error 'there is already an open datareader associated with this command which must be closed first'

Question

runtime error \'there is already an open datareader associated with this command which must be closed first\'

objCommand = new SqlCommand(\"SELECT field1, fi         


        

Answer 1

You can't perform an action on that connection while it's still working on reading the contents of a data reader - the error is pretty descriptive.

Your alternatives are:

1) Retrieve all your data first, either with a DataSet or use the reader to populate some other collection, then run them all at once after the initial select is done.

2) Use a different connection for your insert statements.