Drag fill behavior for the XamDataGrid would be a feature request as it isn't built into the control. For this you should reach out to Infragistics through either the forums or a support case. You can find links to each from the get help page: http://www.infragistics.com/support/get-help.aspx.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.