GetOleDbSchemaTable(OleDbSchemaGuid.Columns,...

thanks Stefan,
Yes, your links are what I needed.

In the refrence it says:
DBCOLUMNFLAGS Enumerated Type

Now I want do bitwise querying with the constants mentioned in the msdn
reference (Icolumnsinfo:getcolumninfo).

like eg. with
DBCOLUMNFLAGS_CACHEDEFERRED
or
DBCOLUMNFLAGS_ISFIXEDLENGTH


But I do not know how I can access these constants in my c# vs .net program?
through what class, library, namespace are these constants qualified?
Can you give me a hint?
thanks


wfg
Markus



"Stefan Hoffmann" wrote:

hi Markus,

Markus Ohlenroth wrote:
I work with visual studio, C# and read out metadata from access databases
via oledb
Now, your source gives me the clues I was missing, take a look at these:

http://msdn.microsoft.com/en-us/libr...52(VS.85).aspx

and

http://msdn.microsoft.com/en-us/libr...04(VS.85).aspx


mfG
-- stefan --

hi Markus,

Markus Ohlenroth wrote:
But I do not know how I can access these constants in my c# vs .net program?
through what class, library, namespace are these constants qualified?
http://social.msdn.microsoft.com/Sea...SNULLABLE&ac=8
http://msdn.microsoft.com/en-us/library/ms716934.aspx

typedef DWORD DBCOLUMNFLAGS;
enum DBCOLUMNFLAGSENUM {
DBCOLUMNFLAGS_ISBOOKMARK,
DBCOLUMNFLAGS_MAYDEFER,
DBCOLUMNFLAGS_WRITE,
DBCOLUMNFLAGS_WRITEUNKNOWN,
DBCOLUMNFLAGS_ISFIXEDLENGTH,
DBCOLUMNFLAGS_ISNULLABLE,
DBCOLUMNFLAGS_MAYBENULL,
DBCOLUMNFLAGS_ISLONG,
DBCOLUMNFLAGS_ISROWID,
DBCOLUMNFLAGS_ISROWVER,
DBCOLUMNFLAGS_CACHEDEFERRED,
DBCOLUMNFLAGS_SCALEISNEGATIVE,
DBCOLUMNFLAGS_RESERVED,
DBCOLUMNFLAGS_ISROWURL,
DBCOLUMNFLAGS_ISDEFAULTSTREAM,
DBCOLUMNFLAGS_ISCOLLECTION,
DBCOLUMNFLAGS_ISSTREAM,
DBCOLUMNFLAGS_ISROWSET,
DBCOLUMNFLAGS_ISROW,
DBCOLUMNFLAGS_ROWSPECIFICCOLUMN
};
I'm not sure, it's C/C++, but this should translate to the 2^order for
the bit values. But you better ask in a more C/C++ specific newsgroup.

Can you give me a hint?
hmm, I can, show more patience will searching in the MSDN .)


mfG
-- stefan --