At 03:31 AM 15/09/2003 +0000, you wrote:

>I have tried to write a program use ado.net provide by firebird,
>I have create a connection and use the connection execute a command
>return a DataReader, I proceed the DataReader in a loop, I create
>another command use the same connection and I want to get the data
>according the first datareader's value, but when I call
>cmd.ExecuteScalar(), exception occurs, the exception's message is
>
>"There is already an open DataReader associated with this Connection
>which must be closed first"
>
>I wonder to know, can a connection object has some DataReader objects
>same time?
>
>Or how can I solve the problem?
>
>any help are appreciate

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