static void Main(string[] args)
{
///Employee class array with each of employees data
List <Employee> employeeList = Read();
// To use IComparer
Employee.EmployeeComparer compareEmployee = Employee.GetComparer();
// Display data options and invoke collection sorting method
// Main method
MainSelectionMethod(employeeList, compareEmployee);
}
/////////////////////////////////////////////////////////////////////////////////
/// <summary>
/// Based off the user selection, this method will invoke one of cases
/// To compare data and sort using IComparer
/// </summary>
/// <param name="employeeList">a class with employee data</param>
/// <param name="selection">user selection input</param>
/// <param name="compareEmployee">Employee.EmployeeComparer</param>
static void CollectionSort(List <Employee> employeeList, int selection, Employee.EmployeeComparer compareEmployee)
{
switch (selection)
{
//Sorting method for Name ASC
case 1:
compareEmployee.WhichComparison = Employee.EmployeeComparer.ComparisonType.Name;
employeeList.Sort(compareEmployee);
break;
//Sorting Method For number ASC
case 2:
compareEmployee.WhichComparison = Employee.EmployeeComparer.ComparisonType.Number;
employeeList.Sort(compareEmployee);
break;
//Sorting Method For RATE DESC
case 3:
compareEmployee.WhichComparison = Employee.EmployeeComparer.ComparisonType.Rate;
employeeList.Sort(compareEmployee);
employeeList.Reverse();
break;
//Sorting Method For Hours DESC
case 4:
compareEmployee.WhichComparison = Employee.EmployeeComparer.ComparisonType.Hours;
employeeList.Sort(compareEmployee);
employeeList.Reverse();
break;
//Sorting Method For Gross DESC
case 5:
compareEmployee.WhichComparison = Employee.EmployeeComparer.ComparisonType.Gross;
employeeList.Sort(compareEmployee);
employeeList.Reverse();
break;
}
}
/// <summary>
/// LOOP IF user selection is not 6
/// Get user input from the console
/// IF user selection is from 1 to 5
/// THEN invoke Sort() method to sort employee data depending on user option
/// PRINT OUT employee data
/// ELSE IF user selection is equal to 6 then close console
/// ELSE PRINT OUT invalid input message
/// </summary>
/// <param name="employeeList">list of employees</param>
/// <param name="compareEmployee">EmployeeComparer</param>
private static void MainSelectionMethod(List <Employee> employeeList, Employee.EmployeeComparer compareEmployee)
{
int selection = 0; //Figure out what option user selects
while (selection != 6)
{
DisplayOptions();
string userChoice = Console.ReadLine();
if (int.TryParse(userChoice, out selection))
{
Console.Clear(); //Clear console for each run
if (selection > 0 && selection < 6)
{
Console.WriteLine(PrintTableValues()); //print out table header
//before displaying data, sort the data using IComparer
CollectionSort(employeeList, selection, compareEmployee);
for (int printE = 0; printE < employeeList.Count(); printE++)
{
Console.WriteLine(employeeList[printE]);
}
Console.WriteLine();
}
else if (selection == 6)
{
Environment.Exit(0); //close console function
}
else
{
Console.WriteLine("\r\n*** Invalid Choice - Try Again ***\r\n");
}
}
else
{
Console.WriteLine("\r\n*** Invalid Choice - Try Again ***\r\n");
}
}
}
