hat is cross-page posting? Server.Transfer() method is used for posting the data from one page to another.
In cross page posting, data collected from different pages and will be displayed in single page. So, for doing this we need to set “PostBackUrl” property of the control, in which target page is specified and in target page we can use “PreviousPage” property. For doing this we need to set the directive - @PreviousPageType. Previous page control can be accessed from the method – “FindControl()”.
How can we handle concurrency in Entity Framework? Note: Before this question, the interviewer can ask you about concurrency and what is pessimistic and optimistic locking. Please do refer to the ADO.NET chapter for those. In EF, concurrency issue is resolved by using optimistic locking. Please refer to the ADO.NET chapter for what is optimistic locking and pessimistic locking? To implement optimistic locking, right click on the EDMX designer and set the concurrency mode to Fixed, as shown in the below figure.
