Girls and guys,
WPF DataGrid with full source code is here.
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The WPF Toolkit is a collection of WPF features and components that are being made available outside of the normal .NET Framework ship cycle. The WPF Toolkit not only allows users to get new functionality more quickly, but allows an efficient means for giving feedback to the product team. Many of the features will be released with full source code as well. The Toolkit Roadmap outlines some of the upcoming features we have planned.
Details here: http://www.codeplex.com/wpf
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