static void UpdateAuthor()
{
int authorID;
string newfirstName, newlastName, newphoneNo, newAddress, newCity, newState;
try
{
using (var context = new BookDatabaseEntities())
{
Console.WriteLine("Enter author id to change auhtor detail:");
authorID = Int32.Parse(Console.ReadLine());
var au = context.Authors.Find(authorID);
Console.WriteLine("Enter new author first name:");
newfirstName = Console.ReadLine();
Console.WriteLine("Enter new author last name:");
newlastName = Console.ReadLine();
Console.WriteLine("Enter new author phone number:");
newphoneNo = Console.ReadLine();
Console.WriteLine("Enter new author address:");
newAddress = Console.ReadLine();
Console.WriteLine("Enter new author city:");
newCity = Console.ReadLine();
Console.WriteLine("Enter new author state:");
newState = Console.ReadLine();
au.FirstName = newfirstName;
au.LastName = newlastName;
au.Phone = newphoneNo;
au.Address = newAddress;
au.City = newCity;
au.State = newState;
context.SaveChanges();
Console.WriteLine("Author detail Successfully updated");
Console.WriteLine("");
ViewAuthor();
Console.ReadKey();
}
}
catch (Exception exception)
{
Console.WriteLine(
$"Unexpected error: { exception.Message }");
Console.ReadKey();
}
finally
{
Console.WriteLine("goodbye");
}
}
static void AddAuthor()
{
string firstName, lastName, phoneNo, address, city, state;
try
{
using (var context = new BookDatabaseEntities())
{
Console.WriteLine("Enter author first name:");
firstName = Console.ReadLine();
Console.WriteLine("Enter author last name:");
lastName = Console.ReadLine();
Console.WriteLine("Enter author phone number:");
phoneNo = Console.ReadLine();
Console.WriteLine("Enter author address:");
address = Console.ReadLine();
Console.WriteLine("Enter author city");
city = Console.ReadLine();
Console.WriteLine("Enter auhtor state");
state = Console.ReadLine();
var au = new Author();
au.FirstName = firstName;
au.LastName = lastName;
au.Phone = phoneNo;
au.Address = address;
au.City = city;
au.State = state;
context.Authors.Add(au);
context.SaveChanges();
Console.WriteLine("Author Detial Successfully Added");
Console.WriteLine("");
ViewAuthor();
Console.ReadKey();
}
}
catch (Exception exception)
{
Console.WriteLine(
$"Unexpected error: { exception.Message }");
Console.ReadKey();
}
finally
{
Console.WriteLine("goodbye");
}
}
static void ViewAuthor()
{
using (var context = new BookDatabaseEntities())
{
var query = (from au in context.Authors
select au);
Console.WriteLine($"{"AuthorID",-10} {"FirstName",-16} {"LastName",-18} {"PhoneNo",-13} {"Address ",-20} {"City",-12} {"State",8}");
foreach (var au in query)
{
Console.WriteLine("----------------------------------------------------------------------------------------------------------------------");
Console.WriteLine($"{au.AuthorID,-12}{au.FirstName,-17}{au.LastName,-17 }{au.Phone,-15}{au.Address,-22}{au.City,-17 }{au.State,-3}");
}
Console.ReadKey();
}
}
