I started using the PivotGrid today and I love it, great work.
Is it possible to override the DisplayName / Caption properties of the FieldInfos.RootFieldInfo.Children in code behind after the ItemSource has been set?
Thank you very much for your words. Our team is working really hard to provide all needed features and we are very happy when our customers send us such a great feedback.
Now straight to your question - RadPivotGrid supports DataAnnotations and you'll be able to change the display name in a very easy manner. You can check our article here how to achieve this. I'm also sending you a simple project which you can use for your reference. Please note that you'll have to download one of our latest internal builds to be able to use DataAnnotations with RadPivotGrid.
Thanks for choosing RadPivotGrid. Do not hesitate to contact us if you have any problems, concerns or suggestions.