WPF Performance Tipps

ItemsControls

• Simplify your Template to reduce the number of visuals created
• Use a VirtualizingStackpanel as ItemsPanel
• Set the VirtualizingStackPanel.IsVirtualizing property to True
• Virtualization works only if:
  • The items are generated automatically using the ItemsSource property
  • CanContentScroll is set to False
  • Grouping is disabled
  • Set the IsDeferredScrollingEnabled property on the ScrollViewer to True to enable deferred scrolling

XAML

• Freeze freezable objects if you don't need to change any properties of them by writing PresentationOptions:Freeze="True".

Resources

• Use cached resource dictionaries to avoid loading them each time you reference it.

 Comments on this article

Sean	Commented on 24.April 2009 I like the suggestions. However, there are a few spelling mistakes. Thanks.
Theo Zographos	Commented on 19.May 2009 Nice tips. It would be helpful if you mentioned some tips regarding the use of Visuals instead of controls/elements higher in the hierarchy.
Ariel	Commented on 12.August 2009 What about migrating our client applications developed on C#, using System.Data.SqlClient accessing ot Sql Server 2005 databases? Shall we start now?
Daniel	Commented on 29.January 2010 I don't understand what you mean by "cached resource dictionaries" can you please provide a small example?
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