Menu.cs
2.46 KB
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using System;
using System.Collections.Generic;
using System.Security.Cryptography.X509Certificates;
namespace MenuSystem
{
public class Menu
{
private int _menuLevel;
private const string MenuCommandExit = "X";
private const string MenuCommandReturnToPrevious = "P";
private Dictionary<string, MenuItem> _menuItemsDictionary = new Dictionary<string, MenuItem>();
public Menu(int menuLevel = 0)
{
_menuLevel = menuLevel;
}
public string Title { get; set; }
public Dictionary<string, MenuItem> MenuItemsDictionary
{
get => _menuItemsDictionary;
set
{
_menuItemsDictionary = value;
if (_menuLevel >= 2)
{
_menuItemsDictionary.Add(MenuCommandReturnToPrevious, new MenuItem() {Title = "Back"});
}
if (_menuLevel >= 1)
{
_menuItemsDictionary.Add(MenuCommandExit, new MenuItem() {Title = "Exit"});
}
}
}
public string Run()
{
var command = "";
do
{
Console.WriteLine(Title);
Console.WriteLine("========================");
foreach (var menuItem in MenuItemsDictionary)
{
Console.Write(menuItem.Key);
Console.Write(" ");
Console.WriteLine(menuItem.Value);
}
Console.WriteLine("----------");
Console.Write(">");
command = Console.ReadLine()?.Trim().ToUpper() ?? "";
var returnCommand = "";
if (MenuItemsDictionary.ContainsKey(command))
{
var menuItem = MenuItemsDictionary[command];
if (menuItem.CommandToExecute != null)
{
returnCommand = menuItem.CommandToExecute(); // run the command
break;
}
}
if (returnCommand == MenuCommandExit)
{
command = MenuCommandExit;
}
} while (command != MenuCommandExit &&
command != MenuCommandReturnToPrevious);
return command;
}
}
}