public static bool DeleteContact(DTOContact Contact)
{
try
{
DTOContacts availableContacts = GetContacts();
DTOContact ContactToDelete = availableContacts.Contacts.FirstOrDefault <DTOContact>(ct => ct.ContactId == Contact.ContactId);
if (ContactToDelete == null)
{
return(false);
}
else
{
availableContacts.Contacts.Remove(ContactToDelete);
availableContacts.ContactsCount = availableContacts.Contacts.Count;
SaveContacts(availableContacts.Contacts);
return(true);
}
}
catch
{
// Throw exception
return(false);
}
}
public static bool UpdateContact(DTOContact Contact)
{
try
{
DTOContacts availableContacts = GetContacts();
DTOContact ContactToUpdate = availableContacts.Contacts.FirstOrDefault <DTOContact>(ct => ct.ContactId == Contact.ContactId);
ContactToUpdate.EMailId = Contact.EMailId;
ContactToUpdate.FirstName = Contact.FirstName;
ContactToUpdate.HNo = Contact.HNo;
ContactToUpdate.ImagePath = Contact.ImagePath;
ContactToUpdate.LastName = Contact.LastName;
ContactToUpdate.PIN = Contact.PIN;
ContactToUpdate.RoadNo = Contact.RoadNo;
ContactToUpdate.State = Contact.State;
ContactToUpdate.Street = Contact.Street;
ContactToUpdate.ModifiedOn = DateTime.Now;
SaveContacts(availableContacts.Contacts);
return(true);
}
catch
{
// Throw exception
return(false);
}
}
public static bool AddNewContact(DTOContact Contact)
{
try
{
DTOContacts availableContacts = GetContacts();
availableContacts.Contacts.Add(Contact);
availableContacts.ContactsCount = availableContacts.Contacts.Count;
SaveContacts(availableContacts.Contacts);
return(true);
}
catch (Exception ex)
{
// Throw exception
return(false);
}
}
private static DTOContacts GetContacts()
{
FileStream fs = new FileStream(@"C:\Contacts.pk", FileMode.OpenOrCreate);
StreamReader sr = new StreamReader(fs);
string jsonContacts = sr.ReadToEnd();
List <DTOContact> contactList = JsonConvert.DeserializeObject <List <DTOContact> >(jsonContacts);
sr.Close();
fs.Close();
DTOContacts contacts = new DTOContacts();
if (contactList == null)
{
contacts.Contacts = new List <DTOContact>();
contacts.ContactsCount = 0;
}
else
{
contacts.Contacts = contactList;
contacts.ContactsCount = contactList.Count;
}
return(contacts);
}