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What is new in Windows Presentation Foundation for .NET 3.5 SP1?. Pandurang Nayak & Supreet Singh Client Platform / UX Evangelist | Microsoft Corporation. .NET Framework and Tools Roadmap. 2006 .NET Framework 3.0 VS 2005 Extensions for .NET 3.0 (CTP) 2007 .NET Framework 3.5

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what is new in windows presentation foundation for net 3 5 sp1

What is new in Windows Presentation Foundationfor .NET 3.5 SP1?

Pandurang Nayak & Supreet Singh

Client Platform / UX Evangelist |Microsoft Corporation

net framework and tools roadmap
.NET Framework and Tools Roadmap
  • 2006
    • .NET Framework 3.0
    • VS 2005 Extensions for .NET 3.0 (CTP)
  • 2007
    • .NET Framework 3.5
    • Visual Studio 2008
    • Expression Blend 1.0
  • 2008
    • .NET Framework 3.5 SP1
    • Visual Studio 2008 SP1
    • Expression Blend 2.0
net framework roadmap
.NET Framework Roadmap

.NET Framework 3.5 SP1

WPF Enhancements

Other Enhancements (ASP.NET, etc.)

.NET Framework 3.5

WPF 3.5


Add-in Framework

WF & WCF Enhancements

.NET Framework 3.0






.NET Framework 2.0



Base Class Library

WinForms/ ASP.NET

wpf in a nutshell
WPF in a nutshell
  • Rich Windows Applications
  • Great Architecture + Great Graphics
  • Rapid Prototyping
  • 2D, 3D, Vector, Document Flow, Layouts, Composition, etc.
net client profile
.NET Client Profile
  • ~25MB Client-only Subset of .NET Fx
    • Includes WinForms, WPF, LINQ, etc.
    • Excludes ASP.NET, WCF, etc.
  • 200KB fully customizable Bootstrapper
n et framework client profile

.NET Framework Client Profile

Using the Client Profile Deployment option in Visual Studio 2008 SP1

wpf 3 0 graphics recap
WPF 3.0 Graphics Recap
  • Rich set of 2D drawing primitives
  • Basic 3D functionality via Viewport3D
  • Rich Media Integration
  • Extensive Animation System
  • Advanced Text Stack
  • Bitmap Effects
  • Imaging
  • Compositor
wpf 3 5 graphics enhancements
WPF 3.5 Graphics Enhancements
  • True Interactive 2D-on-3D
  • Pixel Shaders Effects Model
    • Hardware-Accelerated
    • HLSL Support
  • DirectX Interop
  • Interop Bitmap
    • Replaces Writeable Bitmap
  • Faster Layered Window Support
  • Animation Fixes
graphics enhancements

Graphics Enhancements

Interactive 2D on 3D

Pixel Shader Effects

new controls
New Controls
  • Web Browser Control
    • Interop between HTML and WPF content
    • WPF -> HTML
        • WPF application can call script methods in HTML with WebBrowser.InvokeScript
    • HTML -> WPF
        • Script in HTML can call methods and access properties on WebBrowser.ObjectForScripting that are COM-Visible with window.external
  • Load hosted HTML content from a stream or string
  • Access the document object loaded in the WebBrowser
new controls12
New Controls
  • DataGrid Control
    • Available from WPF Toolkit (www.codeplex.com/wpf)
    • CTP Release with several features, being further improved upon
  • Ribbon-UI Control
    • Part of a future release with other controls and style templates
performance enhancements
Performance Enhancements
  • Greatly improved cold start time
    • >15% cold start gains for small apps
    • >35% cold start gains for large apps
  • XBAP cold start improvements (real + perceived)
    • ~10% faster XBAP cold start in addition to gains above by improving the concurrency of the ClickOnce download sequence
    • Instant (HTML) download progress UX to improves perceived XBAP startup
performance enhancements14
Performance Enhancements
  • Splash Screen to improve perceived startup for Standalone apps
    • New public SplashScreen APIs
    • Intuitive VS integration (3 clicks to enable)
    • “Add / New Item…/SplashScreen (WPF)”
    • Sample code available for existing apps or for downleveltargeting
    • Downloadable VS Template from WPF Futures (www.codeplex.com/wpf)
perf tools
Perf Tools
  • Snoop
    • Generally useful to understand your app, view element tree.
  • WPFPerf Suite
    • Perf “power toy”, a set of diagnostic tools
  • Visual Studio Profiler
    • Great for CPU profiling
    • VS Developer Edition and VS Team Suite
  • CLR Profiler for .NET
    • Shows managed memory usage and leaks
perf tools snoop
Perf ToolsSnoop
  • Use to understand the size of the app Visual tree
  • Useful to detect Virtualization related issues & large app trees
perf tools snoop17
Perf ToolsSnoop
  • Customer app lessons learned:
    • Watch for conditions that may turn virtualization off:
      • Make sure ScrollViewer.CanContentScroll=True
      • Make sure VirtualizingStackPanel.IsVirtualizing=True
      • Keep VirtualizingStackPanel as your default panel …or write own virtualized panel.
      • Avoid Grouping
    • # of elements can grow also when using rich templates
      • Use Snoop to watch element count
perf tools wpf perf suite
Perf ToolsWPF Perf Suite
  • Available for external download (WPF SDK & forums)
  • Initial diagnosis of over-invalidation & software rendering
  • A set of tools:
    • Perforator: Analyzes general rendering behavior
    • Visual Profiler: Provides breakdown of an object's use of WPF services, such as rendering and layout
    • String profiler (new): Analyzes where strings are being allocated
    • Event Trace: Analyze events and generating event log files
    • Trace Viewer: Record, display, and browse ETW log files in a WPF user-interface format
perf tools wpf perf suite perforator
Perf ToolsWPF Perf Suite: Perforator
  • To detect low perf b/c SW rendering:
    • Tint SW rendering: Draws purple when falling back to SW (or when SW api used, old driver, card, layered windows on XP, etc)
    • # SW Render Targets: If not 0, significant perf problem (old card, layered windows on XP)
    • # HW Render Targets: # should be equal to the number of app windows times # of display adapters. Indicates app running in HW
  • Low perf indicators
    • Large # of Intermediate Render Targets: additional images that WPF needs in order to get content ready for drawing
    • Maximum SW/HW IRTs per Frame:Shows max # of surfaces needed to render any one frame of the application. Usually caused by the use of DrawingBrush, VisualBrush, Opacity, or Tile modes on a TileBrush. If # high (e.g. > 7), indicates a potential perf issue
perf tools wpf perf suite visual profiler
Perf ToolsWPF Perf Suite: Visual Profiler
  • Inspect the Visual Tree
    • Show “hot path” of layout time: Tints the elements in the tree based on their time spent in layout
    • Shows inclusive/exclusive times and element counts
    • History graph of time breakdown: Helps identify whether an application’s bottlenecks lie in layout, rendering, animation, etc
perf tools etw event trace event trace viewer
Perf ToolsETW Event Trace & Event Trace Viewer
  • Useful to view low-level WPF ETW events.

WClientUceNotifyPresent: Use to calculate frames-per-second rendering perf (e.g. during animation, video, etc)

WClientLayout: Use to calculate time app spends in laying out controls (e.g. during resize)

  • Can also use Xperf/Xperfinfo


WPF 3.5 Application

Running Snoop on photoSuru

  • What’s new in WPF 3.5 SP1?


  • Introducing .NET Framework Client Profile


  • Optimizing WPF App Performance MSDN paper


  • Snoop tool


  • Various performance related blog


  • Blog Address


  • Email Address