private static void GetListName(ShoppingList sList)
{
//sList.NameChanged += new NameChangedDelegate(OnNameChanged); // Whenever somone invokes this delegate instance, call OnNameChanged
// code below is equivalent to that above. C# does the above behind the scenes.
sList.NameChanged += OnNameChanged;
sList._name = "Default list"; // sets the field, rather than the property which doesn't fire the event.
try
{
Console.WriteLine("Name your shopping list.");
sList.Name = Console.ReadLine();
}
catch (ArgumentException ex)
{
Console.WriteLine(ex.Message);
}
}
static void OnExit(object sender, ExitingEventArgs args) // here's where the args are packaged. not su
{
ShoppingList shopList = new ShoppingList();
bool success = false;
int tries = 3;
while (!success && tries > 0)
{
try
{
using (StreamWriter outputFile = File.CreateText(@"c:\Created_Lists\" + args.listName + "-List.txt"))
{
shopList.PrintList(outputFile, args.listContents); // Some troube calling as the list itself was hard to access
}
using (StreamWriter outputFile = File.CreateText(@"c:\Created_Lists\" + args.listName + "-List.csv"))
{
shopList.CSVList(outputFile, args.listContents);
}
success = true;
}
catch (DirectoryNotFoundException)
{
Console.WriteLine($"The file wasn't saved. There may be illegal characters in your list name \"{args.listName}\". Try another (y/n)?");
string userResponse = Console.ReadLine().ToLower();
if (userResponse == "y" || userResponse == "yes")
{
Console.WriteLine("Enter the new name.");
args.listName = Console.ReadLine();
}
tries--;
if (tries <= 0)
{
Console.WriteLine("This didn't work. Sorry, closing without saving.");
}
}
catch (ArgumentException)
{
Console.WriteLine($"The file wasn't saved. There were illegal characters in your list name \"{args.listName}\". Try another (y/n)?");
string userResponse = Console.ReadLine().ToLower();
if (userResponse == "y" || userResponse == "yes")
{
Console.WriteLine("Enter the new name.");
args.listName = Console.ReadLine();
}
tries--;
if (tries <= 0)
{
Console.WriteLine("This didn't work. Sorry, closing without saving.");
}
}
catch (NotSupportedException)
{
Console.WriteLine($"The file wasn't saved. There may be illegal characters in your list name, probably at the beginning. \"{args.listName}\". Try another (y/n)?");
string userResponse = Console.ReadLine().ToLower();
if (userResponse == "y" || userResponse == "yes")
{
Console.WriteLine("Enter the new name.");
args.listName = Console.ReadLine();
}
tries--;
if (tries <= 0)
{
Console.WriteLine("This didn't work. Sorry, closing without saving.");
}
}
}
}
