public bool CanUpgradeSharedPropertyValues(SettingsContext context)
{
Type settingsClass = (Type)context["SettingsClassType"];
string settingsKey = (string)context["SettingsKey"];
var group = new SettingsGroupDescriptor(settingsClass);
var storedValues = _store.GetSettingsValues(group, null, settingsKey);
return storedValues == null || storedValues.Count == 0;
}