When I tried to run the application I got the following error it was resolved. You need to use the result of the query as datasource for your combobox.
We can use metadata to add functionality to entities by adding properties in a metadata class with attributes that we can affect the behavior of entities implemented with partial class called metadata classes.
A Linq query is translated to SQL to be performed against the database. Make sure you need to assign session or form request to a variable first and use this variable in the query
You should make sure that the file path passing to delete from the server in asp.net c#. This following code is to delete the record from database and also from the folder path of the server.