DataAdapter.Fill in a shared class Error

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Hi all ,

I am using the DataAdapter.Fill method in a shared class which is generating an error due to the presence of opened datareaders at the same time and the error is :

"There is already an open DataReader associated with this Command which must be closed first."

So i tried to set Mars=true in the connections string but did not work.

Any suggestion ?

Thanks.

Posted 2-May-12 1:12am

mhamad zarif

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nktjain · Answer 1 · 2012-05-02T01:21:00

Solution 1

you can not fill the datareader with adapter so please use datatable or dataset

Posted 2-May-12 1:21am

nktjain

Sandeep Mewara · Answer 2 · 2012-05-02T03:05:00

Solution 2

DataReader is forward only, connected way to access data. So, you need to close the DataReader in order to do any other operation with the same connection.

Look at these:
Retrieving Data Using a DataReader (ADO.NET)[^]
DataReader Class[^]

Posted 2-May-12 3:05am

Sandeep Mewara