Explanation of code in c#

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Hi,

When I am trying to use some thing like this

C#

OleDbDataAdapter command = new OleDbDataAdapter();

               command.Fill(dataSet);
               connection.Close();

I am getting a exception like below.
Details: The SelectCommand property has not been initialized before calling 'Fill'

How to solve this problem??

Thanks
John

Posted 28-Nov-13 1:42am

Member 10408451

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agent_kruger · Answer 1 · 2013-11-29T01:21:00

Solution 4

one is

command.SelectCommand = "Your query";

and second is connection path to your database

Posted 29-Nov-13 1:21am

agent_kruger

phil.o · Answer 2 · 2013-11-28T01:47:00

Solution 1

The error you get is pretty self explanatory: you have to initialize the SelectCommand property of your command variable before trying to call its Fill() method.
This way:

C#

command.SelectCommand = "SELECT [myField] FROM [IShouldReadErrorMessagesMoreCarefully]";

Posted 28-Nov-13 1:47am

phil.o

Maciej Los · Answer 3 · 2013-11-28T01:49:00

Solution 2

Please, visit this site: OLEDB Tutorial (C#)[^]. There you'll find what you're looking for ;)

Posted 28-Nov-13 1:49am

Maciej Los

C@dER@j · Answer 4 · 2013-11-29T00:41:00

Solution 3

Select Command is missing for this Connection object.

Posted 29-Nov-13 0:41am

C@dER@j