[dba-VB] Application settings

Hi Gustav --

No, PropertyName can't be appended and saved if it doesn't exist as they are
compile-time (early) bound - but JC asked exactly about existing properties
defined in VS2008 project settings, and they can be changed and saved if
they have "User" scope.

Yes, I guess they are saved somewhere in AppData but I do not know where...

--
Shamil

-----Original Message-----
From: dba-vb-bounces at databaseadvisors.com
[mailto:dba-vb-bounces at databaseadvisors.com] On Behalf Of Gustav Brock
Sent: Saturday, December 05, 2009 12:40 AM
To: dba-vb at databaseadvisors.com
Subject: Re: [dba-VB] Application settings

Hi Shamil

Yes, but is PropertyName appended and saved if it didn't exist?

Isn't the data saved under the user profile somewhere in AppData? I haven't
look closer at this though.

/gustav



>>> shamil at smsconsulting.spb.ru 04-12-2009 21:33 >>>
Hi Gustav,

You can set 

Properties.Settings.Default.{{PropertyName}} = {{SomeValue}};

and save settings having "User" scope:

Properties.Settings.Default.Save();    

And they are saved not in {{ApplicationExecutableFileName}}.config, which
you deliver with you app's executable but anywhere else on your system -
probably somewhere in user's Application Settings - standard windows folder.
I have never had time to find out where settings are saved. Anybody?

Recap:

- settings are loaded from {{ApplicationExecutableFileName}}.config when you
deliver you application, and it runs first time;
- as soon as you save "User" scope settings they are saved in and loaded
from {{UnknownPlace}};
- if you move your application files into another folder on the same system
the settings are again loaded on first run from
{{ApplicationExecutableFileName}};
- ...

That looks confusing a bit but it's how it works...

You can click "Learn more about application settings..." on top right of
VS2008 application settings window available by Solution Explorer -> Project
name -> Right-Click -> Settings...

But if you wanted to have rather complicated structure of your application
settings file then better use your own custom XML files, which can be loaded
from/saved to files many ways without almost any coding...

Thank you.

--
Shamil


-----Original Message-----
From: dba-vb-bounces at databaseadvisors.com 
[mailto:dba-vb-bounces at databaseadvisors.com] On Behalf Of Gustav Brock
Sent: Friday, December 04, 2009 8:25 PM
To: dba-vb at databaseadvisors.com 
Subject: Re: [dba-VB] Application settings

Hi John

Shamil is right, but that method is for reading only.
Please note that the Properties' collection object is read-only, thus it
takes quite a few steps to add a property:

http://social.msdn.microsoft.com/Forums/en-US/csharpgeneral/thread/c52b4fc6-

66be-44ce-8a65-ab548f6f4f04

I have not used this as I haven't had any need to add properties on the fly.
Reading and writing was fine for me, and new properties I added manually.

You may find it much easier and perhaps more convenient to just have a
dataset which you read and write from/to an XML-file. I've posted code for
this before.

/gustav


>>> jwcolby at colbyconsulting.com 04-12-2009 17:33 >>>
Under the project is a properties object.  Double click that and an entire
multi-tabbed dialog opens.

Click the settings tab.  There you will see a form where you can enter name,
type, scope, value.

As far as I can tell this is a place where I (the developer) can create
settings that my program 
will use and manipulate, settings (for example) to tell my program the name
of the SQL Server 
instance to use in a connection string, the name of my control database
where I store my stored 
procedures and UDFs.  Stuff like that.  Stuff that I am currently hard
coding, but which really 
should be in a settings tab so that I don't have to remember where that
constant is in code, I can 
just go to the settings tab to change.

My expectation is that there is an object somewhere in the .net namespace
that allows you to do 
something like "Something.Somethingelse.Settings["MyServerName"]...." to
access these things.

I expect to be able to create new ones, edit existing ones, delete them etc
from a .Net object.  I 
am looking for that .Net syntax that allows me to do this from code.

John W. Colby
www.ColbyConsulting.com 



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