Using Enum

[Tiraman]

Hi ,

I have 2 Questions About Using Enum

1) i have the following Enum under my class but if i need to use it i must
use it like this

ConstantsFileSy stem.CREATE_FIL E

how can i use it just by the const name by doing like this CREATE_FILE

Public Enum ConstantsFileSy stem

CREATE_FILE = 0

APPEND_FILE = 1

OVERWRITE_FILE = 2

End Enum

2) is it good to use Enum for public params which i need to use all over my
Assemblies ? (if not please recommend a better way)
Best Regards ,

Tiraman :-)

[Herfried K. Wagner [MVP]]

* "Tiraman" <ti*****@netvis ion.net.il> scripsit:

I have 2 Questions About Using Enum

1) i have the following Enum under my class but if i need to use it i must
use it like this

ConstantsFileSy stem.CREATE_FIL E

how can i use it just by the const name by doing like this CREATE_FILE

Public Enum ConstantsFileSy stem

CREATE_FILE = 0

APPEND_FILE = 1

OVERWRITE_FILE = 2

End Enum
'Imports ConstantsFileSy stem' on top of the file in which you want to
use the constants without qualifying them (I am not sure that this makes
much sense).
2) is it good to use Enum for public params which i need to use all over my
Assemblies ? (if not please recommend a better way)

Why not?

--
Herfried K. Wagner [MVP]
<URL:http://dotnet.mvps.org/>

[Armin Zingler]

"Tiraman" <ti*****@netvis ion.net.il> schrieb

Hi ,

I have 2 Questions About Using Enum

1) i have the following Enum under my class but if i need to use it i
must use it like this

ConstantsFileSy stem.CREATE_FIL E

how can i use it just by the const name by doing like this
CREATE_FILE

Public Enum ConstantsFileSy stem

CREATE_FILE = 0

APPEND_FILE = 1

OVERWRITE_FILE = 2

End Enum
Why? CREATE_FILE and the other constants could also be part of another Enum.
In addition, auto-complete automatically inserts the full name, so I don't
see the problem.

(BTW, there is System.IO.FileM ode already)
2) is it good to use Enum for public params which i need to use all
over my Assemblies ? (if not please recommend a better way)

Well, I think it's good. :-)
--
Armin

How to quote and why:
http://www.plig.net/nnq/nquote.html
http://www.netmeister.org/news/learn2quote.html

[Tiraman]

Hi,

Well you are right .
i added the import in the top of my assembly and i added a reference to the
file which is a regular TLB file and not a DOT NET file !
And now its ok .

BUT when i m trying to compile my DLL i m getting the following error :

vbc : error BC31011: Unable to load referenced library
'c:\DLL\NanaCon stants.tlb': System Error &H8013110b&
c:\DLL\NanaCons tants.tlb : error BC31011: Unable to load referenced
library 'c:\DLL\NanaCon stants.tlb': System Error &H8013110b&
vbc : error BC30142: Unable to generate a reference to file
'c:\DLL\NanaCon stants.tlb'
(use TLBIMP utility to reference COM DLLs): unable to load
international DLL: VBC7ui.dll
C:\Components\G eneral.vb(6) : error BC30466: Namespace or type
'ConstantsFileS ystem' for the Imports 'NanaLib.Consta ntsFileSystem' cannot
be found.

Imports NanaLib.Constan tsFileSystem
~~~~~~~~~~~~~~~ ~~~~~~~~~~~~
C:\Components\G eneral.vb(93) : error BC30451: Name 'naCREATE_FILE' is
not declared.

Optional ByVal Method As Integer =
naCREATE_FILE, _

~~~~~~~~~~~~~

"Herfried K. Wagner [MVP]" <hi************ ***@gmx.at> wrote in message
news:c6******** ****@ID-208219.news.uni-berlin.de...

* "Tiraman" <ti*****@netvis ion.net.il> scripsit:

I have 2 Questions About Using Enum

1) i have the following Enum under my class but if i need to use it i must use it like this

ConstantsFileSy stem.CREATE_FIL E

how can i use it just by the const name by doing like this CREATE_FILE

Public Enum ConstantsFileSy stem

CREATE_FILE = 0

APPEND_FILE = 1

OVERWRITE_FILE = 2

End Enum

'Imports ConstantsFileSy stem' on top of the file in which you want to
use the constants without qualifying them (I am not sure that this makes
much sense).

2) is it good to use Enum for public params which i need to use all over my Assemblies ? (if not please recommend a better way)

Why not?

--
Herfried K. Wagner [MVP]
<URL:http://dotnet.mvps.org/>

[Tiraman]

Hello Armin ,

you are right about the FileMode but i m asking in general
lets say that i have my own Enum but they are all in an old TLB file (which
is not in .NET) and i read that i can import and reference it to my project
and then it will be recognized all over which is true but as i wrote b4 i m
have problems with the compilation .

