silverlight

Silverlight 4 desktop application sometimes zooms when touching it... and cannot zoom out

Hi, I have a Silverlight 4 desktop application which I control using a touchscreen (on an HP Touchsmart). Most of the time it works fine but sometimes when clicking something everything just zooms in and every time it happens things get bigger and bigger. The only way to get the normal size again is by restarting the application. Ha...

Silverlight 4 - Render UIElement as an Image

Hello, I have a UIElement that I want to capture a snapshot of when a user clicks a button. When a user clicks the button, I want to take the UIElement and load it's current state into an Image element. How do I render a UIElement as an Image? Thank you! ...

Silverlight? WPF? or Windows Form?

After Silverlight 4.0 has been released with new WPF, I am kind of confused with these technologies: Silverlight? WPF? Windows Form? The main motive that we want to achieve for BIG business project is following: Performance Security And platform independent** If I consider all above three points then only Silverlight is the option a...

Silverlight: DataContractSerializer cannot handle read only collection properties

Hey Stackoverflowers :) For our Silverlight Project (SL4) I'm using a Model which might contain Lists (IList<AnotherModel>). According to good practice and rule CA2227:CollectionPropertiesShouldBeReadOnly the IList properties don't have a public setter. We serialize the Model using the DataContractSerializer which is working. But when ...

Any reasons to recompile Silverlight 3 controls for Silverlight 4?

When I release a custom control which works in both Silverlight 3 and Silverlight 4 is there any reason to provide a separate binary version targeted at Silverlight 4? As far as I understand SL4 apps using SL3 controls run normally in SL4 mode but maybe there are some hidden benefits of recompiling controls for SL4 (or gotchas of not d...

Silverlight 3 custom control: only 'int' as numeric type for a property? [e.g. long or int64 seems to break]

Hi, I'm trying to add a new property to a Silverlight 3 custom control of mine. An int property works perfectly, but if I change it to a long or an int64, I've got a xaml parser exception on runtime. Do you know if it's a known restriction in SL3? C# side, new control: public class myExtTextBox : TextBox { public int MaxNumericVa...

How to display different Enum icons using XAML only?

I want to show a different icon/image depending on an enum value. For example, if I had the following enum: public enum UploadStatus { Unknown = 0, WaitingToUpload = 10, Uploading = 20, Uploaded = 30, UploadFailed = 40 } I'd like to write XAML that looks something like this: ... <EnumImage Value="...

Autocompletion of Amazon results in Silverlight

I am working on a Silverlight application that is supposed to work with dtaa provided by the Amazon Services. I'd like to make a search field that provides Google-like autocompletion. I have the basic idea behind that, but I need to know whether the Amazon API could return a list of books based on a few characters entered in the search f...

All Silverlight Examples use WebForms. Are there tutorials for use with MVC 2?

I'd like to see if anyone out there can steer me in the right direction for linking up a Silverlight project with an MVC2 one. I know how to get it started but how do I get the .xap to show in the View? Looking for a good tutorial or blog? ...

Silverlight Custom TabItem?

Hi all, I tried to create a custom tabitem on Silverlight, but when i run it, it's complaining Unable to cast CustomTab to TabItem. I am not sure how to fix that, any idea? Thanks alot ...

Assign enum property in xaml using silverlight

I have a property of datattype enum : like public BreakLevel Level { get { return level; } set { level = value; } } And enum defined : public enum BreakLevel { Warning, Fatal } I want bind the neum property to the visibility of my border , somewhat like this: Visibility="{Binding BreakLevel.Fatal}" so is...

Why does Silverlight provides webcam and microphone support without any encoding API?

In the list of new features in Silverlight 4 you will find following: Webcam and microphone to allow sharing of video and audio for instance for chat or customer service applications. Silverlight captures an audio stream as raw pcm. So how would you realize for example audio/video chat or client/server audio recording application ...

Silverlight and MV(VM) Pattern - No Code-Behind - Is this possible?

I am working on Silverlight 3.0 and currently using code-behind in my Views. I would like to implement the MV(VM) pattern into my project as the project is growing. I have seen some WPF projects where the code-behind has NO CODE except for the InitializeComponent method, which I believe is the right way to go and just looks clean. Is ...

MySQL from Silverlight on Linux Server

I'm trying to access a MySQL database through Silverlight, and I know you can't do it directly, but the only way I know of is to use a WCF service. This won't run on the server I have, is there any other way to access the database (through PHP maybe)? ...

PRISM - Creating mouseoverbehavior causes a Silverlight library to not be visible in main Silverlight app to be able to create namespace ref in xaml.

Created a simple Silverlight 4 application (SimpleApp) then added a Silverlight 4 library (LibraryA). Added code to the library (LibraryA) to implement MouseOverBehavior by inheriting from CommandBaseBehavior along with the appropriate attached property class/methods. Added reference in SimpleApp to LibraryA and went to MainPage.xaml to ...

Binding a combobox in XAML to a childwindow property

Hi, I want to display a child window that contains a combobox with several values coming from one of the child window's property: public partial class MyChildWindow : ChildWindow { private ObservableCollection<MyClass> _collectionToBind = // initialize and add items to collection to make sure it s not empty... public Observabl...

Silverlight Toolkit - Rating Control

This is my first silverlight Application. I am trying to use Rating Control from 3.0 Toolkit with VisualStudio 2008 Here are the problems: I am unable to see designer view after adding Rating Control and few other controls. I am not getting any errors or warnings on markup or while compiling. Trying to access Property window for any ...

VS2010: Warning on add project reference to Silverlight project from .NET project

In VS2010, Silverlight 4, .NET 4, I've got a WCF service and a Silverlight app, and Silverlight is accessing the class not with Add Service Reference but by sharing the contract. Naturally, this means I have the contract in a Silverlight class library, and the service has a project reference to that library. Strangely, this results in a...

Preloading and caching of images in silverlight

Hi there I have a silverlight application in vs2010 and iam using silverlight 4.0. I have to show a videoppt in which a video is synchronised with images and it runs as a video powerpoint presentation. Is it possible to preload the images or cache them, so that they get rendered as soon as the video starts. If there is a way out, plz gu...

Drag and Drop file upload in Silverlight 4?

I'm working on re-writing a WinForms application into Silverlight. One use case in the WinForms app allows users to drag TIFF images (of faxes) from Outlook directly onto an "attach an image or fax to this case" control in the WinForms app. Is there a Silverlight 4 control which allows for the same functionality? It's important to realiz...