Infragistics NetAdvantage for WPF Express (aka free grid)
So WPF has been shipping for almost a year but there is no Microsoft DataGrid for WPF; you have to purchase one. Infragistics is in the component business and we've delivered on providing a DataGrid and a host of other controls for WPF. When we shipped our WPF product in April, we created a separate SKU that we gave to MSDN subscribers, many of whom may not have been Infragistics customers and called it an Express SKU. This Express SKU is a fully functional version of our XamDataGrid and the expectation was set that we would do bug fixes and you could use our forums to ask questions about it, but we would not be adding any additional functionality. It was a gesture of good will to the MSDN subscriber to give them a DataGrid in WPF that had a stable feature set and could achieve the basic needs achievable by a simple datagrid. (Of course, we also threw in the rest of the Grid features in the V1 release including: Outlook Group-By and the support of Hierarchical Data).
And It's now September, we're gearing up to ship our next iteration of the WPF product (download the XamChart CTP) and the Express Grid rises up again and we were faced with the question of what Product Management plans to do with it. And the end result, is that we've decided to give it away for free to everyone and recompile/test it with the latest hotfix already installed. It's available now and you can grab it here.
Lastly, let me mention that the latest hotfix has some really cool work added to it. The WPF team basically spent a lot of time looking at performance and I'm pleased with the latest results. So, if you're using our WPF product; I'd greatly urge you to grab the latest hotfix and experience some notable performance gains.