using System.Collections.ObjectModel; using System.ComponentModel; using System.Runtime.CompilerServices; namespace YOUserbase; public partial class UserOverviewPage : ContentPage { public int _index = 0; private string details; private string firstname; private string lastname; private string birthDate; public string Details { get => details; set => SetProperty(ref details, value); } public string Firstname { get => firstname; set => SetProperty(ref firstname, value); } public string Lastname { get => lastname; set => SetProperty(ref lastname, value); } public string BirthDate { get => birthDate; set => SetProperty(ref birthDate, value); } public UserOverviewPage() { InitializeComponent(); users.ItemsSource = Data.Users; } private async void OnAdd(object sender, EventArgs e) { await Navigation.PushAsync(new CreateUserPage()); Console.WriteLine(Data.Users); } private async void OnDeleteItem(object sender, EventArgs e) { Button btn = (Button) sender; var id = Int32.Parse(btn.ClassId); var user = Data.Users.FirstOrDefault(usr => usr.Id == id); var action = await DisplayAlert("Irreversible action", "Do you really want to delete this user?", "Yes", "No"); if(action) { Data.Users.Remove(user); } } private async void OnEditItem(object sender, EventArgs e) { Button btn = (Button) sender; var id = Int32.Parse(btn.ClassId); var user = Data.Users.FirstOrDefault(usr => usr.Id == id); await Navigation.PushAsync(new CreateUserPage(user)); } protected bool SetProperty(ref T field, T newValue, [CallerMemberName] string propertyName = null) { if(!Equals(field, newValue)) { field = newValue; return true; } return false; } }