Get the Sharepoint 2010 Maximum List ID

Question

Hi Everyone,
I am facing one issue, in sharepoint 2010 list.
I have 10 SP List I want the maximum number (ID) of every List
For Example:- If any user make an entry in List A and it's ID is 10
If another User make an entry in List B then it's ID Should be 11.
Regards Sourabh Soni

Answer 1

Hi,
Besides the workflow way provided by Romeo, an alternative I can provide is that, you can also use
Event Receiver with SharePoint Object Model which can help to implement more complex requirements.
With Event Receiver, we can catch the moment when an item is added to a list which can help to run our custom code in the right timing.
Here is a step by step sample on creating a simple Item added event receiver for Custom List in SharePoint 2010:
http://msdn.microsoft.com/en-us/library/ff398052.aspx
More information on Event Receiver for your reference:
http://msdn.microsoft.com/en-us/library/gg749858(v=office.14).aspx
http://msdn.microsoft.com/en-us/library/ff408183(v=office.14).aspx
SharePoint Object Model will be helpful when we need to access SharePoint objects:
SharePoint Object Model -
SPListItem class
http://msdn.microsoft.com/en-us/library/microsoft.sharepoint.splistitem.aspx 
Add, Update and Delete List Items Programmatically in SharePoint
http://www.mindfiresolutions.com/Add-Update-and-Delete-List-Items-Programmatically-in-Sharepoint-372.php 
More information about
SharePoint Object Model:
http://msdn.microsoft.com/en-us/library/ms473633.ASPX
Best regards,
Patrick
Patrick Liang
TechNet Community Support