Lester's WPF\SL Blog


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  • Blog Post: VS 2010 \ .NET 4 now available

    It's finally out... yoohoo... Live keynote: Link Download: Link With VS 2010, you will be able to target platforms such as Azure, Windows Phone 7, Windows 7, Sharepoint, Office, Windows Server 2008 R2. Note that Silverlight 4 will be released later this week. Once released, you will be able...
  • Blog Post: WPF Manipulation Basics

    Here's the second post by Drake on the usage of Manipulation features.. Sample attached WPF Manipulation Basics Things to know before we start Understanding how RoutedEvents work might provide additional insight for this tutorial. http://msdn.microsoft.com/magazine/cc785480 . In the previous...
  • Blog Post: Concluding "New WPF Features" Series

    This is the last part of a series on New WPF Features The list of features covered here as part of this series: · MultiTouch · DatePicker\Calendar · Datagrid · Visual State Manager (VSM) · Easing Functions · JumpLists · Pixel Shader 3 support · Cached Composition · Full...
  • Blog Post: XAML 2009 Features: FactoryMethod\Arguments

    This is part of a series on New WPF\XAML Features Another new feature in XAML 2009 is the possibility of creating objects using the non-default constructors. The keyword here is x:Arguments So creating a person object with a constructor requiring Name\Age could be written in XAML as < local...
  • Blog Post: XAML 2009 Features: Generics Support

    This is part of a series on New WPF\XAML Features XAML 2009 supports generics J .. In previous releases, if you needed to have an observableCollection for databinding you would probably have written code like class PersonCollection :ObservableCollection < Person > {} < l : PersonCollection...
  • Blog Post: New WPF Features: SynchronizedInputPattern

    This is part of a series on New WPF Features In previous releases, sending input through automation was tricky mainly because the app and the automation processes were separate. The app state could change between the time the input was sent and received. As an example, suppose you need to click something...
  • Blog Post: New WPF Features: PixelShader3 Support

    This is part of a series on New WPF Features Previously WPF only supported Pixel Shader 2.0 (PS 2.0). For this release, we added PS 3.0 support providing the benefits of more instructions, registers .... The usage is similar as before. However, we have provided an API to determine if the shader...
  • Blog Post: New WPF Features: UIA Virtualization

    Pre .NET 4, from a UI automation perspective, virtualization was not a good story. There wasn’t a standard way of dealing with virtualized controls, since some would expose only the visual elements while the others would create an automation tree that had every element. To fix this problem, in .NET 4...
  • Blog Post: New WPF Features: Updated File Dialogs

    This is part of a series on New WPF Features In previous releases, WPF open\Save dilogs had the XP style even on Vista. Some workarounds were to use the Vista bridge library or use the winforms dialogs. For this release we fixed this issue. You now get the OS style dialogs :) ... Usage wise its the...
  • Blog Post: XAML 2009 Features: XAML Event handling

    [ This is part of a series on New WPF\XAML Features] In previous releases, when loose XAML had events in it and was loaded it would crash. In V4, there are 2 options to avoid this crash. à On loading events are searched on the root object of the XAML file. Suppose you had the loose XAML like the...
  • Blog Post: New WPF Features: Cached Composition

    This is part of a series on New WPF Features One of the big improvements in 4.0 is the Cached Composition feature in graphics. This feature enables caching a live UIElement as a bitmap, which enables quick rendering of the element as a bitmap. The UIElement is user interactive and hence will respond...
  • Blog Post: XAML 2009 Features: Node Loop flexibility

    [ This is part of a series on New WPF\XAML Features] So by now most of you must have noticed the System.Xaml dll as part of your .NET 4 WPF projects. It’s a well componentized XAML stack that provides a lot of flexibility working with XAML. So at the core we a System.Xaml.XamlReader and XamlWriter...
  • Blog Post: New WPF Features: Full Trust Xbap Deployment

    This is part of a series on New WPF Features In earlier versions, on trying to deploy a Full Trust Xbap, you would get a "Trust Not Granted" error. Its possible to workaround this issue by installing an assembly in the GAC that has the AllowPartiallyTrustedCallersAttribute. Another option is to install...
  • Blog Post: Xaml 2009 Features: Built in Types

    In Xaml2009, we have built-in support for common CLR types which simplifies authoring. So rather than specifying something like < s:String xmlns:s ="clr-namespace:System;assembly=mscorlib"> Foo </ s:String > We can use the notation < x:String > Foo </ s:String > The list...
  • Blog Post: New WPF Features: ClearTypeHint

    This is part of a series on New WPF Features WPF enforces grayscale rendering when text is rendered on a transparent area. However, its possible that the background of a control is opaque even though its inside a transparent area. For example, popups have rounded edges and will have the allowstransparency...
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