In this tutorial i will show how to resolve the error "Unable to update the EntitySet because it has a DefiningQuery and no element exists in the element to support the current operation".
I just got experience this issue with MVC5 in visual studio 2015 for web, finally I found solution adding entity framework to my project.
This error is happening when the entity table having more than one primary key value in the .edmx file.
In this article, I will show you how to create password encryption and decryption in c# asp.net. I am going to encrypt password before saving using the entity framework sql server.