Public MustInherit Class ApplicationSettingsBase
    Inherits SettingsBase
    Implements INotifyPropertyChanged

Dim instance As ApplicationSettingsBase

public abstract class ApplicationSettingsBase : SettingsBase, INotifyPropertyChanged

public ref class ApplicationSettingsBase abstract : public SettingsBase, INotifyPropertyChanged

public abstract class ApplicationSettingsBase extends SettingsBase implements INotifyPropertyChanged

public abstract class ApplicationSettingsBase extends SettingsBase implements INotifyPropertyChanged

partial class Form1 : Form
{
    private FormSettings frmSettings1 = new FormSettings();

    public Form1()
    {
        InitializeComponent();
    }

    private void Form1_Load(object sender, EventArgs e)
    {
        //Associate settings property event handlers.
        frmSettings1.SettingChanging += new SettingChangingEventHandler(
                                            frmSettings1_SettingChanging);
        frmSettings1.SettingsSaving += new SettingsSavingEventHandler(
                                            frmSettings1_SettingsSaving);

        //Data bind settings properties with straightforward associations.
        Binding bndBackColor = new Binding("BackColor", frmSettings1, 
            "FormBackColor", true, DataSourceUpdateMode.OnPropertyChanged);
        this.DataBindings.Add(bndBackColor);
        Binding bndSize = new Binding("Size", frmSettings1, "FormSize", 
            true, DataSourceUpdateMode.OnPropertyChanged);
        this.DataBindings.Add(bndSize);
        Binding bndLocation = new Binding("Location", frmSettings1, 
            "FormLocation", true, DataSourceUpdateMode.OnPropertyChanged);
        this.DataBindings.Add(bndLocation);

        //For more complex associations, manually assign associations.
        String savedText = frmSettings1.FormText;
        //Since there is no default value for FormText.
        if (savedText != null)
            this.Text = savedText;
    }

    private void Form1_FormClosing(object sender, FormClosingEventArgs e)
    {
        //Synchronize manual associations first.
        frmSettings1.FormText = this.Text + '.';
        frmSettings1.Save();
    }

    private void btnBackColor_Click(object sender, EventArgs e)
    {
        if (DialogResult.OK == colorDialog1.ShowDialog())
        {
            Color c = colorDialog1.Color;
            this.BackColor = c;
        }
    }

    private void btnReset_Click(object sender, EventArgs e)
    {
        frmSettings1.Reset();
        this.BackColor = SystemColors.Control;
    }

    private void btnReload_Click(object sender, EventArgs e)
    {
        frmSettings1.Reload();
    }

    void frmSettings1_SettingChanging(object sender, SettingChangingEventArgs e)
    {
        tbStatus.Text = e.SettingName + ": " + e.NewValue;
    }

    void frmSettings1_SettingsSaving(object sender, CancelEventArgs e)
    {
        //Should check for settings changes first.
        DialogResult dr = MessageBox.Show(
                        "Save current values for application settings?",
                        "Save Settings", MessageBoxButtons.YesNo);
        if (DialogResult.No == dr)
        {
            e.Cancel = true;
        }
    }

}

//Application settings wrapper class
sealed class FormSettings : ApplicationSettingsBase
{
    [UserScopedSettingAttribute()]
    public String FormText
    {
        get { return (String)this["FormText"]; }
        set { this["FormText"] = value; }
    }

    [UserScopedSetting()]
    [DefaultSettingValueAttribute("0, 0")]
    public Point FormLocation
    {
        get { return (Point)(this["FormLocation"]); }
        set { this["FormLocation"] = value; }
    }

    [UserScopedSetting()]
    [DefaultSettingValueAttribute("225, 200")]
    public Size FormSize
    {
        get { return (Size)this["FormSize"]; }
        set { this["FormSize"] = value; }
    }

    [UserScopedSetting()]
    [DefaultSettingValueAttribute("LightGray")]
    public Color FormBackColor
    {
        get { return (Color)this["FormBackColor"]; }
        set { this["FormBackColor"] = value; }
    }

}
 

    FormSettings ^ formSettings;

public:
    AppSettingsForm()
    {
        formSettings = gcnew FormSettings;
        InitializeComponent();
    }

private:
    void AppSettingsForm_Load(Object^ sender, EventArgs^ e)
    {
        //Associate settings property event handlers.
        formSettings->SettingChanging += gcnew SettingChangingEventHandler(
            this, &AppSettingsForm::FormSettings_SettingChanging);
        formSettings->SettingsSaving += gcnew SettingsSavingEventHandler(
            this,&AppSettingsForm::FormSettings_SettingsSaving);

        //Data bind settings properties with straightforward associations.
        Binding^ backColorBinding = gcnew Binding("BackColor", 
            formSettings, "FormBackColor", true, 
            DataSourceUpdateMode::OnPropertyChanged);
        this->DataBindings->Add(backColorBinding);
        Binding^ sizeBinding = gcnew Binding("Size", formSettings,
            "FormSize", true, DataSourceUpdateMode::OnPropertyChanged);
        this->DataBindings->Add(sizeBinding);
        Binding^ locationBinding = gcnew Binding("Location", formSettings,
            "FormLocation", true, DataSourceUpdateMode::OnPropertyChanged);
        this->DataBindings->Add(locationBinding);

        //For more complex associations, manually assign associations.
        String^ savedText = formSettings->FormText;
        //Since there is no default value for FormText.
        if (savedText != nullptr)
        {
            this->Text = savedText;
        }
    }

private:
    void AppSettingsForm_FormClosing(Object^ sender,
        FormClosingEventArgs^ e)
    {
        //Synchronize manual associations first.
        formSettings->FormText = this->Text + '.';
        formSettings->Save();
    }

private:
    void BackColorButton_Click(Object^ sender, EventArgs^ e)
    {
        if (::DialogResult::OK == colorDialog->ShowDialog())
        {
            Color color = colorDialog->Color;
            this->BackColor = color;
        }
    }

private:
    void ResetButton_Click(Object^ sender, EventArgs^ e)
    {
        formSettings->Reset();
        this->BackColor = SystemColors::Control;
    }

private:
    void ReloadButton_Click(Object^ sender, EventArgs^ e)
    {
        formSettings->Reload();
    }

private:
    void FormSettings_SettingChanging(Object^ sender,
        SettingChangingEventArgs^ e)
    {
        statusDisplay->Text = e->SettingName + ": " + e->NewValue;
    }

private:
    void FormSettings_SettingsSaving(Object^ sender,
        CancelEventArgs^ e)
    {
        //Should check for settings changes first.
        ::DialogResult^ dialogResult = MessageBox::Show(
            "Save current values for application settings?",
            "Save Settings", MessageBoxButtons::YesNo);
        if (::DialogResult::No == dialogResult)
        {
            e->Cancel = true;
        }
    }
};