private static void TakeStartupInput(out bool isValidToContinue, out List myList)
{
Console.Write("Please enter the size of the list: ");
int size = 0;
isValidToContinue = false;
try
{
size = int.Parse(Console.ReadLine());
isValidToContinue = true;
}
catch (FormatException)
{
Console.WriteLine("Sorry your input is not valid.");
EndOfProgram(isValidToContinue); // Application end with error.
}
catch (Exception)
{
Console.WriteLine("Operation can not be done due to some problem");
EndOfProgram(isValidToContinue); // Application end with error.
}
myList = new List(size);
}
private static void PerformOperationsOnList(List myList)
{
OperationMode mode = OperationMode.Input;
do
{
Console.WriteLine("\nInput");
Console.WriteLine("Insert");
Console.WriteLine("Search");
Console.WriteLine("Delete");
Console.WriteLine("Display");
Console.WriteLine("Quit\n");
Console.Write("Please enter your choise: ");
string choise = string.Empty;
try
{
choise = Console.ReadLine();
}
catch (FormatException)
{
Console.WriteLine
("Please enter valid input."); // Then go to next loop cycle to try again.
}
catch (Exception)
{
Console.WriteLine
("Operation can not be done due to some problem"); // Then go to next loop cycle to try again.
}
if (choise != string.Empty)
{
try
{
mode = (OperationMode)Enum.Parse(typeof(OperationMode), choise, true);
myList.PerformOperationOnList(mode); // Perform logic which is in the class library.
}
catch (ArgumentException)
{
Console.WriteLine("Please enter valid input.");
}
}
} while (mode != OperationMode.Quit);
}