public List <Expertise> UpdateExpertise(Expertise ex)
{
DBservices db = new DBservices();
if (db.UpdateExpertise(ex) == 1)
{
return(db.GetAllExpertisesFromSQL());
}
else
{
return(null);
}
}
public List <Expertise> AddNewExpertise(Expertise exper)
{
DBservices db = new DBservices();
if (db.AddNewExpertise(exper) == 1)
{
return(db.GetAllExpertisesFromSQL());
}
else
{
return(null);
}
}
public List <Expertise> DeleteExpertise(Expertise exp)
{
DBservices db = new DBservices();
int num = db.GetAllExpertisesFromSQL().Count;
db.DeleteExpertiseFromSQL(exp);
List <Expertise> expertises = db.GetAllExpertisesFromSQL();
if (expertises.Count + 1 == num)
{
return(expertises);
}
else
{
return(null);
}
}