public string InsertContact(Contact contact)
{
if (contact != null)
{
using (StudyDBEntities Obj = new StudyDBEntities())
{
Obj.Contacts.Add(contact);
Obj.SaveChanges();
return("Contact Added Successfully");
}
}
else
{
return("Contact Not Inserted! Try Again");
}
}
public string DeleteContact(Contact contact)
{
if (contact != null)
{
using (StudyDBEntities Obj = new StudyDBEntities())
{
var Contact_ = Obj.Entry(contact);
if (Contact_.State == EntityState.Detached)
{
Obj.Contacts.Attach(contact);
Obj.Contacts.Remove(contact);
}
Obj.SaveChanges();
return("Contact Deleted Successfully");
}
}
else
{
return("Contact Not Deleted! Try Again");
}
}
public string UpdateContact(Contact contact)
{
if (contact != null)
{
using (StudyDBEntities Obj = new StudyDBEntities())
{
var Contact_ = Obj.Entry(contact);
Contact contact_ = Obj.Contacts.Where(x => x.ID == contact.ID).FirstOrDefault();
contact_.FirstName = contact.FirstName;
contact_.LastName = contact.LastName;
contact_.Email = contact.Email;
contact_.PhoneNumber = contact.PhoneNumber;
Obj.SaveChanges();
return("Contact Updated Successfully");
}
}
else
{
return("Contact Not Updated! Try Again");
}
}