private void OnSettingChanged(string propertyName, object value)
{
ApplicationData.Current.RoamingSettings.Values[propertyName] = value;
instance.OnSettingsChanged();
instance.OnPropertyChanged(propertyName);
}
private async void OnSettingChanged(string propertyName, object value)
{
if (propertyName == "MallKioskDemoCustomSettings")
{
// save to file as the content is too big to be saved as a string-like setting
StorageFile file = await ApplicationData.Current.RoamingFolder.CreateFileAsync(
"MallKioskDemoCustomSettings.xml",
CreationCollisionOption.ReplaceExisting);
using (Stream stream = await file.OpenStreamForWriteAsync())
{
using (StreamWriter writer = new StreamWriter(stream))
{
await writer.WriteAsync(value.ToString());
}
}
}
else
{
ApplicationData.Current.RoamingSettings.Values[propertyName] = value;
}
instance.OnSettingsChanged();
instance.OnPropertyChanged(propertyName);
}