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From: Markus Ohlenroth on 23 Jan 2009 09:24
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/library/ms723052(VS.85).aspx
>
> and
>
> http://msdn.microsoft.com/en-us/library/ms722704(VS.85).aspx
>
>
> mfG
> --> stefan <--
>
From: Stefan Hoffmann on 23 Jan 2009 10:25
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/Search/en-US/?query=DBCOLUMNFLAGS_ISNULLABLE&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 <--
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