How to maintain user.config settings when upgrading?

[davepkz]

I have a basic question about managing user.config settings:

In my C# app, I save the user's preferences to the config file. But
each time I release a new build of the app, something in .NET creates a
new folder (named for the build number) in Documents And Settings. The
result is the users lose all their settings and have to start over.

What is the standard way to allow users to maintain their settings when
they get a new version of a .NET app?

thanks
Dave

[Mike Lowery]

<da*****@hotmai l.comwrote in message
news:11******** **************@ 75g2000cwc.goog legroups.com...

>I have a basic question about managing user.config settings:

In my C# app, I save the user's preferences to the config file. But
each time I release a new build of the app, something in .NET creates a
new folder (named for the build number) in Documents And Settings. The
result is the users lose all their settings and have to start over.

What is the standard way to allow users to maintain their settings when
they get a new version of a .NET app?

You could store them in a different file or use the registry.

[Carl Daniel [VC++ MVP]]

<da*****@hotmai l.comwrote in message
news:11******** **************@ 75g2000cwc.goog legroups.com...

>I have a basic question about managing user.config settings:

In my C# app, I save the user's preferences to the config file. But
each time I release a new build of the app, something in .NET creates a
new folder (named for the build number) in Documents And Settings. The
result is the users lose all their settings and have to start over.

What is the standard way to allow users to maintain their settings when
they get a new version of a .NET app?

Here's the way I do it - ClickOnce does something similar automatically.
You need to make use of the SettingsBase.Up grade method.

Add a Setting to your project called ApplicationVers ion, then use code like
the following in the startup of your applicaiton:

System.Reflecti on.Assembly a =
System.Reflecti on.Assembly.Get ExecutingAssemb ly();
Version appVersion = a.GetName().Ver sion;
string appVersionStrin g = appVersion.ToSt ring();

if (Properties.Set tings.Default.A pplicationVersi on != appVersion.ToSt ring())
{
Properties.Sett ings.Default.Up grade();
Properties.Sett ings.Default.Ap plicationVersio n = appVersionStrin g;
}

-cd

[davepkz]

This suggestion worked perfectly. Thanks.
Dave
Carl Daniel [VC++ MVP] wrote:

Here's the way I do it - ClickOnce does something similar automatically.
You need to make use of the SettingsBase.Up grade method.

Add a Setting to your project called ApplicationVers ion, then use code like
the following in the startup of your applicaiton:
...