10x
"Armin Zingler" <az*******@free net.de> wrote in message
news:40******** *************** @news.freenet.d e...

"Tiraman" <ti*****@netvis ion.net.il> schrieb

Hi ,

I have 2 Questions About Using Enum

1) i have the following Enum under my class but if i need to use it i
must use it like this

ConstantsFileSy stem.CREATE_FIL E

how can i use it just by the const name by doing like this
CREATE_FILE

Public Enum ConstantsFileSy stem

CREATE_FILE = 0

APPEND_FILE = 1

OVERWRITE_FILE = 2

End Enum
Why? CREATE_FILE and the other constants could also be part of another

Enum. In addition, auto-complete automatically inserts the full name, so I don't
see the problem.

(BTW, there is System.IO.FileM ode already)

2) is it good to use Enum for public params which i need to use all
over my Assemblies ? (if not please recommend a better way)

Well, I think it's good. :-)
--
Armin

How to quote and why:
http://www.plig.net/nnq/nquote.html
http://www.netmeister.org/news/learn2quote.html

[Armin Zingler]

"Tiraman" <ti*****@netvis ion.net.il> schrieb

Hi,

Well you are right .
i added the import in the top of my assembly and i added a reference
to the file which is a regular TLB file and not a DOT NET file !
And now its ok .
How did you add the reference? Either use "add reference" -> COM tab, or use
the tlbimp tool to create an interop wrapper dll that can be referenced by
pressing the "browse" button on the first folder of the "add reference"
dialog.
BUT when i m trying to compile my DLL i m getting the following error
:
vbc : error BC31011: Unable to load referenced library
'c:\DLL\NanaCon stants.tlb': System Error &H8013110b&
c:\DLL\NanaCons tants.tlb : error BC31011: Unable to load
referenced
library 'c:\DLL\NanaCon stants.tlb': System Error &H8013110b&
vbc : error BC30142: Unable to generate a reference to file
'c:\DLL\NanaCon stants.tlb'
(use TLBIMP utility to reference COM DLLs): unable to load
international DLL: VBC7ui.dll
C:\Components\G eneral.vb(6) : error BC30466: Namespace or type
'ConstantsFileS ystem' for the Imports 'NanaLib.Consta ntsFileSystem'
cannot be found.

Imports NanaLib.Constan tsFileSystem
~~~~~~~~~~~~~~~ ~~~~~~~~~~~~
C:\Components\G eneral.vb(93) : error BC30451: Name
'naCREATE_FILE' is
not declared.

Optional ByVal Method As Integer =
naCREATE_FILE, _

--
Armin

[Herfried K. Wagner [MVP]]

* "Tiraman" <ti*****@netvis ion.net.il> scripsit:

i added the import in the top of my assembly and i added a reference to the
file which is a regular TLB file and not a DOT NET file !
And now its ok .

The enum is defined inside a COM DLL?

--
Herfried K. Wagner [MVP]
<URL:http://dotnet.mvps.org/>

[Tiraman]

well
first let me say that every thing ok now :-)
i used the tlbimp tool in order to convert the COM TLB
in to assembly and i put that assembly in the GAC
And now i m using it all over :-)

So 10x again to both of you .

Bye

"Armin Zingler" <az*******@free net.de> wrote in message
news:40******** *************@n ews.freenet.de. ..

"Tiraman" <ti*****@netvis ion.net.il> schrieb

Hi,

Well you are right .
i added the import in the top of my assembly and i added a reference
to the file which is a regular TLB file and not a DOT NET file !
And now its ok .
How did you add the reference? Either use "add reference" -> COM tab, or

use the tlbimp tool to create an interop wrapper dll that can be referenced by
pressing the "browse" button on the first folder of the "add reference"
dialog.

BUT when i m trying to compile my DLL i m getting the following error
:
vbc : error BC31011: Unable to load referenced library
'c:\DLL\NanaCon stants.tlb': System Error &H8013110b&
c:\DLL\NanaCons tants.tlb : error BC31011: Unable to load
referenced
library 'c:\DLL\NanaCon stants.tlb': System Error &H8013110b&
vbc : error BC30142: Unable to generate a reference to file
'c:\DLL\NanaCon stants.tlb'
(use TLBIMP utility to reference COM DLLs): unable to load
international DLL: VBC7ui.dll
C:\Components\G eneral.vb(6) : error BC30466: Namespace or type
'ConstantsFileS ystem' for the Imports 'NanaLib.Consta ntsFileSystem'
cannot be found.

Imports NanaLib.Constan tsFileSystem
~~~~~~~~~~~~~~~ ~~~~~~~~~~~~
C:\Components\G eneral.vb(93) : error BC30451: Name
'naCREATE_FILE' is
not declared.

Optional ByVal Method As Integer =
naCREATE_FILE, _

--
Armin