I created a XamWebGrid with 6 columns, including 2 DateColumns. I noticed that if I type a date into the control and tab away, the value passed into the DataBound object for either of the DateColumn properties is not the value typed. If I press "Enter" and then tab away, the value passed into the DataBound object for either of the DateColumn properties *is* the value typed.
Is this a bug in the Grid? Or maybe a bug in the Silverlight DatePicker?
I tried out your issue here, and could not reproduce your results. Are you using the Service Release dlls or the Release dlls?