What is navigation property in entity framework? [Resolved]

In the case of a RDMBS we have various kinds of relationships among the entities like

- One to One
- One to Many
- Many to Many.

We create those relations among the tables via PK and FK . These key's becomes the navigational keys for the tables to establish the relationships among themselves. (you can refer to an answer given by me in DNF forum about that http://www.dotnetfunda.com/forums/show/20876/database-management-system ).

In a similar way, in EF, a navigation property allows to navigate from one entity to another entity. A few day's back I have given answer to one of your question in DNF ( http://www.dotnetfunda.com/forums/show/20879/what-is-code-first-migrations-in-mvc-and-what-is-procedure-to-do-code ).

In that example , the below line of code does the navigation

modelBuilder.Entity<Department>().HasRequired(d => d.Department).WithMany().HasForeignKey(e => e.EmpID);

For more info: https://msdn.microsoft.com/en-us/library/bb738520.aspx

Hope this helps.

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Kumarkrishna184, if this helps please login to Mark As Answer. | Alert Moderator

Wow Sir, Your way of explaining is very simple that' s reason i am able to understand very easily.Thanks sir......

Thanks and Regards,
Krishna Kumar

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