Entity Framework Code-first (9.2): Dataannotations-timestamp Attribute

Dataannotations-timestamp Attribute:

TimeStamp attribute can is applied to only one byte array property of a domain class. TimeStamp attribute creates a column with TimeStamp datatype. Code-first automatically use this TimeStamp column in concurrency check.

Consider the following example.

usingSystem.ComponentModel.DataAnnotations; Public classstudent{ PublicStudent () {} Public intStudentkey {Get;Set; }  Public stringStudentname {Get;Set; } [TimeStamp] Public byte[] RowVersion {Get;Set; }} 

As you can see in the above example, TimeStamp attribute are applied to byte[] property of the Student class. So, Code first would create a timestamp column RowVersion in the Student table as shown below.

Entity Framework Code-first (9.2): Dataannotations-timestamp Attribute