Define LINQ To Entities

LINQ to Entities provides Language-Integrated Query (LINQ) support for querying entities.

LINQ to Entities enables developers to write queries against the database using one of the supported .NET Framework programming languages such as Visual Basic or Visual C#.

Purpose of the MustInherit keyword in VB.NET

MustInherit keyword in VB.NET is used to create an abstract class.

prevent inheritance of a class in .NET

Use the keyword NotInheritable in VB.NET and sealed in C#.