Congratulations - C# Corner Q4, 2022 MVPs Announced
Why Join
Become a member
Login
No unread comment.
View All Comments
No unread message.
View All Messages
No unread notification.
View All Notifications
Answers
Post
An Article
A Blog
A News
A Video
An EBook
An Interview Question
Ask Question
C# Corner Home
Technologies
Monthly Leaders
ASK A QUESTION
Forum guidelines
Yadlapalli Srikanth
1.9k
272
79.7k
mvc multiple tables in single context entity framework
Jun 27 2014 11:31 PM
Dear All,
I am learning Mvc, In db context i added one more dbset,it is working fine when it is with one dbset but when i added one more Dbset getting the below error.Kindly suggest me how to work with multiple tables with in one Dbcontext
public class EmployeeContext:DbContext
{
public DbSet<Employee> Employees { get; set; }
public DbSet<Department> Departments { get; set; }
}
error
An exception of type 'System.Data.Entity.ModelConfiguration.ModelValidationException' occurred in EntityFramework.dll but was not handled in user code
Additional information: One or more validation errors were detected during model generation:
MVCP.Models.Department: : EntityType 'Department' has no key defined. Define the key for this EntityType.
Departments: EntityType: EntitySet 'Departments' is based on type 'Department' that has no keys defined.
Reply
Answers (
3
)
Opeing non mdi form
Form not allowed to move or choose another form in C# ?