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Old June 27th, 2007, 12:23 AM
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Default Inheriting SqlDataReader and new KeyWord

Hi Everyone ,

 Help Required :)

I want to know
y cant we inherit SqlDataReader Class
and y cant we use new keyword for SqlDataReader Class


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Old June 27th, 2007, 12:47 AM
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also if we c in IDE There is no Sealed Keyword written for
sqlDataReader Class.
but in examples given on net Sealed Keyword is there .

Quite Confusing :(

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Old June 28th, 2007, 08:17 AM
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The data access classes are responsible for the creation of their data readers (i.e. *Command.ExecuteReader() ). You can't do anything with a data reader by itself, it must come from the execution of a query. In the case of the SqlDataReader, and most likely the other flavors, there is no public constructor which renders the class non-derivable.

What are you trying to achieve by deriving this class?

-Peter
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