private static void PromtLoop(ShoppingList sList)
{
sList.ExitingProgram += OnExit; // Pre-requisite, adds the subscriber to ExitingProgram
DecisionResult choosing = new DecisionResult();
var choice = choosing.Ask();
while (choice != DecisionResult.DecisionCode.Exit)
{
switch (choice)
{
case DecisionResult.DecisionCode.Add:
sList.AddToList();
Console.WriteLine("");
Console.WriteLine(sList.Name);
sList.PrintList(Console.Out);
Console.WriteLine("");
choice = choosing.Ask();
break;
case DecisionResult.DecisionCode.Subtract:
sList.RemoveFromList();
Console.WriteLine("");
Console.WriteLine(sList.Name); // Why won't it work to call this in the .PrintList() method?
sList.PrintList(Console.Out);
Console.WriteLine("");
choice = choosing.Ask();
break;
}
}
sList.ExitNow(); // 1. This is the trigger of the event, goto ShoppingList
}
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.");
}
}
}
}