How do I use ADO inside a control when writing an OCX control?

oni888

I want to encapsulate a series of operations using ADO to access the database in ADO, but I don't know how to use ADO when writing controls, can anyone tell me !!

oni888

Sorry, I want to encapsulate it in OCX (MFC) :)

深蓝旅者

#import directive can also be used in ocx
msdn2.microsoft.com/en-us/8etzzkb6.aspx-22k

oni888

#import "C:\Program Files\Common Files\System\ado\msado15.dll" rename_namespace("ARXADO") rename("BOF","adoBOF") rename("EOF","adoEOF")
This is my import, the compilation will not go wrong, but I define a _RecordsetPtr m_adoSet; he will tell me missing storage-class or type specifiers, please ask why

rsq666

Missing header files included.

oni888

oni888

What header file?
Who can give me a tested code example? As long as it can be introduced!!! Brother I am almost depressed.

oni888

深蓝旅者!!!! Can you give me some sample codes? Or see what is wrong with mine. Thank you!! 1

深蓝旅者

The problem with your code is that you specify the namespace when #import: ARXADO
Then bring it when you use it ARXADO::_RecordsetPtr
There are 2 other ways: use no_namespace when #import, or add under #import
using namespace ARXADO;

oni888

Using no_namespace, there is such an error:
e:\xgs\work\dataactivex\debug\msado15.tlh(171): error C2011:'LockTypeEnum':'enum' type redefinition
Use using namespace ARXADO,
He would say that there is no such a namespace as ARXADO
Using mine, there is nothing wrong with the call but it cannot be defined!!!!!
I have used ADO before. I have never seen such a problem. I don't know if there is a special way in OCX!!!!