I have got a live testing version of a SharePoint 2010 based room & reservations bookings template (which I promise I will one day finish!). Randomly, users were getting an error on their screens though. Unable to display this Web Part. To troubleshoot the problem, open this Web page in a Microsoft SharePoint Foundation-compatible HTML
Continue reading Sharepoint 2010: Unable to Display This Web Part. Error while executing web part: System.StackOverflowException: Operation caused a stack overflow.