Storing and accessing application settings

I want to store the location and size of my application window
when the app closes and reuse this information when the app
is started again. How can I do this?
This is what my app code looks like:

public class MyApp : Application
{
protected override void OnStartup(StartupEventArgs e)
{
MyWin win = new MyWin();

win.Left = 222;
win.Top = 111;
win.Width = 666;
win.Height = 444;

win.Show();
}
}

Instead of having the fixed numbers I want to read them
from a location where they are stored when the app closes.

Thanks,
fö

You can use the new application settings concept from .NET 2.0

You add to the project settings the window parameters (four doubles or a
rectangle),
at startup you read the values, at shutdown you save the values.

For example, right-click the project -> Properties -> Settings
Add 4 settings (WindowLeft, WindowTop, WindowWidth, WindowHeight) of type
double, scope User and some default values.

On startup:
win.Left = Settings.Default.WindowLeft;
win.Top = Settings.Default.WindowTop;
....

On shutdown or when the window is closed:
Settings.Default.WindowLeft = win.Left;
Settings.Default.WindowTop = win.Top;
....
Settings.Default.Save();

--
Valentin Iliescu [MVP C#]


"fö" wrote:

> I want to store the location and size of my application window
> when the app closes and reuse this information when the app
> is started again. How can I do this?
> This is what my app code looks like:
>
> public class MyApp : Application
> {
> protected override void OnStartup(StartupEventArgs e)
> {
> MyWin win = new MyWin();
>
> win.Left = 222;
> win.Top = 111;
> win.Width = 666;
> win.Height = 444;
>
> win.Show();
> }
> }
>
> Instead of having the fixed numbers I want to read them
> from a location where they are stored when the app closes.
>
> Thanks,
> fö
>

Hi Valentin,

well that sounds real good, but it doesn't work!
The compiler does not know the type "Settings"
(I suppose it should be in namespace System.Configuration).
Furthermore the Dec CTP SDK Documentation does not know
a Settings class.

In addition the SDK documents a class ConfigurationManager
which should have an AppSettings property of type
AppSettingsSection (all included in System.Configuration).
But even these types are not known by the compiler.

So what's going wrong?

Thanks.

"viliescu" wrote:

> You can use the new application settings concept from .NET 2.0
>
> You add to the project settings the window parameters (four doubles or a
> rectangle),
> at startup you read the values, at shutdown you save the values.
>
> For example, right-click the project -> Properties -> Settings
> Add 4 settings (WindowLeft, WindowTop, WindowWidth, WindowHeight) of type
> double, scope User and some default values.
>
> On startup:
> win.Left = Settings.Default.WindowLeft;
> win.Top = Settings.Default.WindowTop;
> ...
>
> On shutdown or when the window is closed:
> Settings.Default.WindowLeft = win.Left;
> Settings.Default.WindowTop = win.Top;
> ...
> Settings.Default.Save();
>
> --
> Valentin Iliescu [MVP C#]
>
>
> "fö" wrote:
>
> > I want to store the location and size of my application window
> > when the app closes and reuse this information when the app
> > is started again. How can I do this?
> > This is what my app code looks like:
> >
> > public class MyApp : Application
> > {
> > protected override void OnStartup(StartupEventArgs e)
> > {
> > MyWin win = new MyWin();
> >
> > win.Left = 222;
> > win.Top = 111;
> > win.Width = 666;
> > win.Height = 444;
> >
> > win.Show();
> > }
> > }
> >
> > Instead of having the fixed numbers I want to read them
> > from a location where they are stored when the app closes.
> >
> > Thanks,
> > fö
> >

Settings class is not in .Net libraries but is created automatically in the
project (look in Solution Explorer for Properties directory and you will find
the Settings.Designer.cs file).
It is defined in MyProject.Properties namespace (if "MyProject" is the name
of the project) so you'll have to import it.
--
Valentin Iliescu [MVP C#]


"fö" wrote:

