouse click. I implemented it using the following RightMouseTrigger. You can set the SetHandled property to true. This stops the MouseRightButtonDown event from bubbling to it's parent.
I really love Behaviors, Actions and Triggers. I hope you like it too.
Zoals beloofd kan je de Presentatie + Demo's van mijn 'Introduction to WCF RIA Services' sessie van de DevDays downloaden. Je dient eerst wel de Northwind database te installeren op localhost\SQLEXPRESS. Het benodigde installatiescript is ook in de ZIP file opgenomen.
Op 30 en 31 maart a.s. vinden de Microsoft Development Days (DevDays) plaats. DevDays is een evenement dat al 13 jaar dé bron van kennis en inspiratie voor IT ontwikkelaars is. Ook deze keer vinden de DevDays plaats in het World Forum in Den Haag.
Dit jaar zijn de DevDays voor mij extra speciaal omdat ik door Microsoft ben gevraagd om als spreker op de DevDays te verschijnen. Op dinsdag 30 maart mag ik een sessies verzorgen over een onderdeel van Silverlight 4, namelijk WCF RIA Services. Met een goed doordacht Framework, op basis van codegeneratie, wordt hiermee het bouwen van gedistribueerde Silverlight applicaties veel eenvoudiger.
Wilt u ook naar mijn sessie komen luisteren, maar heeft u zich nog niet ingeschreven, ga dan naar www.devdays.nl, want ook u bent uiteraard van harte welkom.
Silverlight doesn't support keyboard selection on a ListBox or Combox. I have created a small Behavior which fixes this problem. You can attach the KeyboardSelectionBehavior to a ListBox or ComboBox using Microsoft Expression Blend. You drag it from the Assets and drop it on your ComboBox or ListBox. If you have a custom ItemTemplate you will have to set the SelectionMemberPath property.
Try my behavior below. If you press a key on the ComboBox or ListBoxes it will select the next item starting with the given key.
The ComboBox in this example is not databound, The behavior uses the Convert.ToString() method to convert the Content of each ListBoxItem/ComboBoxItem to a string. An invariant case insensitive StartWith() comparison is used to find the next item.
The left ListBox is databound to SampleData containing Employees. The behavior uses the DisplayMemberPath of the ListBox. The Name of the databound Employee is used for keyboard selection.
A few months ago I wrote an blog post about a Silverlight 3.0 LetItSnowBehavior. This Behavior can be used to add a Snow effect to a Canvas. Very usefull if you want to create a christmas card.
This behavior was always showing you falling snow flakes. You couldn't stop and (re)start the gameloop. The best way to implement this is by adding Commands to the behavior. This allows you to select one or more triggers to Start or Stop the gameloop. I have added the Start and Stop properties of the type ICommand to the LetItSnowBehavior class. In the constructor I have initialized these properties with new ActionCommand objects (Microsoft.Expression.Interactions.dll) and delegates to the OnStop() and OnStart() methods. Triggers attached to these commands will execute the these methods.
I have written an Simple Report Library for Windows Forms applications a few years ago. The new Printing API makes it possible to create a similar solution for Silverlight 4.
You create a report by instantiating a new ReportDocument object. You can set the Title and the SubTitle. Next you add Paragraphs (FrameworkElements) to the report. Finally you Print the report.
ReportDocument r = newReportDocument() {
Title = "Test Title",
SubTitle = "Test SubTitle",
};
for (int i = 0; i < 40; i++) {
var tb = newTextBlock() {
Text = "Test text " + i,
FontSize = i + 10,
};
r.Paragraphs.Add(tb);
}
r.Print();
This prints the following Test Title.pdf if you print it to a PDF writer.
SilverlightXP is a web application where Silverlight Developers and Designers can post links to controls, resources and other interesting information about Microsoft Silverlight.
Controlling a MediaElement in Silverlight isn't difficult. You use the Play(), Stop() and Pause() methods in your code. I have written the 'ControlMediaElementAction' Behavior which makes it even easier. You don't have to write a single line of code. The ControlMediaElementAction is associated with a MediaElement. It has a ControlMediaElementOption which you can set to Play, Stop, Pause and RewindAndPlay. The Invoke() methods controls (Plays, Stops, Pauses and RewindAndPlays) the AssociatedObject (MediaElement).
You assign a ControlMediaElementAction to a MediaElement. In Expression Blend you drag it from you Asset tab and drop it on a MediaElement. Then you can select your trigger and set all other properties from the Properties tab.
In the following example I have 3 ControlMediaElementAction assigned to a MediaElement. The first is triggerd by the 'Click' event of 'buttonPlay' and uses the 'Play' option. The second is triggerd by the 'Click' event of 'buttonPause' and uses the 'Pause' option. The third is triggerd by the 'MediaEnded' event of the MediaElement and uses the 'RewindAndPlay' option, making the movie loop.
I'm proud to announce the Silverlight XP.net website. It is a web application where Silverlight Developers can post links to interesting information, controls, resources e.t.c. We invite you to submit your Silverlight resources.
Silverlight XP.net is a Silverlight 3.0 LOB application which uses a lot of the new techniques:
.NET Ria Services
Navigation Application (deeplinking + history)
Search Engine Optimization (SEO)
Behaviors
Silverlight XP was created by Loek van den Ouweland and me, and is currently at version 1.0. We plan to add a lot of features soon. We don’t have a feedback-function yet. Please drop comments about the website by mail.
Silverlight 3.0 has a great new feature called Behaviors. You can use them for a lot of things, one of them is to create a SNOW effect in a canvas. I know it is not yet Christmas but I like to be prepared. If you don't know what a behavior is or how to write them read first this blog post from Andrea Boschin.
Met dit formulier kunt u informatie over een In-Company of Small-Group training aanvragen. U kunt in het bericht aangeven welke training u wilt, voor hoeveel personen, wanneer deze verzorgd moet worden en op welke locatie. Wij nemen vervolgens contact met u op.
