public static Bookstore initialize(/*IMainFormNavigation imfn,*/ IDatabaseFunctions idbfuns, IRecommendationsComponent irecComp)
{
if (_instance == null)
{
lock (_mutex)
{
if (_instance == null)
{
_instance = new Bookstore(/*imfn,*/ idbfuns, irecComp);
}
}
}
return(_instance);
}
public RegisterHelper(Bookstore owner)
{
this.owner = owner;
registerMessage = "";
}