> Hi Valentin,
>
> well that sounds real good, but it doesn't work!
> The compiler does not know the type "Settings"
> (I suppose it should be in namespace System.Configuration).
> Furthermore the Dec CTP SDK Documentation does not know
> a Settings class.
>
> In addition the SDK documents a class ConfigurationManager
> which should have an AppSettings property of type
> AppSettingsSection (all included in System.Configuration).
> But even these types are not known by the compiler.
>
> So what's going wrong?
>
> Thanks.
>
> "viliescu" wrote:
>
> > You can use the new application settings concept from .NET 2.0
> >
> > You add to the project settings the window parameters (four doubles or a
> > rectangle),
> > at startup you read the values, at shutdown you save the values.
> >
> > For example, right-click the project -> Properties -> Settings
> > Add 4 settings (WindowLeft, WindowTop, WindowWidth, WindowHeight) of type
> > double, scope User and some default values.
> >
> > On startup:
> > win.Left = Settings.Default.WindowLeft;
> > win.Top = Settings.Default.WindowTop;
> > ...
> >
> > On shutdown or when the window is closed:
> > Settings.Default.WindowLeft = win.Left;
> > Settings.Default.WindowTop = win.Top;
> > ...
> > Settings.Default.Save();
> >
> > --
> > Valentin Iliescu [MVP C#]
> >
> >
> > "fö" wrote:
> >
> > > I want to store the location and size of my application window
> > > when the app closes and reuse this information when the app
> > > is started again. How can I do this?
> > > This is what my app code looks like:
> > >
> > > public class MyApp : Application
> > > {
> > > protected override void OnStartup(StartupEventArgs e)
> > > {
> > > MyWin win = new MyWin();
> > >
> > > win.Left = 222;
> > > win.Top = 111;
> > > win.Width = 666;
> > > win.Height = 444;
> > >
> > > win.Show();
> > > }
> > > }
> > >
> > > Instead of having the fixed numbers I want to read them
> > > from a location where they are stored when the app closes.
> > >
> > > Thanks,
> > > fö
> > >

Thanks, it works!

"viliescu" wrote:

> Settings class is not in .Net libraries but is created automatically in the
> project (look in Solution Explorer for Properties directory and you will find
> the Settings.Designer.cs file).
> It is defined in MyProject.Properties namespace (if "MyProject" is the name
> of the project) so you'll have to import it.
> --
> Valentin Iliescu [MVP C#]
>
>
> "fö" wrote:
>
> > Hi Valentin,
> >
> > well that sounds real good, but it doesn't work!
> > The compiler does not know the type "Settings"
> > (I suppose it should be in namespace System.Configuration).
> > Furthermore the Dec CTP SDK Documentation does not know
> > a Settings class.
> >
> > In addition the SDK documents a class ConfigurationManager
> > which should have an AppSettings property of type
> > AppSettingsSection (all included in System.Configuration).
> > But even these types are not known by the compiler.
> >
> > So what's going wrong?
> >
> > Thanks.
> >
> > "viliescu" wrote:
> >
> > > You can use the new application settings concept from .NET 2.0
> > >
> > > You add to the project settings the window parameters (four doubles or a
> > > rectangle),
> > > at startup you read the values, at shutdown you save the values.
> > >
> > > For example, right-click the project -> Properties -> Settings
> > > Add 4 settings (WindowLeft, WindowTop, WindowWidth, WindowHeight) of type
> > > double, scope User and some default values.
> > >
> > > On startup:
> > > win.Left = Settings.Default.WindowLeft;
> > > win.Top = Settings.Default.WindowTop;
> > > ...
> > >
> > > On shutdown or when the window is closed:
> > > Settings.Default.WindowLeft = win.Left;
> > > Settings.Default.WindowTop = win.Top;
> > > ...
> > > Settings.Default.Save();
> > >
> > > --
> > > Valentin Iliescu [MVP C#]
> > >
> > >
> > > "fö" wrote:
> > >
> > > > I want to store the location and size of my application window
> > > > when the app closes and reuse this information when the app
> > > > is started again. How can I do this?
> > > > This is what my app code looks like:
> > > >
> > > > public class MyApp : Application
> > > > {
> > > > protected override void OnStartup(StartupEventArgs e)
> > > > {
> > > > MyWin win = new MyWin();
> > > >
> > > > win.Left = 222;
> > > > win.Top = 111;
> > > > win.Width = 666;
> > > > win.Height = 444;
> > > >
> > > > win.Show();
> > > > }
> > > > }
> > > >
> > > > Instead of having the fixed numbers I want to read them
> > > > from a location where they are stored when the app closes.
> > > >
> > > > Thanks,
> > > > fö
> > > >