When I recently tried to create a new SharePoint / WSS calendar view on a list that uses calculated columns for the both the start and end dates, I was greeted with the following error message:”Input string was not in a correct format”
After quite a bit of trawling the web (hence this blog post), it seemed to be a known issue in certain version of SharePoint / WSS. This particular server was already at SP2 (220.127.116.1121) so I decided to go ahead and install the latest CU - currently August 2010 (18.104.22.16845).
After installing the CU, rebooting and running through the farm configuration wizard, I recreated the calendar view and this time everything worked perfectly.
Here’s a handy reference to the available SharePoint hotfixes and version numbers.