Index Attribute:

Entity Framework 6 provides Index attribute to create Index on a particular column in the database as shown below:

class Student
{
public Student()
{
} public int Student_ID { get; set; }
public string StudentName { get; set; } [Index]
public int RegistrationNumber { get; set; }
}

By default, Index name will be IX_{property name}. However, you can also change the Index name.

You can also make it a Clustered index by specifying IsClustered = true and a unique index by specifying IsUnique=true.

[Index( "INDEX_REGNUM", IsClustered=true, IsUnique=true )]
public int RegistrationNumber { get; set; }

Download Code-First sample project for Index attribute demo.

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