internal static void MigrateUserSettings(ApplicationSettingsBase settings)
{
if (settings is IMigrateSettings)
{
IMigrateSettings customMigrator = (IMigrateSettings)settings;
foreach (SettingsProperty property in settings.Properties)
{
if (!SettingsPropertyExtensions.IsUserScoped(property))
{
continue;
}
object previousValue = settings.GetPreviousVersion(property.Name);
//need to do this to force the values to load before accessing the PropertyValues in order to migrate,
//otherwise the SettingsPropertyValue will always be null.
var iForceSettingsPropertyValuesToLoad = settings[property.Name];
var currentValue = settings.PropertyValues[property.Name];
MigrateProperty(customMigrator, MigrationScope.User, currentValue, previousValue);
}
}
else
{
settings.Upgrade();
}
//Don't need to reload because the user settings will be current.
SaveIfDirty(settings);
}
public static void EnsureMaintainUserSettings(this ApplicationSettingsBase settings, string keyName)
{
if (settings == null)
{
return;
}
var keyValue = settings[keyName];
var defaultValue = settings.Properties[keyName]?.DefaultValue;
if (keyValue != defaultValue)
{
return;
}
foreach (SettingsProperty prop in settings.Properties)
{
if (!prop.Attributes.ContainsKey(typeof(UserScopedSettingAttribute)))
{
continue;
}
var result = settings.GetPreviousVersion(prop.Name);
settings[prop.Name] = result;
}
settings.Save();
}
