Answers for "there is already an open datareader associated with this conne ction which must be closed first."

c# datareader already open visual studio mysql

// Always, always, always put disposable objects inside of using statements:
using (Connection c = ...)
{
    using (DataReader dr = ...)
    {
        //Work with dr in here.
    }
}
//Now the connection and reader have been closed and disposed.

Posted by: Guest on February-01-2021

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Answers for "there is already an open datareader associated with this conne ction which must be closed first."

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Answers for "there is already an open datareader associated with this conne ction which must be closed first."

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