static void DisplayData(char option)
{
var viewModel = new ContactsViewModel();
switch (option)
{
case 'a':
Console.Clear();
Loader(5, 20);
Console.Clear();
var contacts = viewModel.DisplayAllContacts();
foreach (var contact in contacts)
{
Console.WriteLine($"{contact.Id}\t: {contact.FirstName} {contact.LastName} :{contact.TelephoneNumber}");
}
break;
case 'b':
{
Console.Clear();
Loader(5, 20);
Console.Clear();
Console.WriteLine("Enter user firstName");
var username = Console.ReadLine();
var results = viewModel.DisplaySearchResults(username);
foreach (var contact in results)
{
Console.WriteLine($"{contact.Id} : {contact.FirstName} {contact.LastName} :{contact.TelephoneNumber}");
}
break;
}
case 'c':
Console.Clear();
Loader(5, 20);
Console.Clear();
Console.WriteLine("Enter Contact ID");
var usernameId = Convert.ToInt32(Console.ReadLine());
viewModel.DisplayContactById(usernameId);
break;
case 'd':
Environment.Exit(0);
break;
default:
Console.WriteLine("Invalid Input");
break;
}
}