Hello, This is in regards to SharePoint 2007 Currently when a user is editing a list Item, it will not allow another user to edit the same item. SharePoint throw an error. Is there away to notify the other user saying the item cannot be edited? something like a warning? Thank you

SharePoint list item editing is designed with optimistic concurrency control as what you described. Another alternative model is pessimistic concurrency control as you want. SharePoint document library, if require checkout before editing option is set, is an example of pessimistic concurrency control, it use editing lock. The problem with pessimistic concurrency model is that if user A opens an list item for editing and leave for lunch, user B will not be able to edit the list item. And what if user A opens a list item for editing and then the computer just crash. BTW, “SharePoint show an error” you mentioned is not an error actually, it is an informative message tell you to click Back in web browser, copy out what you have modified if the modified content is long, refresh the page, re-apply the change and re-submit. It would be best if it is followed by a conflict merging interface to facilitate this process, unfortunately, we don’t have it now. Gu Yuming TechNet Subscriber Support in forum If you have any feedback on our support, please contact tngfb@microsoft.com

SharePoint_CP: NEVER post the same question to more than one forum. It wastes everyones' time. I have deleted the duplicate thread in Dev/Programming. (Moderator)FAQ sites: (SP 2010) http://wssv4faq.mindsharp.com; (v3) http://wssv3faq.mindsharp.com and (WSS 2.0) http://wssv2faq.mindsharp.com Complete Book Lists (incl. foreign language) on each site.