why cant SqlDataReader class be inherited?

Question

SqlDataReader class is not marked sealed then what makes it uninheritable?

Why do you want to inherit from it? Use extension methods instead! — Steven
– Steven, Commented May 7, 2011 at 14:57
i dont want to inherit it. just noticed that its not marked sealed but said to be uninheritable so just asked. — vatspoo
– vatspoo, Commented May 8, 2011 at 10:28

Matthew Abbott · Accepted Answer · 2011-05-07 14:03:06Z

4

The SqlDataReader type's constructor is marked as internal which means it can only be instantiated through types in the System.Data.dll assembly. This also prohibits you from inheriting from it, as the base type cannot be instantiated.

answered May 7, 2011 at 14:03

Matthew Abbott

61.7k9 gold badges108 silver badges131 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Quick Joe Smith · Accepted Answer · 2011-05-07 14:02:34Z

0

Its only constructor is marked as internal, so it cannot be called by any non-framework code.

answered May 7, 2011 at 14:02

Quick Joe Smith

8,2683 gold badges31 silver badges33 bronze badges

Collectives™ on Stack Overflow

why cant SqlDataReader class be inherited?

2 Answers 2

Comments

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related