2011-3-1 22:15:19ExecuteReader requires an open and available Connection. The connection's current state is closed.


2011-3-1 22:15:19不能使用 ''；文件已在使用中。


2011-3-1 22:15:19ExecuteReader requires an open and available Connection. The connection's current state is closed.


2011-3-1 22:15:19不能使用 ''；文件已在使用中。


2011-3-1 22:15:19ExecuteReader requires an open and available Connection. The connection's current state is closed.


2011-3-1 22:15:19不能使用 ''；文件已在使用中。


2011-3-1 22:15:19ExecuteReader requires an open and available Connection. The connection's current state is closed.


2011-3-1 22:15:19不能使用 ''；文件已在使用中。


2011-3-1 22:15:19ExecuteReader requires an open and available Connection. The connection's current state is closed.


2011-3-1 22:15:19不能使用 ''；文件已在使用中。


2011-3-1 22:15:19ExecuteReader requires an open and available Connection. The connection's current state is closed.


2011-3-1 22:15:20不能使用 ''；文件已在使用中。


2011-3-1 22:15:20ExecuteReader requires an open and available Connection. The connection's current state is closed.


2011-3-1 22:15:20不能使用 ''；文件已在使用中。


2011-3-1 22:15:20ExecuteReader requires an open and available Connection. The connection's current state is closed.


2011-3-1 22:15:20不能使用 ''；文件已在使用中。


2011-3-1 22:15:20ExecuteReader requires an open and available Connection. The connection's current state is closed.


2011-3-1 22:15:20不能使用 ''；文件已在使用中。


2011-3-1 22:15:20ExecuteReader requires an open and available Connection. The connection's current state is closed.


9/17/2012 4:16:31 PMThe 'microsoft.jet.oledb.4.0' provider is not registered on the local machine.


9/17/2012 4:16:31 PMExecuteReader requires an open and available Connection. The connection's current state is closed.